/* ============================================================
   AetherAgent — Main Styles
   ============================================================ */

/* ── Custom Properties ─────────────────────────────────────── */
:root {
  --bg-obsidian: #0B0F19;
  --bg-elevated: #0F1421;
  --bg-card: #131929;
  --bg-card-hover: #171e30;
  --bg-glass: rgba(15, 20, 33, 0.7);

  --color-indigo: #4F46E5;
  --color-indigo-light: #6366F1;
  --color-indigo-dim: rgba(79, 70, 229, 0.15);
  --color-teal: #06B6D4;
  --color-teal-dim: rgba(6, 182, 212, 0.15);
  --color-purple: #8B5CF6;
  --color-purple-dim: rgba(139, 92, 246, 0.15);

  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.85);
  --text-muted: rgba(255, 255, 255, 0.7);

  --border: rgba(255, 255, 255, 0.07);
  --border-bright: rgba(255, 255, 255, 0.12);

  --gradient-primary: linear-gradient(135deg, var(--color-indigo), var(--color-teal));
  --gradient-text: linear-gradient(135deg, #818CF8 0%, #06B6D4 100%);

  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-glow-indigo: 0 0 40px rgba(79, 70, 229, 0.3);
  --shadow-glow-teal: 0 0 40px rgba(6, 182, 212, 0.25);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --container-max: 1200px;
  --section-gap: 120px;
  --nav-height: 68px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-obsidian);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ── Container ──────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 0 0 rgba(79,70,229,0);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(79, 70, 229, 0.5);
}
.btn-primary:active { transform: translateY(0); }

.btn-glow {
  animation: pulse-glow 3s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px rgba(79,70,229,0.4), 0 0 24px rgba(79,70,229,0.2); }
  50% { box-shadow: 0 0 16px rgba(79,70,229,0.7), 0 0 40px rgba(6,182,212,0.3); }
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-bright);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(79, 70, 229, 0.5);
}
.btn-outline:hover {
  background: var(--color-indigo-dim);
  border-color: var(--color-indigo);
}

.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Gradient text (now solid white) ─────────────────────────── */
.gradient-text {
  color: #FFFFFF;
}

/* ── Navigation ─────────────────────────────────────────────── */
.nav-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}
.nav-wrapper.scrolled {
  background: rgba(11, 15, 25, 0.92);
  box-shadow: 0 4px 32px rgba(0,0,0,0.4);
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
}
.nav-logo-svg {
  height: 52px;
  width: auto;
  display: block;
  flex-shrink: 0;
}
.footer-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}
.footer-logo-svg {
  height: 48px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-links a {
  padding: 6px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}
.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}
.nav-cta { margin-left: 8px; }

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
}
.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}
.nav-mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  gap: 4px;
}
.nav-mobile-menu a {
  padding: 10px 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.nav-mobile-menu a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-mobile-menu .btn { margin-top: 8px; justify-content: center; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 60px) 0 80px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.hero-glow-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79,70,229,0.2) 0%, transparent 70%);
  top: -100px;
  left: -200px;
}
.hero-glow-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6,182,212,0.15) 0%, transparent 70%);
  bottom: -50px;
  right: -100px;
}
.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(79, 70, 229, 0.12);
  border: 1px solid rgba(79, 70, 229, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-indigo-light);
  margin-bottom: 32px;
}
.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-teal);
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-headline {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.hero-deploy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding: 16px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.hero-deploy-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.hero-deploy-item svg { color: var(--color-teal); flex-shrink: 0; }
.hero-deploy-item strong { color: var(--text-primary); font-weight: 600; }
.hero-deploy-divider {
  width: 1px;
  height: 20px;
  background: var(--color-border);
}
@media (max-width: 768px) {
  .hero-deploy { flex-direction: column; gap: 12px; }
  .hero-deploy-divider { display: none; }
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.play-icon {
  display: inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 9px;
  border-color: transparent transparent transparent currentColor;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); }
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-bright);
}

/* ── Section Base ───────────────────────────────────────────── */
.section { padding: var(--section-gap) 0; }
.section-dark {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(79,70,229,0.1);
  border: 1px solid rgba(79,70,229,0.25);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-indigo-light);
  margin-bottom: 20px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Comparison Table ───────────────────────────────────────── */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.comparison-card {
  position: relative;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
}
.comparison-legacy { opacity: 0.9; }
.comparison-aether {
  border-color: rgba(79,70,229,0.3);
  background: linear-gradient(135deg, rgba(79,70,229,0.05) 0%, rgba(6,182,212,0.03) 100%);
}
.comparison-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(79,70,229,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.comparison-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}
.comparison-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.legacy-icon { background: rgba(107,114,128,0.15); color: var(--text-muted); }
.aether-icon { background: var(--color-indigo-dim); color: var(--color-indigo-light); }

.comparison-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.comparison-badge {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 10px;
  border-radius: var(--radius-full);
}
.legacy-badge { background: rgba(107,114,128,0.15); color: var(--text-muted); }
.aether-badge { background: var(--color-indigo-dim); color: var(--color-indigo-light); }

.comparison-list { display: flex; flex-direction: column; gap: 20px; }
.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.item-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}
.item-no { background: rgba(107,114,128,0.15); color: var(--text-muted); }
.item-yes { background: rgba(16,185,129,0.15); color: #34D399; }
.comparison-item strong { font-size: 0.9rem; font-weight: 600; display: block; margin-bottom: 2px; }
.comparison-item p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.55; }

/* ── Architecture Playground ────────────────────────────────── */
.playground {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 28px;
  align-items: start;
}
.playground-controls {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.controls-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.agent-profiles { display: flex; flex-direction: column; gap: 8px; }
.profile-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: left;
  transition: all var(--transition-base);
}
.profile-btn:hover {
  border-color: rgba(79,70,229,0.4);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.profile-btn.active {
  border-color: rgba(79,70,229,0.6);
  background: var(--color-indigo-dim);
  color: var(--text-primary);
  box-shadow: 0 0 0 1px rgba(79,70,229,0.3);
}
.profile-icon { color: var(--color-indigo-light); flex-shrink: 0; }
.profile-btn.active .profile-icon { color: var(--color-teal); }

.pipeline-diagram {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-top: 4px;
}
.pipeline-step {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.pipeline-step.active { color: var(--color-teal); }
.step-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background var(--transition-fast);
}
.pipeline-step.active .step-indicator {
  background: var(--color-teal);
  box-shadow: 0 0 6px var(--color-teal);
  animation: blink 1s ease-in-out infinite;
}
.pipeline-arrow { font-size: 0.75rem; color: var(--text-muted); padding: 0 2px; }

/* ── Terminal ───────────────────────────────────────────────── */
.terminal-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-bright);
  background: #080C14;
  box-shadow: var(--shadow-md);
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #0D1117;
  border-bottom: 1px solid var(--border);
}
.terminal-dots { display: flex; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: #FF5F56; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #27C93F; }
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  flex: 1;
}
.terminal-run {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(79,70,229,0.15);
  border: 1px solid rgba(79,70,229,0.4);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-indigo-light);
  transition: all var(--transition-fast);
}
.terminal-run:hover { background: rgba(79,70,229,0.25); border-color: var(--color-indigo); }
.terminal-run:disabled { opacity: 0.5; cursor: not-allowed; }

.terminal-body {
  padding: 20px 24px;
  min-height: 360px;
  max-height: 420px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
}
.terminal-placeholder {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.terminal-placeholder strong { color: var(--color-indigo-light); }
.terminal-line {
  display: flex;
  gap: 10px;
  animation: line-in 0.3s ease;
}
@keyframes line-in {
  from { opacity: 0; transform: translateX(-4px); }
  to { opacity: 1; transform: translateX(0); }
}
.terminal-line .ts {
  color: var(--text-muted);
  flex-shrink: 0;
  user-select: none;
}
.terminal-line .phase {
  font-weight: 700;
  flex-shrink: 0;
  min-width: 130px;
}
.terminal-line .msg { color: #D1D5DB; }
.phase-perceive { color: #60A5FA; }
.phase-plan { color: #A78BFA; }
.phase-tool { color: #F59E0B; }
.phase-reflect { color: #F97316; }
.phase-achieve { color: #34D399; }
.phase-error { color: #F87171; }
.phase-info { color: var(--text-muted); }
.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--color-teal);
  vertical-align: middle;
  animation: cursor-blink 1s step-end infinite;
}
@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ── Features Grid ──────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card-wide { grid-column: span 2; }
.feature-card-deploy {
  border-color: var(--color-teal-dim);
  background: linear-gradient(135deg, var(--color-surface), var(--color-teal-dim) 120%);
}
.feature-card {
  position: relative;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  overflow: hidden;
}
.feature-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.feature-glow {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(79,70,229,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-icon-wrap.indigo { background: var(--color-indigo-dim); color: var(--color-indigo-light); }
.feature-icon-wrap.teal { background: var(--color-teal-dim); color: var(--color-teal); }
.feature-icon-wrap.purple { background: var(--color-purple-dim); color: var(--color-purple); }

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}
.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  padding: 3px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ── CTA Section ────────────────────────────────────────────── */
.cta-section {
  position: relative;
  padding: var(--section-gap) 0;
  text-align: center;
  overflow: hidden;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}
.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(79,70,229,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.cta-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  padding-top: var(--section-gap);
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.6fr;
  gap: 60px;
  padding-bottom: 60px;
}
.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-logo { margin-bottom: 4px; }
.footer-tagline { font-size: 0.9rem; color: var(--text-muted); }

.footer-links { display: flex; gap: 40px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--text-primary); }

.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-desc { font-size: 0.875rem; color: var(--text-muted); line-height: 1.5; }
.footer-contact-list { display: flex; flex-direction: column; gap: 10px; }
.footer-contact-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer-contact-link:hover { color: var(--text-primary); }
.footer-contact-btn { margin-top: 4px; align-self: flex-start; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-muted); transition: color var(--transition-fast); }
.footer-bottom-links a:hover { color: var(--text-primary); }

/* ── Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: overlay-in 0.2s ease;
}
.modal-overlay[hidden] { display: none; }
@keyframes overlay-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
.modal-card {
  position: relative;
  width: 100%;
  max-width: 520px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-xl);
  padding: 40px;
  overflow: hidden;
  animation: card-in 0.25s ease;
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(79,70,229,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}
.modal-close:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.modal-icon {
  width: 56px;
  height: 56px;
  background: var(--color-indigo-dim);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-indigo-light);
  margin-bottom: 20px;
}
.modal-title { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px; }
.modal-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 28px; }

.modal-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.form-input {
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition-fast);
  width: 100%;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus { border-color: rgba(79,70,229,0.6); box-shadow: 0 0 0 3px rgba(79,70,229,0.12); }
.form-select { appearance: none; cursor: pointer; }
.captcha-error { color: #ef4444; font-size: 0.8rem; margin-top: 4px; }
.h-captcha { margin-top: 4px; }

.modal-success {
  text-align: center;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: card-in 0.25s ease;
}
.modal-success[hidden] { display: none; }
.success-icon { color: #34D399; }
.modal-success h3 { font-size: 1.3rem; font-weight: 700; }
.modal-success p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

.demo-success {
  text-align: center;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: card-in 0.25s ease;
}
.demo-success[hidden] { display: none; }
.demo-success-icon {
  color: #34D399;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(52, 211, 153, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}
.demo-success .modal-desc { margin-bottom: 8px; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card-wide { grid-column: span 2; }
  .playground { grid-template-columns: 1fr; }
  .pipeline-diagram { display: none; }
}

@media (max-width: 768px) {
  :root { --section-gap: 80px; }
  .comparison-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card-wide { grid-column: span 1; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
  .nav-links, .nav-cta { display: none; }
  .nav-mobile-toggle { display: flex; }
  .nav-mobile-menu.open { display: flex; }
  .playground { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .stat-divider { display: none; }
}

@media (max-width: 480px) {
  .modal-card { padding: 28px 20px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; justify-content: center; }
}