/* ============================================================
   Cutscene Agent — Project Homepage Stylesheet
   Design: dark cinematic theme with glassmorphism accents
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  --bg:         #0a0a0a;
  --bg-card:    rgba(255,255,255,0.025);
  --bg-card-h:  rgba(255,255,255,0.05);
  --surface:    #0f0f0f;
  --surface-2:  #161616;
  --text:       #f5f5f5;
  --text-dim:   #a3a3a3;
  --text-muted: #737373;
  --accent:     #f97316;   /* orange-500 */
  --accent2:    #ea580c;   /* orange-600 */
  --accent3:    #fbbf24;   /* amber-400 */
  --gradient:   linear-gradient(135deg, var(--accent), var(--accent2));
  --gradient-subtle: linear-gradient(135deg, rgba(249,115,22,0.15), rgba(234,88,12,0.08));
  --font-display: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
  --font-body:    'Inter', 'Noto Sans SC', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Consolas', monospace;
  --radius:     14px;
  --radius-sm:  10px;
  --radius-xs:  6px;
  --max-w:      1200px;
  --ease:       cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 0.3s var(--ease);
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ---------- Container ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

/* ---------- Utility ---------- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(249,115,22,0.1);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 860px;
  margin: 0 auto;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 20px;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}
.navbar__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.navbar__logo-icon {
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #f97316, #fbbf24);
  color: #fff;
  font-size: 0.85rem;
  box-shadow: 0 4px 14px rgba(249,115,22,0.35);
}
.navbar__logo-text {
  background: linear-gradient(135deg, #ffffff 0%, #a3a3a3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.navbar__links {
  display: flex;
  gap: 32px;
}
.navbar__links a {
  font-size: 0.88rem;
  color: var(--text-dim);
  transition: color var(--transition);
  position: relative;
}
.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient);
  border-radius: 1px;
  transition: width var(--transition);
}
.navbar__links a:hover { color: var(--text); }
.navbar__links a:hover::after { width: 100%; }

/* Language Switch */
.lang-switch {
  display: flex;
  background: rgba(255,255,255,0.06);
  border-radius: 100px;
  padding: 3px;
}
.lang-btn {
  padding: 5px 14px;
  font-size: 0.78rem;
  border-radius: 100px;
  transition: all var(--transition);
  font-weight: 500;
  color: var(--text-dim);
}
.lang-btn.active {
  background: var(--gradient);
  color: #fff;
}
.lang-btn:hover:not(.active) {
  color: var(--text);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 80px;
  padding-left: max(20px, calc((100vw - 1400px) / 2));
  padding-right: max(20px, calc((100vw - 1400px) / 2));
  overflow: hidden;
}
.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
/* CSS-only floating particles */
.hero__particles::before,
.hero__particles::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
  filter: blur(80px);
  animation: float 12s ease-in-out infinite;
}
.hero__particles::before {
  width: 500px; height: 500px;
  background: var(--accent);
  top: -10%; left: -5%;
}
.hero__particles::after {
  width: 400px; height: 400px;
  background: var(--accent2);
  bottom: -10%; right: -5%;
  animation-delay: -6s;
  animation-direction: reverse;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero__content {
  position: relative;
  z-index: 2;
  flex: 1;
  padding: 0 clamp(20px, 5vw, 60px);
  max-width: 600px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 24px;
  font-weight: 500;
}
.hero__badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1;
  margin-bottom: 20px;
}
.hero__title-line {
  display: block;
}
.hero__title-line--1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__title-line--2 {
  font-size: clamp(2.4rem, 5.5vw, 4.4rem);
  color: var(--text);
  -webkit-text-fill-color: var(--text);
}
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-dim);
  margin-bottom: 16px;
  font-weight: 400;
}
.hero__desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

/* Hero Buttons */
.hero__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(249,115,22,0.3);
}
.btn--primary:hover {
  box-shadow: 0 6px 30px rgba(249,115,22,0.45);
  transform: translateY(-2px);
}
.btn--glass {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  color: var(--text);
}
.btn--glass:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}
.btn--ghost {
  color: var(--text-dim);
  border: 1px solid rgba(255,255,255,0.08);
}
.btn--ghost:hover {
  color: var(--text);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

/* Hero Visual */
.hero__visual {
  position: relative;
  z-index: 2;
  flex: 1.2;
  display: flex;
  justify-content: center;
  padding: 0 20px;
  max-width: 720px;
}
.hero__img-wrapper {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
  max-width: 680px;
}
.hero__img {
  border-radius: var(--radius);
  transition: transform 0.6s var(--ease);
  max-height: 75vh;
  width: 100%;
  object-fit: contain;
}
.hero__img-wrapper:hover .hero__img {
  transform: scale(1.02);
}
.hero__img-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(ellipse at center, rgba(249,115,22,0.15) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* Hero Scroll */
.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 3;
}
.hero__scroll span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.7); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================================
   ABSTRACT
   ============================================================ */
.abstract {
  padding: 100px 0 80px;
}
.abstract__inner {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  max-width: 820px;
  margin: 0 auto;
}
.abstract__line {
  flex-shrink: 0;
  width: 3px;
  min-height: 80px;
  align-self: stretch;
  background: var(--gradient);
  border-radius: 2px;
}
.abstract__text {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--text-dim);
}
.abstract__text strong {
  color: var(--text);
  font-weight: 600;
}

/* ============================================================
   CONTRIBUTIONS
   ============================================================ */
.contributions {
  padding: 100px 0 120px;
}
.contrib-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 960px) {
  .contrib-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
}

.contrib-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 36px 28px 28px;
  transition: all 0.4s var(--ease);
  overflow: hidden;
}
.contrib-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity var(--transition);
}
.contrib-card:hover {
  background: var(--bg-card-h);
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.contrib-card:hover::before { opacity: 1; }

.contrib-card__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: absolute;
  top: 16px;
  right: 20px;
}
.contrib-card__visual {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.contrib-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.contrib-card__desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.contrib-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(249,115,22,0.1);
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* --- Contribution Animations --- */

/* Toolkit: Agent <-> Engine */
.contrib-anim--toolkit {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  justify-content: center;
}
.anim-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
}
.anim-node i {
  font-size: 1.8rem;
  color: var(--accent);
  position: relative;
  z-index: 2;
}
.anim-node span {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 500;
}
.anim-node__pulse {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(249,115,22,0.08);
  animation: node-pulse 3s ease-in-out infinite;
}
@keyframes node-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0.2; }
}
.anim-node--engine i { color: var(--accent3); }
.anim-node--engine .anim-node__pulse { background: rgba(251,191,36,0.08); }

.anim-connector {
  position: relative;
  flex: 1;
  max-width: 80px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.anim-connector__line {
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--accent3));
  opacity: 0.3;
}
.anim-connector__particles {
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  transform: translateY(-50%);
}
.anim-particle {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  animation: particle-flow 2.5s linear infinite;
}
.anim-particle:nth-child(2) { animation-delay: -0.8s; background: var(--accent2); }
.anim-particle:nth-child(3) { animation-delay: -1.6s; background: var(--accent3); }
@keyframes particle-flow {
  0% { left: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}
.anim-connector__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  position: absolute;
  bottom: -2px;
  text-align: center;
  width: 100%;
  letter-spacing: 0.1em;
}

/* Agent Tree */
.contrib-anim--agents {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.agent-tree {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.agent-tree__root {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(249,115,22,0.12);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(249,115,22,0.2);
}
.agent-tree__root i { color: var(--accent); font-size: 1rem; }
.agent-tree__root span { font-size: 0.8rem; font-weight: 600; color: var(--text); }

.agent-tree__branches {
  display: flex;
  gap: 16px;
}
.agent-tree__branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.agent-tree__line {
  width: 1px;
  height: 20px;
  background: rgba(249,115,22,0.3);
}
.agent-tree__leaf {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-xs);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
}
.contrib-card:hover .agent-tree__leaf {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}
.agent-tree__leaf i { font-size: 0.9rem; color: var(--accent2); }
.agent-tree__leaf span { font-size: 0.65rem; color: var(--text-dim); font-weight: 500; }

.agent-loop {
  position: relative;
  width: 200px;
  text-align: center;
}
.agent-loop__svg {
  width: 100%;
  height: 30px;
}
.agent-loop__path {
  animation: dash-flow 3s linear infinite;
}
@keyframes dash-flow {
  to { stroke-dashoffset: -40; }
}
.agent-loop__label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Bench Stack */
.contrib-anim--bench {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}
.bench-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 220px;
}
.bench-layer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.bench-layer[data-level="1"] {
  background: rgba(249,115,22,0.08);
  border: 1px solid rgba(249,115,22,0.15);
}
.bench-layer[data-level="2"] {
  background: rgba(96,165,250,0.08);
  border: 1px solid rgba(96,165,250,0.15);
}
.bench-layer[data-level="3"] {
  background: rgba(167,139,250,0.08);
  border: 1px solid rgba(167,139,250,0.15);
}
.contrib-card:hover .bench-layer {
  transform: translateX(4px);
}
.bench-layer__badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
}
.bench-layer[data-level="1"] .bench-layer__badge { background: rgba(249,115,22,0.2); color: #f97316; }
.bench-layer[data-level="2"] .bench-layer__badge { background: rgba(96,165,250,0.2); color: #60a5fa; }
.bench-layer[data-level="3"] .bench-layer__badge { background: rgba(167,139,250,0.2); color: #a78bfa; }
.bench-layer__text {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 500;
}

.bench-stats {
  display: flex;
  gap: 24px;
}
.bench-stat {
  text-align: center;
}
.bench-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.bench-stat__label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================================
   PIPELINE — Architecture Diagram (Wide Horizontal Layout)
   ============================================================ */
.pipeline {
  padding: 100px 0;
  background: var(--surface);
}
.pipeline__figure-wrap {
  max-width: 1100px;
  margin: 0 auto;
}

/* ============================================================
   INTERACTIVE FIGURE (shared base)
   ============================================================ */
.interactive-figure {
  width: 100%;
  position: relative;
}

/* ============================================================
   ARCHITECTURE DIAGRAM — Wide Horizontal Layout
   ============================================================ */
.arch-diagram--wide {
  display: grid;
  grid-template-columns: 180px 1fr 280px;
  grid-template-rows: auto 1fr;
  gap: 0;
  align-items: center;
  padding: 24px 0;
  min-height: 380px;
}
.arch-diagram--wide > .arch-skill-banner {
  grid-column: 1 / -1;
  grid-row: 1;
}
.arch-diagram--wide > .arch-io-col { grid-column: 1; grid-row: 2; }
.arch-diagram--wide > .arch-center-col { grid-column: 2; grid-row: 2; }
.arch-diagram--wide > .arch-right-col { grid-column: 3; grid-row: 2; }
@media (max-width: 960px) {
  .arch-diagram--wide {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .arch-diagram--wide > .arch-skill-banner,
  .arch-diagram--wide > .arch-io-col,
  .arch-diagram--wide > .arch-center-col,
  .arch-diagram--wide > .arch-right-col {
    grid-column: 1;
    grid-row: auto;
  }
}

/* Skill Banner (horizontal: ext agents → skill card → arrow down) */
.arch-skill-banner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 24px 0;
  position: relative;
}
.arch-skill-banner__down {
  position: absolute;
  left: 50%;
  bottom: -36px;
  transform: translateX(-50%);
  pointer-events: none;
}
.arch-skill-arrow--horiz {
  flex-direction: row;
  gap: 4px;
}
.arch-skill-arrow--horiz svg { transform: none; }

/* Left IO column */
.arch-io-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.arch-node--io-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 20px;
  border-radius: var(--radius);
  text-align: center;
  width: 100%;
  transition: all var(--transition);
}
.arch-node--io-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}
.arch-node--io-card.arch-node--input {
  background: linear-gradient(135deg, rgba(249,115,22,0.1), rgba(234,88,12,0.06));
  border: 1px solid rgba(249,115,22,0.2);
}
.arch-node--io-card.arch-node--output {
  background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(251,191,36,0.06));
  border: 1px solid rgba(16,185,129,0.2);
}
.arch-node__icon-wrap {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.arch-node__icon-wrap--input {
  background: linear-gradient(135deg, rgba(249,115,22,0.2), rgba(234,88,12,0.12));
  color: var(--accent);
}
.arch-node__icon-wrap--output {
  background: linear-gradient(135deg, rgba(16,185,129,0.2), rgba(251,191,36,0.12));
  color: #10b981;
}
.arch-node__icon-wrap--engine {
  background: rgba(251,191,36,0.15);
  color: var(--accent3);
}
.arch-node__text { text-align: center; }
.arch-node__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  display: block;
}
.arch-node__sub {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 400;
  display: block;
}
.arch-io-arrow {
  display: flex;
  justify-content: center;
  padding: 4px 0;
}

/* Center column */
.arch-center-col {
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
}

/* External Agents block (inside skill banner) */
.arch-ext-agents {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.arch-ext-agents__label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.arch-ext-agents__row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.arch-ext-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.25);
  border-radius: 100px;
  font-size: 0.72rem;
  color: var(--text);
}
.arch-ext-chip i { color: #06b6d4; font-size: 0.78rem; }
.arch-skill-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.arch-skill-arrow__label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: #06b6d4;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.arch-skill-arrow--short svg { height: 20px; }
.arch-skill-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(234,88,12,0.08));
  border: 1px solid rgba(6,182,212,0.35);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 20px rgba(6,182,212,0.1);
}
.arch-skill-card__icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(6,182,212,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #06b6d4;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.arch-skill-card__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.arch-skill-card__title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}
.arch-skill-card__sub {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.arch-h-connector {
  width: 60px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.arch-h-svg { width: 60px; height: 24px; }
.arch-h-connector__label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--accent3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(251,191,36,0.08);
  padding: 2px 8px;
  border-radius: 100px;
}

@media (max-width: 960px) {
  .arch-center-col { flex-direction: column; }
  .arch-h-connector { width: auto; transform: rotate(90deg); }
}

/* Hero agent card */
.arch-card--hero {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid rgba(249,115,22,0.18);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}
.arch-card--hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
}
.arch-card--hero:hover {
  border-color: rgba(249,115,22,0.35);
  box-shadow: 0 16px 48px rgba(249,115,22,0.1);
}
.arch-card__header-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-xs);
  background: linear-gradient(135deg, rgba(249,115,22,0.2), rgba(234,88,12,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
}
.arch-card__header-icon i {
  color: var(--accent);
  font-size: 1rem;
}
.arch-card__header-text {
  display: flex;
  flex-direction: column;
}
.arch-card__header-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}
.arch-card__header-glow {
  position: absolute;
  top: -20px; right: -20px;
  width: 80px; height: 80px;
  background: radial-gradient(circle, rgba(249,115,22,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.arch-card__body--wide {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 12px;
  padding: 16px;
}
@media (max-width: 768px) {
  .arch-card__body--wide { grid-template-columns: 1fr; }
}

/* Subagent row (horizontal) */
.arch-subagent-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* Visual feedback loop ring */
.arch-loop-ring {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 8px auto 0;
}
.arch-loop-ring .arch-loop-step {
  position: absolute;
  padding: 5px 8px;
  border-radius: var(--radius-xs);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.4s var(--ease);
  z-index: 2;
}
.arch-loop-ring .arch-loop-step[data-step="1"] { top: 0; left: 50%; transform: translateX(-50%); }
.arch-loop-ring .arch-loop-step[data-step="2"] { bottom: 8px; left: 0; }
.arch-loop-ring .arch-loop-step[data-step="3"] { bottom: 8px; right: 0; }
.arch-loop-ring-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.arch-loop-ring-spinner {
  transform-origin: 60px 60px;
  animation: loopSpin 3.6s linear infinite;
  animation-delay: 1s;
  animation-fill-mode: backwards;
}
@keyframes loopSpin {
  from { transform: rotate(-90deg); }
  to   { transform: rotate(270deg); }
}

/* Right column */
.arch-right-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.arch-card--right-card {
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.arch-right-engine {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.arch-ue-connector {
  display: flex;
  justify-content: center;
  padding: 2px 0;
}
.arch-right-engine .arch-node--engine {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: rgba(251,191,36,0.06);
  border: 1px solid rgba(251,191,36,0.15);
  width: 100%;
}
/* Emphasized UE engine node */
.arch-node--engine-hero {
  position: relative;
  border-width: 2px;
  border-color: rgba(251,191,36,0.3);
  background: linear-gradient(135deg, rgba(251,191,36,0.1), rgba(251,191,36,0.03));
  box-shadow: 0 4px 20px rgba(251,191,36,0.08);
}
.arch-node--engine-hero:hover {
  border-color: rgba(251,191,36,0.5);
  box-shadow: 0 8px 30px rgba(251,191,36,0.15);
  transform: translateY(-2px);
}
.arch-node__engine-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(ellipse at center, rgba(251,191,36,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* Prominent bidirectional connector */
.arch-h-connector--prominent {
  width: 80px;
}
.arch-h-svg--prominent { width: 80px; height: 40px; }
.arch-h-connector__sublabel {
  font-size: 0.55rem;
  color: var(--text-muted);
  text-align: center;
  display: block;
  margin-top: 2px;
  line-height: 1.2;
}

/* External service tool modules (slightly different styling) */
.arch-toolkit-mod--external {
  border-color: rgba(6,182,212,0.12);
  background: rgba(6,182,212,0.04);
}
.arch-toolkit-mod--external i { color: #06b6d4 !important; opacity: 0.8; }

/* IO note under input/output */
.arch-io-note {
  font-size: 0.6rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 6px;
  letter-spacing: 0.05em;
  opacity: 0.6;
}
.arch-io-note i {
  font-size: 0.5rem;
  margin-right: 4px;
}

/* Agent Card */
.arch-card {
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.arch-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(249,115,22,0.1), rgba(234,88,12,0.05));
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-weight: 700;
  font-size: 0.95rem;
  position: relative;
}
.arch-card__header i { color: var(--accent); font-size: 1rem; }
.arch-card__sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: auto;
}
.arch-card__body {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 12px;
  padding: 16px;
}
@media (max-width: 768px) {
  .arch-card__body { grid-template-columns: 1fr; }
}

/* Modules inside agent card */
.arch-module {
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.05);
  background: rgba(255,255,255,0.02);
}
.arch-module__title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.arch-module__title i { color: var(--accent); font-size: 0.8rem; }
.arch-module__detail { display: flex; flex-wrap: wrap; gap: 6px; }
.arch-tag {
  font-size: 0.65rem;
  padding: 3px 8px;
  border-radius: 100px;
  font-weight: 500;
}
.arch-tag--blue {
  background: rgba(249,115,22,0.12);
  color: var(--accent);
  border: 1px solid rgba(249,115,22,0.2);
}

/* Subagent grid */
.arch-subagent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.arch-subagent {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: var(--radius-xs);
  background: rgba(234,88,12,0.06);
  border: 1px solid rgba(234,88,12,0.12);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: all var(--transition);
}
.arch-subagent:hover {
  background: rgba(234,88,12,0.12);
  border-color: rgba(234,88,12,0.25);
  color: var(--text);
}
.arch-subagent i { color: var(--accent2); font-size: 0.8rem; }
.arch-subagent--custom {
  background: rgba(251,191,36,0.06);
  border-color: rgba(251,191,36,0.12);
}
.arch-subagent--custom i { color: var(--accent3); }
.arch-subagent--custom:hover {
  background: rgba(251,191,36,0.12);
  border-color: rgba(251,191,36,0.25);
}

/* Visual loop — old linear layout (kept for fallback) */
.arch-loop-cycle {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}
.arch-loop-step {
  padding: 6px 10px;
  border-radius: var(--radius-xs);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.4s var(--ease);
}
.arch-loop-step--active {
  background: rgba(251,191,36,0.15);
  border-color: rgba(251,191,36,0.35);
  color: var(--accent3);
  box-shadow: 0 0 16px rgba(251,191,36,0.2);
}
.arch-loop-arrow {
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.5;
}
.arch-loop-return {
  font-size: 1rem;
  color: var(--accent3);
  opacity: 0.4;
  margin-left: 4px;
}

/* Toolkit & External cards */
.arch-row--toolkit {
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.arch-card--toolkit,
.arch-card--external {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  flex: 1;
  min-width: 0;
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
}
.arch-card__header--toolkit {
  background: rgba(251,191,36,0.06);
  border-bottom: 1px solid rgba(251,191,36,0.1);
}
.arch-card__header--toolkit i { color: var(--accent3); }
.arch-card__header--external {
  background: rgba(6,182,212,0.06);
  border-bottom: 1px solid rgba(6,182,212,0.1);
}
.arch-card__header--external i { color: #06b6d4; }
.arch-toolkit-modules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 14px;
}
.arch-toolkit-mod {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: var(--radius-xs);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  font-size: 0.72rem;
  color: var(--text-dim);
  transition: all var(--transition);
}
.arch-toolkit-mod:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text);
}
.arch-toolkit-mod i { font-size: 0.78rem; color: var(--accent3); opacity: 0.7; }
.arch-card--external .arch-toolkit-mod i { color: #06b6d4; }


/* ============================================================
   RADAR CHART
   ============================================================ */
.radar-svg {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  display: block;
  overflow: visible;
}
.radar-ring-label {
  fill: var(--text-muted);
  font-size: 9px;
  font-family: var(--font-mono);
}
.radar-metric-label {
  fill: var(--text-dim);
  font-size: 10px;
  font-family: var(--font-body);
  font-weight: 500;
}
.radar-polygon {
  transition: all 0.4s var(--ease);
  animation: radarFadeIn 0.8s var(--ease) both;
}
@keyframes radarFadeIn {
  from { opacity: 0; transform: scale(0.6); transform-origin: center; }
  to { opacity: 1; transform: scale(1); }
}
.radar-dot {
  transition: all 0.3s var(--ease);
  animation: radarDotIn 0.5s var(--ease) both;
}
@keyframes radarDotIn {
  from { opacity: 0; r: 0; }
  to { opacity: 1; }
}
.radar-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
  margin-top: 20px;
  padding: 0 16px;
}
.radar-legend__item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: color var(--transition);
  padding: 4px 8px;
  border-radius: var(--radius-xs);
}
.radar-legend__item:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.radar-legend__color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}
.radar-legend__name {
  white-space: nowrap;
}


/* ============================================================
   EVAL FRAMEWORK (3-layer) — Compact for side panel
   ============================================================ */
.eval-framework--compact {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  padding: 0;
  justify-content: center;
  flex: 1;
}
.eval-framework--compact .eval-layer--compact {
  width: 100% !important;
  border-radius: var(--radius-sm);
  background: var(--layer-bg);
  border: 1px solid var(--layer-border);
  padding: 14px 16px;
  transition: all 0.4s var(--ease);
}
.eval-framework--compact .eval-layer--compact:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}
.eval-layer {
  border-radius: var(--radius-sm);
  background: var(--layer-bg);
  border: 1px solid var(--layer-border);
  padding: 18px 24px;
  transition: all 0.4s var(--ease);
  max-width: 100%;
}
.eval-layer:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}
.eval-layer__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.eval-layer__badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-xs);
  background: var(--layer-color);
  color: #0a0a0f;
}
.eval-layer__icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
}
.eval-layer__icon i {
  color: var(--layer-color);
  font-size: 0.9rem;
}
.eval-layer__info { flex: 1; }
.eval-layer__title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}
.eval-layer__subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin: 2px 0 0;
}
.eval-layer__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.eval-metric {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  font-size: 0.7rem;
}
.eval-metric__key {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--layer-color);
  font-size: 0.68rem;
}
.eval-metric__name {
  color: var(--text-dim);
}

/* Connector between layers */
.eval-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 16px;
  position: relative;
}
.eval-framework--compact .eval-connector {
  height: 0;
  display: none;
}
.eval-connector__line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
}
.eval-connector__arrow {
  font-size: 0.6rem;
  color: var(--text-muted);
  opacity: 0.5;
  line-height: 1;
}


/* ============================================================
   L3 BAR CHART — Full-width Horizontal Stacked Bars
   ============================================================ */
.l3-hchart {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 16px;
}
.l3-hchart__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
}
.l3-hchart__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.l3-hchart__legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}
.l3-hchart__rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.l3-hchart__row {
  display: grid;
  grid-template-columns: 100px 1fr 52px;
  align-items: center;
  gap: 14px;
  animation: l3RowAppear 0.5s var(--ease) both;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  transition: background 0.3s var(--ease);
}
.l3-hchart__row:hover {
  background: rgba(255,255,255,0.03);
}
@keyframes l3RowAppear {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}
.l3-hchart__model-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  text-align: right;
}
.l3-hchart__bar-track {
  height: 32px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-xs);
  overflow: hidden;
  display: flex;
  flex-direction: row;
  position: relative;
}
.l3-hchart__seg {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(0,0,0,0.7);
  transition: filter 0.3s var(--ease), flex 0.8s var(--ease);
  position: relative;
  overflow: hidden;
  animation: l3SegGrow 0.8s var(--ease) both;
}
@keyframes l3SegGrow {
  from { flex: 0 0 0; }
}
.l3-hchart__seg-label {
  font-size: 0.58rem;
  font-weight: 600;
  opacity: 0;
  color: rgba(255,255,255,0.9);
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
.l3-hchart__row:hover .l3-hchart__seg-label {
  opacity: 1;
}
.l3-hchart__seg + .l3-hchart__seg {
  border-left: 1px solid rgba(0,0,0,0.15);
}
.l3-hchart__row:hover .l3-hchart__seg {
  filter: brightness(1.2) saturate(1.1);
}
.l3-hchart__row:hover .l3-hchart__bar-track {
  box-shadow: 0 0 20px rgba(249,115,22,0.12);
}
.l3-hchart__score {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  text-align: left;
  transition: color 0.3s var(--ease);
}
.l3-hchart__row:hover .l3-hchart__score {
  color: var(--accent3);
}
/* Rank highlight for #1 model */
.l3-hchart__row--top .l3-hchart__model-name {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.l3-hchart__row--top .l3-hchart__score {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.l3-hchart__row--top .l3-hchart__bar-track {
  box-shadow: 0 0 12px rgba(249,115,22,0.1);
}

@media (max-width: 600px) {
  .l3-hchart__row {
    grid-template-columns: 72px 1fr 44px;
    gap: 8px;
  }
  .l3-hchart__model-name {
    font-size: 0.7rem;
  }
  .l3-hchart__bar-track {
    height: 22px;
  }
}



/* (Camera templates section removed) */

/* ============================================================
   VIDEO DEMOS
   ============================================================ */
.demos {
  padding: 100px 0 120px;
}
.demo-case {
  margin-bottom: 48px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  transition: all 0.4s var(--ease);
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}
.demo-case:hover {
  border-color: rgba(255,255,255,0.1);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}
.demo-case__header {
  padding: 24px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.demo-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--gradient);
  color: #fff;
}
.demo-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

/* ---- Input-type badge (next to title) ---- */
.demo-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  margin-left: auto;
}
.demo-type-badge i { font-size: 0.7rem; }

/* ---- Type legend (horizontal row under section header) ---- */
.demo-type-legend {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.demo-type-legend__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  max-width: 260px;
}
.demo-type-legend__item .demo-type-badge {
  align-self: center;
  margin-left: 0;
}
.demo-type-legend__desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: left;
}

/* Video Replica — teal */
.demo-type-badge--video {
  background: rgba(6,182,212,0.12);
  color: #06b6d4;
  border: 1px solid rgba(6,182,212,0.25);
}
/* Full Script — orange (primary) */
.demo-type-badge--script {
  background: rgba(249,115,22,0.12);
  color: #f97316;
  border: 1px solid rgba(249,115,22,0.25);
}
/* One-liner — violet */
.demo-type-badge--oneliner {
  background: rgba(167,139,250,0.12);
  color: #a78bfa;
  border: 1px solid rgba(167,139,250,0.25);
}

/* ---- Reference-video left panel (video-replica type) ---- */
.demo-script--ref {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 120px;
}
.demo-script__ref-note {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}
.demo-script__ref-note i {
  color: #06b6d4;
  font-size: 0.85rem;
}

/* ---- One-liner left panel ---- */
.demo-script--oneliner .demo-script__lines {
  padding: 20px 16px;
}
.demo-script__prompt {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.7;
  font-style: italic;
  padding: 12px 16px;
  border-left: 2px solid #a78bfa;
  background: rgba(167,139,250,0.04);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}
.demo-script__prompt--neutral {
  font-style: normal;
  border-left-color: rgba(249,115,22,0.45);
  background: rgba(249,115,22,0.05);
}

.demo-meta {
  display: flex;
  gap: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.demo-meta i {
  margin-right: 4px;
  color: var(--text-dim);
}

.demo-case__body {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: start;
}
@media (max-width: 768px) {
  .demo-case__body { grid-template-columns: 1fr; }
}

/* Script Panel */
.demo-script {
  border-right: 1px solid rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
  max-height: 400px;
  overflow-y: auto;
}
@media (max-width: 768px) {
  .demo-script { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.04); }
}
.demo-script__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.demo-script__header i { color: var(--accent); }
.demo-script--oneliner .demo-script__header i { color: #a78bfa; }
.demo-script__lines {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.script-line {
  position: relative;
  padding-left: 16px;
  border-left: 2px solid transparent;
  transition: border-color var(--transition);
}
.script-line:hover {
  border-left-color: var(--accent);
}
.script-char {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  margin-bottom: 4px;
}
.script-char--a { background: rgba(249,115,22,0.15); color: var(--accent); }
.script-char--b { background: rgba(234,88,12,0.15); color: var(--accent2); }
.script-char--c { background: rgba(251,191,36,0.15); color: var(--accent3); }
.script-text {
  font-size: 0.78rem;
  color: var(--text);
  line-height: 1.5;
  font-style: italic;
}
.script-dir {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
  display: block;
}
.script-line--more {
  text-align: center;
  border-left: none;
  padding-left: 0;
}
.script-more {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Video Thumbnail & Modal Trigger */
.demo-video {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.demo-video__thumb {
  position: relative;
  cursor: pointer;
  border-radius: 8px;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}
.demo-video__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.demo-video__thumb--wide {
  aspect-ratio: auto;
}
.demo-video__thumb--wide .demo-video__img {
  height: auto;
  object-fit: contain;
}
.demo-video__play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  transition: background 0.3s;
  pointer-events: none;
}
.demo-video__thumb:hover .demo-video__play-overlay {
  background: rgba(0,0,0,0.15);
}
.demo-video__play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(249,115,22,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 0 rgba(249,115,22,0.4);
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(249,115,22,0.4); }
  50% { box-shadow: 0 0 0 14px rgba(249,115,22,0); }
}
.demo-video__play-btn i {
  font-size: 1.5rem;
  color: #fff;
  margin-left: 5px;
}
.demo-video__thumb:hover .demo-video__play-btn {
  transform: translate(-50%, -50%) scale(1.15);
  background: rgba(249,115,22,1);
}
.demo-video__placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  overflow: hidden;
}
.demo-video__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(249,115,22,0.04), rgba(234,88,12,0.04));
  z-index: 0;
}
.demo-video__play {
  position: relative;
  z-index: 1;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 2px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  cursor: pointer;
}
.demo-video__play i {
  font-size: 1.2rem;
  color: var(--text-dim);
  margin-left: 4px;
}
.demo-video__placeholder:hover .demo-video__play {
  background: var(--gradient);
  border-color: transparent;
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(249,115,22,0.3);
}
.demo-video__placeholder:hover .demo-video__play i {
  color: #fff;
}
.demo-video__overlay {
  position: relative;
  z-index: 1;
}
.demo-video__overlay span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Video Modal */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.video-modal.is-open {
  opacity: 1;
  visibility: visible;
}
.video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
}
.video-modal__content {
  position: relative;
  width: 90vw;
  max-width: 960px;
  transform: scale(0.92);
  transition: transform 0.3s;
}
.video-modal.is-open .video-modal__content {
  transform: scale(1);
}
.video-modal__player {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: 12px;
  background: #000;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.video-modal__close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.video-modal__close:hover {
  background: rgba(255,255,255,0.25);
}
.demo-video__placeholder[data-video] {
  cursor: pointer;
}

/* ============================================================
   RESULTS — Two-row layout: top = eval+radar, bottom = L3
   ============================================================ */
.results {
  padding: 100px 0;
  background: var(--surface);
}

/* --- Row 1: Eval Framework + Radar side by side --- */
.results__row-top {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto 28px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .results__row-top {
    grid-template-columns: 1fr;
    max-width: 520px;
    gap: 20px;
  }
}

/* --- Row 2: L3 full width --- */
.results__row-bottom {
  max-width: 1100px;
  margin: 0 auto;
}

/* --- Common col --- */
.results__col {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 20px;
  transition: all 0.4s var(--ease);
  display: flex;
  flex-direction: column;
}
.results__col:hover {
  border-color: rgba(255,255,255,0.12);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}

/* Defs column */
.results__col--defs {
  padding: 20px 16px;
}
.results__col--defs .interactive-figure {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Radar column */
.results__col--radar {
  padding: 16px;
  overflow: visible;
}
.results__col--radar .interactive-figure {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: visible;
}

/* L3 full-width card */
.results__col--l3-full {
  padding: 28px 32px;
}
.results__col--l3-full .interactive-figure {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Column titles */
.results__col-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  text-align: center;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.results__col-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 20px;
}
.results__ref {
  text-align: center;
  margin-top: 32px;
}
.results__ref-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--accent);
  transition: all var(--transition);
  padding: 10px 24px;
  border-radius: 100px;
  background: rgba(249,115,22,0.08);
  border: 1px solid rgba(249,115,22,0.15);
}
.results__ref-link:hover {
  background: rgba(249,115,22,0.15);
  border-color: rgba(249,115,22,0.3);
  color: var(--text);
  transform: translateY(-2px);
}
.results__ref-link i {
  transition: transform var(--transition);
}
.results__ref-link:hover i {
  transform: translateX(4px);
}

/* ============================================================
   TEAM / CONTRIBUTORS
   ============================================================ */
.team {
  padding: 100px 0;
  background: var(--bg);
}
.team-card {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 48px);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.4s var(--ease);
}
.team-card:hover {
  border-color: rgba(255,255,255,0.12);
}
.team-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.team-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.team-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.team-row__role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  line-height: 1.6;
}
.team-row__names {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.85;
}
.team-row__names sup {
  color: var(--accent);
  font-size: 0.65em;
  margin: 0 1px;
  font-weight: 600;
}
.team-note {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px dashed rgba(255,255,255,0.06);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.team-note sup {
  color: var(--accent);
  font-weight: 600;
}
@media (max-width: 720px) {
  .team {
    padding: 72px 0;
  }
  .team-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 80px 0 40px;
  background: var(--surface-2);
  border-top: 1px solid rgba(255,255,255,0.04);
}
.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}
@media (max-width: 768px) {
  .footer__top { grid-template-columns: 1fr; gap: 40px; }
}
.footer__cite,
.footer__info {
  min-width: 0;
}
.footer__cite h3,
.footer__info h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer__bibtex {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 0;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.18) transparent;
}
.footer__bibtex::-webkit-scrollbar {
  height: 8px;
}
.footer__bibtex::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.18);
  border-radius: 4px;
}
.footer__bibtex::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.3);
}
.footer__bibtex::-webkit-scrollbar-track {
  background: transparent;
}
.footer__bibtex code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.7;
  white-space: pre;
  display: block;
}
.footer__link-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__link-list a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer__link-list a:hover { color: var(--accent); }

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.04);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================================
   SCROLL ANIMATIONS (data-aos)
   ============================================================ */
[data-aos] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-aos="fade-right"] { transform: translateX(-40px); }
[data-aos="fade-left"]  { transform: translateX(40px); }
[data-aos="zoom-in"]    { transform: scale(0.95); }
[data-aos].aos-animate {
  opacity: 1;
  transform: none;
}
[data-aos][data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos][data-aos-delay="200"] { transition-delay: 0.2s; }

/* ============================================================
   RESPONSIVE — Multi-breakpoint adaptive layout
   ============================================================ */

/* --- Ultra-wide: 4K / 2560px+ --- */
@media (min-width: 2560px) {
  :root { --max-w: 1400px; }
  .hero {
    padding-left: max(40px, calc((100vw - 1600px) / 2));
    padding-right: max(40px, calc((100vw - 1600px) / 2));
  }
  .hero__content { max-width: 560px; }
  .hero__visual { max-width: 700px; }
  .hero__img { max-height: 60vh; }
  .section-title { font-size: 2.6rem; }
  .pipeline__figure-wrap { max-width: 1100px; margin: 0 auto; }
  .results__row-top, .results__row-bottom { max-width: 1100px; margin-left: auto; margin-right: auto; }
}

/* --- Wide: 1920px+ --- */
@media (min-width: 1920px) and (max-width: 2559px) {
  :root { --max-w: 1300px; }
  .hero {
    padding-left: max(40px, calc((100vw - 1500px) / 2));
    padding-right: max(40px, calc((100vw - 1500px) / 2));
  }
  .hero__content { max-width: 540px; }
  .hero__visual { max-width: 680px; }
  .hero__img { max-height: 65vh; }
  .pipeline__figure-wrap { max-width: 1000px; margin: 0 auto; }
}

/* --- Large Desktop: 1440px–1919px --- */
@media (min-width: 1440px) and (max-width: 1919px) {
  .hero__visual { max-width: 660px; }
  .hero__img { max-height: 70vh; }
  .pipeline__figure-wrap { max-width: 960px; margin: 0 auto; }
}

/* --- Standard Desktop: 1200px–1439px --- */
@media (min-width: 1200px) and (max-width: 1439px) {
  .hero__visual { max-width: 580px; }
}

/* --- Tablet landscape & small laptop: 900px–1199px --- */
@media (max-width: 1199px) and (min-width: 901px) {
  .hero__content { max-width: 440px; }
  .hero__visual { max-width: 480px; }
  .contrib-grid { gap: 20px; }
}

/* --- Tablet / small screen: ≤ 900px --- */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 100px 24px 60px;
    min-height: auto;
  }
  .hero__content { max-width: 100%; padding: 0; }
  .hero__btns { justify-content: center; }
  .hero__visual { 
    margin-top: 40px; 
    max-width: 100%;
    padding: 0; 
  }
  .hero__img { max-height: 50vh; }
  .navbar__links { display: none; }
  .demo-case__body { grid-template-columns: 1fr; }
  .results__row-top { grid-template-columns: 1fr; max-width: 520px; }
  .results__row-bottom { max-width: 520px; }
  .contrib-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .abstract__inner { max-width: 100%; }
}

/* --- Mobile: ≤ 480px --- */
@media (max-width: 480px) {
  .hero { padding: 90px 16px 40px; }
  .hero__title-line--1 { font-size: 2.6rem; }
  .hero__title-line--2 { font-size: 2rem; }
  .hero__desc { font-size: 0.88rem; }
  .hero__btns { flex-direction: column; align-items: center; }
  .demo-case__header { padding: 16px 20px; }
  .demo-script__lines { padding: 16px 20px; }
  .contrib-grid { gap: 16px; }
  .section-title { font-size: 1.5rem; }
  .section-sub { font-size: 0.9rem; }
  .abstract__inner { flex-direction: column; gap: 16px; }
  .abstract__line { width: 100%; height: 3px; min-height: auto; }
  .footer__top { grid-template-columns: 1fr; gap: 32px; }
}

/* ============================================================
   SELECTION & SCROLLBAR
   ============================================================ */
::selection {
  background: rgba(249,115,22,0.3);
  color: #fff;
}
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

/* ============================================================
   PALETTE REFINEMENT — per-card accents & arch rebalance
   Orange reserved for hero; supporting hues differentiate data
   ============================================================ */

/* ---- Per-card contribution accents ---- */
.contrib-card { --card-accent: #f97316; --card-accent-rgb: 249,115,22; }
.contrib-card:nth-child(2) { --card-accent: #60a5fa; --card-accent-rgb: 96,165,250; }
.contrib-card:nth-child(3) { --card-accent: #a78bfa; --card-accent-rgb: 167,139,250; }

.contrib-card::before {
  background: linear-gradient(90deg, var(--card-accent), transparent);
}
.contrib-card:hover {
  border-color: rgba(var(--card-accent-rgb), 0.25);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35), 0 0 0 1px rgba(var(--card-accent-rgb),0.08);
}
.contrib-card .tag {
  background: rgba(var(--card-accent-rgb), 0.1);
  color: var(--card-accent);
  border: 1px solid rgba(var(--card-accent-rgb), 0.18);
}
.contrib-card__num {
  background: linear-gradient(135deg, rgba(var(--card-accent-rgb),0.14), rgba(255,255,255,0.02));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.contrib-card .bench-stat__num {
  background: linear-gradient(135deg, var(--card-accent), rgba(var(--card-accent-rgb),0.6));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---- Architecture: tone down blanket orange ---- */
/* Subagent chips use neutral surface; color only on icons */
.arch-subagent {
  background: rgba(255,255,255,0.03);
  border-color: rgba(255,255,255,0.06);
}
.arch-subagent:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}
.arch-subagent--custom {
  background: rgba(167,139,250,0.06);
  border-color: rgba(167,139,250,0.14);
}
.arch-subagent--custom i { color: #a78bfa; }
.arch-subagent--custom:hover {
  background: rgba(167,139,250,0.1);
  border-color: rgba(167,139,250,0.28);
}

/* Prompt/state-sync tag in blue for contrast with orange header */
.arch-tag--blue {
  background: rgba(96,165,250,0.12);
  color: #60a5fa;
  border: 1px solid rgba(96,165,250,0.22);
}

/* Input/Output IO cards — neutral with subtle orange hint on input only */
.arch-node--input .arch-node__icon-wrap--input {
  background: linear-gradient(135deg, rgba(249,115,22,0.18), rgba(249,115,22,0.06));
}
.arch-node--output .arch-node__icon-wrap--output {
  background: linear-gradient(135deg, rgba(52,211,153,0.18), rgba(52,211,153,0.06));
}
.arch-node--output .arch-node__icon-wrap--output i { color: #34d399; }

/* ---- Eval framework layer hues (L1 orange, L2 blue, L3 violet) ---- */
.eval-layer[data-level="L1"] { --layer-color: #f97316; }
.eval-layer[data-level="L2"] { --layer-color: #60a5fa; }
.eval-layer[data-level="L3"] { --layer-color: #a78bfa; }

/* ---- Radar legend dots slight glow for polish ---- */
.radar-legend__color { box-shadow: 0 0 8px currentColor; }