:root{--primary: #3b82f6;--primary-dark: #60a5fa;--secondary: #10b981;--background: #0f172a;--surface: #1e293b;--text-main: #f8fafc;--text-muted: #94a3b8;--border: #334155;--radius: .75rem;--shadow: 0 4px 6px -1px rgb(0 0 0 / .5), 0 2px 4px -2px rgb(0 0 0 / .3)}[data-theme=light]{--primary: #3b82f6;--primary-dark: #2563eb;--secondary: #10b981;--background: #f8fafc;--surface: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--background);color:var(--text-main);line-height:1.5}*{box-sizing:border-box}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-dark)}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border-radius:var(--radius);font-weight:500;cursor:pointer;transition:all .2s;border:none;gap:.5rem}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.card{background:var(--surface);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);border:1px solid var(--border)}h1,h2,h3{margin-top:0;color:var(--text-main)}.text-muted{color:var(--text-muted)}