:root{--bg-base: #09090b;--bg-layer-1: #111113;--bg-layer-2: #18181b;--bg-layer-3: #27272a;--bg-hover: #2a2a2e;--border-subtle: rgba(255, 255, 255, .06);--border-default: rgba(255, 255, 255, .1);--border-strong: rgba(255, 255, 255, .16);--text-primary: #fafafa;--text-secondary: #a1a1aa;--text-muted: #71717a;--text-inverse: #09090b;--accent: #d4a843;--accent-hover: #e0b85a;--accent-muted: rgba(212, 168, 67, .15);--accent-glow: rgba(212, 168, 67, .08);--danger: #ef4444;--success: #22c55e;--info: #3b82f6;--user-bubble-bg: #d4a843;--user-bubble-text: #09090b;--ai-bubble-bg: #1e1e22;--ai-bubble-border: rgba(255, 255, 255, .08);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .8125rem;--font-size-base: .9375rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--sidebar-width: 280px;--input-bar-height: auto;--chat-max-width: 780px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px var(--accent-glow);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .4s ease;--glass-bg: rgba(24, 24, 27, .7);--glass-blur: blur(12px)}[data-theme=light]{--bg-base: #f5f5f5;--bg-layer-1: #ffffff;--bg-layer-2: #f0f0f2;--bg-layer-3: #e4e4e7;--bg-hover: #dcdce0;--border-subtle: rgba(0, 0, 0, .06);--border-default: rgba(0, 0, 0, .12);--border-strong: rgba(0, 0, 0, .18);--text-primary: #18181b;--text-secondary: #52525b;--text-muted: #a1a1aa;--text-inverse: #fafafa;--accent: #b8902e;--accent-hover: #a37e24;--accent-muted: rgba(184, 144, 46, .12);--accent-glow: rgba(184, 144, 46, .06);--danger: #dc2626;--success: #16a34a;--info: #2563eb;--user-bubble-bg: #b8902e;--user-bubble-text: #ffffff;--ai-bubble-bg: #ffffff;--ai-bubble-border: rgba(0, 0, 0, .08);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12);--glass-bg: rgba(255, 255, 255, .8)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);background:var(--bg-base);color:var(--text-primary);line-height:1.6;overflow:hidden;height:100vh;width:100vw;transition:background var(--transition-base),color var(--transition-base)}a{color:var(--accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-hover);text-decoration:underline}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-layer-3);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}#app{display:flex;height:100vh;width:100vw;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);height:100vh;background:var(--bg-layer-1);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;padding:var(--spacing-lg);transition:transform var(--transition-base),background var(--transition-base);z-index:100}.sidebar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-xl)}.logo{display:flex;align-items:center;gap:var(--spacing-sm)}.logo-icon{font-size:1.4rem}.logo-text{font-size:var(--font-size-lg);font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.logo-accent{color:var(--accent)}.btn-new-chat{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--border-default);border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.btn-new-chat:hover{background:var(--accent-muted);border-color:var(--accent);color:var(--accent)}.sidebar-section{overflow-y:auto;flex-shrink:0;max-height:45%}.sidebar-label{font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:var(--spacing-md)}.quick-topics{display:flex;flex-direction:column;gap:var(--spacing-xs)}.quick-topic-btn{display:flex;align-items:center;gap:var(--spacing-sm);padding:10px 12px;border:1px solid transparent;border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast);text-align:left;width:100%}.quick-topic-btn:hover{background:var(--bg-layer-2);border-color:var(--border-default);color:var(--text-primary)}.quick-topic-btn:active{background:var(--accent-muted);border-color:var(--accent);color:var(--accent)}.quick-topic-emoji{font-size:1.1rem;width:24px;text-align:center;flex-shrink:0}.sidebar-history{flex:1;min-height:120px;display:flex;flex-direction:column;border-top:1px solid var(--border-subtle);padding-top:var(--spacing-md);margin-top:var(--spacing-sm)}.chat-history-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.history-empty{font-size:var(--font-size-xs);color:var(--text-muted);padding:var(--spacing-sm) var(--spacing-sm);font-style:italic}.history-item{display:flex;align-items:center;border-radius:var(--radius-md);transition:background var(--transition-fast)}.history-item:hover{background:var(--bg-layer-2)}.history-item.active{background:var(--accent-muted)}.history-item-btn{flex:1;display:flex;align-items:center;gap:var(--spacing-sm);padding:8px 10px;border:none;background:transparent;color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);cursor:pointer;text-align:left;min-width:0}.history-item.active .history-item-btn{color:var(--accent)}.history-item-icon{font-size:.9rem;flex-shrink:0}.history-item-info{display:flex;flex-direction:column;min-width:0}.history-item-title{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:var(--font-size-sm);line-height:1.3}.history-item-meta{font-size:var(--font-size-xs);color:var(--text-muted);line-height:1.3}.history-item-delete{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-muted);cursor:pointer;opacity:0;transition:all var(--transition-fast);flex-shrink:0;margin-right:4px}.history-item:hover .history-item-delete{opacity:1}.history-item-delete:hover{background:#ef444426;color:var(--danger)}.sidebar-footer{padding-top:var(--spacing-md);border-top:1px solid var(--border-subtle);margin-top:var(--spacing-md)}.btn-settings{display:flex;align-items:center;gap:var(--spacing-sm);padding:10px 12px;width:100%;border:none;border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-settings:hover{background:var(--bg-layer-2);color:var(--text-primary)}.btn-sidebar-toggle{display:none;position:fixed;top:12px;left:12px;z-index:200;width:40px;height:40px;border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);color:var(--text-primary);cursor:pointer;align-items:center;justify-content:center;transition:all var(--transition-fast)}.btn-sidebar-toggle:hover{background:var(--bg-layer-2)}.main-content{flex:1;display:flex;flex-direction:column;height:100vh;overflow:hidden;min-width:0}.chat-container{flex:1;overflow-y:auto;padding:var(--spacing-xl) var(--spacing-lg);scroll-behavior:smooth}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;padding:var(--spacing-2xl);animation:fadeInUp .6s ease}.welcome-icon{font-size:3.5rem;margin-bottom:var(--spacing-lg);animation:pulse 3s ease-in-out infinite}.welcome-title{font-size:var(--font-size-2xl);font-weight:700;letter-spacing:-.03em;margin-bottom:var(--spacing-md)}.welcome-accent{color:var(--accent)}.welcome-desc{font-size:var(--font-size-base);color:var(--text-secondary);max-width:500px;line-height:1.7;margin-bottom:var(--spacing-xl)}.welcome-examples{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);justify-content:center}.welcome-chip{padding:8px 18px;border:1px solid var(--border-default);border-radius:var(--radius-full);background:var(--bg-layer-2);color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.welcome-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-muted);box-shadow:var(--shadow-glow)}.chat-messages{max-width:var(--chat-max-width);margin:0 auto;width:100%;display:flex;flex-direction:column;gap:var(--spacing-sm)}.chat-messages.has-messages~.welcome-screen,.welcome-screen.hidden{display:none}.message{display:flex;width:100%;animation:fadeInUp .35s ease}.message.user{justify-content:flex-end}.message.ai{justify-content:flex-start}.message-bubble{max-width:80%;padding:12px 18px;border-radius:var(--radius-lg);font-size:var(--font-size-base);line-height:1.7;word-wrap:break-word;overflow-wrap:break-word}.user-bubble{background:var(--user-bubble-bg);color:var(--user-bubble-text);border-bottom-right-radius:4px;font-weight:450}.ai-bubble{background:var(--ai-bubble-bg);border:1px solid var(--ai-bubble-border);color:var(--text-primary);border-bottom-left-radius:4px;max-width:88%}.ai-bubble h1,.ai-bubble h2,.ai-bubble h3{color:var(--text-primary);margin-top:1.2em;margin-bottom:.4em;line-height:1.3}.ai-bubble h1:first-child,.ai-bubble h2:first-child,.ai-bubble h3:first-child{margin-top:0}.ai-bubble h3{font-size:1.05rem;font-weight:600;color:var(--accent)}.ai-bubble p{margin-bottom:.7em}.ai-bubble p:last-child{margin-bottom:0}.ai-bubble ul,.ai-bubble ol{margin-bottom:.8em;padding-left:1.5em}.ai-bubble li{margin-bottom:.35em}.ai-bubble strong{color:var(--text-primary);font-weight:600}.ai-bubble em{color:var(--text-secondary)}.ai-bubble code{background:var(--bg-layer-3);padding:2px 6px;border-radius:4px;font-size:.85em;font-family:JetBrains Mono,Fira Code,monospace;color:var(--accent)}.ai-bubble pre{background:var(--bg-layer-2);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--spacing-md);overflow-x:auto;margin-bottom:1em}.ai-bubble pre code{background:none;padding:0;color:var(--text-primary)}.ai-bubble table{width:100%;border-collapse:collapse;margin-bottom:1em;font-size:var(--font-size-sm)}.ai-bubble th,.ai-bubble td{border:1px solid var(--border-default);padding:8px 12px;text-align:left}.ai-bubble th{background:var(--bg-layer-2);font-weight:600;color:var(--accent)}.ai-bubble td{background:var(--bg-layer-1)}.ai-bubble blockquote{border-left:3px solid var(--accent);padding-left:var(--spacing-md);margin:.8em 0;color:var(--text-secondary);font-style:italic}.ai-bubble hr{border:none;border-top:1px solid var(--border-subtle);margin:1.5em 0}.typing-indicator{display:flex;align-items:center;gap:4px;padding:4px 0}.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:typingBounce 1.4s ease-in-out infinite}.typing-dot:nth-child(2){animation-delay:.16s}.typing-dot:nth-child(3){animation-delay:.32s}.input-bar-wrapper{padding:var(--spacing-md) var(--spacing-lg) var(--spacing-lg);background:linear-gradient(to top,var(--bg-base) 60%,transparent)}.input-bar{max-width:var(--chat-max-width);margin:0 auto;display:flex;align-items:flex-end;gap:var(--spacing-sm);padding:10px 12px 10px 18px;background:var(--bg-layer-2);border:1px solid var(--border-default);border-radius:var(--radius-lg);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-bar:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.input-message{flex:1;background:transparent;border:none;color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.5;resize:none;max-height:150px;overflow-y:auto;outline:none}.input-message::placeholder{color:var(--text-muted)}.btn-send{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border:none;border-radius:var(--radius-md);background:var(--accent);color:var(--text-inverse);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.btn-send:hover:not(:disabled){background:var(--accent-hover);transform:scale(1.05)}.btn-send:disabled{opacity:.3;cursor:not-allowed}.input-hint{max-width:var(--chat-max-width);margin:6px auto 0;font-size:var(--font-size-xs);color:var(--text-muted);text-align:center}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.modal-overlay.hidden{display:none}.modal{background:var(--bg-layer-1);border:1px solid var(--border-default);border-radius:var(--radius-xl);width:90%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:scaleIn .25s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-lg) var(--spacing-xl);border-bottom:1px solid var(--border-subtle)}.modal-header h3{font-size:var(--font-size-lg);font-weight:600}.btn-close-modal{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:1.4rem;cursor:pointer;transition:all var(--transition-fast)}.btn-close-modal:hover{background:var(--bg-layer-3);color:var(--text-primary)}.modal-body{padding:var(--spacing-xl)}.form-group{margin-bottom:var(--spacing-lg)}.form-group label{display:block;font-size:var(--font-size-sm);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.form-hint{font-size:var(--font-size-xs);color:var(--text-muted);margin-bottom:var(--spacing-sm)}.input-with-action{display:flex;gap:var(--spacing-xs)}.form-input{flex:1;padding:10px 14px;background:var(--bg-layer-2);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-sm);outline:none;transition:border-color var(--transition-fast)}.form-input:focus{border-color:var(--accent)}.form-select{width:100%;padding:10px 36px 10px 14px;background:var(--bg-layer-2);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-sm);outline:none;cursor:pointer;transition:border-color var(--transition-fast);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23a1a1aa' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}.form-select:focus{border-color:var(--accent)}.form-select option{background:var(--bg-layer-2);color:var(--text-primary)}.btn-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--bg-layer-2);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.btn-icon:hover{background:var(--bg-layer-3);color:var(--text-primary)}.api-key-status{font-size:var(--font-size-sm);padding:8px 12px;border-radius:var(--radius-md);min-height:0;transition:all var(--transition-fast)}.api-key-status.success{background:#22c55e1a;color:var(--success);border:1px solid rgba(34,197,94,.2)}.api-key-status.error{background:#ef44441a;color:var(--danger);border:1px solid rgba(239,68,68,.2)}.api-key-status.loading{background:#3b82f61a;color:var(--info);border:1px solid rgba(59,130,246,.2)}.modal-footer{padding:0 var(--spacing-xl) var(--spacing-xl)}.btn-primary{width:100%;padding:12px;border:none;border-radius:var(--radius-md);background:var(--accent);color:var(--text-inverse);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.settings-divider{border:none;border-top:1px solid var(--border-subtle);margin:var(--spacing-lg) 0}.settings-section-title{font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:var(--spacing-md)}.theme-toggle-group{display:flex;gap:var(--spacing-xs);background:var(--bg-layer-2);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:4px}.theme-toggle-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:10px 16px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-muted);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.theme-toggle-btn:hover{color:var(--text-secondary)}.theme-toggle-btn.active{background:var(--accent-muted);color:var(--accent);font-weight:600;box-shadow:var(--shadow-sm)}.theme-toggle-btn svg{flex-shrink:0}.google-account-section{margin-bottom:var(--spacing-md)}.btn-google-signin{width:100%;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:11px 18px;border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--bg-layer-2);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-google-signin:hover{background:var(--bg-hover);border-color:var(--border-strong)}.btn-google-signin svg{flex-shrink:0}.google-user-card{display:flex;align-items:center;gap:var(--spacing-md);padding:12px 14px;border:1px solid var(--border-default);border-radius:var(--radius-md);background:var(--bg-layer-2)}.google-user-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid var(--accent-muted)}.google-user-info{flex:1;min-width:0}.google-user-name{font-size:var(--font-size-sm);font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.google-user-email{font-size:var(--font-size-xs);color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.btn-google-signout{padding:6px 12px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:transparent;color:var(--text-muted);font-family:var(--font-family);font-size:var(--font-size-xs);font-weight:500;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;flex-shrink:0}.btn-google-signout:hover{background:#ef44441a;border-color:var(--danger);color:var(--danger)}#redirect-uri-display{background:var(--bg-layer-3);padding:2px 6px;border-radius:4px;font-size:var(--font-size-xs);color:var(--accent);-webkit-user-select:all;user-select:all;word-break:break-all}#google-client-id-group .form-hint code{cursor:pointer}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}@keyframes shimmer{0%{opacity:.5}50%{opacity:1}to{opacity:.5}}.cursor-blink{display:inline-block;width:2px;height:1.1em;background:var(--accent);margin-left:2px;vertical-align:text-bottom;animation:shimmer 1s ease-in-out infinite}.error-inline{padding:12px 16px;background:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-md);color:var(--danger);font-size:var(--font-size-sm);line-height:1.5}@media(max-width:768px){.sidebar{position:fixed;left:0;top:0;transform:translate(-100%)}.sidebar.open{transform:translate(0);box-shadow:var(--shadow-lg)}.btn-sidebar-toggle{display:flex}.welcome-title{font-size:var(--font-size-xl)}.welcome-desc{font-size:var(--font-size-sm)}.chat-container{padding:var(--spacing-lg) var(--spacing-md);padding-top:56px}.input-bar-wrapper{padding:var(--spacing-sm) var(--spacing-md) var(--spacing-md)}.message-bubble{max-width:90%}.ai-bubble{max-width:95%}}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:90}.sidebar-overlay.active{display:block}.no-key-banner{max-width:var(--chat-max-width);margin:0 auto var(--spacing-lg);padding:14px 20px;background:var(--accent-muted);border:1px solid rgba(212,168,67,.25);border-radius:var(--radius-md);display:flex;align-items:center;gap:var(--spacing-md);font-size:var(--font-size-sm);color:var(--accent);animation:fadeInUp .4s ease}.no-key-banner button{background:var(--accent);color:var(--text-inverse);border:none;padding:6px 14px;border-radius:var(--radius-sm);font-family:var(--font-family);font-size:var(--font-size-xs);font-weight:600;cursor:pointer;white-space:nowrap;transition:background var(--transition-fast)}.no-key-banner button:hover{background:var(--accent-hover)}.ai-bubble .katex{color:var(--text-primary);font-size:1.05em}.ai-bubble .katex-display{margin:1em 0;padding:12px 16px;background:var(--bg-layer-2);border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow-x:auto}.ai-bubble .katex-display>.katex{font-size:1.15em}.viz-container{margin:1em -18px;border:1px solid var(--border-default);border-radius:var(--radius-md);overflow:hidden;background:#0f0f1a;transition:all var(--transition-base)}.viz-container:first-child{margin-top:0}.viz-header{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:var(--bg-layer-2);border-bottom:1px solid var(--border-subtle)}.viz-label{font-size:var(--font-size-xs);font-weight:600;color:var(--accent);letter-spacing:.02em}.viz-actions{display:flex;gap:4px}.viz-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);background:transparent;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast)}.viz-btn:hover{background:var(--bg-layer-3);color:var(--text-primary);border-color:var(--border-default)}.viz-iframe{width:100%;height:380px;border:none;display:block;background:#0f0f1a}.viz-container.viz-expanded{position:fixed;top:20px;right:20px;bottom:20px;left:20px;margin:0;z-index:999;border-radius:var(--radius-lg);box-shadow:0 0 60px #000c;animation:scaleIn .25s ease}.viz-container.viz-expanded .viz-iframe{height:calc(100% - 44px)}.viz-container.viz-expanded:before{content:"";position:fixed;top:-20px;right:-20px;bottom:-20px;left:-20px;background:#000000b3;z-index:-1;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}@media(max-width:768px){.viz-container{margin:1em -12px}.viz-iframe{height:280px}.viz-container.viz-expanded{top:10px;right:10px;bottom:10px;left:10px;border-radius:var(--radius-md)}}