:root{--primary: #0ea5e9;--primary-glow: rgba(14, 165, 233, .1);--secondary: #38bdf8;--warning: #f59e0b;--app-bg: #f1f5f9;--noise-opacity: .015;--text-main: #111827;--text-muted: #6b7280;--text-inv: #ffffff;--text-on-dark: #f8fafc;--text-on-dark-muted: #cbd5e1;--text-on-dark-subtle: #94a3b8;--sidebar-width: 280px;--sidebar-collapsed-width: 80px;--sidebar-bg: rgba(255, 255, 255, .95);--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(0, 0, 0, .08);--glass-shadow: rgba(0, 0, 0, .06);--surface-1: rgba(255, 255, 255, .6);--surface-2: rgba(255, 255, 255, .95);--surface-3: #ffffff;--surface-muted: rgba(249, 250, 251, .9);--surface-dark: rgba(17, 24, 39, .8);--surface-dark-strong: rgba(17, 24, 39, .95);--card-bg: #ffffff;--card-border: rgba(0, 0, 0, .08);--panel-bg-soft: rgba(255, 255, 255, .7);--panel-bg: rgba(255, 255, 255, .85);--panel-bg-strong: #ffffff;--panel-dark-bg: linear-gradient(180deg, rgba(17, 24, 39, .94) 0%, rgba(10, 15, 25, .98) 100%);--panel-dark-soft: linear-gradient(180deg, rgba(17, 24, 39, .85) 0%, rgba(10, 15, 25, .92) 100%);--panel-border: rgba(0, 0, 0, .08);--panel-border-strong: rgba(0, 0, 0, .12);--panel-highlight: linear-gradient(140deg, rgba(255, 255, 255, .8) 0%, rgba(255, 255, 255, 0) 70%);--panel-shadow-sm: 0 4px 12px -2px rgba(0, 0, 0, .05);--panel-shadow-md: 0 8px 24px -4px rgba(0, 0, 0, .08);--panel-shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, .12);--grid-line: rgba(148, 163, 184, .12);--accent-faint: rgba(14, 165, 233, .06);--accent-soft: rgba(14, 165, 233, .12);--accent-border: rgba(14, 165, 233, .22);--accent-glow: rgba(14, 165, 233, .24);--accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 55%, #22d3ee 100%);--accent-gradient-soft: linear-gradient(135deg, rgba(14, 165, 233, .16) 0%, rgba(34, 211, 238, .08) 100%);--success-bg: #f0fdf4;--danger-bg: #fef2f2;--success: #22c55e;--danger: #ef4444;--success-soft: rgba(34, 197, 94, .12);--success-border: rgba(34, 197, 94, .22);--warning-soft: rgba(245, 158, 11, .12);--warning-border: rgba(245, 158, 11, .22);--danger-soft: rgba(239, 68, 68, .12);--danger-border: rgba(239, 68, 68, .22);--radius-xl: 24px;--sidebar-bg: rgba(255, 255, 255, .8)}[data-theme=dark]{--primary: #38bdf8;--primary-glow: rgba(56, 189, 248, .15);--secondary: #0ea5e9;--warning: #f59e0b;--app-bg: linear-gradient(165deg, #0f172a 0%, #020617 100%);--noise-opacity: .025;--text-main: #f8fafc;--text-muted: #94a3b8;--text-inv: #0f172a;--text-on-dark: #f8fafc;--text-on-dark-muted: #cbd5e1;--text-on-dark-subtle: #94a3b8;--sidebar-bg: rgba(15, 23, 42, .7);--glass-bg: rgba(15, 23, 42, .65);--glass-border: rgba(255, 255, 255, .08);--glass-shadow: rgba(0, 0, 0, .4);--surface-1: rgba(15, 23, 42, .72);--surface-2: rgba(15, 23, 42, .84);--surface-3: rgba(15, 23, 42, .94);--surface-muted: rgba(15, 23, 42, .62);--surface-dark: rgba(2, 6, 23, .72);--surface-dark-strong: rgba(2, 6, 23, .92);--card-bg: #1e293b;--card-border: rgba(255, 255, 255, .05);--panel-bg-soft: linear-gradient(145deg, rgba(15, 23, 42, .72) 0%, rgba(8, 15, 29, .64) 100%);--panel-bg: linear-gradient(145deg, rgba(15, 23, 42, .84) 0%, rgba(8, 15, 29, .78) 100%);--panel-bg-strong: linear-gradient(150deg, rgba(15, 23, 42, .94) 0%, rgba(2, 6, 23, .98) 100%);--panel-dark-bg: linear-gradient(180deg, rgba(4, 10, 22, .98) 0%, rgba(1, 4, 14, 1) 100%);--panel-dark-soft: linear-gradient(180deg, rgba(8, 15, 30, .9) 0%, rgba(3, 8, 20, .96) 100%);--panel-border: rgba(148, 163, 184, .14);--panel-border-strong: rgba(148, 163, 184, .22);--panel-highlight: linear-gradient(140deg, rgba(255, 255, 255, .08) 0%, rgba(255, 255, 255, 0) 60%);--panel-shadow-sm: 0 16px 36px -26px rgba(0, 0, 0, .48);--panel-shadow-md: 0 22px 48px -30px rgba(0, 0, 0, .56);--panel-shadow-lg: 0 32px 72px -36px rgba(0, 0, 0, .62);--grid-line: rgba(148, 163, 184, .08);--accent-faint: rgba(56, 189, 248, .1);--accent-soft: rgba(56, 189, 248, .18);--accent-border: rgba(56, 189, 248, .3);--accent-glow: rgba(56, 189, 248, .3);--accent-gradient: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 55%, #06b6d4 100%);--accent-gradient-soft: linear-gradient(135deg, rgba(56, 189, 248, .18) 0%, rgba(14, 165, 233, .08) 100%);--success-bg: rgba(34, 197, 94, .15);--danger-bg: rgba(239, 68, 68, .15);--success: #4ade80;--danger: #f87171;--success-soft: rgba(34, 197, 94, .16);--success-border: rgba(34, 197, 94, .28);--warning-soft: rgba(245, 158, 11, .18);--warning-border: rgba(245, 158, 11, .28);--danger-soft: rgba(239, 68, 68, .18);--danger-border: rgba(239, 68, 68, .28);--radius-xl: 24px;--sidebar-bg: rgba(2, 6, 23, .8)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box;transition:background-color .3s ease,border-color .3s ease,color .3s ease,box-shadow .3s ease}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;text-rendering:optimizeLegibility}body{font-family:Outfit,Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--app-bg) fixed;color:var(--text-main);min-height:100vh;letter-spacing:-.01em;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.012'/%3E%3C/svg%3E"),var(--app-bg);background-attachment:fixed}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer}a{text-decoration:none;color:inherit}.math-render{color:inherit;display:inline}.math-render--display{display:block;width:100%;margin:1.5em 0;overflow-x:auto;overflow-y:hidden;text-align:center;-webkit-overflow-scrolling:touch}.math-render--display .katex-display{margin:0!important}.math-render-error{background:var(--danger-soft);color:var(--danger);padding:2px 6px;border-radius:6px}.math-render--display::-webkit-scrollbar{height:4px}.math-render--display::-webkit-scrollbar-track{background:transparent}.math-render--display::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:10px}.tikz-container{position:relative;min-height:60px;display:flex;justify-content:center;align-items:center;margin:16px 0}.tikz-output{max-width:100%;overflow:auto;text-align:center}.tikz-loading{position:absolute;font-size:13px;color:var(--text-muted);background:var(--surface-1);padding:10px 20px;border-radius:12px;border:1px solid var(--panel-border);z-index:5}.tikz-fallback-msg{color:var(--danger);font-size:12px;padding:16px;border:1px solid var(--danger-border);border-radius:8px;background:var(--danger-soft);text-align:left}