:root{--bg-primary: #0a0c10;--bg-secondary: #161b22;--bg-tertiary: #21262d;--accent-primary: #58a6ff;--accent-secondary: #3fb950;--accent-vibrant: #bc8cff;--accent-hot: #ff7b72;--text-main: #c9d1d9;--text-muted: #8b949e;--text-bright: #ffffff;--border-dim: #30363d;--border-bright: #484f58;--glass-bg: rgba(22, 27, 34, .8);--glass-border: rgba(240, 246, 252, .1);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--shadow-sm: 0 2px 4px rgba(0,0,0,.5);--shadow-md: 0 8px 16px rgba(0,0,0,.5);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;background-color:var(--bg-primary);color:var(--text-main)}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;min-height:100vh;background:radial-gradient(circle at top right,#161b22,#0a0c10);background-attachment:fixed}h1,h2,h3,h4{color:var(--text-bright);font-weight:600;letter-spacing:-.02em}button{cursor:pointer;border:none;font-family:inherit;transition:all .2s cubic-bezier(.4,0,.2,1)}.glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),#1f6feb);color:#fff;padding:12px 24px;border-radius:var(--radius-sm);font-weight:600}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #58a6ff66}.vibrant-gradient{background:linear-gradient(135deg,var(--accent-primary),var(--accent-vibrant));-webkit-background-clip:text;-webkit-text-fill-color:transparent}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.animate-fade-in{animation:fadeIn .4s ease-out forwards}