/* ============================================================
   thetechgeekko.github.io — spectral edition
   Dark mono + bento + grain + chromatic + λ.
   ============================================================ */

/* ---------- tokens ---------- */
:root {
  --bg:           #08080a;
  --bg-elev:      #111114;
  --bg-elev-2:    #16161b;
  --line:         #22222a;
  --line-strong:  #2e2e38;
  --fg:           #f4e9d8;
  --fg-dim:       #a59c8e;
  --fg-mute:      #6e675c;
  --accent:       #f4e9d8;

  /* spectral palette — wavelength approximations */
  --s-violet: #a45dff;
  --s-blue:   #6ab7ff;
  --s-cyan:   #58e7d8;
  --s-green:  #5eda86;
  --s-yellow: #f4e555;
  --s-orange: #ff9a3a;
  --s-red:    #ff3a3a;
  --hot:      var(--s-red);
  --cool:     var(--s-blue);
  --green:    var(--s-green);

  --rainbow: linear-gradient(90deg,
    #a45dff  0%,
    #6c63ff 10%,
    #6ab7ff 22%,
    #58e7d8 36%,
    #5eda86 48%,
    #c3e64a 62%,
    #f4e555 70%,
    #ff9a3a 82%,
    #ff5b3a 92%,
    #ff3a3a 100%);

  --radius:       18px;
  --radius-sm:    10px;
  --grain-opacity: .04;
  --maxw:         1280px;
  --pad:          clamp(20px, 4vw, 56px);
  --t-fast:       180ms cubic-bezier(.2,.7,.2,1);
  --t-base:       340ms cubic-bezier(.2,.7,.2,1);
  --t-slow:       700ms cubic-bezier(.2,.7,.2,1);
}
[data-theme="light"] {
  --bg:           #f5efe1;
  --bg-elev:      #ece5d3;
  --bg-elev-2:    #e1d9c3;
  --line:         #d6cbae;
  --line-strong:  #c5b993;
  --fg:           #161210;
  --fg-dim:       #5d564a;
  --fg-mute:      #8c8472;
  --accent:       #161210;
  --grain-opacity: .06;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  cursor: none;
  position: relative;
}
@media (max-width: 768px) { body { cursor: auto; } }
img, svg, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input { font: inherit; }
em { font-family: 'Instrument Serif', 'Times New Roman', serif; font-style: italic; font-weight: 400; letter-spacing: -.01em; }
strong { font-weight: 700; color: var(--fg); }
.muted { color: var(--fg-mute); }
::selection { background: var(--s-yellow); color: var(--bg); }

/* ---------- ambient aurora ---------- */
.aurora {
  position: fixed; inset: -10%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(50% 38% at 12% 8%,  rgba(164,93,255,.16), transparent 70%),
    radial-gradient(40% 30% at 92% 18%, rgba(255,58,58,.12),  transparent 70%),
    radial-gradient(55% 40% at 50% 96%, rgba(106,183,255,.14),transparent 75%),
    radial-gradient(35% 28% at 85% 78%, rgba(94,218,134,.10), transparent 75%);
  filter: blur(40px) saturate(110%);
  animation: aurora-drift 28s ease-in-out infinite alternate;
}
[data-theme="light"] .aurora { opacity: .55; }
@keyframes aurora-drift {
  0%   { transform: translate3d(0,0,0) scale(1); }
  50%  { transform: translate3d(2%, -1%, 0) scale(1.04); }
  100% { transform: translate3d(-2%, 2%, 0) scale(1.02); }
}

/* ---------- grain ---------- */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 1 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 240px 240px;
  mix-blend-mode: overlay;
}
[data-theme="light"] .grain { mix-blend-mode: multiply; }

/* ---------- chromatic cursor ---------- */
.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 14px; height: 14px;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width var(--t-fast), height var(--t-fast);
  mix-blend-mode: screen;
}
.cursor span {
  position: absolute; inset: 0;
  border-radius: 50%;
  opacity: .85;
  filter: blur(.3px);
}
.cursor-r { background: #ff3a3a; transform: translate(-2px, 0); }
.cursor-g { background: #5eda86; transform: translate(0, 0); }
.cursor-b { background: #6ab7ff; transform: translate(2px, 0); }
.cursor.is-link  { width: 30px; height: 30px; }
.cursor.is-zoom  { width: 44px; height: 44px; }
.cursor.is-open  { width: 60px; height: 60px; }
.cursor.is-open::after {
  content: "↗"; position: absolute; inset: 0;
  color: var(--fg); display: grid; place-items: center;
  font-size: 18px; font-weight: 700;
  mix-blend-mode: difference;
}
@media (max-width: 768px) { .cursor { display: none; } }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0;
  z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 16px var(--pad);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(140%) blur(16px);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--rainbow);
  opacity: .35;
  filter: blur(.3px);
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: -.01em;
}
.logo-mark {
  width: 22px; height: 22px;
  filter: drop-shadow(0 0 8px rgba(255,154,58,.35));
  animation: prism-spin 26s linear infinite;
}
@keyframes prism-spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.logo-text { font-size: 13.5px; }
.nav-links { display: flex; gap: 24px; font-size: 13px; color: var(--fg-dim); }
.nav-links a { position: relative; padding: 4px 0; transition: color var(--t-fast); }
.nav-links a:hover { color: var(--fg); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--rainbow);
  transition: width var(--t-base);
}
.nav-links a:hover::after { width: 100%; }
@media (max-width: 720px) { .nav-links { gap: 16px; font-size: 12px; } }
@media (max-width: 520px) { .nav-links { display: none; } }
.theme-toggle {
  width: 38px; height: 22px; border-radius: 999px;
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  position: relative;
  transition: background var(--t-fast);
}
.theme-toggle-dot {
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--fg);
  transition: transform var(--t-base);
}
[data-theme="light"] .theme-toggle-dot { transform: translateX(16px); }

/* ---------- layout primitives ---------- */
main { display: block; position: relative; }
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(80px, 12vw, 160px) var(--pad);
  border-top: 1px solid var(--line);
  position: relative;
}
.section::before {
  content: ""; position: absolute; top: -1px; left: var(--pad); right: var(--pad);
  height: 1px;
  background: var(--rainbow);
  opacity: .12;
}
.section-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: end;
  gap: 24px;
  margin-bottom: 56px;
}
.section-num {
  font-size: 12px; color: var(--fg-mute);
  letter-spacing: .12em; text-transform: uppercase;
  font-feature-settings: "tnum";
}
.section-title {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -.02em;
  margin: 0;
}
.section-meta {
  font-size: 12px; color: var(--fg-mute);
  text-align: right;
}

/* ---------- hero ---------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(60px, 12vw, 140px) var(--pad) clamp(60px, 9vw, 110px);
  position: relative;
}
.hero-meta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px; color: var(--fg-dim);
  margin-bottom: 40px;
  background: color-mix(in srgb, var(--bg-elev) 50%, transparent);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--s-green);
  box-shadow: 0 0 10px var(--s-green);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(.82); opacity: .58; }
}
.hero-title {
  font-family: 'Instrument Serif', 'Times New Roman', serif;
  font-weight: 400;
  font-size: clamp(48px, 11vw, 168px);
  line-height: .92;
  letter-spacing: -.035em;
  margin: 0 0 32px;
  position: relative;
}
.hero-title .word {
  display: inline-block;
  margin-right: .22em;
  opacity: 0;
  transform: translateY(40px) rotate(2deg);
  animation: word-in .9s cubic-bezier(.2,.7,.2,1) forwards;
}
.hero-title .word:nth-child(2) em,
.hero-title .word:nth-child(7) em {
  background: var(--rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow:
    -1px 0 0 rgba(255,58,58,.25),
     1px 0 0 rgba(106,183,255,.25);
}
.hero-title .word:nth-child(1) { animation-delay: .05s; }
.hero-title .word:nth-child(2) { animation-delay: .14s; }
.hero-title .word:nth-child(3) { animation-delay: .23s; }
.hero-title .word:nth-child(4) { animation-delay: .32s; }
.hero-title .word:nth-child(5) { animation-delay: .41s; }
.hero-title .word:nth-child(6) { animation-delay: .50s; }
.hero-title .word:nth-child(7) { animation-delay: .59s; }
@keyframes word-in {
  to { opacity: 1; transform: translateY(0) rotate(0); }
}
.hero-sub {
  max-width: 640px;
  font-size: clamp(15px, 1.4vw, 19px);
  color: var(--fg-dim);
  line-height: 1.6;
  margin: 0 0 56px;
}
.hero-sub a {
  border-bottom: 1px solid var(--fg-mute);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.hero-sub a:hover { color: var(--fg); border-bottom-color: var(--s-orange); }
.hero-scroll {
  display: flex; align-items: center; gap: 14px;
  font-size: 11px; color: var(--fg-mute);
  letter-spacing: .14em; text-transform: uppercase;
  margin-bottom: 40px;
}
.scroll-line {
  display: inline-block; height: 1px; width: 48px;
  background: var(--fg-mute);
  position: relative; overflow: hidden;
}
.scroll-line::after {
  content: ""; position: absolute; inset: 0;
  background: var(--rainbow);
  transform: translateX(-100%);
  animation: scroll-line 2.4s ease-in-out infinite;
}
@keyframes scroll-line {
  0%   { transform: translateX(-100%); }
  60%  { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

/* ---------- spectrum bar (hero) ---------- */
.spectrum-bar {
  position: relative;
  margin-top: 8px;
  padding: 16px 0 8px;
  user-select: none;
}
.spectrum-gradient {
  height: 10px;
  border-radius: 999px;
  background: var(--rainbow);
  filter: saturate(115%);
  box-shadow:
    0 0 24px rgba(255,154,58,.18),
    0 0 36px rgba(106,183,255,.12);
}
.spectrum-ticks {
  display: flex; justify-content: space-between;
  list-style: none; margin: 8px 0 0; padding: 0;
  font-size: 10px; color: var(--fg-mute);
  letter-spacing: .08em;
}
.spectrum-ticks li {
  display: flex; flex-direction: column; align-items: center;
  gap: 4px;
  font-feature-settings: "tnum";
}
.spectrum-ticks i {
  width: 1px; height: 6px;
  background: var(--fg-mute);
  display: block;
}
.spectrum-label {
  display: flex; justify-content: space-between;
  margin-top: 14px;
  font-size: 11px; color: var(--fg-mute);
  letter-spacing: .12em; text-transform: uppercase;
}
.spectrum-label .lbl-val { color: var(--fg); }
.spectrum-cursor {
  position: absolute;
  top: 14px;
  left: 36%;
  width: 2px; height: 14px;
  background: var(--fg);
  box-shadow: 0 0 12px var(--fg);
  pointer-events: none;
  transition: left .3s cubic-bezier(.2,.7,.2,1);
}

/* ---------- ticker ---------- */
.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 18px 0;
  background: var(--bg-elev);
  user-select: none;
}
.ticker-track {
  display: flex; gap: 28px; align-items: center;
  white-space: nowrap;
  font-size: 13px; color: var(--fg-dim);
  letter-spacing: .04em;
  animation: ticker 42s linear infinite;
  width: max-content;
}
.tk-dot {
  display: inline-block;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--fg-mute);
  box-shadow: 0 0 8px currentColor;
}
.tk-r { background: var(--s-red);    color: var(--s-red); }
.tk-o { background: var(--s-orange); color: var(--s-orange); }
.tk-y { background: var(--s-yellow); color: var(--s-yellow); }
.tk-g { background: var(--s-green);  color: var(--s-green); }
.tk-c { background: var(--s-cyan);   color: var(--s-cyan); }
.tk-b { background: var(--s-blue);   color: var(--s-blue); }
.tk-v { background: var(--s-violet); color: var(--s-violet); }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 180px;
  gap: 14px;
}
.bento-card {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 24px;
  overflow: hidden;
  transition: transform var(--t-base), border-color var(--t-base);
  display: flex; flex-direction: column; justify-content: space-between;
  isolation: isolate;
}
.bento-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
.bento-card::after {
  content: ""; position: absolute; inset: -1px;
  border-radius: var(--radius);
  background: radial-gradient(360px 240px at var(--mx,50%) var(--my,50%),
              rgba(244,233,216,.10), transparent 60%);
  opacity: 0; transition: opacity var(--t-base);
  pointer-events: none; z-index: -1;
}
.bento-card:hover::after { opacity: 1; }

.bento-lg { grid-column: span 4; grid-row: span 2; }
.bento-md { grid-column: span 3; grid-row: span 1; }
.bento-sm { grid-column: span 2; grid-row: span 1; }
@media (max-width: 960px) {
  .bento { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 160px; }
  .bento-lg { grid-column: span 4; grid-row: span 2; }
  .bento-md { grid-column: span 4; }
  .bento-sm { grid-column: span 2; }
}
@media (max-width: 560px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento-lg, .bento-md, .bento-sm { grid-column: span 2; }
}

.bento-tag {
  font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--fg-mute);
  display: inline-flex; align-items: center; gap: 6px;
}
.bento-tag::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--s-orange);
  box-shadow: 0 0 6px currentColor;
}
.bento-title {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: .96; margin: 12px 0 14px;
  letter-spacing: -.02em;
}
.bento-title-sm {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1;
  margin: 8px 0 0;
  letter-spacing: -.015em;
}
.bento-desc { font-size: 14px; color: var(--fg-dim); margin: 0; }
.bento-foot {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--fg-mute);
  margin-top: auto;
}
.bento-arrow { font-size: 18px; color: var(--fg); transition: transform var(--t-base); }
.bento-arrow.lg { font-size: 42px; }
.bento-card:hover .bento-arrow { transform: translate(4px, -4px); }
.bento-bg {
  position: absolute; inset: 0;
  z-index: -1;
  opacity: .42;
  pointer-events: none;
}
.bento-bg-1 {
  background:
    radial-gradient(600px 320px at 110% 110%, rgba(255,91,58,.28), transparent 60%),
    radial-gradient(500px 280px at -10% -10%, rgba(106,183,255,.22), transparent 60%),
    radial-gradient(420px 240px at 50% 100%, rgba(164,93,255,.18), transparent 60%);
}
.bento-stat .bento-title { color: var(--fg); }
.bento-num { align-items: flex-start; }
.bento-num-big {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(60px, 8vw, 96px);
  line-height: 1; margin-top: 4px;
  letter-spacing: -.04em;
  background: var(--rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.bento-num-label {
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--fg-mute);
  margin-top: 8px;
}
.bento-tools .tools {
  list-style: none; margin: 12px 0 0; padding: 0;
  font-size: 13px; color: var(--fg-dim);
  display: grid; gap: 4px;
}
.bento-tools .tools li {
  position: relative; padding-left: 14px;
}
.bento-tools .tools li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 6px; height: 1px; background: var(--s-cyan);
}
.bento-now-desc { font-size: 12px; color: var(--fg-mute); margin: 6px 0 0; }
.bento-link { align-items: flex-start; }
.bento-link .bento-arrow.lg { align-self: flex-end; }

/* flagship card spectral border */
.bento-lg {
  position: relative;
}
.bento-lg::before {
  content: ""; position: absolute; inset: -1px;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--rainbow);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0; transition: opacity var(--t-base);
  pointer-events: none;
}
.bento-lg:hover::before { opacity: .7; }

/* ---------- spectrum lab ---------- */
.section-spectrum { background: var(--bg); }
.spectrum-intro {
  max-width: 640px; color: var(--fg-dim);
  font-size: 14.5px;
  margin: -28px 0 36px;
}
.spec-lab {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 18px;
}
@media (max-width: 960px) { .spec-lab { grid-template-columns: 1fr; } }
.spec-panel {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  display: flex; flex-direction: column; gap: 22px;
  position: relative;
}
.spec-slider-wrap {
  position: relative;
  padding: 24px 0 26px;
}
.spec-rainbow {
  height: 16px;
  border-radius: 999px;
  background: var(--rainbow);
  filter: saturate(115%);
  box-shadow:
    0 0 24px rgba(255,154,58,.18),
    0 0 36px rgba(106,183,255,.12);
}
.spec-slider {
  position: absolute;
  left: 0; right: 0;
  top: 12px;
  width: 100%; height: 40px;
  background: transparent;
  appearance: none; -webkit-appearance: none;
  cursor: ew-resize;
  margin: 0; padding: 0;
  outline: none;
}
.spec-slider::-webkit-slider-runnable-track { background: transparent; height: 40px; }
.spec-slider::-moz-range-track { background: transparent; height: 40px; }
.spec-slider::-webkit-slider-thumb {
  appearance: none; -webkit-appearance: none;
  width: 24px; height: 40px;
  background: transparent;
  cursor: ew-resize;
}
.spec-slider::-moz-range-thumb {
  width: 24px; height: 40px;
  background: transparent;
  border: 0;
  cursor: ew-resize;
}
.spec-thumb {
  position: absolute;
  top: 18px;
  left: calc(43.75% - 6px); /* 555nm default */
  width: 4px; height: 24px;
  background: var(--fg);
  border-radius: 2px;
  box-shadow:
    -2px 0 0 rgba(255,58,58,.6),
     2px 0 0 rgba(106,183,255,.6),
    0 0 18px rgba(244,233,216,.8);
  pointer-events: none;
  transition: left 80ms linear;
}
.spec-axis {
  list-style: none; margin: 14px 0 0; padding: 0;
  position: relative; height: 14px;
}
.spec-axis li {
  position: absolute; transform: translateX(-50%);
  font-size: 10px; color: var(--fg-mute);
  letter-spacing: .08em;
  font-feature-settings: "tnum";
}
.spec-axis li::before {
  content: ""; position: absolute;
  top: -8px; left: 50%; transform: translateX(-50%);
  width: 1px; height: 5px; background: var(--fg-mute);
}
.spec-axis li:last-child { transform: translateX(-100%); }
.spec-axis li:first-child { transform: translateX(0); }

.spec-readout {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
  font-size: 13px;
  position: relative;
}
.spec-row {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.spec-row:last-of-type { border-bottom: 0; }
.spec-key {
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--fg-mute);
}
.spec-val { color: var(--fg); font-feature-settings: "tnum"; }
.spec-swatch {
  grid-column: 1 / -1;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--s-green);
  border: 1px solid var(--line);
  transition: background var(--t-fast);
  box-shadow: inset 0 0 30px rgba(0,0,0,.25);
}

.spec-curves-head {
  display: flex; flex-direction: column; gap: 12px;
}
.spec-curves-title {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: 24px;
  margin: 0;
  letter-spacing: -.01em;
}
.spec-legend { display: flex; flex-wrap: wrap; gap: 6px; }
.lg-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: .04em;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.lg-pill i { width: 8px; height: 8px; border-radius: 50%; box-shadow: 0 0 8px currentColor; }
.lg-pill.is-on { color: var(--fg); border-color: var(--line-strong); background: var(--bg-elev-2); }
.spec-canvas-wrap {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 8 / 4;
  background: var(--bg-elev-2);
}
.spec-canvas-wrap canvas { width: 100%; height: 100%; display: block; }
.spec-foot { margin: 0; font-size: 10.5px; color: var(--fg-mute); letter-spacing: .04em; }

/* ---------- arcade ---------- */
.section-arcade { background: var(--bg); }
.arcade-intro {
  max-width: 640px; color: var(--fg-dim);
  font-size: 14px; margin: -32px 0 32px;
}
.arcade-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 1024px) { .arcade-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px)  { .arcade-grid { grid-template-columns: 1fr; } }

.game-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  display: flex; flex-direction: column; gap: 14px;
  transition: border-color var(--t-base);
}
.game-card:hover { border-color: var(--line-strong); }
.game-head { display: flex; align-items: baseline; gap: 14px; }
.game-num {
  font-size: 10px; letter-spacing: .16em;
  color: var(--fg-mute); text-transform: uppercase;
  font-feature-settings: "tnum";
}
.game-title {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: 26px; margin: 0;
  letter-spacing: -.015em;
}
.game-desc { font-size: 12.5px; color: var(--fg-dim); margin: 0; min-height: 36px; }
.game-canvas-wrap {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 15 / 8;
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
}
.game-canvas-wrap canvas {
  width: 100%; height: 100%;
  display: block;
}
.game-overlay {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: opacity var(--t-base);
  z-index: 2;
}
.game-overlay.is-hidden { opacity: 0; pointer-events: none; }
.game-start {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  font-size: 13px; letter-spacing: .04em;
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast);
  position: relative;
}
.game-start::before {
  content: ""; position: absolute; inset: -1px;
  border-radius: 999px;
  background: var(--rainbow);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  padding: 1px;
  opacity: 0; transition: opacity var(--t-base);
}
.game-start:hover { background: var(--fg); color: var(--bg); transform: scale(1.03); }
.game-start:hover::before { opacity: .9; }
.game-hud {
  display: flex; flex-wrap: wrap; gap: 16px;
  align-items: center;
  font-size: 11px; color: var(--fg-mute);
  letter-spacing: .08em; text-transform: uppercase;
}
.game-hud b { color: var(--fg); font-weight: 700; font-feature-settings: "tnum"; }
.memory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px;
  aspect-ratio: 15 / 8;
}
.memory-cell {
  position: relative;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-family: 'Instrument Serif', serif;
  font-size: 13px;
  display: grid; place-items: center;
  color: transparent;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
  text-align: center;
  padding: 4px;
}
.memory-cell::before {
  content: "λ";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--fg-mute);
  font-family: 'Instrument Serif', serif;
  font-size: 18px; font-style: italic;
  transition: opacity var(--t-fast);
}
.memory-cell.is-flipped { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.memory-cell.is-flipped::before { opacity: 0; }
.memory-cell.is-matched {
  background: var(--bg-elev); color: var(--fg);
  border-color: var(--s-green);
  box-shadow: 0 0 10px rgba(94,218,134,.25);
  pointer-events: none;
}
.memory-cell.is-matched::before { opacity: 0; }
.memory-reset {
  margin-left: auto;
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--fg-dim);
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.memory-reset:hover { color: var(--fg); border-color: var(--line-strong); }

/* ---------- about ---------- */
.section-about { background: var(--bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
}
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }
.about-text p { color: var(--fg-dim); font-size: 15px; margin: 0 0 18px; }
.about-text strong { color: var(--fg); }
.about-text a {
  border-bottom: 1px solid var(--fg-mute);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.about-text a:hover { color: var(--fg); border-bottom-color: var(--s-orange); }
.about-lead {
  font-family: 'Instrument Serif', serif !important;
  font-size: clamp(22px, 2.6vw, 30px) !important;
  color: var(--fg) !important;
  line-height: 1.25 !important;
  margin-bottom: 28px !important;
  letter-spacing: -.01em;
}
.about-aside {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--bg-elev);
  align-self: start;
}
.facts { margin: 0; padding: 0; display: grid; gap: 14px; }
.facts > div {
  display: grid; grid-template-columns: 120px 1fr;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.facts > div:last-child { border-bottom: 0; padding-bottom: 0; }
.facts dt {
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--fg-mute);
}
.facts dd { margin: 0; font-size: 14px; color: var(--fg); }

/* ---------- contact ---------- */
.contact-cta { margin-bottom: 64px; }
.contact-title {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  font-size: clamp(48px, 8vw, 110px);
  line-height: .95;
  letter-spacing: -.025em;
  margin: 0 0 40px;
  display: grid; gap: 4px;
}
.contact-title span { display: block; }
.contact-title em {
  background: var(--rainbow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.mailto {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: clamp(18px, 2vw, 22px);
  padding: 14px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
  position: relative;
}
.mailto::before {
  content: ""; position: absolute; inset: -1px;
  border-radius: 999px;
  background: var(--rainbow);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  padding: 1px;
  opacity: 0; transition: opacity var(--t-base);
}
.mailto:hover { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.mailto:hover::before { opacity: 0; }
.mailto:hover .bento-arrow { color: var(--bg); }

.links {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
@media (max-width: 720px) { .links { grid-template-columns: 1fr 1fr; } }
@media (max-width: 420px) { .links { grid-template-columns: 1fr; } }
.links li {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.links a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px 24px;
  font-size: clamp(16px, 1.7vw, 22px);
  transition: background var(--t-fast), color var(--t-fast), padding var(--t-fast);
  position: relative; overflow: hidden;
}
.links a::before {
  content: ""; position: absolute; inset: 0;
  background: var(--rainbow);
  transform: translateY(100%);
  transition: transform var(--t-base);
  z-index: 0;
}
.links a:hover { color: var(--bg); padding-left: 36px; }
.links a:hover::before { transform: translateY(0); }
.links a > * { position: relative; z-index: 1; }
.link-arr { font-size: 14px; color: var(--fg-mute); transition: color var(--t-fast); }
.links a:hover .link-arr { color: var(--bg); }

/* ---------- footer ---------- */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px var(--pad) 48px;
  border-top: 1px solid var(--line);
  font-size: 12px; color: var(--fg-mute);
  position: relative;
}
.footer::before {
  content: ""; position: absolute; top: -1px; left: var(--pad); right: var(--pad);
  height: 1px;
  background: var(--rainbow);
  opacity: .25;
}
.footer-row {
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer a { border-bottom: 1px dashed var(--fg-mute); }
.footer a:hover { color: var(--fg); border-color: var(--s-orange); }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .hero-title .word { opacity: 1; transform: none; }
  .aurora { animation: none; }
  .logo-mark { animation: none; }
}