/* =========================================================
   ntcad — personal site
   light cool base
   ========================================================= */

@layer components {

:root {
  --base: #eef2f8;
  --base-2: #e4eaf3;
  --surface: #ffffff;
  --ink: #0e1524;
  --ink-muted: #5b6578;
  --ink-soft: #8892a6;
  --accent: oklch(0.62 0.13 240);
  --accent-soft: oklch(0.78 0.08 240);
  --accent-ink: oklch(0.42 0.14 240);
  --edge: rgba(14, 21, 36, 0.08);
  --edge-strong: rgba(14, 21, 36, 0.16);

  --tile-r: 22px;

  --tile-bg: rgba(255, 255, 255, 0.88);
  --tile-bg-hero: rgba(255, 255, 255, 0.75);
  --tile-shadow:
    0 6px 18px -12px rgba(20, 40, 90, 0.12),
    0 1px 2px -1px rgba(20, 40, 90, 0.05);
  --tile-shadow-hero:
    0 6px 18px -12px rgba(20, 40, 90, 0.10),
    0 1px 2px -1px rgba(20, 40, 90, 0.04);
  --tile-inset-top: rgba(255, 255, 255, 0.8);
  --tile-inset-bottom: rgba(255, 255, 255, 0.25);
  --tile-hover-shadow:
    0 30px 60px -20px rgba(20, 40, 90, 0.30),
    0 4px 16px -2px rgba(20, 40, 90, 0.15);
  --tile-edge-highlight: linear-gradient(to right, transparent, rgba(255,255,255,0.8), transparent);
  --ink-tile-bg: #0e1524;
  --ink-tile-fg: #ffffff;
  --scrim: rgba(14, 21, 36, 0.35);
  --seg-inset-top: rgba(255,255,255,0.35);
  --seg-inset-bottom: rgba(0,0,0,0.06);

  --font-display: 'Inter Tight', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

html[data-theme="dark"] {
  --base: #0a0f1e;
  --base-2: #0f172b;
  --surface: #121a2e;
  --ink: #e7ecf5;
  --ink-muted: #99a3b8;
  --ink-soft: #6c7690;
  --accent: oklch(0.74 0.13 240);
  --accent-soft: oklch(0.62 0.10 240);
  --accent-ink: oklch(0.85 0.10 240);
  --edge: rgba(255, 255, 255, 0.08);
  --edge-strong: rgba(255, 255, 255, 0.18);

  --tile-bg: rgba(26, 36, 58, 0.7);
  --tile-bg-hero: rgba(26, 36, 58, 0.55);
  --tile-shadow:
    0 6px 18px -12px rgba(0, 0, 0, 0.55),
    0 1px 2px -1px rgba(0, 0, 0, 0.4);
  --tile-shadow-hero:
    0 6px 18px -12px rgba(0, 0, 0, 0.45),
    0 1px 2px -1px rgba(0, 0, 0, 0.3);
  --tile-inset-top: rgba(255, 255, 255, 0.10);
  --tile-inset-bottom: rgba(0, 0, 0, 0.3);
  --tile-hover-shadow:
    0 30px 60px -20px rgba(0, 0, 0, 0.65),
    0 4px 16px -2px rgba(0, 0, 0, 0.45);
  --tile-edge-highlight: linear-gradient(to right, transparent, rgba(255,255,255,0.25), transparent);
  --ink-tile-bg: #060a14;
  --ink-tile-fg: #ffffff;
  --scrim: rgba(0, 0, 0, 0.6);
  --seg-inset-top: rgba(255,255,255,0.08);
  --seg-inset-bottom: rgba(0,0,0,0.3);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
html {
  background: var(--base);
  scroll-behavior: smooth;
  scroll-padding-top: var(--scroll-offset, 96px);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

#about, #projects, #stack, #blog, #exp, #contact {
  scroll-margin-top: var(--scroll-offset, 96px);
}
body { min-height: 100vh; overflow-x: hidden; position: relative; background: transparent; }

.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
  background: linear-gradient(175deg, oklch(0.99 0.012 220) 0%, oklch(0.96 0.03 232) 100%);
}
.bg-aurora::before,
.bg-aurora::after {
  content: "";
  position: absolute;
  inset: -30%;
  will-change: transform;
}
.bg-aurora::before {
  background:
    radial-gradient(40% 38% at 20% 25%, oklch(0.93 0.09 235 / 0.85), transparent 62%),
    radial-gradient(35% 32% at 82% 18%, oklch(0.96 0.05 205 / 0.75), transparent 60%),
    radial-gradient(45% 42% at 78% 82%, oklch(0.89 0.11 258 / 0.70), transparent 62%),
    radial-gradient(32% 32% at 14% 90%, oklch(0.97 0.04 218 / 0.80), transparent 60%);
  filter: blur(38px);
  animation: aurora-drift 18s ease-in-out infinite alternate;
}
.bg-aurora::after {
  background: conic-gradient(from 140deg at 50% 50%,
    oklch(0.97 0.05 215 / 0.55) 0%,
    oklch(0.89 0.12 250 / 0.35) 22%,
    oklch(0.98 0.03 200 / 0.50) 44%,
    oklch(0.92 0.09 232 / 0.40) 66%,
    oklch(0.94 0.07 260 / 0.45) 82%,
    oklch(0.97 0.05 215 / 0.55) 100%);
  filter: blur(70px) saturate(115%);
  mix-blend-mode: screen;
  animation: aurora-spin 28s linear infinite;
}
@keyframes aurora-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(6%, -4%, 0) scale(1.09); }
  100% { transform: translate3d(-4%, 5%, 0) scale(0.95); }
}
@keyframes aurora-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
html[data-theme="dark"] .bg-aurora { display: none; }
@media (prefers-reduced-motion: reduce) {
  .bg-aurora::before,
  .bg-aurora::after { animation: none; }
}

.bg-layer { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.bg-layer::before {
  content: ""; position: absolute; inset: -20%;
  background: none;
}
.bg-layer::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--edge) 1px, transparent 1px),
    linear-gradient(to bottom, var(--edge) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(80% 60% at 50% 50%, black 40%, transparent 100%);
}
html[data-theme="dark"] .bg-layer::before {
  background:
    radial-gradient(45% 40% at 15% 20%, oklch(0.45 0.14 260 / 0.6), transparent 60%),
    radial-gradient(35% 30% at 85% 10%, oklch(0.40 0.12 220 / 0.55), transparent 60%),
    radial-gradient(40% 45% at 80% 85%, oklch(0.50 0.15 280 / 0.5), transparent 60%),
    radial-gradient(30% 35% at 10% 95%, oklch(0.42 0.10 240 / 0.55), transparent 60%);
}

.shell { max-width: 1280px; margin: 0 auto; padding: 22px 32px 30px; }

/* ---------- Topbar: 3 segments ---------- */
.topbar--3seg {
  position: sticky;
  top: 14px;
  z-index: 40;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 6px;
  border-radius: 999px;
  background: transparent;
  border: none;
  box-shadow: none;
}
.tb-seg {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--tile-bg);
  border: 1px solid var(--edge);
  box-shadow: var(--tile-shadow), inset 0 1px 0 var(--seg-inset-top), inset 0 -1px 0 var(--seg-inset-bottom);
}
.tb-seg--left  { justify-self: start; padding: 8px 18px; }
.tb-seg--center{ justify-self: center; padding: 4px 8px; }
.tb-seg--right { justify-self: end; gap: 6px; padding: 4px 6px; }

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 18px;
  color: var(--ink);
  text-decoration: none;
}
.brand .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
}
.brand-name { padding-right: 4px; }

.topbar--3seg nav {
  display: flex; gap: 2px;
  font-family: var(--font-body);
  font-size: 14px;
}
.topbar--3seg nav a {
  color: var(--ink-muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background .18s, color .18s;
}
.topbar--3seg nav a:hover {
  color: var(--ink);
  background: color-mix(in oklab, var(--ink) 7%, transparent);
}

.icon-btn {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--edge);
  background: color-mix(in oklab, var(--surface) 60%, transparent);
  color: var(--ink);
  cursor: pointer;
  transition: background .18s, transform .18s;
}
.icon-btn--sm { width: 30px; height: 30px; }
.icon-btn--sm svg { width: 14px; height: 14px; }
.icon-btn:hover { background: color-mix(in oklab, var(--surface) 90%, transparent); }

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--edge);
  border-radius: 999px;
  padding: 3px;
  background: color-mix(in oklab, var(--surface) 60%, transparent);
}
.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 9px;
  border-radius: 999px;
  cursor: pointer;
  letter-spacing: 0.04em;
}
.lang-switch button.is-active { background: var(--ink); color: var(--surface); }

/* ---------- Hero ---------- */
.hero {
  margin-top: 26px;
}
.hero-stage {
  position: relative;
  padding: 56px 44px 64px;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  isolation: isolate;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(48px, 7.2vw, 104px);
  line-height: 0.96;
  letter-spacing: -0.035em;
  margin: 22px 0 22px;
  color: var(--ink);
  max-width: 14ch;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-line {
  display: inline-flex;
  align-items: center;
  align-content: flex-start;
  flex-wrap: wrap;
  gap: 0.18em;
  /*  Reserve a single row + the row-gap that would appear if the text wraps. */
  min-height: calc(1lh + 0.18em);
}
.hero-line--ghost {
  /*  Plain inline-block so whitespace text nodes between word spans aren't */
  /*  stripped by flex layout (which would render the words run-together). */
  display: inline-block;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in oklab, var(--ink) 22%, transparent);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-ink) 60%, var(--accent) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
/*  Word's stacking context (opacity + transform) prevents the em's text-clipped */
/*  gradient from reaching across into it — paint the gradient on the word too. */
.hero-title em > .word {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-ink) 60%, var(--accent) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-stage.is-ready .hero-title em,
.hero-stage.is-ready .hero-title em > .word {
  animation: hero-shimmer 6s ease-in-out infinite;
}
.hero-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  /*  Match line-height exactly so the avatar's row isn't taller than a text row. */
  width: 1lh;
  height: 1lh;
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--edge);
  box-shadow:
    0 18px 36px -16px rgba(20, 40, 90, 0.35),
    0 2px 6px -1px rgba(20, 40, 90, 0.18),
    inset 0 0 0 4px var(--surface);
  vertical-align: middle;
  margin: 0 0.06em;
  transform-origin: center;
}
.hero-stage.is-ready .hero-avatar {
  animation: hero-bob 6.5s ease-in-out infinite;
}
.hero-avatar__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-lead {
  font-size: 17px;
  max-width: 46ch;
  color: var(--ink-muted);
  margin: 0 0 28px;
  /*  Reserve the natural two-line wrap height — keeps page from jolting as the */
  /*  lead reveals without adding empty padding underneath. */
  min-height: 2lh;
}
.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity .8s cubic-bezier(.2,.7,.2,1),
    transform .8s cubic-bezier(.2,.7,.2,1);
}
.hero-stage.is-ready .hero-actions {
  opacity: 1;
  transform: translateY(0);
}

/* Floating decorations */
.hero-float {
  position: absolute;
  z-index: 1;
  pointer-events: auto;
  opacity: 0;
  transition:
    opacity .75s cubic-bezier(.2,.7,.2,1),
    transform .75s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.hero-float--pill {
  right: 14%;
  bottom: 44%;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border-radius: 999px;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--ink) 92%, var(--accent)) 0%,
    color-mix(in oklab, var(--ink) 84%, transparent) 100%);
  border: 1px solid color-mix(in oklab, var(--ink) 60%, transparent);
  box-shadow:
    0 22px 40px -22px rgba(14, 21, 36, 0.55),
    0 4px 10px -4px rgba(14, 21, 36, 0.35),
    inset 0 1px 0 rgba(255,255,255,0.08);
  transform: rotate(-4deg) translateY(18px) scale(.96);
}
.hero-stage.is-ready .hero-float--pill {
  opacity: 1;
  transform: rotate(-4deg) translateY(0) scale(1);
  animation: hero-pill-drift 9s ease-in-out .9s infinite;
}
.hero-pill__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  color: color-mix(in oklab, white 70%, transparent);
  background: transparent;
  transition: background .2s, color .2s, transform .2s;
  cursor: default;
}
.hero-pill__icon:hover {
  background: color-mix(in oklab, white 10%, transparent);
  color: white;
  transform: translateY(-1px);
}
.hero-pill__icon--active {
  background: color-mix(in oklab, var(--surface) 92%, transparent);
  color: var(--accent-ink);
  box-shadow: 0 6px 14px -6px rgba(0,0,0,0.35);
}
.hero-pill__icon--active:hover {
  background: var(--surface);
  color: var(--accent-ink);
}

.hero-float--card {
  right: 4%;
  bottom: 8%;
  width: min(280px, 32vw);
  transform: rotate(6deg) translateY(22px) scale(.96);
  transition:
    opacity .85s cubic-bezier(.2,.7,.2,1) .12s,
    transform .85s cubic-bezier(.2,.7,.2,1) .12s;
}
.hero-stage.is-ready .hero-float--card {
  opacity: 1;
  transform: rotate(6deg) translateY(0) scale(1);
  animation: hero-card-drift 10s ease-in-out 1.2s infinite;
}
.hero-ops {
  position: relative;
  padding: 16px 18px;
  border-radius: 18px;
  background: linear-gradient(160deg,
    color-mix(in oklab, var(--accent-soft) 18%, var(--surface)) 0%,
    color-mix(in oklab, var(--accent) 12%, var(--surface)) 50%,
    color-mix(in oklab, var(--accent-ink) 14%, var(--surface)) 100%);
  border: 1px solid color-mix(in oklab, var(--accent) 30%, var(--edge));
  box-shadow:
    0 28px 60px -22px rgba(20, 40, 90, 0.45),
    0 6px 16px -4px rgba(20, 40, 90, 0.18),
    inset 0 1px 0 rgba(255,255,255,0.45);
  font-family: var(--font-mono);
  color: var(--ink);
  overflow: hidden;
}
.hero-ops::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 70%;
  aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 35%, transparent), transparent 65%);
  filter: blur(20px);
  pointer-events: none;
}
.hero-ops__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 12px;
}
.hero-ops__live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-ink);
  font-weight: 600;
}
.hero-ops__pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: oklch(0.72 0.18 150);
  box-shadow: 0 0 0 0 color-mix(in oklab, oklch(0.72 0.18 150) 55%, transparent);
  animation: hero-pulse 1.8s ease-out infinite;
}
.hero-ops__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
  padding: 5px 0;
  border-top: 1px dashed color-mix(in oklab, var(--ink) 8%, transparent);
}
.hero-ops__row:first-of-type { border-top: 0; }
.hero-ops__label {
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}
.hero-ops__value {
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
}
.hero-ops__value span {
  font-size: 10px;
  color: var(--ink-soft);
  margin-left: 2px;
  font-weight: 500;
}
.hero-ops__value--ok {
  color: oklch(0.55 0.16 150);
}
.hero-ops__bar {
  margin-top: 10px;
  height: 4px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--ink) 8%, transparent);
  overflow: hidden;
}
.hero-ops__bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent));
  border-radius: 999px;
  animation: hero-bar 4.5s ease-in-out infinite;
}

@keyframes hero-bob {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(-6px) rotate(3deg); }
}
@keyframes hero-pill-drift {
  0%, 100% { transform: rotate(-4deg) translateY(0); }
  50%      { transform: rotate(-2deg) translateY(-8px); }
}
@keyframes hero-card-drift {
  0%, 100% { transform: rotate(6deg) translateY(0); }
  50%      { transform: rotate(4deg) translateY(-10px); }
}
@keyframes hero-pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklab, oklch(0.72 0.18 150) 55%, transparent); }
  70%  { box-shadow: 0 0 0 8px color-mix(in oklab, oklch(0.72 0.18 150) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in oklab, oklch(0.72 0.18 150) 0%, transparent); }
}
@keyframes hero-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}
@keyframes hero-bar {
  0%, 100% { transform: translateX(0); opacity: .9; }
  50%      { transform: translateX(8%); opacity: 1; }
}

/* Per-word reveal — inline-block so transform works without breaking inline flow.
 * Words split out preserves kerning + letter-spacing inside each text node. */
.word {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.18em);
  transition:
    opacity .35s cubic-bezier(.2,.7,.2,1),
    transform .35s cubic-bezier(.2,.7,.2,1);
}
.word.is-on {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .word { opacity: 1; transform: none; transition: none; }
}

html[data-theme="dark"] .hero-line--ghost {
  -webkit-text-stroke-color: color-mix(in oklab, var(--ink) 28%, transparent);
}
html[data-theme="dark"] .hero-avatar {
  border-color: color-mix(in oklab, var(--ink) 25%, transparent);
  box-shadow:
    0 18px 36px -16px rgba(0,0,0,0.6),
    0 2px 6px -1px rgba(0,0,0,0.4),
    inset 0 0 0 4px var(--surface);
}
html[data-theme="dark"] .hero-float--pill {
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--surface) 80%, var(--accent)) 0%,
    color-mix(in oklab, var(--surface) 95%, transparent) 100%);
  border-color: color-mix(in oklab, white 14%, transparent);
}
html[data-theme="dark"] .hero-pill__icon {
  color: color-mix(in oklab, white 60%, transparent);
}
html[data-theme="dark"] .hero-pill__icon--active {
  background: color-mix(in oklab, var(--accent) 30%, var(--surface));
  color: white;
}
html[data-theme="dark"] .hero-ops {
  background: linear-gradient(160deg,
    color-mix(in oklab, var(--accent) 25%, var(--surface)) 0%,
    color-mix(in oklab, var(--accent-ink) 18%, var(--surface)) 100%);
  border-color: color-mix(in oklab, var(--accent) 35%, transparent);
}
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s, background .18s, box-shadow .18s;
}
.btn--primary { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 10px 20px -10px rgba(14,21,36,0.4); }
.btn--ghost { background: color-mix(in oklab, var(--surface) 50%, transparent); color: var(--ink); border-color: var(--edge); }
.btn--ghost:hover { background: var(--surface); }

/* ---------- Tile base ---------- */
.tile {
  position: relative;
  border-radius: var(--tile-r);
  background: var(--tile-bg);
  box-shadow: var(--tile-shadow);
  padding: 22px;
  overflow: hidden;
  transition: transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s;
  transform-style: preserve-3d;
  will-change: transform;
}
.tile--solid { background: var(--surface); }
.tile--ink { background: var(--ink-tile-bg); color: var(--ink-tile-fg); border-color: transparent; }
.tile--ink .tile-title, .tile--ink .tile-kicker, .tile--ink .tile-body { color: inherit; }
.tile--ink .tile-kicker { color: color-mix(in oklab, white 60%, transparent); }
.tile--ink .tile-body { color: color-mix(in oklab, white 75%, transparent); }
.tile--ink .tag { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.12); color: color-mix(in oklab, white 80%, transparent); }
.tile--ink .tag--accent { background: color-mix(in oklab, var(--accent) 35%, transparent); border-color: color-mix(in oklab, var(--accent) 55%, transparent); color: white; }

.tile::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(240px circle at var(--mx, -200px) var(--my, -200px),
    rgba(255,255,255,0.45), transparent 55%);
  opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}
.tile:hover::before { opacity: 1; }
html[data-theme="dark"] .tile::before,
.tile--ink::before {
  background: radial-gradient(240px circle at var(--mx, -200px) var(--my, -200px),
    rgba(255,255,255,0.18), transparent 55%);
}
.tile::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--tile-edge-highlight);
  pointer-events: none;
}
.tile--ink::after {
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.25), transparent);
}

.tile--clickable { cursor: pointer; }
.tile--clickable:hover {
  transform: translateY(-3px);
  box-shadow:
    0 1px 0 var(--tile-inset-top) inset,
    0 -1px 0 var(--tile-inset-bottom) inset,
    var(--tile-hover-shadow);
}

.tile-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: inline-flex; align-items: center; gap: 8px;
}
.tile-title {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 10px 0 6px;
  line-height: 1.15;
}
.tile-body {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.55;
  text-wrap: pretty;
}

.arrow-btn {
  width: 34px; height: 34px;
  border-radius: 999px;
  border: 1px solid var(--edge);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink);
  background: color-mix(in oklab, var(--surface) 55%, transparent);
  flex-shrink: 0;
}
.arrow-btn--ink {
  border-color: rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: white;
}
.prio-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
}

.placeholder { position: absolute; inset: auto 0 0 0; height: 60%; border-radius: calc(var(--tile-r) - 6px); margin: 6px; }

.ph-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: color-mix(in oklab, var(--surface) 80%, transparent);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
}

/* Tags */
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--ink) 5%, transparent);
  color: var(--ink-muted);
  border: 1px solid var(--edge);
}
.tag--accent {
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  color: var(--accent-ink);
  border-color: color-mix(in oklab, var(--accent) 30%, transparent);
}

/* ---------- Stats full-width bar ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 18px;
}
.stat-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 24px;
}
.statsbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 22px 28px;
  gap: 0;
  align-items: stretch;
}
.statsbar__cell {
  padding: 6px 24px;
  border-left: 1px solid var(--edge);
  display: flex; flex-direction: column; gap: 6px;
}
.statsbar__cell:first-child { border-left: 0; padding-left: 0; }
.statsbar__cell:last-child { padding-right: 0; }
.statsbar__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 4.2vw, 56px);
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-wrap: nowrap;
}
.statsbar__sub {
  font-size: 12px;
  color: var(--ink-muted);
  font-family: var(--font-body);
}

/* ---------- Grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(0, auto);
  gap: 18px;
  margin-top: 28px;
}
.grid--tight { margin-top: 14px; }

.section-head {
  grid-column: 1 / -1;
  display: flex; align-items: baseline; gap: 14px;
  margin: 6px 0 -4px;
}
.section-head--tight { margin: 2px 0 -8px; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(24px, 2.4vw, 32px);
  margin: 0;
  color: var(--ink);
}
.section-head .section-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.section-head .section-meta b { color: var(--ink); font-weight: 500; }

/* ---------- Area presets ---------- */
.a-avatar { grid-column: 1 / -1; }
.a-proj { grid-column: span 6; min-height: 280px; }
.a-nda  { grid-column: 1 / -1; }
.a-stack { grid-column: span 4; }
.a-blog  { grid-column: span 8; }
.a-exp     { grid-column: span 7; }
.a-contact { grid-column: span 5; }

/* ---------- Stack chips list ---------- */
.stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.stack-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  padding: 7px 11px;
  border-radius: 10px;
  border: 1px solid var(--edge);
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  color: var(--ink);
  transition: transform .15s, background .15s, border-color .15s;
}
.stack-chip:hover { transform: translateY(-1px); background: var(--surface); border-color: var(--edge-strong); }
.stack-chip--accent {
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  color: var(--accent-ink);
  border-color: color-mix(in oklab, var(--accent) 30%, transparent);
  font-weight: 500;
}

/* ---------- Blog list ---------- */
.post-list { display: grid; gap: 8px; margin-top: 12px; }
.post-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--edge);
  background: color-mix(in oklab, var(--surface) 55%, transparent);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: background .18s, transform .18s, border-color .18s;
}
.post-row:hover {
  background: color-mix(in oklab, var(--surface) 90%, transparent);
  border-color: var(--edge-strong);
  transform: translateX(2px);
}
.post-date { font-family: var(--font-mono); font-size: 12px; color: var(--ink-soft); min-width: 64px; }
.post-title { font-weight: 500; color: var(--ink); }
.post-meta { font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft); }

/* ---------- Experience ---------- */
.xp-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.xp-item {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--edge);
  background: color-mix(in oklab, var(--surface) 55%, transparent);
  transition: background .18s, border-color .18s, transform .18s;
}
.xp-item:hover {
  background: color-mix(in oklab, var(--surface) 85%, transparent);
  border-color: var(--edge-strong);
  transform: translateX(2px);
}
.xp-item--current {
  background: color-mix(in oklab, var(--accent) 9%, var(--surface));
  border-color: color-mix(in oklab, var(--accent) 30%, transparent);
}
.xp-rail { display: flex; justify-content: center; padding-top: 6px; }
.xp-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--ink-soft);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--ink) 8%, transparent);
}
.xp-item--current .xp-dot {
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
}
.xp-body { display: grid; gap: 3px; }
.xp-row1 { display: flex; justify-content: space-between; align-items: baseline; }
.xp-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.xp-dur {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  padding: 2px 8px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--ink) 5%, transparent);
  border: 1px solid var(--edge);
}
.xp-item--current .xp-dur {
  color: var(--accent-ink);
  background: color-mix(in oklab, var(--accent) 15%, transparent);
  border-color: color-mix(in oklab, var(--accent) 30%, transparent);
}
.xp-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-top: 2px;
}
.xp-sub { font-size: 13px; color: var(--ink-muted); }

/* ---------- Contacts ---------- */
.contacts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
}
.contact {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: color-mix(in oklab, var(--surface) 60%, transparent);
  border: 1px solid var(--edge);
  text-decoration: none;
  color: var(--ink);
  font-size: 14px;
  transition: background .18s, border-color .18s;
}
.contact:hover { background: color-mix(in oklab, var(--surface) 95%, transparent); border-color: var(--edge-strong); }
.contact .ct-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); display: block; }
.contact .ct-val { font-family: var(--font-body); font-size: 14px; }
.contact-icon {
  width: 34px; height: 34px; border-radius: 10px;
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  color: var(--accent-ink);
  display: inline-flex; align-items: center; justify-content: center;
}

/* ---------- Footer ---------- */
footer.foot {
  margin-top: 36px;
  display: flex;
  justify-content: space-between;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  z-index: 100;
  background: var(--scrim);
  display: grid; place-items: center;
  padding: 30px;
  animation: fade-in .2s ease-out;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity .2s, visibility .2s;
}
.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}
.modal {
  width: min(760px, 100%);
  max-height: 86vh;
  overflow-y: auto;
  position: relative;
  background: var(--surface);
  border: 1px solid var(--edge);
  box-shadow: var(--tile-shadow), 0 40px 80px -20px rgba(20,40,90,0.4);
  border-radius: calc(var(--tile-r) + 4px);
  padding: 28px 32px 32px;
  transform: scale(.96) translateY(6px);
  transition: transform .25s cubic-bezier(.2,.9,.3,1.1);
}
.modal-overlay.is-open .modal {
  transform: none;
}
.modal-close { position: absolute; top: 14px; right: 14px; }
.modal header { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.modal h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 28px;
  margin: 14px 0 8px;
  color: var(--ink);
}
.modal .mbody { color: var(--ink-muted); font-size: 15px; line-height: 1.6; }
.modal .mbody h4 { color: var(--ink); font-family: var(--font-display); margin-top: 22px; font-size: 15px; letter-spacing: 0.02em; text-transform: uppercase; font-weight: 600; }
.modal .mbody ul { padding-left: 18px; }
.modal .mbody li { margin: 4px 0; }
.modal .modal-ph {
  height: 180px;
  border-radius: 16px;
  margin-top: 12px;
  background:
    repeating-linear-gradient(135deg,
      color-mix(in oklab, var(--accent) 25%, transparent) 0 6px,
      transparent 6px 14px),
    linear-gradient(180deg,
      color-mix(in oklab, var(--accent-soft) 35%, var(--surface)),
      color-mix(in oklab, var(--accent) 10%, var(--surface)));
  border: 1px dashed color-mix(in oklab, var(--accent) 35%, transparent);
  display: grid; place-items: center;
}

@keyframes fade-in { from { opacity: 0 } to { opacity: 1 } }

/* ---------- NDA card ---------- */
.nda-card {
  position: relative;
  padding: 30px 36px 30px;
  overflow: hidden;
  isolation: isolate;
}
.nda-card__glow {
  position: absolute;
  inset: -30% -10% auto auto;
  width: 70%;
  aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 38%, transparent), transparent 62%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.9;
}
.nda-card > *:not(.nda-card__glow) { position: relative; z-index: 1; }

.nda-card__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  color: white;
  max-width: 18ch;
  text-wrap: balance;
}
.nda-card__lead {
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.55;
  color: color-mix(in oklab, white 72%, transparent);
  max-width: 60ch;
  text-wrap: pretty;
}

.nda-card__chips {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.nda-card__chip {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px 16px;
  border-radius: 14px;
  background: color-mix(in oklab, white 4%, transparent);
  border: 1px solid color-mix(in oklab, white 8%, transparent);
  transition: background .25s, border-color .25s, transform .25s;
}
.nda-card__chip:hover {
  background: color-mix(in oklab, white 7%, transparent);
  border-color: color-mix(in oklab, var(--accent) 45%, transparent);
  transform: translateY(-2px);
}
.nda-card__chip-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: color-mix(in oklab, var(--accent-soft) 80%, white);
  font-variant-numeric: tabular-nums;
}
.nda-card__chip-text {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  color: color-mix(in oklab, white 88%, transparent);
}

.nda-card__foot {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nda-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 999px;
  background: white;
  /* Fixed dark text: the pill is always white on the dark NDA card, so the
     label must not follow --ink (which flips to near-white in dark theme). */
  color: #0e1524;
  border: 1px solid white;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 14px 30px -16px rgba(0, 0, 0, 0.5);
  transition: transform .2s, box-shadow .25s;
}
.nda-card__cta:hover {
  transform: translateY(-1px);
  box-shadow:
    0 18px 40px -16px rgba(0, 0, 0, 0.6),
    0 0 0 5px color-mix(in oklab, var(--accent) 28%, transparent);
}

@media (max-width: 720px) {
  .nda-card { padding: 24px 22px; }
  .nda-card__title { font-size: 26px; }
  .nda-card__chips { grid-template-columns: 1fr; }
}

/* ---------- Form (NDA modal) ---------- */
.form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}
.form-row--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-field {
  display: grid;
  gap: 6px;
}
.form-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.form-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 10px 14px;
  transition: border-color .18s, background .18s, box-shadow .18s;
}
.form-input:hover { border-color: var(--edge-strong); }
.form-input:focus {
  outline: none;
  border-color: color-mix(in oklab, var(--accent) 60%, var(--edge));
  background: var(--surface);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, transparent);
}
.form-textarea {
  resize: vertical;
  min-height: 96px;
  line-height: 1.5;
}
.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

@media (max-width: 720px) {
  .nda-grid { grid-template-columns: 1fr; gap: 18px; }
  .form-row--split { grid-template-columns: 1fr; }
}

/* ---------- Tweaks panel ---------- */
.tweak-panel {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 80;
  width: 280px;
  padding: 16px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--edge);
  box-shadow: var(--tile-shadow);
  display: none;
}
.tweak-panel.is-visible { display: block; }
.tweak-panel h4 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  display: flex; justify-content: space-between; align-items: center;
}
.tweak-panel h4 span { font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft); letter-spacing: 0.08em; text-transform: uppercase; }
.tweak-row { margin-top: 10px; }
.tweak-row label {
  display: flex; justify-content: space-between;
  font-size: 12px;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.tweak-row label b { color: var(--ink); font-weight: 500; }
.tweak-row input[type=range] { width: 100%; accent-color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .statsbar { grid-template-columns: repeat(2, 1fr); row-gap: 18px; }
  .statsbar__cell:nth-child(3) { border-left: 0; padding-left: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .hero-stage { padding: 44px 28px 56px; min-height: 460px; }
  .hero-float--card { width: 240px; right: 2%; bottom: 4%; }
  .hero-float--pill { right: 8%; bottom: 38%; }
  .a-proj, .a-stack, .a-blog, .a-exp, .a-contact { grid-column: 1 / -1; }
  .topbar--3seg { grid-template-columns: auto 1fr auto; }
  .topbar--3seg nav { display: none; }
  .tb-seg--center { display: none; }
  .topbar--3seg { grid-template-columns: 1fr auto; }
}
@media (max-width: 720px) {
  .hero-float--card { display: none; }
  .hero-float--pill {
    position: static;
    margin-top: 24px;
    transform: rotate(0) translateY(18px) scale(.96);
  }
  .hero-stage.is-ready .hero-float--pill {
    transform: rotate(0) translateY(0) scale(1);
    animation: none;
  }
}
@media (max-width: 560px) {
  .shell { padding: 16px 16px 80px; }
  .hero { margin-top: 12px; }
  .hero-stage { padding: 28px 4px 24px; min-height: auto; }
  .statsbar { grid-template-columns: 1fr; }
  .statsbar__cell { border-left: 0; padding-left: 0; border-top: 1px solid var(--edge); padding-top: 16px; }
  .statsbar__cell:first-child { border-top: 0; padding-top: 0; }
  .stats-grid { grid-template-columns: 1fr; }
  .contacts { grid-template-columns: 1fr; }
  .tweak-panel { right: 10px; bottom: 10px; left: 10px; width: auto; }
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition: none !important; } }

}