@font-face {
  font-family: 'Inter';
  src: url('/fonts/InterVariable.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}
:root {
  --bg: #0a0e17;
  --bg-card: #111724;
  --bg-card-hover: #1a2536;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border: #1f293d;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --radius: 14px;
  --radius-sm: 8px;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  scroll-behavior: smooth;
  scroll-padding-top: 30px;
}
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: none; background: none; }
button:focus-visible, a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--accent);
  color: #000;
  padding: 8px 16px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  z-index: 10000;
}
.skip-link:focus { top: 20px; }
.wrap {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 4px;
}
.brand-ai {
  background: var(--accent);
  color: #000;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 900;
}
.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav a:hover { color: var(--text); }
.lang-switch {
  display: flex;
  gap: 6px;
  background: var(--bg-card);
  padding: 3px;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.lang-switch a {
  padding: 3px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 4px;
  color: var(--text-muted);
}
.lang-switch a[aria-current="page"] {
  background: var(--accent);
  color: #000;
}
.menu-toggle { display: none; padding: 6px; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.button-dark {
  background: var(--accent);
  color: #000;
}
.button-dark:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.button-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.button-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.button-small {
  padding: 6px 14px;
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.button-small:hover { border-color: var(--accent); color: var(--accent); }
.eyebrow {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 70px 0 60px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-intro {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
  max-width: 540px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.hero-note {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.hero-preview {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.preview-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
  margin-bottom: 18px;
}
.preview-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px #22c55e;
}
.preview-tag {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 2px 8px;
  border-radius: 4px;
}
.preview-scenario-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.preview-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.preview-mini-chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mini-bubble {
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.85rem;
  max-width: 85%;
}
.mini-bubble.user {
  background: #1e293b;
  align-self: flex-start;
  color: var(--text);
}
.mini-bubble.bot {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  align-self: flex-end;
  color: #fde68a;
}
.preview-caption {
  font-size: 0.72rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 14px;
}
.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 40px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-intro {
  color: var(--text-muted);
  font-size: 1rem;
}
.demo-section {
  background: #06090e;
  padding: 70px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.demo-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 28px;
}
.scenario-selector {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.scenario-selector button {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: left;
  transition: all 0.2s;
}
.scenario-selector button:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}
.scenario-selector button[aria-selected="true"] {
  border-color: var(--accent);
  background: rgba(245, 158, 11, 0.08);
}
.tab-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  color: var(--accent);
  flex-shrink: 0;
}
.scenario-selector button strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.scenario-selector button small {
  font-size: 0.8rem;
  color: var(--text-dim);
  display: block;
}
.scenario-selector button svg:last-child {
  margin-left: auto;
  opacity: 0.4;
  flex-shrink: 0;
}
.chat-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.agent-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.agent-avatar {
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: #000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.8rem;
}
.agent-info strong { display: block; font-size: 0.95rem; }
.agent-info small { color: #22c55e; font-size: 0.75rem; font-weight: 600; }
.demo-badge {
  font-size: 0.75rem;
  color: var(--text-dim);
  background: rgba(255,255,255,0.05);
  padding: 4px 10px;
  border-radius: 6px;
}
.chat-messages {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 320px;
}
.bubble {
  max-width: 80%;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
  white-space: pre-line;
}
.bubble-sender {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  margin-bottom: 4px;
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.bubble.user {
  background: #1e293b;
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}
.bubble.bot {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: #fef08a;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}
.chat-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.chat-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.features-section { padding: 80px 0; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 10px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.feature-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}
.channels-section {
  padding: 70px 0;
  border-top: 1px solid var(--border);
}
.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.channel-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.channel-card h3 { font-size: 1rem; margin-bottom: 2px; }
.channel-card p { font-size: 0.8rem; color: var(--text-muted); }
.channel-tag {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 700;
  background: rgba(255,255,255,0.05);
  color: var(--text-dim);
  padding: 3px 8px;
  border-radius: 4px;
}
.channels-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.channels-cta p { color: var(--text-muted); font-size: 0.95rem; }
.faq-section { padding: 70px 0; border-top: 1px solid var(--border); }
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-list details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 24px;
  transition: border-color 0.2s;
}
.faq-list details[open] { border-color: var(--accent); }
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary svg { opacity: 0.5; transition: transform 0.2s; }
.faq-list details[open] summary svg { transform: rotate(45deg); }
.faq-list details p {
  margin-top: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}
.final-cta { padding: 80px 0 100px; }
.final-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, #17202f 100%);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 50px;
  text-align: center;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}
.final-card h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.2;
  margin-bottom: 16px;
}
.final-card p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 580px;
  margin: 0 auto 30px;
}
.final-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer {
  margin-top: auto;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-left p {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 6px;
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
}
.footer-link-btn {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.15s;
}
.footer-link-btn:hover { color: var(--accent); }
.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.footer-links a:hover { color: var(--text); }
.icon-svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding: 40px 0; }
  .demo-layout { grid-template-columns: 1fr; }
  .header .nav { display: none; }
  .menu-toggle { display: block; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 20px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    z-index: 1000;
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
  }
  .channels-cta { flex-direction: column; text-align: center; gap: 16px; }
  .footer { flex-direction: column; gap: 20px; text-align: center; }
}