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36px);display:grid;grid-template-rows:auto 1fr auto;gap:16px;border-radius:28px;padding:18px;background:#ffffff08;border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 80px #00000042}.repository-bar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding:18px;border-radius:22px;background:#ffffff08;border:1px solid rgba(255,255,255,.06)}.repository-controls{flex:1;min-width:min(100%,420px);display:flex;gap:12px}.repository-controls input{flex:1}.message-list{overflow-y:auto;padding:8px 6px;display:flex;flex-direction:column;gap:14px}.message-row{display:flex}.message-row-user{justify-content:flex-end}.message-row-assistant{justify-content:flex-start}.message-bubble{max-width:min(78%,720px);padding:16px 18px;border-radius:22px;white-space:pre-wrap;word-break:break-word}.user-bubble{background:#f4f4f5;color:#111827;border-bottom-right-radius:8px}.assistant-bubble{background:#ffffff0f;color:#e5e7eb;border:1px solid rgba(255,255,255,.08);border-bottom-left-radius:8px}.composer{display:flex;gap:12px;padding:16px;border-radius:24px;background:#ffffff08;border:1px solid rgba(255,255,255,.08)}.composer textarea{resize:none;min-height:56px;max-height:180px}.send-button{min-width:112px}@keyframes floatIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.hero-card{padding-top:44px}.hero-card h1{font-size:clamp(2.5rem,12vw,4rem)}.chat-page{padding:10px}.chat-shell{height:calc(100vh - 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