*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;height:100vh;overflow:hidden}#root{height:100vh}.login-page{display:flex;align-items:center;justify-content:center;height:100vh;background:linear-gradient(135deg,#232f3e,#1a73e8)}.login-card{background:#fff;padding:48px 40px;border-radius:12px;box-shadow:0 20px 60px #0000004d;width:100%;max-width:400px;text-align:center}.login-card h1{color:#232f3e;font-size:28px;margin-bottom:8px}.login-subtitle{color:#666;margin-bottom:32px;font-size:14px}.login-card input{width:100%;padding:12px 16px;margin-bottom:16px;border:1px solid #ddd;border-radius:8px;font-size:14px;transition:border-color .2s}.login-card input:focus{outline:none;border-color:#f90;box-shadow:0 0 0 3px #ff99001a}.login-card button{width:100%;padding:12px;background:#f90;color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background .2s}.login-card button:hover{background:#ec7211}.new-password-prompt{color:#666;margin-bottom:16px;font-size:14px}.error{color:#d32f2f;margin-top:16px;font-size:13px}.chat-container{display:flex;flex-direction:column;height:100vh}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:#232f3e;color:#fff}.chat-header h1{font-size:20px;font-weight:600}.header-controls{display:flex;align-items:center;gap:12px}.model-select{padding:8px 12px;background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:6px;font-size:13px;cursor:pointer;transition:all .2s;-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.model-select:hover{background:#ffffff26;border-color:#fff9}.model-select:focus{outline:none;border-color:#f90}.model-select option{background:#232f3e;color:#fff}.logout-btn{padding:8px 16px;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:6px;cursor:pointer;font-size:13px;transition:all .2s}.logout-btn:hover{background:#ffffff1a;border-color:#fff9}.messages{flex:1;overflow-y:auto;padding:24px;background:#f5f5f5}.welcome-message{text-align:center;color:#666;margin-top:40%;font-size:18px}.message{display:flex;margin-bottom:16px}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message-content{max-width:70%}.bubble{padding:12px 16px;border-radius:12px;font-size:14px;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}.message.user .bubble{background:#232f3e;color:#fff;border-bottom-right-radius:4px}.message.assistant .bubble{background:#fff;color:#333;border:1px solid #e0e0e0;border-bottom-left-radius:4px}.bubble.thinking{color:#888;font-style:italic}.metrics-panel{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:6px;padding:8px 12px;background:#f8f9fa;border:1px solid #e8e8e8;border-radius:6px;font-size:11px;color:#666}.metrics-panel .metric{white-space:nowrap}.metrics-panel .metric strong{color:#444;font-weight:600}.metrics-panel .cache-metric{color:#2e7d32;font-weight:500}.input-area{padding:12px 24px 16px;background:#fff;border-top:1px solid #e0e0e0}.input-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.upload-section{display:flex;align-items:center}.upload-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;cursor:pointer;font-size:18px;background:#f0f0f0;border:1px solid #ddd;transition:all .2s}.upload-btn:hover{background:#e0e0e0;border-color:#ccc}.document-indicator{display:flex;align-items:center;gap:6px;padding:6px 12px;background:#e8f5e9;border:1px solid #c8e6c9;border-radius:6px;font-size:12px}.doc-icon{font-size:14px}.doc-name{font-weight:600;color:#2e7d32;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.doc-status{color:#388e3c}.doc-clear{background:none;border:none;color:#666;cursor:pointer;font-size:14px;padding:0 4px;line-height:1}.doc-clear:hover{color:#d32f2f}.input-main{display:flex;align-items:flex-end;gap:12px}.input-main textarea{flex:1;padding:12px 16px;border:1px solid #ddd;border-radius:8px;font-size:14px;font-family:inherit;resize:none;max-height:120px;transition:border-color .2s}.input-main textarea:focus{outline:none;border-color:#f90;box-shadow:0 0 0 3px #ff99001a}.input-main button{padding:12px 24px;background:#f90;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap}.input-main button:hover:not(:disabled){background:#ec7211}.input-main button:disabled{background:#ccc;cursor:not-allowed}