* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, sans-serif; background: #0b0d12; color: #f2f4f8; }
.page { min-height: 100vh; }
.hero { padding: 48px 24px 24px; border-bottom: 1px solid rgba(255,255,255,0.08); background: linear-gradient(180deg, #111522 0%, #0b0d12 100%); }
.hero-inner { max-width: 1200px; margin: 0 auto; }
.eyebrow { font-size: 12px; letter-spacing: 0.14em; color: #8fa8ff; margin-bottom: 8px; }
.hero h1 { margin: 0 0 10px; font-size: 42px; line-height: 1.1; }
.subtitle { margin: 0; color: #b4bfd1; max-width: 700px; }
.layout { max-width: 1200px; margin: 0 auto; padding: 24px; display: grid; grid-template-columns: 1.6fr 0.9fr; gap: 24px; }
.chat-panel, .card { background: #151925; border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; }
.chat-panel { padding: 18px; }
.chat-box { min-height: 520px; max-height: 520px; overflow-y: auto; padding: 8px; margin-bottom: 16px; background: #0f1320; border-radius: 12px; }
.msg { display: flex; margin-bottom: 12px; }
.msg.user { justify-content: flex-end; }
.msg.assistant { justify-content: flex-start; }
.bubble { max-width: 80%; padding: 12px 14px; border-radius: 14px; line-height: 1.45; }
.msg.user .bubble { background: #2f6fed; color: white; }
.msg.assistant .bubble { background: #202739; color: #f2f4f8; }
.examples { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.example-btn, .chat-form button { background: #202739; color: #f2f4f8; border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; cursor: pointer; }
.example-btn { padding: 8px 12px; }
.chat-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.chat-form input { width: 100%; padding: 14px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.12); background: #0f1320; color: white; }
.chat-form button { padding: 0 18px; }
.side-panel { display: grid; gap: 16px; }
.card { padding: 18px; }
.card h3 { margin-top: 0; }
.citation { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.citation:last-child { border-bottom: 0; }
.citation-title { font-weight: bold; margin-bottom: 6px; color: #8fa8ff; }
.citation-claim { margin-bottom: 6px; }
.citation-meta { font-size: 12px; color: #b4bfd1; }
@media (max-width: 960px) { .layout { grid-template-columns: 1fr; } .hero h1 { font-size: 30px; } }