/* =========================================================
   TuringViT · Promo Site
   Theme: deep cosmic dark + cyan/magenta neon + glassmorphism
   ========================================================= */

:root {
  --bg-0: #05070d;
  --bg-1: #0a0d18;
  --bg-2: #11162a;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text: #e6ecff;
  --text-2: #aab3cf;
  --text-3: #6c7393;
  --muted: #8b94b3;

  /* XPeng-inspired green palette */
  --xp-green: #00ff7a;       /* primary */
  --xp-green-2: #14e887;     /* secondary */
  --xp-green-deep: #00b85a;  /* deep */
  --mint: #5eead4;           /* accent / cooler tone */
  --warm: #ffb86b;            /* baseline contrast (Vanilla ViT) */

  /* keep legacy names mapped to new palette so existing rules still work */
  --cyan: var(--xp-green);
  --cyan-2: var(--mint);
  --magenta: var(--xp-green-2);
  --pink: var(--xp-green-deep);
  --gold: #ffd166;
  --green: var(--xp-green);

  --grad: linear-gradient(135deg, #5eead4 0%, #14e887 45%, #00ff7a 100%);
  --grad-soft: linear-gradient(135deg, rgba(94,234,212,.16), rgba(0,255,122,.18));

  --font-sans: "Inter", "Space Grotesk", system-ui, -apple-system, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  --maxw: 1240px;
  --pad: clamp(20px, 4vw, 64px);
  --r-lg: 22px;
  --r-md: 14px;
  --r-sm: 10px;

  --shadow-1: 0 10px 30px rgba(0,0,0,.45);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg-0); color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
em { font-style: normal; color: var(--cyan); }
b, strong { color: #fff; font-weight: 600; }
::selection { background: rgba(0,255,122,.3); color: #fff; }

/* ===== Background Layers (low-GPU) ===== */
.bg-canvas { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,255,122,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,122,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 80%);
}

/* Static green ambient halos (no blur, no mix-blend-mode -> very cheap).
   Two big radial gradients painted directly on the layer. */
.bg-glow {
  position: fixed; z-index: 0; pointer-events: none;
  inset: 0;
  background: transparent;
}
.glow-a {
  background:
    radial-gradient(60vmax 50vmax at 8% 0%,
      rgba(0, 255, 122, 0.18), transparent 60%);
}
.glow-b {
  background:
    radial-gradient(55vmax 45vmax at 92% 100%,
      rgba(94, 234, 212, 0.14), transparent 60%);
}

.bg-noise { display: none; }

.nav, .hero, .section, .footer { position: relative; z-index: 2; }

/* ===== Glass (no backdrop blur for perf; rely on translucent bg only) ===== */
.glass {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
}

/* ===== Nav ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(8,10,20,.85);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
body { padding-top: 64px; }
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 14px var(--pad);
  display: flex; align-items: center; gap: 28px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700; letter-spacing: .2px; font-size: 18px;
}
.brand-mark { display: inline-flex; }
.brand-logo {
  height: 18px; width: auto;
  filter: invert(1);
}
.brand-text { color: #fff; }
.brand-accent {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nav-links {
  display: flex; gap: 22px;
  margin-left: 12px;
  font-size: 14px; color: var(--text-2);
}
.nav-links a { position: relative; padding: 6px 2px; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--grad); transform: scaleX(0);
  transform-origin: left; transition: transform .25s ease;
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta { margin-left: auto; display: flex; gap: 10px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 999px;
  font-size: 14px; font-weight: 500;
  border: 1px solid var(--border-strong);
  background: var(--surface); color: #fff;
  transition: transform .2s, background .2s, box-shadow .2s, border-color .2s;
  cursor: pointer; font-family: var(--font-sans);
}
.btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,.3); }
.btn.lg { padding: 14px 22px; font-size: 15px; }
.btn.sm { padding: 6px 12px; font-size: 12px; }
.btn-primary {
  background: var(--grad); color: #0a0d18; border-color: transparent;
  box-shadow: 0 6px 20px rgba(0,255,122,.25), 0 6px 30px rgba(94,234,212,.18);
}
.btn-primary:hover {
  box-shadow: 0 10px 40px rgba(0,255,122,.4), 0 10px 50px rgba(94,234,212,.3);
}
.btn-ghost { background: rgba(255,255,255,.04); color: var(--text); }

/* ===== Hero ===== */
.hero {
  min-height: 92vh;
  padding: clamp(60px,10vh,120px) var(--pad) 80px;
  max-width: var(--maxw); margin: 0 auto;
  display: flex; flex-direction: column; justify-content: center;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; align-self: flex-start;
  border: 1px solid var(--border-strong); border-radius: 999px;
  background: var(--surface);
  font-size: 12.5px; color: var(--text-2);
  letter-spacing: .3px;
}
.hero-tag .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 10px var(--cyan);
  animation: pulse 1.8s infinite;
}
@keyframes pulse { 50% { opacity: .35; transform: scale(.8); } }

.hero-title { margin: 22px 0 18px; font-family: var(--font-display);
  font-weight: 700; letter-spacing: -0.03em; line-height: 0.95; }
.hero-line { display: block; font-size: clamp(56px, 11vw, 168px); }
.hero-vit {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 30px rgba(94,234,212,.3));
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  display: block; font-size: clamp(18px, 2.6vw, 34px);
  font-weight: 500; margin-top: 10px;
  color: var(--text-2); letter-spacing: -0.01em;
}
.hero-sub em { color: var(--cyan); }
.hero-lede {
  max-width: 720px; margin: 22px 0 36px;
  font-size: clamp(15px, 1.4vw, 18px);
  color: var(--text-2); line-height: 1.7;
}
.hero-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px; margin: 12px 0 36px; max-width: 760px;
}
.stat {
  padding: 18px; border-radius: var(--r-md);
  border: 1px solid var(--border); background: var(--surface);
}
.stat-num {
  display: block; font-family: var(--font-display);
  font-weight: 700; font-size: clamp(22px, 2.8vw, 34px);
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.stat-lbl {
  display: block; font-size: 12px; color: var(--text-3);
  margin-top: 4px; letter-spacing: .3px; text-transform: uppercase;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-scroll {
  position: absolute; bottom: 28px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-size: 11px; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 2px;
}
.scroll-bar { width: 1px; height: 36px; background: rgba(255,255,255,.15); position: relative; overflow: hidden; }
.scroll-bar i {
  position: absolute; top: -36px; left: 0; right: 0;
  height: 18px; background: linear-gradient(to bottom, transparent, var(--cyan));
  animation: scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollDot { to { top: 100%; } }

.float-chips { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.chip {
  position: absolute; left: var(--x); top: var(--y);
  padding: 6px 12px; font-family: var(--font-mono);
  font-size: 11.5px; color: var(--text-2);
  border: 1px solid var(--border-strong); border-radius: 999px;
  background: rgba(10,13,24,.55); backdrop-filter: blur(8px);
  animation: chipFloat 8s ease-in-out infinite;
  animation-delay: var(--d);
}
@keyframes chipFloat {
  0%,100% { transform: translateY(0); opacity: .85; }
  50% { transform: translateY(-12px); opacity: 1; }
}

/* ===== Section / Heading ===== */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) var(--pad);
}
.section-head { max-width: 820px; margin: 0 auto 36px; text-align: center; }
.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--cyan);
  padding: 4px 10px; border-radius: 6px;
  background: rgba(0,255,122,.06); border: 1px solid rgba(0,255,122,.18);
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700; font-size: clamp(28px, 4.2vw, 52px);
  letter-spacing: -0.02em; line-height: 1.1;
  margin: 18px 0 14px;
}
.section-head p { color: var(--text-2); font-size: clamp(15px, 1.3vw, 17px); }

/* ===== Pillars ===== */
.pillar-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 22px;
}
.pillar {
  position: relative;
  padding: 30px 28px; border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.pillar::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit;
  padding: 1px; pointer-events: none;
  background: var(--grad-soft);
  -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 .3s;
}
.pillar:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,.18);
  box-shadow: 0 20px 60px rgba(0,255,122,.15), 0 20px 80px rgba(94,234,212,.12);
}
.pillar:hover::before { opacity: 1; }
.pillar-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(0,255,122,.06);
  border: 1px solid var(--border);
  margin-bottom: 18px;
}
.pillar h3 {
  font-family: var(--font-display);
  font-size: 22px; margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.pillar p { color: var(--text-2); margin: 0 0 16px; font-size: 14.5px; }
.pillar-meta { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.pillar-meta li span {
  display: inline-block;
  padding: 4px 10px; font-family: var(--font-mono);
  font-size: 11.5px; color: var(--text-2);
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
}

/* ===== Architecture ===== */
.arch-wrap {
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: 22px; align-items: stretch;
}
.arch-figure {
  padding: 22px; display: grid; place-items: center;
  background: rgba(255,255,255,.03);
}
.arch-figure img {
  max-height: 460px; object-fit: contain;
  filter: drop-shadow(0 10px 30px rgba(0,0,0,.4));
}
.arch-stack { padding: 22px; display: flex; flex-direction: column; gap: 16px; }
.arch-stack-head {
  display: flex; align-items: center; justify-content: space-between;
}
.badge {
  font-family: var(--font-mono); font-size: 12px;
  padding: 4px 10px; border-radius: 6px;
  background: rgba(94,234,212,.08); color: var(--magenta);
  border: 1px solid rgba(94,234,212,.22);
}
.hint { font-size: 11.5px; color: var(--text-3); }
.layer-stack {
  display: flex; flex-direction: column; gap: 6px;
  padding: 8px 4px;
}
.lyr {
  display: grid; grid-template-columns: 60px 1fr auto;
  align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  font-family: var(--font-mono); font-size: 12.5px;
  transition: transform .2s, border-color .2s, background .2s;
  cursor: default;
}
.lyr:hover {
  transform: translateX(4px);
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.06);
}
.lyr .ix { color: var(--text-3); }
.lyr .lab { color: var(--text); }
.lyr .pill {
  font-size: 10.5px; padding: 2px 8px; border-radius: 6px;
  letter-spacing: .5px;
}
.lyr.tla .pill { color: var(--cyan); background: rgba(0,255,122,.08); border: 1px solid rgba(0,255,122,.22); }
.lyr.mha .pill { color: var(--magenta); background: rgba(94,234,212,.08); border: 1px solid rgba(94,234,212,.22); }
.lyr.tla .lab::before {
  content: ""; display: inline-block; width: 6px; height: 6px;
  margin-right: 8px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
.lyr.mha .lab::before {
  content: ""; display: inline-block; width: 6px; height: 6px;
  margin-right: 8px; border-radius: 50%; background: var(--magenta);
  box-shadow: 0 0 8px var(--magenta);
}
.lyr.mha {
  background: linear-gradient(90deg, rgba(94,234,212,.08), rgba(255,255,255,.03));
}

.arch-variants { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: auto; }
.variant {
  padding: 14px; border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
}
.var-name { font-family: var(--font-display); font-size: 15px; margin-bottom: 8px; }
.var-name b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.var-bars { display: flex; height: 10px; border-radius: 6px; overflow: hidden; background: rgba(255,255,255,.04); margin-bottom: 8px; position: relative; }
.bar { display: block; width: var(--w); position: relative; }
.bar.tla { background: linear-gradient(90deg, #00ff7a, #5eead4); }
.bar.mha { background: linear-gradient(90deg, #14e887, #00b85a); }
.bar i {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  font-style: normal; font-family: var(--font-mono); font-size: 9.5px;
  color: rgba(0,0,0,.6); letter-spacing: .3px; white-space: nowrap;
}
.var-meta { font-size: 12px; color: var(--text-3); }

.arch-formulas {
  margin-top: 24px; padding: 18px 22px; border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: rgba(0,0,0,.35);
}
.arch-formulas pre { margin: 0; }
.arch-formulas code {
  font-family: var(--font-mono); font-size: 13px; color: var(--text-2);
  white-space: pre-wrap;
}
.c-tk { color: var(--text); font-weight: 600; }
.c-tla { color: var(--cyan); }
.c-mha { color: var(--magenta); }

/* ===== Latency ===== */
.latency-stage {
  padding: 28px;
  display: grid; grid-template-columns: 1fr; gap: 20px;
}
.latency-controls {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.ctrl label {
  display: block; font-family: var(--font-mono);
  font-size: 11.5px; color: var(--text-3);
  letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 10px;
}
.slider-row { display: flex; gap: 14px; align-items: center; }
.slider-row output {
  font-family: var(--font-mono); font-size: 14px;
  color: var(--cyan); min-width: 64px; text-align: right;
}
input[type="range"] {
  flex: 1; -webkit-appearance: none; appearance: none;
  height: 4px; border-radius: 2px;
  background: linear-gradient(to right, var(--cyan), var(--magenta));
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 16px rgba(0,255,122,.6);
  cursor: pointer; transition: transform .15s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2px solid var(--cyan);
  box-shadow: 0 0 16px rgba(0,255,122,.6); cursor: pointer;
}
.presets { display: flex; gap: 8px; flex-wrap: wrap; }
.preset {
  padding: 8px 12px; border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: rgba(255,255,255,.03);
  color: var(--text-2);
  font-family: var(--font-mono); font-size: 12px;
  cursor: pointer; transition: .2s;
}
.preset:hover { color: #fff; border-color: rgba(255,255,255,.3); }
.preset.active {
  background: rgba(0,255,122,.12);
  color: var(--cyan); border-color: rgba(0,255,122,.4);
}

.latency-canvas {
  width: 100%; height: 380px;
  display: block;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(0,0,0,.3), rgba(0,0,0,.15));
  border: 1px solid var(--border);
}

.latency-readout {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px;
}
.rd {
  padding: 16px 18px; border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
}
.rd-name {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-2); margin-bottom: 8px;
}
.rd-name .dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.rd-name .dot.vit { background: #ffb86b; box-shadow: 0 0 10px rgba(255,184,107,.6); }
.rd-name .dot.tv  { background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.rd-num {
  font-family: var(--font-display); font-weight: 700;
  font-size: 30px; letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  display: flex; align-items: baseline; gap: 4px;
}
.rd-num em { font-style: normal; font-size: 14px; color: var(--text-3); font-weight: 500; }
.rd-bar {
  margin-top: 8px;
  height: 4px; border-radius: 2px; background: rgba(255,255,255,.06);
  overflow: hidden;
}
.rd-bar i { display: block; height: 100%; width: 0%; transition: width .6s cubic-bezier(.2,.8,.2,1); }
.rd-vit .rd-bar i { background: #ffb86b; }
.rd-tv  .rd-bar i { background: linear-gradient(90deg, var(--mint), var(--xp-green)); }
.rd-speed .rd-num { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.rd-hint { font-size: 12px; color: var(--text-3); }

.latency-note { font-size: 12px; color: var(--text-3); margin: 4px 0 0; }
.latency-note code {
  font-family: var(--font-mono); font-size: 11.5px;
  padding: 1px 6px; border-radius: 4px;
  background: rgba(255,255,255,.05); color: var(--cyan);
}

/* ===== Latency figure (static image) ===== */
.latency-figure {
  padding: 28px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-1);
  display: flex; flex-direction: column; gap: 16px;
}
.latency-figure img {
  width: 100%;
  border-radius: var(--r-md);
  object-fit: contain;
  filter: drop-shadow(0 12px 36px rgba(0,0,0,.45));
}
.latency-figure .latency-note { margin: 0; text-align: center; }

/* ===== Data flow ===== */
.data-flow {
  display: grid;
  grid-template-columns: 1fr 24px 1fr 24px 1fr 24px 1fr;
  gap: 0; align-items: stretch;
  margin-bottom: 36px;
}
.flow-step {
  padding: 22px;
  position: relative;
  animation: stepIn .8s ease both;
  animation-delay: calc(var(--i) * .08s);
}
@keyframes stepIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.step-no {
  display: inline-block;
  font-family: var(--font-mono); font-size: 11.5px;
  color: var(--cyan); letter-spacing: 2px;
  margin-bottom: 8px;
}
.flow-step h4 {
  margin: 0 0 6px; font-family: var(--font-display); font-size: 17px;
}
.flow-step p { margin: 0; color: var(--text-2); font-size: 13.5px; }
.flow-arrow {
  position: relative;
}
.flow-arrow::before {
  content: ""; position: absolute;
  top: 50%; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  background-size: 200% 100%;
  animation: arrowFlow 2.5s linear infinite;
}
.flow-arrow::after {
  content: "▸"; position: absolute;
  right: -2px; top: 50%; transform: translateY(-50%);
  color: var(--cyan); font-size: 14px;
}
@keyframes arrowFlow {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

.data-figs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 22px;
}
.data-figs figure {
  margin: 0; padding: 16px;
  border-radius: var(--r-lg);
}
.data-figs figcaption {
  margin-top: 12px; text-align: center;
  font-size: 13px; color: var(--text-3);
  font-family: var(--font-mono); letter-spacing: .5px;
}
.data-figs img {
  border-radius: var(--r-md);
  background: rgba(255,255,255,.03);
}

/* ===== Native res ===== */
.res-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px;
}
.res-card {
  padding: 18px;
  display: flex; flex-direction: column; gap: 14px;
  transition: transform .3s, border-color .3s;
}
.res-card:hover { transform: translateY(-3px); border-color: rgba(255,255,255,.16); }
.res-vis {
  aspect-ratio: 4/3;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(0,255,122,.08), rgba(94,234,212,.08));
  border: 1px solid var(--border);
  display: grid; place-items: center;
  overflow: hidden; position: relative;
}
.patch-canvas {
  width: 92%; height: 92%;
  display: grid;
  gap: 1px;
}
.patch-canvas span {
  background: rgba(0,255,122,.15);
  border-radius: 1px;
  animation: patchPulse 6s ease-in-out infinite;
}
@keyframes patchPulse {
  0%,100% { background: rgba(0,255,122,.15); }
  50%     { background: rgba(94,234,212,.25); }
}
.res-body h4 { margin: 0 0 4px; font-family: var(--font-display); font-size: 18px; }
.muted { color: var(--text-3); font-size: 12px; font-family: var(--font-mono); }

/* ===== Results ===== */
.result-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px; margin-bottom: 36px;
}
.result-card { padding: 26px 22px; }
.rc-num {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: -0.02em;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.rc-lbl { font-size: 14px; color: var(--text); margin: 4px 0 6px; font-weight: 500; }
.rc-hint { font-size: 12px; color: var(--text-3); font-family: var(--font-mono); }

.results-compare { padding: 28px; }
.results-compare h3 {
  margin: 0 0 20px;
  font-family: var(--font-display); font-size: 20px;
}
.table-wrap { overflow-x: auto; }
.results-compare table {
  width: 100%; border-collapse: collapse;
  font-size: 14px;
}
.results-compare th, .results-compare td {
  padding: 12px 14px; text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.results-compare th {
  font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--text-3); font-weight: 500;
}
.results-compare tbody tr:hover { background: rgba(255,255,255,.02); }
.row-tag { color: var(--text-2); font-family: var(--font-mono); font-size: 13px; }
.tag-ours {
  color: #fff;
  background: var(--grad-soft);
  padding: 4px 10px; border-radius: 6px;
  border: 1px solid rgba(0,255,122,.28);
}
.row-ours td { background: rgba(0,255,122,.04); }
.row-ours td:not(:first-child) { color: #fff; font-weight: 500; }
.row-section td {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--text-3); font-weight: 500;
  padding-top: 18px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.015);
}
.results-compare th:nth-child(5),
.results-compare th:nth-child(6) { color: #7af9ff; }
.results-compare td:nth-child(5),
.results-compare td:nth-child(6) { background: rgba(122,249,255,.03); }

/* ===== Vision ===== */
.vision-card {
  padding: 56px clamp(28px, 5vw, 64px);
  text-align: center;
  position: relative; overflow: hidden;
}
.vision-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,255,122,.08), transparent 60%);
  pointer-events: none;
}
.vision-card h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(28px, 4.5vw, 48px);
  letter-spacing: -0.02em; line-height: 1.1;
  margin: 16px 0 16px;
}
.vision-card p {
  max-width: 760px; margin: 0 auto 28px;
  color: var(--text-2); font-size: 16px;
}
.vision-pills {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;
  position: relative;
}
.vision-pills span {
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--border-strong); background: rgba(255,255,255,.04);
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--text-2);
}

/* ===== Footer ===== */
.footer {
  margin-top: 60px;
  padding: 64px var(--pad) 0;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0,0,0,.2), rgba(0,0,0,.5));
}
.footer-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr 1.4fr;
  gap: 36px;
}
.foot-brand p { color: var(--text-3); font-size: 13px; margin-top: 10px; }
.foot-links { display: flex; flex-direction: column; gap: 8px; padding-top: 4px; }
.foot-links a { color: var(--text-2); font-size: 14px; transition: color .2s; }
.foot-links a:hover { color: var(--cyan); }

.foot-cite {
  border: 1px solid var(--border); border-radius: var(--r-md);
  background: rgba(0,0,0,.35);
  padding: 14px;
}
.cite-head {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-3);
  margin-bottom: 8px;
}
.foot-cite pre {
  margin: 0; padding: 12px; overflow-x: auto;
  background: rgba(0,0,0,.4); border-radius: 8px;
}
.foot-cite code {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-2);
  white-space: pre;
}

.foot-bottom {
  max-width: var(--maxw); margin: 0 auto;
  padding: 22px 0 28px; margin-top: 36px;
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-3);
}

/* ===== Reveal on scroll ===== */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity .8s ease, transform .8s ease;
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1; transform: none;
}

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .pillar-grid { grid-template-columns: 1fr; }
  .arch-wrap { grid-template-columns: 1fr; }
  .data-flow {
    grid-template-columns: 1fr;
  }
  .flow-arrow { display: none; }
  .data-figs { grid-template-columns: 1fr; }
  .res-grid { grid-template-columns: 1fr 1fr; }
  .result-grid { grid-template-columns: 1fr 1fr; }
  .latency-controls { grid-template-columns: 1fr; }
  .latency-readout { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .nav-cta .btn-ghost { display: none; }
  .res-grid { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
}

/* ===== Architecture (full-width image only) ===== */
.arch-figure-full {
  padding: 28px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid var(--border-strong);
  display: grid; place-items: center;
}
.arch-figure-full img {
  width: 100%;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 12px 36px rgba(0,0,0,.45));
}

.arch-variants-row {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.arch-variants-row .variant {
  padding: 18px 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
}
.arch-variants-row .var-name {
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 12px;
  display: flex; align-items: baseline; gap: 8px;
  white-space: nowrap;
}
.arch-variants-row .var-name b {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-size: 22px;
}
.arch-variants-row .var-bars {
  display: flex; height: 12px; border-radius: 6px; overflow: hidden;
  background: rgba(255,255,255,.04); margin-bottom: 10px; position: relative;
}

/* ===== Data figures (single column, full-width) ===== */
.data-figs-stack {
  display: flex; flex-direction: column; gap: 24px;
}
.data-figs-stack figure {
  margin: 0; padding: 22px;
  border-radius: var(--r-lg);
}
.data-figs-stack img {
  width: 100%;
  border-radius: var(--r-md);
  background: rgba(255,255,255,.03);
}
.data-figs-stack figcaption {
  margin-top: 14px; text-align: center;
  font-size: 13px; color: var(--text-3);
  font-family: var(--font-mono); letter-spacing: .5px;
}

/* ===== Training stages (replaces resolution grid) ===== */
.stages-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  position: relative;
}
.stage-card {
  position: relative;
  padding: 26px 22px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid var(--border);
  transition: transform .3s, border-color .3s, box-shadow .3s;
  display: flex; flex-direction: column;
}
.stage-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,255,122,.3);
  box-shadow: 0 20px 50px rgba(0,255,122,.12);
}
.stage-card .stage-no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 2.5px;
  color: var(--xp-green);
  margin-bottom: 6px;
}
.stage-card h4 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.01em;
}
.stage-card p {
  margin: 0 0 16px;
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.55;
}
.stage-meta {
  margin-top: auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(255,255,255,.08);
}
.stage-meta dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 1px;
  color: var(--text-3);
  text-transform: uppercase;
}
.stage-meta dd {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text);
}
.stage-card .stage-progress {
  height: 3px; border-radius: 2px;
  background: rgba(255,255,255,.06);
  margin: 12px 0 18px;
  overflow: hidden;
}
.stage-card .stage-progress i {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--mint), var(--xp-green));
  width: var(--p, 30%);
  box-shadow: 0 0 12px rgba(0,255,122,.5);
}

@media (max-width: 980px) {
  .stages-grid { grid-template-columns: 1fr 1fr; }
  .arch-variants-row { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  .stages-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}