:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--bg-elevated: #1c2128;--bg-overlay: rgba(13, 17, 23, .8);--accent-primary: #9ca3af;--accent-secondary: #6b7280;--accent-muted: rgba(156, 163, 175, .15);--accent-glow: rgba(156, 163, 175, .35);--accent-warm: #d4d4d8;--accent-ember: #a1a1aa;--accent-hot: #e4e4e7;--molten-gradient: linear-gradient(135deg, #71717a 0%, #9ca3af 25%, #d4d4d8 50%, #a1a1aa 75%, #71717a 100%);--molten-shimmer: linear-gradient(90deg, transparent 0%, rgba(228, 228, 231, .3) 50%, transparent 100%);--molten-glow-soft: 0 0 15px rgba(156, 163, 175, .4), 0 0 30px rgba(156, 163, 175, .2);--molten-glow-intense: 0 0 10px rgba(212, 212, 216, .5), 0 0 25px rgba(156, 163, 175, .4), 0 0 45px rgba(113, 113, 122, .25);--molten-glow-outer: 0 0 8px rgba(161, 161, 170, .6), 0 0 20px rgba(156, 163, 175, .35), 0 0 40px rgba(107, 114, 128, .2), 0 0 60px rgba(82, 82, 91, .1);--success: #10b981;--warning: #f59e0b;--error: #ef4444;--info: #3b82f6;--text-primary: #f0f6fc;--text-secondary: #8b949e;--text-tertiary: #6e7681;--text-muted: #484f58;--border-primary: #30363d;--border-secondary: #21262d;--border-accent: rgba(156, 163, 175, .3);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(156, 163, 175, .25), 0 0 40px rgba(156, 163, 175, .1);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;--sidebar-width: 260px;--topbar-height: 56px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f6f8fa;--bg-tertiary: #eaeef2;--bg-elevated: #ffffff;--bg-overlay: rgba(255, 255, 255, .9);--accent-primary: #71717a;--accent-secondary: #52525b;--accent-muted: rgba(113, 113, 122, .1);--accent-glow: rgba(113, 113, 122, .25);--accent-warm: #a1a1aa;--accent-ember: #71717a;--accent-hot: #d4d4d8;--molten-gradient: linear-gradient(135deg, #52525b 0%, #71717a 25%, #a1a1aa 50%, #71717a 75%, #52525b 100%);--molten-shimmer: linear-gradient(90deg, transparent 0%, rgba(161, 161, 170, .4) 50%, transparent 100%);--molten-glow-soft: 0 0 12px rgba(113, 113, 122, .3), 0 0 24px rgba(113, 113, 122, .15);--molten-glow-intense: 0 0 8px rgba(161, 161, 170, .4), 0 0 20px rgba(113, 113, 122, .3), 0 0 35px rgba(82, 82, 91, .2);--molten-glow-outer: 0 0 6px rgba(113, 113, 122, .5), 0 0 15px rgba(113, 113, 122, .3), 0 0 30px rgba(82, 82, 91, .15);--text-primary: #1f2328;--text-secondary: #656d76;--text-tertiary: #8b949e;--text-muted: #afb8c1;--border-primary: #d0d7de;--border-secondary: #eaeef2;--border-accent: rgba(113, 113, 122, .3);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .08);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .12);--shadow-glow: 0 0 20px rgba(113, 113, 122, .2), 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xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;transition:all var(--transition-fast)}.setting-select:hover{border-color:var(--accent-primary);background-color:var(--bg-tertiary)}.setting-select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-muted),var(--molten-glow-soft)}.toggle-switch{position:relative;display:inline-block;width:44px;height:24px}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:24px;transition:all var(--transition-fast)}.toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:2px;bottom:2px;background-color:var(--text-tertiary);border-radius:50%;transition:all var(--transition-fast)}.toggle-switch input:checked+.toggle-slider{background:var(--molten-gradient);background-size:200% 200%;border-color:var(--accent-secondary);box-shadow:var(--molten-glow-soft)}.toggle-switch input:checked+.toggle-slider:before{background-color:var(--bg-primary);transform:translate(20px);box-shadow:0 0 8px var(--accent-glow)}.toggle-switch input:focus+.toggle-slider{box-shadow:0 0 0 3px var(--accent-muted),var(--molten-glow-soft)}.setting-btn{padding:8px 16px;background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-sans);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.setting-btn:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);box-shadow:var(--molten-glow-soft)}.setting-btn.danger{color:var(--error);border-color:#ef44444d;background:transparent}.setting-btn.danger:hover{background:#ef44441a;border-color:var(--error);box-shadow:0 0 15px #ef444433}.about-card{grid-column:span 2}.about-section{padding:24px;display:flex;align-items:center;gap:24px}.about-logo{flex-shrink:0;width:72px;height:72px;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--accent-primary);box-shadow:var(--molten-glow-soft)}.about-info{flex:1}.about-info h4{font-size:18px;font-weight:600;margin-bottom:4px;background:var(--molten-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.about-version{font-size:13px;color:var(--accent-primary);font-weight:500;margin-bottom:8px}.about-desc{font-size:13px;color:var(--text-secondary);margin-bottom:6px}.about-copyright{font-size:12px;color:var(--text-tertiary)}.about-stats{display:flex;gap:16px}.about-stat{display:flex;flex-direction:column;align-items:center;padding:16px 20px;background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-md);min-width:130px;transition:all var(--transition-fast)}.about-stat:hover{border-color:var(--border-accent);box-shadow:var(--molten-glow-soft)}.about-stat-value{font-size:22px;font-weight:700;background:var(--molten-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.about-stat-label{font-size:11px;color:var(--text-tertiary);text-align:center;margin-top:4px;text-transform:uppercase;letter-spacing:.5px}@media (max-width: 1200px){.settings-layout{grid-template-columns:1fr}.about-card{grid-column:span 1}.about-section{flex-direction:column;text-align:center;gap:20px}.about-stats{width:100%;justify-content:center}}@media (max-width: 600px){.about-stats{flex-direction:column;gap:12px}.about-stat{width:100%}.setting-item{flex-direction:column;align-items:flex-start;gap:12px}.setting-select,.setting-btn{width:100%}}