:root{--bg-primary:#fafafa;--bg-secondary:#f5f5f7;--bg-tertiary:#ebebed;--text-primary:#1d1d1f;--text-secondary:#6e6e73;--text-muted:#8e8e93;--text-inverse:#fff;--border-color:#d1d1d6;--border-hover:#c7c7cc;--accent-primary:#007aff;--accent-secondary:#0056b3;--accent-light:#007aff14;--success:#34c759;--warning:#ff9500;--error:#ff3b30;--max-width:1200px;--header-height:56px;--chat-max-width:720px;--chat-bubble-max:80%;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:18px;--radius-full:9999px;--line-height-tight:1.35;--line-height-normal:1.55;--line-height-relaxed:1.65;--line-height-loose:1.8;--para-spacing:1em;--max-reading-width:65ch;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 2px 8px #0000000f;--shadow-lg:0 4px 16px #00000014;--transition:all .15s ease-out;--transition-fast:all .1s ease-out}@media (prefers-color-scheme:dark){:root{--bg-primary:#000;--bg-secondary:#1c1c1e;--bg-tertiary:#2c2c2e;--text-primary:#f5f5f7;--text-secondary:#a1a1a6;--text-muted:#8e8e93;--text-inverse:#1d1d1f;--border-color:#38383a;--border-hover:#48484a;--accent-primary:#0a84ff;--accent-secondary:#409cff;--accent-light:#0a84ff1f;--shadow-sm:0 1px 2px #0003;--shadow-md:0 2px 8px #0000004d;--shadow-lg:0 4px 16px #0006}}*{box-sizing:border-box;margin:0;padding:0}html,body{max-width:100vw;height:100%;overflow-x:hidden}body{color:var(--text-primary);background:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,SF Pro Arabic,Segoe UI,Roboto,Helvetica Neue,sans-serif;line-height:var(--line-height-normal);letter-spacing:-.01em;text-rendering:optimizeLegibility;font-feature-settings:"liga" 1,"calt" 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var(--border-color);align-items:center;gap:8px;padding:6px 12px;display:flex}.health-dot{background:var(--text-muted);width:8px;height:8px;transition:var(--transition);border-radius:50%}.health-dot.healthy{background:var(--success);box-shadow:0 0 8px var(--success)}.health-dot.unhealthy{background:var(--error)}.health-dot.loading{background:var(--warning);animation:1.5s infinite pulse}.chat-container{width:100%;height:calc(100vh - var(--header-height));flex-direction:column;flex:1;padding:0 20px;display:flex;position:relative;overflow:hidden}.chat-container .header{flex-shrink:0;margin:0 -20px;padding:0 20px}.chat-messages{flex-direction:column;flex:1;align-items:stretch;gap:24px;width:100%;min-height:0;padding:20px 0;display:flex;overflow-y:auto}.chat-messages::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-track{background:0 0}.chat-messages::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full);transition:background 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.message-text{background:linear-gradient(135deg,var(--accent-primary)0%,var(--accent-secondary)100%);color:#fff;border-color:#0000}.chat-message.user .message-text code,.chat-message[data-role=user] .message-text code{color:#fff;background:#ffffff26;border-color:#fff3}.chat-message.user .message-text pre,.chat-message[data-role=user] .message-text pre{background:#ffffff14;border-color:#fff3}.chat-message.user .message-text strong,.chat-message[data-role=user] .message-text strong,.chat-message.user .message-text h1,.chat-message.user .message-text h2,.chat-message.user .message-text h3,.chat-message.user .message-text h4,.chat-message.user .message-text h5,.chat-message.user .message-text h6{color:#fff}.message-sources{margin-block-start:14px}.sources-toggle{background:linear-gradient(135deg,var(--bg-tertiary)0%,var(--bg-secondary)100%);border:2px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;align-items:center;gap:8px;padding:8px 14px;font-size:12px;font-weight:500;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.sources-toggle:hover{background:var(--bg-secondary);border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.sources-toggle:active{transform:translateY(0)}.sources-list{flex-direction:column;gap:12px;margin-block-start:14px;animation:.3s cubic-bezier(.16,1,.3,1) slideDown;display:flex}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.source-item{background:linear-gradient(135deg,var(--bg-tertiary)0%,var(--bg-secondary)100%);border:2px solid var(--border-color);border-radius:var(--radius-lg);font-size:14px;line-height:var(--line-height-relaxed);padding:18px 20px;transition:all .3s cubic-bezier(.16,1,.3,1);position:relative}.source-item:before{content:"";background:var(--accent-primary);border-radius:var(--radius-lg)0 0 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var(--border-color);border-radius:var(--radius-xl);align-items:flex-end;gap:12px;padding:12px 16px;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex;box-shadow:0 2px 8px #0000000a}.chat-input-container:hover{border-color:var(--accent-primary);box-shadow:0 4px 16px #00000014}.chat-input-container:focus-within{border-color:var(--accent-primary);box-shadow:0 4px 20px #0000001a,0 0 0 4px var(--accent-light);background:var(--bg-primary)}.chat-input{color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;min-height:24px;max-height:150px;padding:6px 0;font-family:inherit;font-size:15px;line-height:1.5}.chat-input::placeholder{color:var(--text-muted);opacity:.7}.chat-send-btn{border-radius:var(--radius-full);background:linear-gradient(135deg,var(--accent-primary)0%,var(--accent-secondary)100%);color:#fff;cursor:pointer;width:40px;height:40px;box-shadow:0 4px 12px var(--accent-light),0 2px 6px 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(max-width:768px){.sidebar{display:none}.main-content{margin-inline-start:0}.page-content{padding:16px}.header{padding-inline:16px}.chat-message{gap:12px;max-width:95%}.chat-container{padding-inline:12px}.chat-message{max-width:100%}.message-content{flex:auto;width:100%;max-width:100%}.message-avatar{width:36px;height:36px}.source-header{flex-direction:column;align-items:flex-start;gap:6px}.source-score{margin-inline-start:0}.chat-input-form{padding:16px 0}.chat-suggestions{grid-template-columns:1fr}.suggestion-btn{padding:16px}}.sidebar-header{height:var(--header-height);border-bottom:1px solid var(--border-color);align-items:center;padding:0 24px;display:flex}.logo-text{color:var(--text-primary);letter-spacing:-.3px;font-size:17px;font-weight:500}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:24px 16px;display:flex;overflow-y:auto}.nav-link{border-radius:var(--radius-md);color:var(--text-secondary);transition:var(--transition);align-items:center;gap:12px;padding:12px 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solid var(--border-color);border-radius:var(--radius-lg);transition:var(--transition);cursor:pointer;flex-direction:column;gap:12px;padding:24px;display:flex;position:relative;overflow:hidden}.action-card:before{content:"";background:var(--accent-primary);opacity:0;width:100%;height:3px;transition:var(--transition);position:absolute;top:0;left:0}.action-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.action-card:hover:before{opacity:1}.action-title{color:var(--text-primary);align-items:center;gap:10px;font-size:16px;font-weight:600;display:flex}.action-description{color:var(--text-secondary);font-size:14px;line-height:1.5}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);padding:28px}.card-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:28px;padding-bottom:20px;display:flex}.card-title{color:var(--text-primary);font-size:20px;font-weight:700;line-height:var(--line-height-tight)}.form-group{margin-bottom:20px}.form-row{grid-template-columns:1fr 1fr;gap:20px;display:grid}.form-label{color:var(--text-secondary);margin-bottom:8px;font-size:13px;font-weight:500;display:block}.form-input{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:var(--transition);outline:none;padding:12px 16px;font-size:14px}.form-input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-light);background:var(--bg-secondary)}.form-textarea{resize:vertical;min-height:100px;font-family:Geist Mono,monospace}.btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);border:none;outline:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:500;display:inline-flex}.btn-primary{background:var(--accent-primary);color:#fff;box-shadow:0 4px 12px var(--accent-light)}.btn-primary:hover:not(:disabled){background:var(--accent-secondary);transform:translateY(-1px)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--text-muted)}.btn-danger{color:var(--error);background:#e830301a;border:1px solid #e8303033}.btn-danger:hover:not(:disabled){background:#e8303033}.btn:disabled{opacity:.6;cursor:not-allowed}.alert{border-radius:var(--radius-md);align-items:center;gap:12px;margin-bottom:24px;padding:16px;font-size:14px;animation:.3s ease-out slideIn;display:flex}.alert-success{color:var(--success);background:#14b8661a;border:1px solid #14b86633}.alert-error{color:var(--error);background:#e830301a;border:1px solid #e8303033}.page-title{color:var(--text-primary);letter-spacing:-1px;margin-bottom:8px;font-size:28px;font-weight:700}.page-description{color:var(--text-secondary);max-width:600px;margin-bottom:32px;font-size:16px}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin}.response-container{background:var(--bg-tertiary);border-radius:var(--radius-md);color:var(--text-secondary);padding:16px;font-family:Geist Mono,monospace;font-size:13px;overflow-x:auto}[lang=ar],[dir=rtl]{text-align:start;letter-spacing:.01em;font-family:Cairo,Noto Sans Arabic,Segoe UI,Tahoma,sans-serif}[lang=ar] h1,[lang=ar] h2,[lang=ar] h3,[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3{letter-spacing:-.01em;font-weight:700}[lang=ar] p,[dir=rtl] 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