:root{--bg-primary: #0a0a0a;--bg-secondary: #141414;--bg-tertiary: #1a1a1a;--bg-card: #141414;--bg-overlay: rgba(0, 0, 0, .8);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--text-muted: rgba(255, 255, 255, .5);--border-color: rgba(255, 255, 255, .1);--border-hover: rgba(255, 255, 255, .2);--accent: #e63946;--accent-hover: #ff6b6b;--scrollbar-track: #0a0a0a;--scrollbar-thumb: #333;--scrollbar-thumb-hover: #444}[data-theme=light]{--bg-primary: #f8f9fa;--bg-secondary: #ffffff;--bg-tertiary: #ffffff;--bg-card: #ffffff;--bg-overlay: rgba(255, 255, 255, .9);--text-primary: #1a1a1a;--text-secondary: rgba(0, 0, 0, .7);--text-muted: rgba(0, 0, 0, .5);--border-color: rgba(0, 0, 0, .1);--border-hover: rgba(0, 0, 0, .2);--accent: #e63946;--accent-hover: #d62839;--scrollbar-track: #f8f9fa;--scrollbar-thumb: #ccc;--scrollbar-thumb-hover: #aaa}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background .3s ease,color .3s ease}.main-content{min-height:100vh}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}::selection{background:var(--accent);color:#fff}.km-logo{filter:invert(1) brightness(1.5);transition:filter .3s ease}[data-theme=light] .km-logo{filter:none}