:root{--background:#FAFAFA;--surface:#FFFFFF;--surface-secondary:#F5F5F5;--surface-tertiary:#EBEBEB;--primary:#000000;--secondary:#003366;--text-primary:#000000;--text-secondary:#666666;--text-tertiary:#888888;--border:#E5E5E5;--border-light:#F0F0F0;--border-dark:#A9A9A9;--success:#22C55E;--error:#EF4444;--warning:#F59E0B;--info:#3B82F6;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px rgba(0,0,0,0.07);--shadow-lg:0 10px 15px rgba(0,0,0,0.1);--transition:all 0.2s ease;--font-size-base:16px;--font-size-scale:1;--font-size-xs:calc(12px * var(--font-size-scale));--font-size-sm:calc(14px * var(--font-size-scale));--font-size-md:calc(16px * var(--font-size-scale));--font-size-lg:calc(18px * var(--font-size-scale));--font-size-xl:calc(20px * var(--font-size-scale));--font-size-2xl:calc(24px * var(--font-size-scale));--font-size-3xl:calc(32px * var(--font-size-scale));--focus-ring-color:var(--secondary);--focus-ring-width:3px;--focus-ring-offset:2px;--touch-target-min:44px}[data-font-size=small]{--font-size-scale:0.875}[data-font-size=medium]{--font-size-scale:1}[data-font-size=large]{--font-size-scale:1.125}[data-font-size=x-large]{--font-size-scale:1.25}.dark{--background:#121212;--surface:#1E1E1E;--surface-secondary:#2A2A2A;--surface-tertiary:#353535;--primary:#FFFFFF;--secondary:#22C55E;--text-primary:#F5F5F5;--text-secondary:#A0A0A0;--text-tertiary:#707070;--border:#3A3A3A;--border-light:#2F2F2F;--border-dark:#555555;--success:#4ADE80;--error:#F87171;--warning:#FBBF24;--info:#60A5FA;--shadow-sm:0 1px 2px rgba(0,0,0,0.3);--shadow-md:0 4px 6px rgba(0,0,0,0.4);--shadow-lg:0 10px 15px rgba(0,0,0,0.5);--focus-ring-color:var(--secondary)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--background);color:var(--text-primary);line-height:1.5;transition:var(--transition)}button,input,select,textarea{font-family:inherit}h1{font-size:var(--font-size-3xl);font-weight:700;line-height:1.2;color:var(--text-primary)}h2{font-size:var(--font-size-2xl);line-height:1.3}h2,h3{font-weight:600;color:var(--text-primary)}h3{font-size:var(--font-size-xl)}h3,h4{line-height:1.4}h4{font-size:var(--font-size-lg);font-weight:600}h4,p{color:var(--text-primary)}p{font-size:var(--font-size-md)}.text-secondary{color:var(--text-secondary)}.text-sm{font-size:var(--font-size-sm)}.text-xs{font-size:var(--font-size-xs)}.text-lg{font-size:var(--font-size-lg)}a{color:var(--secondary);text-decoration:none;transition:var(--transition)}a:hover{opacity:.8}.theme-toggle{display:flex;align-items:center;gap:8px;padding:8px;border-radius:8px;background:var(--surface);border:1px solid var(--border);cursor:pointer;transition:var(--transition)}.theme-toggle:hover{border-color:var(--border-dark)}.theme-toggle svg{width:20px;height:20px;color:var(--text-primary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--background)}::-webkit-scrollbar-thumb{background:var(--border-dark);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}::-moz-selection{background:var(--secondary);color:#FFFFFF}::selection{background:var(--secondary);color:#FFFFFF}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.reduced-motion *,.reduced-motion :after,.reduced-motion :before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}:focus:not(:focus-visible){outline:none}@media (prefers-contrast:high){:root{--border:#000000;--text-secondary:#333333}.dark{--border:#FFFFFF;--text-secondary:#CCCCCC}}@media (forced-colors:active){a{text-decoration:underline}.btn,button{border:2px solid}}