/* =====================================================================
   Font fallback overrides — prevent CLS when Inter/JetBrains Mono swap in
   ---------------------------------------------------------------------
   Until the web fonts arrive, the browser uses the system fallback. The
   fallback character widths differ from Inter, so the swap nudges every
   line by a few pixels — that adds up to ~0.08 CLS on a long page.
   Defining a fake @font-face that proxies "Helvetica Neue" with size-adjust
   makes the fallback render with Inter's metrics, so the swap is invisible.
   ===================================================================== */
@font-face {
  font-family: "Inter Fallback";
  src: local("Helvetica Neue"), local("Arial");
  /* Inter's ascent/descent/x-height are ~107% of Helvetica's. */
  size-adjust: 107%;
  ascent-override: 90%;
  descent-override: 22.43%;
  line-gap-override: 0%;
}
@font-face {
  font-family: "JetBrains Mono Fallback";
  src: local("Menlo"), local("Consolas"), local("Courier New");
  size-adjust: 95%;
  ascent-override: 100%;
  descent-override: 25%;
  line-gap-override: 0%;
}

/* =====================================================================
   Anish Saji Kumar — portfolio stylesheet (2026 edition)
   ---------------------------------------------------------------------
   Hand-written. No framework, no build step.

   Modern features in use (with graceful fallback in older browsers):
     · light-dark()          — single token covers light + dark
     · color-mix()           — derive shadows / glows from accent
     · oklch()               — perceptually-uniform color picking
     · text-wrap: balance    — pretty wrapped headings
     · @container queries    — pillar / skill grids re-flow by container
     · scroll-driven anim    — reveal via animation-timeline: view()
     · @view-transition      — smooth fade when switching theme
     · popover attribute     — theme picker + mobile menu sheet
     · CSS nesting           — used in newer blocks for readability
   ===================================================================== */


/* ---------------------------------------------------------------------
   1. THEME TOKENS — six brand themes + paper/dark surfaces
   ---------------------------------------------------------------------
   Every theme defines just its accent triple. Surfaces use light-dark()
   so a single value covers both modes. Adding a 7th theme = 5 lines.
   --------------------------------------------------------------------- */
:root {
  /* Default theme = forest (will be overridden by [data-theme="..."]) */
  --accent:       #4ea876;
  --accent-soft:  #7fc89b;
  --accent-deep:  #2e7a4f;
  --accent-glow:  color-mix(in oklch, var(--accent) 30%, transparent);
  --accent-wash:  color-mix(in oklch, var(--accent) 12%, transparent);

  /* Surfaces — light-dark() picks per scheme automatically */
  --bg:          light-dark(#fafaf7, #0b1220);
  --bg-alt:      light-dark(#f3f1ea, #0f172a);
  --bg-card:     light-dark(#ffffff, #131c2e);
  --bg-glass:    light-dark(rgba(255,255,255,0.72), rgba(11,18,32,0.72));

  --fg:          light-dark(#0f172a, #e2e8f0);
  --ink-1:       light-dark(#0f172a, #f1f5f9);
  --ink-2:       light-dark(#475569, #94a3b8);
  --ink-3:       light-dark(#94a3b8, #64748b);
  --line:        light-dark(rgba(15,23,42,0.10), rgba(226,232,240,0.10));
  --line-strong: light-dark(rgba(15,23,42,0.18), rgba(226,232,240,0.18));

  --shadow-1:    light-dark(0 1px 2px rgba(15,23,42,0.04), 0 1px 2px rgba(0,0,0,0.30)),
                 light-dark(0 4px 12px rgba(15,23,42,0.05), 0 4px 12px rgba(0,0,0,0.35));
  --shadow-2:    light-dark(0 12px 32px rgba(15,23,42,0.10), 0 12px 32px rgba(0,0,0,0.45));
  --shadow-glow: 0 0 0 1px var(--accent-glow), 0 18px 50px var(--accent-wash);

  /* Background mesh tints — derive from accent via color-mix */
  --mesh-1: color-mix(in oklch, var(--accent) 28%, transparent);
  --mesh-2: light-dark(rgba(135,169,226,0.25), rgba(96,165,250,0.20));
  --mesh-3: light-dark(rgba(196,181,253,0.22), rgba(167,139,250,0.18));

  /* Type scale — fluid clamp() */
  --fs-xs:   clamp(0.78rem, 0.74rem + 0.18vw, 0.86rem);
  --fs-sm:   clamp(0.88rem, 0.84rem + 0.20vw, 0.95rem);
  --fs-base: clamp(0.98rem, 0.93rem + 0.25vw, 1.06rem);
  --fs-md:   clamp(1.10rem, 1.03rem + 0.35vw, 1.22rem);
  --fs-lg:   clamp(1.28rem, 1.18rem + 0.55vw, 1.55rem);
  --fs-xl:   clamp(1.55rem, 1.40rem + 0.85vw, 2.05rem);
  --fs-2xl:  clamp(2.00rem, 1.70rem + 1.50vw, 2.85rem);
  --fs-3xl:  clamp(2.60rem, 2.15rem + 2.45vw, 4.20rem);
  --fs-4xl:  clamp(3.00rem, 2.30rem + 3.60vw, 5.50rem);

  /* Spacing scale */
  --sp-1: 0.25rem; --sp-2: 0.5rem;  --sp-3: 0.75rem;
  --sp-4: 1rem;    --sp-5: 1.5rem;  --sp-6: 2rem;
  --sp-7: 3rem;    --sp-8: 4rem;    --sp-9: 6rem;
  --sp-section: clamp(3.5rem, 2rem + 5vw, 7rem);

  --radius-1: 6px;
  --radius-2: 12px;
  --radius-3: 20px;
  --radius-pill: 999px;
  --t-fast:   140ms cubic-bezier(.4,0,.2,1);
  --t-medium: 280ms cubic-bezier(.4,0,.2,1);
  --t-slow:   560ms cubic-bezier(.16,1,.3,1);

  --container-max: 1180px;
  --nav-h: 68px;

  color-scheme: light dark;
}

/* Light + dark mode hooks. light-dark() reads color-scheme. */
:root[data-mode="light"] { color-scheme: light; }
:root[data-mode="dark"]  { color-scheme: dark;  }

/* ---- 6 named themes (only override accent) ---- */
:root[data-theme="bronze"]   { --accent: #b8825a; --accent-soft: #d4a373; --accent-deep: #8a5a36; }
:root[data-theme="midnight"] { --accent: #6d8eff; --accent-soft: #93b4ff; --accent-deep: #4a63c4; }
:root[data-theme="forest"]   { --accent: #4ea876; --accent-soft: #7fc89b; --accent-deep: #2e7a4f; }
:root[data-theme="plum"]     { --accent: #b56ec9; --accent-soft: #d59ce4; --accent-deep: #8240a0; }
:root[data-theme="solar"]    { --accent: #e89c2c; --accent-soft: #ffc66d; --accent-deep: #b06f10; }
:root[data-theme="slate"]    { --accent: #64748b; --accent-soft: #94a3b8; --accent-deep: #334155; }


/* ---------------------------------------------------------------------
   2. RESET + BASE
   --------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}
body {
  font-family: 'Inter', 'Inter Fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'kern', 'liga', 'cv11';
  overflow-x: hidden;
  position: relative;
  /* Heading wrap — modern browsers balance, others ignore */
  text-wrap: pretty;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-1);
}
strong { font-weight: 700; color: var(--ink-1); }
code {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  padding: 0.12em 0.4em;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-1);
  color: var(--ink-1);
}
::selection { background: var(--accent-glow); color: var(--ink-1); }
h1, h2, h3, .section__title, .hero__name { text-wrap: balance; }


/* ---------------------------------------------------------------------
   3. VIEW TRANSITION on theme switch — fades the whole page
   --------------------------------------------------------------------- */
@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 280ms;
  animation-timing-function: cubic-bezier(.4,0,.2,1);
}


/* ---------------------------------------------------------------------
   4. LAYOUT PRIMITIVES
   --------------------------------------------------------------------- */
.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}
.section {
  padding-block: var(--sp-section);
  position: relative;
  /* Skip layout/paint for sections fully offscreen — browser still keeps them
     accessible for find-in-page and screen readers. The size estimate keeps
     the scrollbar stable so we don't get jumpy scrolling once content settles. */
  content-visibility: auto;
  contain-intrinsic-size: 1px 800px;
}
.section--alt { background: var(--bg-alt); }
.section--contact { padding-block: var(--sp-section) calc(var(--sp-section) - 2rem); }

.section__eyebrow {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-3);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.section__eyebrow::before {
  content: ""; width: 24px; height: 1px; background: var(--accent);
}
.section__title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink-1);
  margin-bottom: var(--sp-5);
}
.section__title--small { font-size: var(--fs-lg); margin-top: var(--sp-6); margin-bottom: var(--sp-3); }
.section__sub  { color: var(--ink-2); font-size: var(--fs-md); max-width: 60ch; margin-bottom: var(--sp-6); }
.section__lead { color: var(--ink-2); font-size: var(--fs-md); max-width: 60ch; margin-bottom: var(--sp-5); }

.two-col { display: grid; grid-template-columns: 1fr; gap: var(--sp-7); }
@media (min-width: 820px) { .two-col { grid-template-columns: 1fr 1fr; } }


/* ---------------------------------------------------------------------
   5. ANIMATED BACKGROUND MESH
   --------------------------------------------------------------------- */
.bg-mesh {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none; overflow: hidden;
  /* Hint to the browser: this layer's contents only ever animate, never reflow. */
  contain: strict;
  /* Force a separate compositor layer so blob movement never re-paints the page. */
  transform: translateZ(0);
}
.bg-mesh__blob {
  position: absolute;
  width: 56vmax; height: 56vmax;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.85;
  /* will-change forces a backing layer; pair with translateZ to keep it on the GPU. */
  will-change: transform;
  transform: translateZ(0);
}
.bg-mesh__blob--1 { background: var(--mesh-1); top: -22%;    left: -18%;  animation: drift1 22s ease-in-out infinite alternate; }
.bg-mesh__blob--2 { background: var(--mesh-2); top:  30%;    right: -25%; animation: drift2 28s ease-in-out infinite alternate; }
.bg-mesh__blob--3 { background: var(--mesh-3); bottom: -28%; left: 25%;   animation: drift3 34s ease-in-out infinite alternate; }
@keyframes drift1 { 0% { transform: translate3d(0,0,0) scale(1); } 100% { transform: translate3d(8vw,6vh,0) scale(1.08); } }
@keyframes drift2 { 0% { transform: translate3d(0,0,0) scale(1); } 100% { transform: translate3d(-6vw,-4vh,0) scale(1.12); } }
@keyframes drift3 { 0% { transform: translate3d(0,0,0) scale(1); } 100% { transform: translate3d(-10vw,4vh,0) scale(0.92); } }


/* ---------------------------------------------------------------------
   6. SKIP + PROGRESS BAR + NAV + THEME MENU + MOBILE SHEET
   --------------------------------------------------------------------- */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink-1); color: var(--bg);
  padding: 0.6rem 1rem; border-radius: 0 0 var(--radius-2) 0;
  font-weight: 600; z-index: 100;
}
.skip:focus { left: 0; }

.progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px; z-index: 60;
  pointer-events: none;
}
.progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  box-shadow: 0 0 8px var(--accent-glow);
  transition: width 80ms linear;
}

.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg-glass);
  /* backdrop-filter is the single most expensive CSS property on weak GPUs.
     8px → 4px ≈ 4× cheaper to re-rasterize on every scroll frame. The visual
     difference is barely perceptible because the nav background is already
     mostly opaque via --bg-glass. */
  -webkit-backdrop-filter: saturate(160%) blur(4px);
          backdrop-filter: saturate(160%) blur(4px);
  border-bottom: 1px solid var(--line);
  /* Isolate paint to this layer so its blur doesn't invalidate ancestors. */
  contain: layout paint;
  transform: translateZ(0);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-h); gap: var(--sp-4);
}
.nav__brand {
  display: inline-flex; align-items: center; gap: 0.65rem;
  font-weight: 700; font-size: var(--fs-sm); color: var(--ink-1);
}
.nav__mark {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: light-dark(#0b1220, #0b1220);
  font-weight: 900; font-size: 1.05rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--accent-glow);
  transition: transform var(--t-medium);
}
.nav__brand:hover .nav__mark { transform: rotate(-6deg) scale(1.05); }
.nav__name { letter-spacing: -0.01em; }
@media (max-width: 540px) { .nav__name { display: none; } }

.nav__links {
  display: flex; gap: clamp(0.5rem, 1.5vw, 1.4rem);
  font-size: var(--fs-sm);
}
.nav__links a {
  color: var(--ink-2);
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius-1);
  font-weight: 500;
  position: relative;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__links a:hover { color: var(--ink-1); }
.nav__links a.is-active { color: var(--accent); }
.nav__links a.is-active::after {
  content: ""; position: absolute;
  left: 0.55rem; right: 0.55rem; bottom: -2px;
  height: 2px; background: var(--accent); border-radius: 2px;
}
@media (max-width: 820px) { .nav__links { display: none; } }

.nav__actions {
  display: inline-flex; align-items: center; gap: var(--sp-2);
}

.icon-btn {
  width: 38px; height: 38px;
  display: inline-grid; place-items: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  color: var(--ink-1); cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast),
              transform var(--t-fast), color var(--t-fast);
}
.icon-btn:hover { background: var(--bg-alt); border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }

/* show/hide sun vs moon based on resolved color-scheme */
.theme-toggle__sun  { display: block; }
.theme-toggle__moon { display: none; }
:root[data-mode="dark"]  .theme-toggle__sun  { display: none; }
:root[data-mode="dark"]  .theme-toggle__moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-mode="light"]) .theme-toggle__sun  { display: none; }
  :root:not([data-mode="light"]) .theme-toggle__moon { display: block; }
}

.menu-btn { display: none; }
@media (max-width: 820px) {
  .menu-btn { display: inline-grid; }
}

/* Theme picker popover */
.theme-pop {
  margin: 0; padding: var(--sp-3);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-2);
  background: var(--bg-card);
  color: var(--ink-1);
  box-shadow: var(--shadow-2);
  inset-inline-end: 1rem;
  inset-block-start: calc(var(--nav-h) + 0.5rem);
  inset-inline-start: auto;
  width: min(280px, calc(100vw - 1.5rem));
}
.theme-pop:popover-open {
  animation: popIn 180ms cubic-bezier(.4,0,.2,1);
}
@keyframes popIn {
  from { opacity: 0; transform: translateY(-6px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)    scale(1);    }
}
.theme-pop__title {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0 var(--sp-2);
  margin-bottom: var(--sp-2);
}
.theme-pop__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
}
.theme-swatch {
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  padding: 0.55rem 0.4rem;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  cursor: pointer;
  font-size: var(--fs-xs);
  color: var(--ink-2);
  transition: border-color var(--t-fast), transform var(--t-fast), color var(--t-fast);
}
.theme-swatch:hover { border-color: var(--accent); color: var(--ink-1); transform: translateY(-1px); }
.theme-swatch[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); }
.theme-swatch__chip {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 2px var(--bg-card);
}
.theme-swatch[data-theme="bronze"]   .theme-swatch__chip { background: linear-gradient(135deg, #b8825a, #d4a373); }
.theme-swatch[data-theme="midnight"] .theme-swatch__chip { background: linear-gradient(135deg, #6d8eff, #93b4ff); }
.theme-swatch[data-theme="forest"]   .theme-swatch__chip { background: linear-gradient(135deg, #4ea876, #7fc89b); }
.theme-swatch[data-theme="plum"]     .theme-swatch__chip { background: linear-gradient(135deg, #b56ec9, #d59ce4); }
.theme-swatch[data-theme="solar"]    .theme-swatch__chip { background: linear-gradient(135deg, #e89c2c, #ffc66d); }
.theme-swatch[data-theme="slate"]    .theme-swatch__chip { background: linear-gradient(135deg, #64748b, #94a3b8); }

/* Mobile-menu sheet (popover slides up from bottom) */
.menu-sheet {
  margin: 0; padding: var(--sp-6) var(--sp-5) calc(var(--sp-6) + env(safe-area-inset-bottom));
  border: 0;
  border-top: 1px solid var(--line-strong);
  border-radius: var(--radius-3) var(--radius-3) 0 0;
  background: var(--bg-card);
  color: var(--ink-1);
  width: 100vw; max-width: 100%;
  inset: auto 0 0 0;
  box-shadow: 0 -20px 60px rgba(0,0,0,0.25);
}
.menu-sheet:popover-open {
  animation: sheetUp 240ms cubic-bezier(.16,1,.3,1);
}
@keyframes sheetUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}
.menu-sheet__head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--sp-5);
}
.menu-sheet__title {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.menu-sheet__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.25rem; }
.menu-sheet__list a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.95rem 0.4rem;
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--ink-1);
  border-bottom: 1px solid var(--line);
}
.menu-sheet__list a::after {
  content: "→"; color: var(--accent); font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  transition: transform var(--t-fast);
}
.menu-sheet__list a:hover { color: var(--accent); }
.menu-sheet__list a:hover::after { transform: translateX(4px); }


/* ---------------------------------------------------------------------
   7. HERO
   --------------------------------------------------------------------- */
.hero {
  padding-block: clamp(4rem, 4rem + 6vw, 9rem) clamp(3rem, 2rem + 6vw, 7rem);
  text-align: center;
  position: relative;
}
.hero__inner { display: flex; flex-direction: column; align-items: center; gap: var(--sp-4); }

.hero__pill {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.4rem 0.95rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  letter-spacing: 0.04em;
  background: var(--bg-card);
  color: var(--ink-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-1);
}
.hero__pill-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34,197,94,0.18);
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 4px rgba(34,197,94,0.18); }
  50%      { box-shadow: 0 0 0 7px rgba(34,197,94,0.05); }
}

.hero__kicker {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-top: 0.4rem;
}

.hero__name {
  font-size: var(--fs-4xl);
  font-weight: 900;
  /* line-height was 1.02 — too tight; clipped the dot on lowercase i in italics */
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink-1);
  margin-block: 0.4rem;
  /* Give the line some headroom so italic ascenders/dots aren't cut off */
  padding-block: 0.1em;
}
/* Animated gradient on the middle word */
.hero__name-accent {
  /* Inline-block + extra padding so background-clip:text covers the dot of "i" */
  display: inline-block;
  padding: 0.05em 0.05em 0.08em;
  background: linear-gradient(110deg,
    var(--accent) 0%,
    var(--accent-soft) 30%,
    var(--accent) 60%,
    var(--accent-soft) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  font-style: italic;
  animation: shimmer 7s linear infinite;
}
@keyframes shimmer {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.hero__title {
  display: inline-flex; flex-wrap: wrap;
  justify-content: center; align-items: center;
  gap: 0.25rem 0.75rem;
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--ink-2);
}
.hero__title-sep { color: var(--accent); font-weight: 700; }

.hero__voice {
  font-size: var(--fs-md);
  color: var(--ink-2);
  max-width: 56ch;
  margin-top: 0.6rem;
}
.hero__voice strong { color: var(--ink-1); font-weight: 700; }

.hero__cta {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.hero__socials { display: inline-flex; gap: var(--sp-3); margin-top: var(--sp-3); }
.hero__social {
  width: 38px; height: 38px;
  display: inline-grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  color: var(--ink-2);
  transition: color var(--t-fast), border-color var(--t-fast),
              transform var(--t-fast), background var(--t-fast);
}
.hero__social:hover {
  color: var(--accent); border-color: var(--accent);
  background: var(--bg-card); transform: translateY(-2px);
}

.hero__location {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: var(--fs-sm); color: var(--ink-3);
  margin-top: var(--sp-3);
}

/* "Now" pill — live local time, refreshed by JS */
.hero__now {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  margin-top: var(--sp-2);
}
.hero__now-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  animation: pulseDot 2s ease-in-out infinite;
}

.hero__scroll {
  margin-top: var(--sp-7);
  display: inline-flex; flex-direction: column; align-items: center;
  color: var(--ink-3);
  animation: floatUpDown 2.6s ease-in-out infinite;
}
.hero__scroll-mouse {
  width: 22px; height: 36px;
  border: 2px solid var(--ink-3);
  border-radius: 12px;
  display: inline-grid; place-items: start center;
  padding-top: 6px;
}
.hero__scroll-wheel {
  width: 3px; height: 6px;
  background: var(--ink-3);
  border-radius: 2px;
  animation: wheelDrop 1.8s ease-in-out infinite;
}
@keyframes floatUpDown { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
@keyframes wheelDrop   { 0% { transform: translateY(0); opacity:1; } 60% { transform: translateY(8px); opacity:.2; } 100% { transform: translateY(0); opacity:1; } }


/* ---------------------------------------------------------------------
   8. BUTTONS
   --------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.2rem;
  min-height: 44px;
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: var(--radius-2);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--t-fast), box-shadow var(--t-fast),
              background var(--t-fast), color var(--t-fast),
              border-color var(--t-fast);
}
.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: light-dark(#0b1220, #0b1220);
  box-shadow: 0 6px 18px var(--accent-glow);
}
.btn--primary:hover { box-shadow: 0 10px 28px var(--accent-glow); }

.btn--ghost {
  background: var(--bg-card);
  color: var(--ink-1);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn--outline {
  background: transparent;
  color: var(--ink-1);
  border-color: var(--line-strong);
}
.btn--outline:hover { background: var(--bg-card); border-color: var(--accent); color: var(--accent); }


/* ---------------------------------------------------------------------
   9. METRICS RIBBON
   --------------------------------------------------------------------- */
.metrics {
  padding-block: clamp(2rem, 1.5rem + 3vw, 4rem);
  border-block: 1px solid var(--line);
  background: var(--bg-card);
}
.metrics__eyebrow {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
  margin-bottom: var(--sp-5);
}
.metrics__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--sp-5);
}
.metrics__grid--three {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  max-width: 980px;
  margin-inline: auto;
}
.metric {
  text-align: center;
  position: relative;
  padding: var(--sp-4) var(--sp-3);
}
.metric + .metric::before {
  content: ""; position: absolute; left: 0; top: 20%; bottom: 20%;
  width: 1px; background: var(--line);
}
.metric__num {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  display: inline-block;
}
.metric__num--text { font-style: normal; }
.metric__plus {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--accent);
  margin-left: 0.1em;
}
.metric__lab {
  margin-top: 0.4rem;
  font-size: var(--fs-xs);
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}
.metric__ctx {
  margin-top: 0.45rem;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  line-height: 1.45;
  max-width: 28ch;
  margin-inline: auto;
}
.metric__ctx code { background: transparent; border: 0; padding: 0; color: var(--accent); font-size: 0.92em; }


/* ---------------------------------------------------------------------
   10. ABOUT
   --------------------------------------------------------------------- */
.about { max-width: 72ch; }
.about__lead { font-size: var(--fs-md); color: var(--ink-1); margin-bottom: var(--sp-4); }
.about__lead strong { color: var(--accent); }
.about__body { font-size: var(--fs-base); color: var(--ink-2); }


/* ---------------------------------------------------------------------
   11. CAPABILITY PILLARS — container query, 3D tilt
   --------------------------------------------------------------------- */
.pillars-wrap { container-type: inline-size; container-name: pillars; }
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-4);
  perspective: 1200px;
}
@container pillars (min-width: 900px) {
  .pillars { grid-template-columns: repeat(2, 1fr); }
}
@container pillars (min-width: 1200px) {
  .pillars { grid-template-columns: repeat(4, 1fr); }
}

.pillar {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: var(--sp-6) var(--sp-5) var(--sp-5);
  overflow: hidden;
  transform-style: preserve-3d;
  transform:
    rotateX(calc(var(--my, 0) * 6deg))
    rotateY(calc(var(--mx, 0) * -6deg))
    translateZ(0);
  transition:
    transform var(--t-medium),
    box-shadow var(--t-medium),
    border-color var(--t-medium);
}
.pillar::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(
      circle at calc(50% + var(--mx, 0) * 50%) calc(50% + var(--my, 0) * 50%),
      var(--accent-glow) 0%,
      transparent 55%);
  opacity: 0;
  transition: opacity var(--t-medium);
  pointer-events: none;
}
.pillar:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.pillar:hover::before { opacity: 1; }
.pillar__num {
  position: absolute;
  top: var(--sp-3); right: var(--sp-4);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  opacity: 0.7;
}
.pillar__icon {
  width: 44px; height: 44px;
  display: inline-grid; place-items: center;
  background: var(--bg-alt);
  border-radius: var(--radius-2);
  margin-bottom: var(--sp-3);
  color: var(--accent);
  border: 1px solid var(--line);
}
.pillar h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--ink-1);
  margin-bottom: var(--sp-2);
  letter-spacing: -0.01em;
}
.pillar p {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  line-height: 1.65;
}
.pillar p + p { margin-top: var(--sp-3); }
.pillar__stack {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.02em;
  color: var(--ink-3);
  padding-top: var(--sp-3);
  border-top: 1px dashed var(--line);
  margin-top: var(--sp-4);
}
.pillar__stack strong { color: var(--accent); margin-right: 0.4em; }


/* ---------------------------------------------------------------------
   12. STACK INVENTORY (collapsed)
   --------------------------------------------------------------------- */
.stack {
  margin-top: var(--sp-6);
  border-top: 1px solid var(--line);
  padding-top: var(--sp-5);
}
.stack > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--accent);
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}
.stack > summary::-webkit-details-marker { display: none; }
.stack > summary:hover { border-color: var(--accent); transform: translateY(-1px); }
.stack__chev { transition: transform var(--t-medium); }
.stack[open] > summary .stack__chev { transform: rotate(180deg); }
.stack[open] > summary .stack__open  { display: none; }
.stack:not([open]) > summary .stack__close { display: none; }
.stack__grid {
  margin-top: var(--sp-5);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-4);
}
.stack__group {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: var(--sp-4);
}
.stack__group h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--ink-1);
  margin-bottom: 0.4rem;
}
.stack__group p {
  font-size: var(--fs-xs);
  color: var(--ink-2);
  line-height: 1.6;
}


/* ---------------------------------------------------------------------
   13. MARQUEE — auto-scrolling tech ribbon
   --------------------------------------------------------------------- */
.marquee {
  margin-top: var(--sp-6);
  border-block: 1px solid var(--line);
  padding-block: var(--sp-3);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: inline-flex;
  gap: var(--sp-5);
  white-space: nowrap;
  animation: scrollX 38s linear infinite;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.marquee__track span { display: inline-flex; align-items: center; gap: 0.55rem; }
.marquee__track span::before {
  content: "◆"; color: var(--accent); font-size: 0.7em;
}
@keyframes scrollX {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}


/* ---------------------------------------------------------------------
   14. EXPERIENCE TIMELINE
   --------------------------------------------------------------------- */
.timeline { display: flex; flex-direction: column; gap: var(--sp-6); margin-bottom: var(--sp-5); }
.job {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: var(--sp-4);
  position: relative;
}
.job__rail { position: relative; display: flex; justify-content: center; }
.job__rail::after {
  content: "";
  position: absolute;
  top: 18px; bottom: -32px;
  left: 50%; transform: translateX(-50%);
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--line) 50%);
}
.job:last-child .job__rail::after { display: none; }
.job__dot {
  position: relative; z-index: 1;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  margin-top: 6px;
  box-shadow: 0 0 0 4px var(--accent-glow);
}
.job__body {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: var(--sp-5);
  transition: border-color var(--t-medium), box-shadow var(--t-medium);
}
.job__body:hover { border-color: var(--accent); box-shadow: var(--shadow-2); }
.job__head {
  display: flex; flex-wrap: wrap;
  justify-content: space-between; align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px dashed var(--line);
}
.job__role {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--ink-1);
  letter-spacing: -0.01em;
}
.job__company { font-size: var(--fs-sm); color: var(--ink-2); margin-top: 2px; }
.job__dates {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--ink-2);
  white-space: nowrap;
  padding: 0.3rem 0.7rem;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
}
.job__dates--now {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: linear-gradient(135deg, var(--accent-glow), transparent 80%), var(--bg-card);
  border-color: var(--accent);
  color: var(--accent);
}
.job__dates-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  animation: pulseDot 2s ease-in-out infinite;
}

.job__feature {
  margin-bottom: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--accent);
  border-left-width: 3px;
  border-radius: var(--radius-2);
  background:
    linear-gradient(135deg, var(--accent-glow), transparent 55%),
    var(--bg-alt);
}
.job__feature-eyebrow {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}
.job__feature-title {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--ink-1);
  letter-spacing: -0.01em;
  margin-bottom: var(--sp-2);
}
.job__feature p { font-size: var(--fs-sm); color: var(--ink-2); line-height: 1.65; }
.job__feature-meta {
  display: flex; flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-5);
  margin-top: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px dashed var(--line);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  color: var(--ink-3);
}
.job__feature-meta strong { color: var(--accent); margin-right: 0.4em; }

.job__bullets { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.7rem; }
.job__bullets li {
  position: relative;
  padding-left: 1.4rem;
  font-size: var(--fs-sm);
  color: var(--ink-2);
  line-height: 1.65;
}
.job__bullets li::before {
  content: "▸"; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 700;
}
.job__bullets li strong { color: var(--ink-1); }
.job__early {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  padding: var(--sp-4) var(--sp-5);
  border-left: 3px solid var(--accent);
  background: var(--bg-alt);
  border-radius: 0 var(--radius-2) var(--radius-2) 0;
}
@media (max-width: 540px) {
  .job { grid-template-columns: 24px 1fr; gap: var(--sp-3); }
  .job__body { padding: var(--sp-4); }
}


/* ---------------------------------------------------------------------
   15. PROJECTS GRID
   --------------------------------------------------------------------- */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-4);
}
.project {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: var(--sp-5);
  transition: transform var(--t-medium), border-color var(--t-medium), box-shadow var(--t-medium);
  position: relative; overflow: hidden;
}
.project:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.project__tag {
  display: inline-block;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--sp-3);
}
.project h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--ink-1);
  margin-bottom: var(--sp-2);
  letter-spacing: -0.01em;
}
.project p { font-size: var(--fs-sm); color: var(--ink-2); line-height: 1.6; }


/* ---------------------------------------------------------------------
   16. EDUCATION + LANGUAGES + CERTS
   --------------------------------------------------------------------- */
.plain-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--sp-3); }
.plain-list li {
  display: flex; flex-direction: column; gap: 2px;
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-2) var(--radius-2) 0;
  font-size: var(--fs-sm);
}
.plain-list li strong { color: var(--ink-1); font-weight: 700; }
.plain-list li span   { color: var(--ink-2); font-size: var(--fs-xs); }

.lang-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.lang {
  display: inline-flex; flex-direction: column;
  padding: 0.55rem 0.95rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  font-size: var(--fs-xs);
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.lang:hover { border-color: var(--accent); transform: translateY(-1px); }
.lang strong { color: var(--ink-1); font-size: var(--fs-sm); }
.lang span   { color: var(--ink-3); font-size: var(--fs-xs); }


/* ---------------------------------------------------------------------
   17. CONTACT
   --------------------------------------------------------------------- */
.contact { text-align: center; max-width: 60ch; margin-inline: auto; }
.contact .section__eyebrow { justify-content: center; }
.contact__buttons {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}


/* ---------------------------------------------------------------------
   18. FOOTER
   --------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--line);
  padding-block: var(--sp-5);
  background: var(--bg-alt);
}
.footer__inner {
  display: flex; flex-direction: column;
  align-items: center; gap: 0.3rem;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  text-align: center;
}
.footer__sub { color: var(--ink-3); opacity: 0.85; }


/* ---------------------------------------------------------------------
   19. REVEAL — JS adds .is-revealed; modern browsers also use scroll-
       driven animation as a progressive enhancement.
   --------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
[data-reveal].is-revealed { opacity: 1; transform: translateY(0); }

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    /* Only run the scroll-driven anim BEFORE the IO observer has marked
       the element revealed. Once .is-revealed is on, we kill the
       animation so animation-fill-mode:both can't pin the element back
       to opacity:0 when the section sits outside its scroll-progress
       range (deep-link, scroll-up after view, full-page render). */
    [data-reveal]:not(.is-revealed) {
      animation: revealUp linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 30%;
    }
    [data-reveal].is-revealed { animation: none; }
    @keyframes revealUp {
      from { opacity: 0; transform: translateY(28px); }
      to   { opacity: 1; transform: translateY(0); }
    }
  }
}


/* ---------------------------------------------------------------------
   20. PRINT
   --------------------------------------------------------------------- */
@media print {
  .nav, .icon-btn, .bg-mesh, .hero__cta, .hero__scroll, .hero__socials,
  .progress, .marquee, .menu-sheet, .theme-pop,
  .contact__buttons, .footer { display: none !important; }
  body { background: #fff; color: #000; }
  .section, .hero { padding-block: 1.5rem; }
  a { color: #000; text-decoration: underline; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}


/* ---------------------------------------------------------------------
   21. REDUCED MOTION + small-screen tweaks
   --------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .bg-mesh { display: none; }
  .pillar { transform: none !important; }
  .marquee__track { animation: none; }
  .progress__bar { transition: none; }
}

@media (max-width: 540px) {
  .hero__title { font-size: var(--fs-sm); }
  .hero__voice { font-size: var(--fs-base); }
  .nav__inner { gap: 0.5rem; }
  .metric + .metric::before { display: none; }
  .job__feature { padding: var(--sp-3) var(--sp-4); }
}


/* =====================================================================
   22.  POLISH PACK — Tier 1, 2, 3
   =====================================================================
   Everything below is additive: existing layout untouched, just enhanced.
   ===================================================================== */


/* --- 22.1 Cursor-aware spotlight on hero ---------------------------- */
/* JS sets --sx and --sy in % so the radial follows the pointer. */
.hero { isolation: isolate; }
.hero::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    circle 480px at var(--sx, 50%) var(--sy, 30%),
    color-mix(in oklch, var(--accent) 22%, transparent) 0%,
    transparent 70%);
  opacity: 0;
  transition: opacity var(--t-medium);
}
.hero:hover::after { opacity: 1; }
.hero__inner { position: relative; z-index: 1; }
@media (prefers-reduced-motion: reduce), (hover: none) {
  .hero::after { display: none; }
}


/* --- 22.2 Magnetic buttons + social icons --------------------------- */
/* JS sets --magx / --magy in px (capped). CSS does the transform. */
.btn, .hero__social {
  /* Compose with existing hover translate */
  transform: translate(var(--magx, 0), var(--magy, 0));
  will-change: transform;
}
.btn:hover  { transform: translate(var(--magx, 0), calc(var(--magy, 0) - 2px)); }
.hero__social:hover { transform: translate(var(--magx, 0), calc(var(--magy, 0) - 2px)); }


/* --- 22.3 Bento projects grid --------------------------------------- */
.projects {
  /* Mobile = stack; >=820 = bento with 1 large, 3 small */
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;
}
@media (min-width: 820px) {
  .projects {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 1fr 1fr;
    grid-template-areas:
      "feature feature small1"
      "feature feature small2"
      "small3  small3  small4";
    gap: var(--sp-4);
  }
  .project:nth-child(1) { grid-area: feature; }
  .project:nth-child(2) { grid-area: small1;  }
  .project:nth-child(3) { grid-area: small2;  }
  .project:nth-child(4) { grid-area: small3;  }
}
.project:nth-child(1) {
  /* The hero tile gets a stronger, accent-tinted background */
  background:
    linear-gradient(135deg, var(--accent-glow), transparent 55%),
    var(--bg-card);
  border-color: var(--accent);
  display: flex; flex-direction: column;
}
.project:nth-child(1) h3 { font-size: var(--fs-lg); }
.project:nth-child(1) p  { font-size: var(--fs-base); }


/* --- 22.4 Sticky section index in left rail ------------------------- */
/* Floating, pill-shaped index visible on >=1100px screens only.       */
.rail-index {
  position: fixed;
  top: 50%;
  left: max(1rem, calc(50% - var(--container-max) / 2 - 64px));
  transform: translateY(-50%);
  z-index: 40;
  display: none;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.65rem 0.55rem;
  background: var(--bg-glass);
  /* Dropped backdrop-filter on the rail entirely — it sits over the empty
     mesh background so the blur was barely visible while costing a paint
     pass on every scroll frame. Solid --bg-glass looks identical. */
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-2);
}
@media (min-width: 1180px) { .rail-index { display: flex; } }
.rail-index a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 10px;
  font-weight: 700;
  color: var(--ink-3);
  background: transparent;
  border: 1px solid transparent;
  transition: color var(--t-fast), background var(--t-fast),
              border-color var(--t-fast), transform var(--t-fast);
  position: relative;
}
.rail-index a:hover { color: var(--ink-1); transform: translateX(2px); }
.rail-index a.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-wash);
}
/* Hover label: the section name slides out next to the dot */
.rail-index a::after {
  content: attr(data-label);
  position: absolute; left: 36px; top: 50%; transform: translateY(-50%);
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-xs);
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-1);
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-fast), transform var(--t-fast);
}
.rail-index a:hover::after { opacity: 1; transform: translateY(-50%) translateX(4px); }


/* --- 22.5 Hero status ribbon ---------------------------------------- */
.hero__status {
  display: inline-flex; flex-wrap: wrap; justify-content: center;
  gap: 0.55rem 0.85rem;
  margin-top: 0.6rem;
  padding: 0.45rem 0.95rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  background: var(--bg-card);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-pill);
  max-width: min(100%, 60ch);
}
.hero__status span { display: inline-flex; align-items: center; gap: 0.35rem; }
.hero__status strong { color: var(--accent); font-weight: 700; }
.hero__status .dot {
  width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
}


/* --- 22.6 Word-by-word stagger on section headings ------------------ */
/* Each word becomes its own span; the .is-revealed class on the parent
   triggers the animation so timing is consistent regardless of when
   the heading first hits the viewport. */
.stagger > span {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  transition: opacity var(--t-slow) cubic-bezier(.16,1,.3,1),
              transform var(--t-slow) cubic-bezier(.16,1,.3,1);
  transition-delay: calc(var(--i, 0) * 40ms);
}
.stagger.is-revealed > span,
.stagger.in-view > span {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .stagger > span { opacity: 1; transform: none; transition: none; }
}


/* --- 22.7 Hero scroll-snap stop ------------------------------------- */
@media (prefers-reduced-motion: no-preference) and (min-width: 820px) {
  html { scroll-snap-type: y proximity; }
  .hero { scroll-snap-align: start; scroll-snap-stop: normal; }
}


/* --- 22.8 Variable-font breathing on the hero name ------------------ */
@media (prefers-reduced-motion: no-preference) {
  .hero__name {
    /* Inter weight 800↔900 over 6s. Only animates if the var-font axis is honored. */
    animation: nameBreathe 6s ease-in-out infinite;
  }
  @keyframes nameBreathe {
    0%, 100% { font-weight: 800; }
    50%      { font-weight: 900; }
  }
}


/* --- 22.9 Pillar glare sweep --------------------------------------- */
.pillar { position: relative; }
.pillar::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(115deg,
    transparent 25%,
    rgba(255,255,255,0.10) 45%,
    rgba(255,255,255,0.18) 50%,
    rgba(255,255,255,0.10) 55%,
    transparent 75%);
  transform: translateX(-110%);
  transition: transform 800ms cubic-bezier(.16,1,.3,1);
  pointer-events: none;
  border-radius: inherit;
  mix-blend-mode: overlay;
}
.pillar:hover::after { transform: translateX(110%); }
@media (prefers-reduced-motion: reduce) { .pillar::after { display: none; } }


/* --- 22.10 GitHub-style incident heatmap (v3 — dashboard) ----------- */
.heatmap {
  margin-top: var(--sp-5);
  padding: var(--sp-4) var(--sp-5);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  position: relative;
  overflow: hidden;
}
/* Subtle accent line on the top edge — frames the dashboard */
.heatmap::before {
  content: '';
  position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg,
    transparent,
    color-mix(in oklch, var(--accent) 60%, transparent),
    transparent);
  opacity: 0.55;
}

.heatmap__head {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.heatmap__head strong { color: var(--ink-1); }
.heatmap__sub { color: color-mix(in oklch, var(--ink-2) 80%, var(--accent) 20%); }

/* ----- Stat chips row ----- */
.heatmap__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}
.heatmap__chip {
  display: flex; flex-direction: column; gap: 2px;
  padding: 0.55rem 0.75rem;
  background: color-mix(in oklch, var(--bg-alt) 88%, var(--accent) 12%);
  border: 1px solid var(--line);
  border-radius: var(--radius-1);
  position: relative;
  overflow: hidden;
  transition: border-color var(--t-fast), transform var(--t-fast), background var(--t-fast);
}
.heatmap__chip::after {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--accent);
  opacity: 0.35;
  transition: opacity var(--t-fast), width var(--t-fast);
}
.heatmap__chip:hover {
  border-color: color-mix(in oklch, var(--accent) 50%, var(--line));
  transform: translateY(-1px);
}
.heatmap__chip:hover::after { opacity: 0.85; width: 3px; }
.heatmap__chip-k {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.heatmap__chip-v {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink-1);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.heatmap__chip-t {
  font-size: 0.68rem;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* ----- Storm markers strip ----- */
.heatmap__storms {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  gap: 3px;
  height: 8px;
  margin-left: 28px; /* aligns with grid (offset for day-labels column) */
  margin-bottom: 4px;
}
.heatmap__storm {
  height: 8px;
  border-radius: 2px;
  background: transparent;
  position: relative;
}
.heatmap__storm[data-storm="1"] {
  background: color-mix(in oklch, var(--accent) 80%, transparent);
  box-shadow: 0 0 6px color-mix(in oklch, var(--accent) 70%, transparent);
}
.heatmap__storm[data-storm="1"]::after {
  content: '';
  position: absolute; left: 50%; top: -3px;
  width: 4px; height: 4px;
  background: var(--accent);
  border-radius: 50%;
  transform: translateX(-50%);
}

/* ----- Body = day labels + grid + months ----- */
.heatmap__body {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 4px;
  align-items: start;
}
.heatmap__days {
  display: grid;
  grid-template-rows: repeat(7, 10px);
  gap: 3px;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
.heatmap__days span {
  display: flex; align-items: center;
  height: 10px;
  line-height: 1;
}
.heatmap__grid-wrap {
  display: flex; flex-direction: column; gap: 4px;
  min-width: 0;
}
.heatmap__grid {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  grid-auto-rows: 10px;
  gap: 3px;
}
.heatmap__cell {
  width: 100%; height: 10px;
  border-radius: 2px;
  background-color: var(--bg-alt);
  border: 1px solid var(--line);
  transition: transform var(--t-fast), filter var(--t-fast), outline-color var(--t-fast);
  outline: 1px solid transparent;
}
.heatmap__cell:hover {
  transform: scale(1.45);
  outline-color: color-mix(in srgb, var(--accent) 70%, transparent);
  z-index: 2;
  filter: brightness(1.15);
}
/* Using srgb instead of oklch — oklch color-mix occasionally fails to
   paint on grid items in Chromium (returns transparent computed value). */
.heatmap__cell[data-level="1"] { background-color: color-mix(in srgb, var(--accent) 28%, var(--bg-alt)); border-color: transparent; }
.heatmap__cell[data-level="2"] { background-color: color-mix(in srgb, var(--accent) 52%, var(--bg-alt)); border-color: transparent; }
.heatmap__cell[data-level="3"] { background-color: color-mix(in srgb, var(--accent) 78%, var(--bg-alt)); border-color: transparent; }
.heatmap__cell[data-level="4"] {
  background-color: var(--accent);
  border-color: transparent;
  box-shadow: 0 0 6px color-mix(in srgb, var(--accent) 55%, transparent);
}

.heatmap__months {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 2px;
}
.heatmap__month {
  text-align: left;
  padding-left: 1px;
  white-space: nowrap;
  overflow: hidden;
}

/* ----- Footer (legend + key facts) ----- */
.heatmap__footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px dashed color-mix(in oklch, var(--line) 80%, var(--accent) 20%);
}
.heatmap__legend {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  color: var(--ink-3);
  margin: 0;
}
.heatmap__legend i {
  width: 10px; height: 10px; border-radius: 2px;
  display: inline-block;
  background: var(--accent-wash);
  border: 1px solid color-mix(in oklch, var(--accent) 30%, var(--line));
}
.heatmap__legend i:first-of-type { background-color: var(--bg-alt); border-color: var(--line); }
.heatmap__legend i:nth-of-type(2) { background-color: color-mix(in srgb, var(--accent) 28%, var(--bg-alt)); }
.heatmap__legend i:nth-of-type(3) { background-color: color-mix(in srgb, var(--accent) 52%, var(--bg-alt)); }
.heatmap__legend i:nth-of-type(4) { background-color: color-mix(in srgb, var(--accent) 78%, var(--bg-alt)); }
.heatmap__legend i:nth-of-type(5) { background-color: var(--accent); border-color: transparent; }

.heatmap__keys {
  display: inline-flex; flex-wrap: wrap; gap: 0.6rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 0.66rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  margin: 0;
  text-transform: uppercase;
}
.heatmap__key { white-space: nowrap; }
.heatmap__key + .heatmap__key { padding-left: 0.6rem; border-left: 1px solid var(--line); }

@media (max-width: 700px) {
  /* Cells are explicitly placed at columns 1-52 by JS, so we can't reduce
     the column count — instead keep the full year and let it scroll
     horizontally (same pattern GitHub uses on mobile). */
  .heatmap__grid-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .heatmap__grid,
  .heatmap__storms,
  .heatmap__months { min-width: 540px; }
  .heatmap__chip-v { font-size: 0.95rem; }
  .heatmap__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  .heatmap__cell:hover { transform: none; filter: none; }
  .heatmap__chip:hover { transform: none; }
}


/* --- 22.11 Cursor label chip --------------------------------------- */
.cursor-label {
  position: fixed;
  top: 0; left: 0;
  z-index: 80;
  padding: 0.35rem 0.75rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--ink-1);
  background: var(--bg-card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-2);
  pointer-events: none;
  opacity: 0;
  transform: translate(var(--cx, 0), var(--cy, 0)) translate(14px, 14px);
  transition: opacity var(--t-fast);
  white-space: nowrap;
}
.cursor-label.is-visible { opacity: 1; }
@media (hover: none), (prefers-reduced-motion: reduce) {
  .cursor-label { display: none; }
}


/* --- 22.12 Custom view-transition names ----------------------------- */
@supports (view-transition-name: hero) {
  .hero__name        { view-transition-name: hero-name; }
  .pillar:nth-child(1) { view-transition-name: pillar-1; }
  .pillar:nth-child(2) { view-transition-name: pillar-2; }
  .pillar:nth-child(3) { view-transition-name: pillar-3; }
  .pillar:nth-child(4) { view-transition-name: pillar-4; }
  ::view-transition-group(hero-name),
  ::view-transition-group(pillar-1),
  ::view-transition-group(pillar-2),
  ::view-transition-group(pillar-3),
  ::view-transition-group(pillar-4) {
    animation-duration: 360ms;
    animation-timing-function: cubic-bezier(.16,1,.3,1);
  }
}


/* --- 22.13 Animated EKS pod-cluster SVG ----------------------------- */
.cluster {
  display: grid; place-items: center;
  margin-top: var(--sp-5);
  padding: var(--sp-5);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  position: relative; overflow: hidden;
}
.cluster__caption {
  position: absolute;
  bottom: var(--sp-3); left: var(--sp-4);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.cluster svg { width: 100%; max-width: 480px; height: auto; }
.cluster .pod {
  fill: var(--bg-alt);
  stroke: var(--accent);
  stroke-width: 1.5;
  transform-origin: center;
  transform-box: fill-box;
  animation: podPulse 4s ease-in-out infinite;
}
.cluster .pod:nth-child(2) { animation-delay: 0.3s;  }
.cluster .pod:nth-child(3) { animation-delay: 0.6s;  }
.cluster .pod:nth-child(4) { animation-delay: 0.9s;  }
.cluster .pod:nth-child(5) { animation-delay: 1.2s;  }
.cluster .pod:nth-child(6) { animation-delay: 1.5s;  }
.cluster .pod:nth-child(7) { animation-delay: 1.8s;  }
.cluster .link {
  stroke: var(--accent-soft);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  opacity: 0.55;
  animation: linkDash 6s linear infinite;
}
.cluster .control {
  fill: var(--accent);
  stroke: var(--accent);
  filter: drop-shadow(0 0 6px var(--accent-glow));
}
@keyframes podPulse {
  0%, 100% { transform: scale(1);    opacity: 1;   }
  50%      { transform: scale(1.08); opacity: 0.85;}
}
@keyframes linkDash {
  to { stroke-dashoffset: -64; }
}
@media (prefers-reduced-motion: reduce) {
  .cluster .pod, .cluster .link { animation: none; }
}


/* --- 22.14 RCA modal popover --------------------------------------- */
.job__feature-cta {
  display: inline-flex; align-items: center; gap: 0.4rem;
  margin-top: var(--sp-3);
  padding: 0.45rem 0.85rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.job__feature-cta:hover { background: var(--accent); color: light-dark(#0b1220, #0b1220); }

.rca-modal {
  margin: auto;
  padding: 0;
  max-width: min(720px, calc(100vw - 2rem));
  width: 100%;
  border: 1px solid var(--accent);
  border-radius: var(--radius-3);
  background: var(--bg-card);
  color: var(--ink-1);
  box-shadow: 0 30px 90px rgba(0,0,0,0.45);
}
.rca-modal:popover-open {
  animation: popIn 220ms cubic-bezier(.16,1,.3,1);
}
.rca-modal__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--line);
}
.rca-modal__title {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--ink-1);
  letter-spacing: 0.02em;
}
.rca-modal__title strong { color: var(--accent); }
.rca-modal__body {
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
}
.rca-modal__code {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: var(--sp-3) var(--sp-4);
  overflow-x: auto;
  white-space: pre;
  color: var(--ink-1);
}
.rca-modal__code .k { color: var(--accent);      font-weight: 700; }
.rca-modal__code .e { color: #ef4444;            font-weight: 600; }
.rca-modal__code .c { color: var(--ink-3);       font-style: italic; }
.rca-modal__code .s { color: color-mix(in oklch, var(--accent-soft) 80%, var(--ink-1)); }
.rca-modal::backdrop {
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(4px);
}


/* --- 22.15 Konami-code easter egg toast ----------------------------- */
.toast {
  position: fixed;
  bottom: 1.25rem; left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 90;
  padding: 0.65rem 1.1rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-sm);
  color: var(--ink-1);
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-glow);
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-medium), transform var(--t-medium);
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* =====================================================================
   23. v2 POLISH PACK (everything below is the May-2026 expansion)
   Each block is numbered to match the user's master list (1–59).
   ===================================================================== */

/* --- 23.1 Drifting conic + radial mesh --------------------------------
   Animates two custom-property hues so the gradient slowly recolours.
   Backed by registered @property colors so they tween rather than snap. */
@property --aurora-a { syntax: '<color>'; inherits: false; initial-value: #1d4ed8; }
@property --aurora-b { syntax: '<color>'; inherits: false; initial-value: #14532d; }
@property --aurora-rot { syntax: '<angle>'; inherits: false; initial-value: 0deg; }

.bg-aurora {
  position: fixed; inset: -10vmax; z-index: -3;
  pointer-events: none;
  background:
    conic-gradient(from var(--aurora-rot) at 30% 30%,
      color-mix(in oklch, var(--aurora-a) 55%, transparent),
      transparent 35%,
      color-mix(in oklch, var(--aurora-b) 55%, transparent),
      transparent 70%,
      color-mix(in oklch, var(--aurora-a) 55%, transparent)),
    radial-gradient(60% 50% at 70% 30%,
      color-mix(in oklch, var(--accent) 25%, transparent), transparent 70%),
    radial-gradient(50% 40% at 20% 80%,
      color-mix(in oklch, var(--aurora-b) 35%, transparent), transparent 70%);
  filter: blur(60px) saturate(1.2);
  opacity: 0.55;
  animation: auroraDrift 60s linear infinite;
}
@keyframes auroraDrift {
  0%   { --aurora-rot: 0deg; }
  100% { --aurora-rot: 360deg; }
}
:root[data-theme-mode='light'] .bg-aurora { opacity: 0.28; }

/* --- 23.4 Light-leak streaks ----------------------------------------- */
.bg-leaks {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  overflow: hidden;
}
.bg-leaks span {
  position: absolute;
  width: 80vw; height: 30vh;
  background: linear-gradient(120deg,
    transparent 30%,
    color-mix(in oklch, var(--accent) 18%, transparent) 50%,
    transparent 70%);
  filter: blur(40px);
  mix-blend-mode: screen;
}
.bg-leaks__a { top: -10vh; left: -20vw; transform: rotate(15deg); animation: leakA 22s ease-in-out infinite alternate; }
.bg-leaks__b { bottom: -10vh; right: -20vw; transform: rotate(-12deg); animation: leakB 28s ease-in-out infinite alternate; }
@keyframes leakA { from { transform: rotate(15deg) translate(0,0); }   to { transform: rotate(20deg) translate(8vw, 4vh); } }
@keyframes leakB { from { transform: rotate(-12deg) translate(0,0); } to { transform: rotate(-8deg)  translate(-6vw, -4vh); } }

/* --- 23.3 Film-grain ------------------------------------------------ */
.bg-grain {
  position: fixed; inset: 0; z-index: 1;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.6'/></svg>");
  background-size: 160px 160px;
}
:root[data-theme-mode='light'] .bg-grain { opacity: 0.06; mix-blend-mode: multiply; }

/* --- 23.6 Custom selection + 23.7 scrollbars ------------------------- */
::selection {
  background: color-mix(in oklch, var(--accent) 32%, transparent);
  color: var(--ink-1);
}
:root {
  scrollbar-color: color-mix(in oklch, var(--accent) 50%, var(--bg)) transparent;
  scrollbar-width: thin;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg,
    color-mix(in oklch, var(--accent) 60%, var(--bg)),
    color-mix(in oklch, var(--accent) 35%, var(--bg)));
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background-color: var(--accent); }
::-webkit-scrollbar-track { background: transparent; }

/* --- 23.5 Section-tinted accent (set by JS as --accent-shift) --------
   Only redefine --accent when --tint is explicitly set on this section by
   JS. Without the [style*="--tint"] gate, `var(--accent-base, var(--accent))`
   self-references through the cascade and resolves to empty, breaking
   every color-mix() that depends on --accent (heatmap cells, etc.). */
.section { transition: background-color var(--t-slow); }
.section[data-tint][style*="--tint"] {
  --accent: color-mix(in oklch,
    var(--accent-base, #4ea876) calc(100% - var(--tint, 0) * 1%),
    var(--tint-toward, #4ea876) calc(var(--tint, 0) * 1%));
}

/* --- 23.18 Hero parallax layers ------------------------------------- */
.hero { position: relative; isolation: isolate; }
.hero__parallax {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
  z-index: -1;
}
.hero__parallax-layer {
  position: absolute; inset: -10%;
  transition: transform 80ms linear;
  will-change: transform;
}
.hero__parallax-layer--back {
  background: radial-gradient(40% 40% at 30% 30%,
    color-mix(in oklch, var(--accent) 30%, transparent), transparent 70%);
  filter: blur(40px);
  transform: translate3d(calc(var(--px, 0) * 8px), calc(var(--py, 0) * 8px), 0);
}
.hero__parallax-layer--mid {
  background: radial-gradient(30% 30% at 70% 60%,
    color-mix(in oklch, var(--accent) 22%, transparent), transparent 70%);
  filter: blur(30px);
  transform: translate3d(calc(var(--px, 0) * -16px), calc(var(--py, 0) * -16px), 0);
}

/* --- 23.10 whoami terminal ------------------------------------------ */
.termline {
  display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 0.5ch;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  background: color-mix(in oklch, var(--bg-card) 80%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: 0.55rem 0.9rem;
  margin: 0.25rem auto 1rem;
  max-width: max-content;
  color: var(--ink-1);
}
.termline__prompt { color: var(--accent); }
.termline__path   { color: var(--ink-3); }
.termline__cmd    { white-space: pre; }
.termline__cursor { color: var(--accent); animation: termBlink 1.06s steps(2) infinite; }
.termline__out    { color: var(--ink-2); margin-left: 0.5rem; }
@keyframes termBlink { 50% { opacity: 0; } }

/* --- 23.59 Generative portrait -------------------------------------- */
.hero__name-row {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.6rem;
}
.genportrait {
  width: 72px; height: 72px; border-radius: 50%;
  border: 1px solid color-mix(in oklch, var(--accent) 60%, var(--line));
  box-shadow: 0 8px 30px -12px color-mix(in oklch, var(--accent) 50%, transparent);
  background: var(--bg-card);
  overflow: hidden;
  display: grid; place-items: center;
  isolation: isolate;
}
.genportrait svg { width: 100%; height: 100%; display: block; }

/* --- 23.8 / 23.9 Hero dash (uptime + SLO) --------------------------- */
.dash {
  margin-top: 1rem;
  width: min(640px, 100%);
  background: color-mix(in oklch, var(--bg-card) 75%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: 0.85rem 1rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: var(--fs-sm);
}
.dash__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.dash__cell { display: flex; flex-direction: column; gap: 0.35rem; }
.dash__lab  { color: var(--ink-3); font-size: 0.78rem; letter-spacing: 0.04em; }
.dash__lab em { color: var(--accent); font-style: normal; }
.dash__val  { color: var(--ink-1); font-weight: 700; font-variant-numeric: tabular-nums; }
.dash__foot {
  margin: 0.7rem 0 0; padding-top: 0.6rem;
  border-top: 1px dashed var(--line);
  color: var(--ink-2); font-size: 0.78rem; text-align: left;
  display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center;
}
.dash__foot .dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--accent) 25%, transparent);
  animation: pulseDot 2.2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { transform: scale(1);   opacity: 1; }
  50%      { transform: scale(0.7); opacity: 0.6; }
}
.slo { display: flex; align-items: center; gap: 0.7rem; }
.slo__bar {
  flex: 1; position: relative; height: 8px;
  background: color-mix(in oklch, var(--ink-3) 25%, transparent);
  border-radius: 999px; overflow: hidden;
}
.slo__fill {
  position: absolute; inset: 0;
  width: var(--slo, 99.94%);
  background: linear-gradient(90deg,
    color-mix(in oklch, var(--accent) 50%, transparent),
    var(--accent));
  transition: width 1.2s cubic-bezier(.16,1,.3,1);
}
.slo__target {
  position: absolute; top: -2px; bottom: -2px;
  left: 99.9%;
  width: 2px;
  background: var(--ink-1);
  opacity: 0.5;
}
.slo__num { color: var(--accent); font-weight: 700; min-width: 4.5ch; text-align: right; }

@media (max-width: 720px) {
  .dash__row { grid-template-columns: 1fr; }
}

/* --- 23.11 Sparkline + 23.20 comparison ------------------------------ */
.exp-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
  margin-bottom: 0.75rem;
}
.sparkline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: var(--fs-sm);
}
.sparkline__lab { color: var(--ink-3); }
.sparkline__num { color: var(--accent); font-weight: 700; }
.sparkline__line {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  animation: sparkDraw 1.6s 0.5s cubic-bezier(.16,1,.3,1) forwards;
}
.sparkline__dot { fill: var(--accent); }
@keyframes sparkDraw { to { stroke-dashoffset: 0; } }

.compare {
  margin: 1.25rem 0 2rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: 1rem 1.1rem;
}
.compare__row {
  display: flex; justify-content: space-between;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: var(--fs-sm);
  margin-bottom: 0.5rem; gap: 1rem; flex-wrap: wrap;
}
.compare__lab--before { color: #ef4444; }
.compare__lab--after  { color: var(--accent); }
.compare__track {
  position: relative; height: 24px; border-radius: 999px;
  background: color-mix(in oklch, var(--ink-3) 18%, transparent);
  overflow: hidden;
  user-select: none;
}
.compare__bar {
  position: absolute; inset: 0; padding: 0;
}
.compare__bar--full { background: linear-gradient(90deg, #ef4444 0%, color-mix(in oklch, #ef4444 50%, var(--accent)) 100%); }
.compare__bar--cut  {
  background: linear-gradient(90deg, var(--accent), color-mix(in oklch, var(--accent) 60%, transparent));
  width: var(--cmp, 50%);
  transition: width 80ms linear;
}
.compare__handle {
  position: absolute; top: 50%; left: var(--cmp, 50%);
  width: 26px; height: 26px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--accent) 25%, transparent);
  cursor: ew-resize; touch-action: none;
}
.compare__note { margin: 0.6rem 0 0; color: var(--ink-3); font-size: 0.85rem; }

/* --- 23.13/14/15 Cluster interactive + chaos + DAG arrows ------------ */
.cluster--interactive { position: relative; }
.cluster--interactive .pod-g { cursor: pointer; outline: none; }
.cluster--interactive .pod-g .pod {
  transition: fill var(--t-fast), transform var(--t-fast), filter var(--t-fast);
  transform-origin: center; transform-box: fill-box;
}
.cluster--interactive .pod-g:hover .pod,
.cluster--interactive .pod-g:focus-visible .pod {
  filter: drop-shadow(0 0 6px var(--accent));
  transform: scale(1.08);
}
.cluster--interactive .pod-g.is-killed .pod {
  fill: #ef4444 !important;
  animation: podShake 0.3s linear;
}
.cluster--interactive .pod-g.is-recovered .pod { fill: var(--accent) !important; }
@keyframes podShake { 25% { transform: translateX(-2px); } 75% { transform: translateX(2px); } }

.pod-lab {
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 9px; fill: var(--ink-3); pointer-events: none;
  font-weight: 600;
}
.pod-lab--ctrl { fill: var(--bg); font-weight: 800; }

.link--flow {
  stroke-dasharray: 4 6;
  animation: flowDash 1.4s linear infinite;
  color: var(--accent);
  stroke: color-mix(in oklch, var(--accent) 60%, transparent);
}
@keyframes flowDash { to { stroke-dashoffset: -20; } }

.cluster__hud {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  margin-top: 0.75rem;
}
.cluster__chaos {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  background: color-mix(in oklch, #ef4444 15%, var(--bg-card));
  border: 1px solid color-mix(in oklch, #ef4444 40%, var(--line));
  color: var(--ink-1);
  border-radius: var(--radius-pill);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: var(--fs-sm);
  cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast);
}
.cluster__chaos:hover { transform: translateY(-1px); background: color-mix(in oklch, #ef4444 25%, var(--bg-card)); }
.cluster__chaos-icon { color: #ef4444; }

.cluster__tip {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: 0.55rem 0.75rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.78rem;
  color: var(--ink-1);
  pointer-events: none;
  opacity: 0; transition: opacity var(--t-fast);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  z-index: 5;
}
.cluster__tip.is-visible { opacity: 1; }
.cluster__tip kbd, .cluster__tip code { color: var(--accent); }

/* --- 23.16 Sticky-stack project cards -------------------------------- */
.projects { display: flex; flex-direction: column; gap: var(--sp-4); }
@media (min-width: 880px) and (prefers-reduced-motion: no-preference) {
  .projects { gap: 0; }
  .projects .project {
    position: sticky; top: calc(var(--nav-h, 64px) + 24px);
    margin-bottom: 24px;
    backdrop-filter: blur(12px);
    background: color-mix(in oklch, var(--bg-card) 92%, transparent);
  }
  .projects .project:nth-child(1) { z-index: 4; top: calc(var(--nav-h, 64px) + 24px); }
  .projects .project:nth-child(2) { z-index: 5; top: calc(var(--nav-h, 64px) + 36px); }
  .projects .project:nth-child(3) { z-index: 6; top: calc(var(--nav-h, 64px) + 48px); }
  .projects .project:nth-child(4) { z-index: 7; top: calc(var(--nav-h, 64px) + 60px); }
}

/* --- 23.17 Horizontal-scroll timeline (desktop) --------------------- */
@media (min-width: 1100px) and (prefers-reduced-motion: no-preference) {
  #experience .timeline {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(540px, 1fr);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 1.25rem;
    padding-bottom: 1rem;
    scrollbar-width: thin;
  }
  #experience .timeline .job { scroll-snap-align: start; }
}

/* --- 23.19 Per-section progress bar --------------------------------- */
.section, .hero { position: relative; }
.section::after, .hero::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform-origin: left;
  transform: scaleX(var(--sec-progress, 0));
  opacity: 0.6;
}
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .section::after, .hero::after {
      animation: secFill linear both;
      animation-timeline: view();
      animation-range: entry 0% exit 100%;
    }
    @keyframes secFill {
      from { transform: scaleX(0); }
      to   { transform: scaleX(1); }
    }
  }
}

/* --- 23.21 Cursor-reveal mask --------------------------------------- */
.contact .section__lead {
  position: relative;
  --cx: 50%; --cy: 50%;
}
.contact .section__lead::after {
  content: 'thanks for reading · let\'s talk infra';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  color: var(--accent); font-size: 0.95em;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(120px 120px at var(--cx) var(--cy), black 30%, transparent 70%);
          mask-image: radial-gradient(120px 120px at var(--cx) var(--cy), black 30%, transparent 70%);
  opacity: 0; transition: opacity var(--t-fast);
}
.contact .section__lead:hover::after { opacity: 1; }

/* --- 23.27 Command palette ------------------------------------------ */
.cmdk[open] {
  position: fixed; top: 18vh; left: 50%; transform: translateX(-50%);
  width: min(560px, 92vw);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-3);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.55);
  padding: 0;
  color: var(--ink-1);
  z-index: 100;
  animation: cmdkIn 220ms cubic-bezier(.16,1,.3,1) both;
}
.cmdk::backdrop { background: rgba(0,0,0,0.55); backdrop-filter: blur(6px); }
@keyframes cmdkIn { from { opacity: 0; transform: translate(-50%, -8px) scale(0.97); } to { opacity: 1; } }
.cmdk__form {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1rem; border-bottom: 1px solid var(--line);
}
.cmdk__input {
  flex: 1; background: transparent; border: 0; outline: none;
  color: var(--ink-1); font-size: 1.05rem; font-family: inherit;
}
.cmdk__input::placeholder { color: var(--ink-3); }
.cmdk__close {
  background: var(--bg); color: var(--ink-2);
  border: 1px solid var(--line); border-radius: var(--radius-1);
  padding: 0.2rem 0.55rem; font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.78rem;
  cursor: pointer;
}
.cmdk__list {
  list-style: none; margin: 0; padding: 0.5rem 0;
  max-height: 340px; overflow: auto;
}
.cmdk__list li {
  padding: 0.55rem 1rem;
  display: flex; gap: 0.75rem; align-items: center;
  cursor: pointer;
  border-left: 2px solid transparent;
}
.cmdk__list li[aria-selected='true'] {
  background: color-mix(in oklch, var(--accent) 12%, transparent);
  border-left-color: var(--accent);
}
.cmdk__list .cmdk__hint { margin-left: auto; color: var(--ink-3); font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.78rem; }
.cmdk__foot {
  border-top: 1px solid var(--line);
  padding: 0.45rem 1rem;
  display: flex; gap: 1rem; flex-wrap: wrap;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.74rem; color: var(--ink-3);
}
.cmdk__foot kbd { display: inline-block; padding: 0 0.35rem; border: 1px solid var(--line); border-radius: 4px; margin-right: 0.2rem; }

/* --- 23.28 Keyboard help ------------------------------------------- */
.kbd-help[open] {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(440px, 92vw);
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-3); padding: 1rem 1.25rem;
  box-shadow: var(--shadow-md);
  color: var(--ink-1); z-index: 100;
}
.kbd-help::backdrop { background: rgba(0,0,0,0.55); }
.kbd-help__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.6rem; }
.kbd-help__head h3 { margin: 0; font-size: 1rem; }
.kbd-help__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.kbd-help__list li { display: flex; gap: 1rem; justify-content: space-between; font-size: 0.92rem; align-items: center; }
.kbd-help__list kbd {
  display: inline-block; padding: 0.1rem 0.45rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.78rem;
  background: var(--bg); border: 1px solid var(--line); border-radius: 4px;
}
.kbd-help__list span { color: var(--ink-3); text-align: right; }

/* --- 23.23-26 Prefs popover + segmented controls ------------------- */
.prefs-pop {
  position: fixed;
  inset: auto;
  top: 4rem; right: 1rem;
  width: min(320px, 92vw);
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-3); padding: 1rem;
  color: var(--ink-1);
  box-shadow: var(--shadow-md);
}
.prefs-pop__title { margin: 0 0 0.65rem; font-weight: 700; }
.prefs-pop__hint { margin: 0.85rem 0 0; color: var(--ink-3); font-size: 0.78rem; font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; }
.prefs-pop__hint kbd { padding: 0 0.3rem; border: 1px solid var(--line); border-radius: 3px; }
.prefs-row {
  display: grid; grid-template-columns: 110px 1fr; align-items: center;
  gap: 0.6rem; margin-bottom: 0.55rem;
}
.prefs-row__label { font-size: 0.85rem; color: var(--ink-3); }
.seg {
  display: inline-flex; padding: 2px;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius-pill);
}
.seg button {
  flex: 1; padding: 0.3rem 0.6rem; font: inherit; font-size: 0.78rem;
  border: 0; background: transparent; color: var(--ink-2); cursor: pointer;
  border-radius: var(--radius-pill);
  transition: background var(--t-fast), color var(--t-fast);
}
.seg button[aria-pressed='true'] { background: var(--accent); color: var(--bg); font-weight: 600; }

/* --- Density tokens (23.23) ----------------------------------------- */
:root[data-density='compact'] { --sp-3: 0.55rem; --sp-4: 0.75rem; --sp-5: 1rem; --sp-6: 1.5rem; }
:root[data-density='comfy']   { --sp-3: 1rem;     --sp-4: 1.5rem;  --sp-5: 2rem;  --sp-6: 3rem; }

/* --- Motion intensity (23.24) -------------------------------------- */
:root[data-motion='low']  { --t-fast: 0.05s; --t-medium: 0.1s; --t-slow: 0.15s; }
:root[data-motion='low'] .marquee__track,
:root[data-motion='low'] .bg-aurora,
:root[data-motion='low'] .bg-leaks span,
:root[data-motion='low'] .link--flow,
:root[data-motion='low'] .pulseDot { animation: none !important; }
:root[data-motion='high'] .pillar:hover { transform: scale(1.02) translateY(-4px); }

/* --- Font style (23.25) -------------------------------------------- */
:root[data-font='serif'] body { font-family: 'Source Serif 4', 'Source Serif Pro', Georgia, serif; }
:root[data-font='mono']  body { font-family: 'JetBrains Mono', ui-monospace, monospace; }

/* --- Color-vision-safe theme (23.26) ------------------------------- */
:root[data-cvd='on'] {
  --accent: #2563eb;
  --accent-soft: #93c5fd;
}
:root[data-cvd='on'] .compare__lab--before { color: #ea580c; }

/* --- 23.29 Print pass ---------------------------------------------- */
@media print {
  .bg-aurora, .bg-leaks, .bg-grain, .hero__parallax,
  .rail-index, .scroll-top, .dock-cta, .pipe-pill,
  .cluster__chaos, .cmdk, .kbd-help, .prefs-pop, .toast,
  .marquee, .heatmap, .live-grid, .compare {
    display: none !important;
  }
  body { background: #fff !important; color: #000 !important; font-size: 11pt; }
  .nav { box-shadow: none; border-bottom: 1px solid #ccc; }
  .hero { min-height: auto !important; padding-block: 1.5rem !important; }
  .section { padding-block: 1.25rem !important; break-inside: avoid; }
  a { color: #000 !important; text-decoration: underline !important; }
  .stack { display: none; }
}

/* --- 23.33 Sticky bottom contact pill (mobile) --------------------- */
.dock-cta {
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom, 0) + 14px);
  right: 14px;
  z-index: 70;
  display: none;
  align-items: center; gap: 0.4rem;
  padding: 0.65rem 1rem;
  background: var(--accent); color: var(--bg);
  border-radius: var(--radius-pill);
  font-weight: 700; font-size: var(--fs-sm);
  box-shadow: 0 12px 24px -8px color-mix(in oklch, var(--accent) 60%, transparent);
  text-decoration: none;
  animation: ctaIn 0.5s ease both;
}
@keyframes ctaIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 720px) { .dock-cta { display: inline-flex; } }

/* --- 23.49 Orbital scroll-to-top ----------------------------------- */
.scroll-top {
  position: fixed; bottom: 24px; right: 24px;
  width: 42px; height: 42px;
  border-radius: 50%; border: 1px solid var(--line);
  background: var(--bg-card); color: var(--ink-1);
  display: grid; place-items: center;
  cursor: pointer; opacity: 0; pointer-events: none;
  transition: opacity var(--t-medium), transform var(--t-medium);
  z-index: 60;
}
.scroll-top.is-visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover { transform: translateY(-3px); border-color: var(--accent); color: var(--accent); }
@media (max-width: 720px) {
  .scroll-top { right: 14px; bottom: calc(env(safe-area-inset-bottom, 0) + 70px); }
}

/* --- 23.45 metric tooltip + 23.46 counter is JS-driven --------------- */
.metric { position: relative; }
.metric .info {
  display: inline-flex; align-items: center; justify-content: center;
  margin-left: 0.4rem;
  width: 16px; height: 16px;
  background: transparent; border: 1px solid var(--line); border-radius: 50%;
  color: var(--ink-3); cursor: pointer;
  font-size: 0.7rem; line-height: 1; padding: 0;
}
.metric .info:hover, .metric .info:focus-visible { color: var(--accent); border-color: var(--accent); }
.metric .info::after {
  content: attr(aria-label);
  position: absolute; bottom: calc(100% + 8px); right: 0;
  width: max-content; max-width: 280px;
  background: var(--bg-card); color: var(--ink-1);
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line); border-radius: var(--radius-1);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.78rem;
  pointer-events: none; opacity: 0; transform: translateY(4px);
  transition: opacity var(--t-fast), transform var(--t-fast);
  text-align: left; line-height: 1.4;
  z-index: 5;
  box-shadow: var(--shadow-md);
}
.metric:hover .info::after { content: attr(data-tip-source); opacity: 1; transform: translateY(0); }

/* --- 23.50 Resume flip ---------------------------------------------- */
.btn--flip {
  perspective: 600px;
  position: relative;
  overflow: hidden;
}
.btn--flip .btn__face {
  display: inline-flex; align-items: center; gap: 0.5rem;
  transition: transform var(--t-medium), opacity var(--t-medium);
  backface-visibility: hidden;
}
.btn--flip .btn__face--back {
  position: absolute; inset: 0;
  display: inline-flex; align-items: center; justify-content: center;
  transform: rotateX(90deg);
  opacity: 0;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.85rem;
}
.btn--flip:hover .btn__face--front { transform: rotateX(-90deg); opacity: 0; }
.btn--flip:hover .btn__face--back  { transform: rotateX(0); opacity: 1; }

/* --- 23.51 Section eyebrow becomes anchor copy --------------------- */
.section__eyebrow {
  cursor: pointer;
  position: relative;
}
.section__eyebrow:hover::after {
  content: '🔗 copy link';
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  font-size: 0.7rem; color: var(--accent);
  margin-left: 0.6rem;
}

/* --- 23.53 Letter-spacing breath (subtle) -------------------------- */
.section__title.in-view { animation: titleBreath 6s ease-in-out infinite; }
@keyframes titleBreath {
  0%, 100% { letter-spacing: -0.01em; }
  50%      { letter-spacing: 0.005em; }
}

/* --- 23.54 Smooth <details> open / close --------------------------- */
@supports (interpolate-size: allow-keywords) {
  details {
    interpolate-size: allow-keywords;
    transition: height var(--t-medium);
  }
  details::details-content {
    overflow: hidden;
    block-size: 0;
    transition: block-size var(--t-medium), content-visibility var(--t-medium) allow-discrete;
  }
  details[open]::details-content {
    block-size: auto;
  }
}

/* --- 23.12 Pipeline pill in nav ----------------------------------- */
.pipe-pill {
  display: none;
  align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  background: color-mix(in oklch, var(--accent) 12%, var(--bg-card));
  border: 1px solid color-mix(in oklch, var(--accent) 30%, var(--line));
  border-radius: var(--radius-pill);
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.74rem;
  color: var(--ink-2); white-space: nowrap;
}
.pipe-pill__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent) 20%, transparent);
  animation: pulseDot 2.4s infinite;
}
.pipe-pill__text strong { color: var(--accent); font-weight: 700; }
@media (min-width: 1100px) { .pipe-pill { display: inline-flex; } }

/* --- 23.40-44 Live signal cards ----------------------------------- */
.live-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.live-card {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius-2); padding: 1rem;
}
.live-card header { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 0.6rem; font-size: 0.85rem; color: var(--ink-3); }
.live-card header strong { color: var(--ink-1); }
.live-card__big {
  margin: 0.25rem 0 0.15rem; font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 1.3rem;
}
.live-card__sub { margin: 0; color: var(--ink-3); font-size: 0.85rem; }
.live-card__num { margin: 0.5rem 0 0; color: var(--accent); font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 1rem; }
.live-card__chart { display: flex; align-items: flex-end; gap: 2px; height: 60px; }
.live-card__chart i { display: block; flex: 1; background: linear-gradient(180deg, var(--accent), color-mix(in oklch, var(--accent) 30%, transparent)); border-radius: 1px; min-height: 2px; }
.live-card__bars { list-style: none; padding: 0; margin: 0.6rem 0 0; display: flex; flex-direction: column; gap: 0.35rem; }
.live-card__bars li { display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 0.6rem; font-size: 0.85rem; }
.live-card__bars span { color: var(--ink-3); }
.live-card__bars i { display: block; height: 6px; width: var(--w, 50%); background: var(--accent); border-radius: 999px; }
.live-card__badges { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; }
.live-card__badges li { display: grid; grid-template-columns: 14px 1fr auto; gap: 0.6rem; align-items: center; }
.live-card__badges span:nth-child(2) { color: var(--ink-3); }
.live-card__badges strong { color: var(--ink-1); font-weight: 700; }
.badge { width: 10px; height: 10px; border-radius: 50%; }
.badge--ok   { background: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent) 20%, transparent); }
.badge--warn { background: #f59e0b; box-shadow: 0 0 0 3px color-mix(in oklch, #f59e0b 20%, transparent); }
.live-card__eq { display: flex; gap: 3px; align-items: flex-end; height: 22px; margin-top: 0.5rem; }
.live-card__eq i {
  display: block; width: 4px; height: 6px;
  background: var(--accent); border-radius: 1px;
  animation: eqBounce 1.1s ease-in-out infinite;
}
.live-card__eq i:nth-child(2) { animation-delay: 0.15s; }
.live-card__eq i:nth-child(3) { animation-delay: 0.3s; }
.live-card__eq i:nth-child(4) { animation-delay: 0.45s; }
@keyframes eqBounce { 0%,100% { height: 6px; } 50% { height: 22px; } }

/* --- 23.35 Curtain reveal ----------------------------------------- */
.curtain {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg);
  transition: clip-path 700ms cubic-bezier(.85,0,.15,1);
  clip-path: inset(0 0 0 0);
  pointer-events: none;
}
.curtain.is-lifted { clip-path: inset(0 0 100% 0); }

/* --- 23.36 Particle assemble logo ---------------------------------- */
.nav__mark { position: relative; overflow: hidden; }
.nav__mark.is-assembling {
  color: transparent;
}
.nav__mark.is-assembling::after {
  content: 'A';
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--accent);
  animation: markIn 0.6s cubic-bezier(.16,1,.3,1) forwards;
}
@keyframes markIn { from { letter-spacing: 1em; opacity: 0; filter: blur(6px); } to { letter-spacing: 0; opacity: 1; filter: blur(0); } }

/* --- 23.37 Skeleton shimmer ---------------------------------------- */
.is-skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%,
    color-mix(in oklch, var(--accent) 8%, var(--bg-card)) 50%,
    var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: skel 1.4s ease-in-out infinite;
  color: transparent !important;
}
@keyframes skel { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* --- 23.39 view-transition-name on each section ------------------- */
.section, .hero { view-transition-name: var(--vt, none); }

/* --- 23.52 inline tool tags ---------------------------------------- */
.tool-tag {
  display: inline-block; padding: 0.05rem 0.35rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.85em;
  background: color-mix(in oklch, var(--accent) 10%, var(--bg-card));
  border: 1px solid color-mix(in oklch, var(--accent) 25%, var(--line));
  border-radius: 4px; color: var(--ink-1);
}

/* --- 23.47 year stamps on bullets ---------------------------------- */
.job__bullets li[data-year] {
  position: relative; padding-left: 4.5rem;
}
.job__bullets li[data-year]::before {
  content: attr(data-year);
  position: absolute; left: 0; top: 0.05rem;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.78rem;
  color: var(--ink-3); letter-spacing: 0.04em;
}

/* --- copy-toast (used by email copy) -------------------------------- */
.copy-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--bg-card); border: 1px solid var(--accent);
  padding: 0.4rem 0.8rem; border-radius: var(--radius-pill);
  color: var(--accent); font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace; font-size: 0.8rem;
  opacity: 0; pointer-events: none; transition: opacity var(--t-fast), transform var(--t-fast);
  z-index: 80;
}
.copy-toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* --- 23.30-32 mobile additions are JS-driven; CSS hooks: -------------*/
.is-pulled .toast { background: color-mix(in oklch, var(--accent) 25%, var(--bg-card)); }

/* --- safety: don't let any of the v2 features blow out tiny phones ---*/
@media (max-width: 480px) {
  .compare { padding: 0.75rem; }
  .live-grid { grid-template-columns: 1fr; }
  .dash { font-size: 0.78rem; }
  .termline { font-size: 0.78rem; }
  .pipe-pill { display: none !important; }
}


/* ===================================================================
   v3 — CLUSTER VISUAL UPGRADE  (the "make this awesome" pass)
   -------------------------------------------------------------------
   Layered effects on top of the existing cluster--interactive markup.
   Adds:
     • ambient glow + scanline behind the SVG
     • traveling packet dots running along each flow line
     • status LEDs that pulse on each pod
     • a CPU mini-bar visible on hover/focus
     • a "command-bar" caption with typewriter cursor + status badge
     • a chaos button with shockwave + spark trail on click
     • a glowing health-ring around the control plane
     • smooth state cycling: idle → traffic → degraded → recovered
   All gated under prefers-reduced-motion: no-preference.
   =================================================================== */

/* Container becomes a stage --------------------------------------- */
.cluster--interactive {
  padding: 0;
  width: 100%;
  max-width: 760px;             /* Bound the stage so it doesn't sprawl */
  margin-inline: auto;
  background:
    radial-gradient(circle at 50% 45%, color-mix(in oklch, var(--accent) 10%, transparent) 0%, transparent 65%),
    var(--bg-card);
  border: 1px solid color-mix(in oklch, var(--accent) 18%, var(--line));
  box-shadow:
    inset 0 1px 0 color-mix(in oklch, var(--accent) 10%, transparent),
    0 24px 48px -28px color-mix(in oklch, var(--accent) 30%, transparent);
}
/* Override the legacy .cluster svg max-width:480px so the diagram
   actually fills the stage on desktops -------------------------------- */
.cluster--interactive svg {
  max-width: 100% !important;
  height: auto;
  display: block;
  margin-inline: auto;
}

/* The SVG sits on top of an animated grid + scanline ------------- */
.cluster--interactive::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, transparent 0%, color-mix(in oklch, var(--accent) 22%, transparent) 50%, transparent 100%);
  background-size: 100% 220%;
  background-repeat: no-repeat;
  opacity: 0.55;
  pointer-events: none;
  animation: clusterScan 5s linear infinite;
  mix-blend-mode: screen;
  z-index: 0;
}
.cluster--interactive::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(color-mix(in oklch, var(--accent) 22%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklch, var(--accent) 22%, transparent) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
  opacity: 0.55;
  pointer-events: none;
  mask: radial-gradient(circle at 50% 45%, black 0%, transparent 80%);
  z-index: 0;
}
@keyframes clusterScan {
  0%   { background-position: 0% 120%; }
  100% { background-position: 0% -120%; }
}

/* Make sure the SVG renders ABOVE the scan overlay --------------- */
.cluster--interactive svg {
  position: relative;
  z-index: 2;
  padding: 1.5rem 1.5rem 0.5rem;
  /* Make the diagram visually larger by compensating for viewBox aspect */
  aspect-ratio: 480 / 220;
}

/* Ambient glow under the control plane circle -------------------- */
.cluster--interactive .control {
  filter:
    drop-shadow(0 0 4px var(--accent))
    drop-shadow(0 0 12px color-mix(in oklch, var(--accent) 60%, transparent));
  animation: corePulse 2.4s ease-in-out infinite;
}
@keyframes corePulse {
  0%, 100% { filter: drop-shadow(0 0 4px var(--accent)) drop-shadow(0 0 12px color-mix(in oklch, var(--accent) 60%, transparent)); }
  50%      { filter: drop-shadow(0 0 8px var(--accent)) drop-shadow(0 0 22px color-mix(in oklch, var(--accent) 80%, transparent)); }
}

/* Each pod gets a layered "chip" look + status LED --------------- */
.cluster--interactive .pod-g .pod {
  fill: color-mix(in oklch, var(--bg-alt) 80%, var(--accent));
  stroke: color-mix(in oklch, var(--accent) 70%, var(--line));
  stroke-width: 1.6;
  filter: drop-shadow(0 0 3px color-mix(in oklch, var(--accent) 30%, transparent));
}
.cluster--interactive .pod-g .pod-led {
  fill: var(--accent);
  filter: drop-shadow(0 0 3px var(--accent));
  animation: ledBlink 1.6s ease-in-out infinite;
}
.cluster--interactive .pod-g[data-status="warn"] .pod-led { fill: #f59e0b; filter: drop-shadow(0 0 4px #f59e0b); }
.cluster--interactive .pod-g[data-status="crit"] .pod-led { fill: #ef4444; filter: drop-shadow(0 0 6px #ef4444); animation-duration: 0.5s; }

@keyframes ledBlink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

/* CPU mini-bar (the small bar tucked inside the hex) ------------- */
.cluster--interactive .pod-bar-bg { fill: color-mix(in oklch, var(--ink-3) 25%, transparent); }
.cluster--interactive .pod-bar-fg {
  fill: var(--accent);
  filter: drop-shadow(0 0 3px var(--accent));
  animation: barFlicker 3s ease-in-out infinite;
}
@keyframes barFlicker {
  0%, 100% { opacity: 0.95; }
  47%      { opacity: 0.7; }
  53%      { opacity: 1; }
}

/* Hover: lift, glow, label appears above the hex ----------------- */
.cluster--interactive .pod-g:hover .pod,
.cluster--interactive .pod-g:focus-visible .pod {
  filter:
    drop-shadow(0 0 6px var(--accent))
    drop-shadow(0 0 18px color-mix(in oklch, var(--accent) 60%, transparent));
  transform: scale(1.12) translateY(-2px);
}

/* Killed state — red, shake, and emit a sparks burst ------------ */
.cluster--interactive .pod-g.is-killed .pod {
  fill: #7f1d1d !important;
  stroke: #ef4444 !important;
  filter: drop-shadow(0 0 8px #ef4444);
  animation: podShake 0.35s linear;
}
.cluster--interactive .pod-g.is-killed .pod-led {
  fill: #ef4444 !important;
  animation: ledBlink 0.35s linear infinite;
}
.cluster--interactive .pod-g.is-recovered .pod {
  fill: color-mix(in oklch, var(--accent) 30%, var(--bg-alt)) !important;
  filter: drop-shadow(0 0 12px var(--accent));
  animation: recoverFlash 0.6s ease-out;
}
@keyframes recoverFlash {
  0%   { filter: drop-shadow(0 0 0 var(--accent)); }
  40%  { filter: drop-shadow(0 0 18px var(--accent)); }
  100% { filter: drop-shadow(0 0 12px var(--accent)); }
}

/* Flow-lines: layered — base + bright traveling stripe ----------- */
.cluster--interactive .link--flow {
  stroke: color-mix(in oklch, var(--accent) 35%, transparent);
  stroke-width: 1.4;
  stroke-dasharray: 4 6;
  animation: flowDash 1.6s linear infinite;
  filter: drop-shadow(0 0 2px color-mix(in oklch, var(--accent) 50%, transparent));
}

/* Traveling "packets" — small circles that ride each link via JS  */
.cluster--interactive .packet {
  fill: var(--accent);
  filter: drop-shadow(0 0 4px var(--accent));
}

/* Concentric rings around the control plane (added by JS) ------- */
.cluster--interactive .ring {
  fill: none;
  stroke: color-mix(in oklch, var(--accent) 55%, transparent);
  stroke-width: 1.2;
  transform-origin: 240px 100px;
  transform-box: view-box;
  animation: ringPulse 2.6s ease-out infinite;
  opacity: 0;
}
.cluster--interactive .ring:nth-child(2) { animation-delay: 0.85s; }
.cluster--interactive .ring:nth-child(3) { animation-delay: 1.7s; }
@keyframes ringPulse {
  0%   { r: 14; opacity: 0.65; stroke-width: 1.6; }
  100% { r: 70; opacity: 0;    stroke-width: 0.6; }
}

/* New status banner — sits across the bottom of the SVG --------- */
.cluster__hud {
  position: relative;
  z-index: 3;
  padding: 1rem 1.25rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: linear-gradient(to top, color-mix(in oklch, var(--accent) 12%, var(--bg-card)) 0%, transparent 100%);
  border-top: 1px solid color-mix(in oklch, var(--accent) 18%, var(--line));
}
.cluster__caption {
  position: static;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.95rem;
  background: color-mix(in oklch, var(--accent) 14%, var(--bg-alt));
  border: 1px solid color-mix(in oklch, var(--accent) 35%, var(--line));
  border-radius: 8px;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', 'JetBrains Mono Fallback', monospace;
  box-shadow: inset 0 1px 0 color-mix(in oklch, var(--accent) 25%, transparent);
}
.cluster__caption::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: ledBlink 1.2s ease-in-out infinite;
}
.cluster__caption::after {
  content: '▎';
  margin-left: 2px;
  color: var(--accent);
  animation: caretBlink 0.9s steps(1) infinite;
}
@keyframes caretBlink { 50% { opacity: 0; } }

.cluster--interactive[data-state='traffic']  .cluster__caption { background: color-mix(in oklch, var(--accent) 18%, var(--bg-alt)); }
.cluster--interactive[data-state='degraded'] .cluster__caption { color: #f59e0b; border-color: #f59e0b; background: color-mix(in oklch, #f59e0b 12%, var(--bg-alt)); }
.cluster--interactive[data-state='degraded'] .cluster__caption::before { background: #f59e0b; box-shadow: 0 0 8px #f59e0b; }
.cluster--interactive[data-state='healing']  .cluster__caption { color: #22d3ee; border-color: #22d3ee; background: color-mix(in oklch, #22d3ee 12%, var(--bg-alt)); }
.cluster--interactive[data-state='healing']  .cluster__caption::before { background: #22d3ee; box-shadow: 0 0 8px #22d3ee; }

/* Chaos button — shockwave + sparks ------------------------------ */
.cluster__chaos {
  position: relative;
  background: linear-gradient(135deg, color-mix(in oklch, #ef4444 20%, var(--bg-card)) 0%, color-mix(in oklch, #b91c1c 25%, var(--bg-card)) 100%);
  border: 1px solid color-mix(in oklch, #ef4444 50%, transparent);
  color: #fecaca;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.75rem;
  overflow: visible;
  isolation: isolate;
}
.cluster__chaos::before {
  content: '';
  position: absolute; inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, #ef4444, #f59e0b, #ef4444);
  z-index: -1;
  opacity: 0;
  filter: blur(6px);
  transition: opacity 200ms;
}
.cluster__chaos:hover::before { opacity: 0.55; }
.cluster__chaos:hover { color: #fff; transform: translateY(-2px); }
.cluster__chaos:active { transform: translateY(0) scale(0.97); }
.cluster__chaos.is-firing { animation: chaosFire 0.5s ease-out; }
@keyframes chaosFire {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklch, #ef4444 80%, transparent); }
  100% { box-shadow: 0 0 0 32px color-mix(in oklch, #ef4444 0%, transparent); }
}
.cluster__chaos-icon {
  display: inline-block;
  animation: spark 1.6s ease-in-out infinite;
}
@keyframes spark {
  0%, 100% { transform: rotate(0); }
  10%      { transform: rotate(-12deg) scale(1.15); }
  20%      { transform: rotate(8deg)   scale(0.95); }
  30%      { transform: rotate(0); }
}

/* Tooltip — frosty glass with accent rail ----------------------- */
.cluster__tip {
  background: color-mix(in oklch, var(--bg-card) 80%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid color-mix(in oklch, var(--accent) 35%, var(--line));
  border-left: 3px solid var(--accent);
  box-shadow: 0 14px 28px -8px color-mix(in oklch, var(--accent) 25%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .cluster--interactive::before,
  .cluster--interactive .control,
  .cluster--interactive .pod-led,
  .cluster--interactive .ring,
  .cluster__caption::before,
  .cluster__caption::after,
  .cluster__chaos-icon,
  .cluster--interactive .pod-bar-fg { animation: none; }
}

/* =====================================================================
   Pause infinite animations inside offscreen sections
   ---------------------------------------------------------------------
   Combined with the IntersectionObserver in script.js that toggles
   data-offscreen on each <section>, this stops 60+ infinite CSS
   animations from burning compositor cycles when nobody can see them.
   We exclude .nav and the hero pieces so the always-visible chrome
   keeps animating.
   ===================================================================== */
.section[data-offscreen="true"] *,
.section[data-offscreen="true"]::before,
.section[data-offscreen="true"]::after {
  animation-play-state: paused !important;
}

/* =====================================================================
   Low-power mode — kill decorative loops on weak hardware
   ---------------------------------------------------------------------
   Set by script.js when navigator.deviceMemory <= 4 OR
   navigator.hardwareConcurrency <= 4. Removes the heaviest infinite
   animations (full-viewport blob drift, aurora, leaks, breathing
   headings, looping shimmer) so the GPU compositor isn't pinned.
   The site still looks the same — just static instead of animated.
   ===================================================================== */
:root[data-low-power] .bg-mesh__blob,
:root[data-low-power] .bg-aurora,
:root[data-low-power] .bg-leaks__a,
:root[data-low-power] .bg-leaks__b,
:root[data-low-power] .hero__name,
:root[data-low-power] .hero__name-accent,
:root[data-low-power] .section__title.in-view {
  animation: none !important;
}

/* Hide the heaviest decorative layers entirely on low-power.
   They're full-viewport gradients with multi-color radial blends —
   even static, they cost paint on weak GPUs. */
:root[data-low-power] .bg-aurora,
:root[data-low-power] .bg-leaks {
  display: none;
}