:root{--primary:#2563eb;--primary-hover:#1d4ed8;--background:#f8fafc;--surface:#fff;--text:#0f172a;--text-secondary:#64748b;--border:#e2e8f0;--success:#22c55e;--error:#ef4444;--radius:.75rem;--shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;--font-sans:"Inter",system-ui,-apple-system,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{border-radius:var(--radius);background-color:var(--primary);color:#fff;border:none;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:hover{background-color:var(--primary-hover);transform:translateY(-1px)}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);padding:2rem}.input-group{flex-direction:column;gap:.5rem;margin-bottom:1rem;display:flex}.input-group label{color:var(--text-secondary);font-size:.875rem;font-weight:500}.input-group input,.input-group select{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);padding:.75rem;font-size:1rem;transition:border-color .2s}.input-group input:focus,.input-group select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #2563eb1a}h1,h2,h3{letter-spacing:-.025em;font-weight:700}h1{margin-bottom:1.5rem;font-size:2.5rem}h2{margin-bottom:1rem;font-size:1.875rem}h3{margin-bottom:.75rem;font-size:1.5rem}.text-center{text-align:center}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.flex{display:flex}.gap-4{gap:1rem}.items-center{align-items:center}.justify-between{justify-content:space-between}.w-full{width:100%}