:root{--bg-dark:#1a1c1e;--card-bg:#25282c;--accent-color:#2563eb;--accent-hover:#1d4ed8;--text-main:#fff;--text-dim:#a1a1aa;--danger:#ef4444;--success:#22c55e;--transition:all .3s ease}body{margin:0;padding:0;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;background-color:var(--bg-dark);color:var(--text-main);line-height:1.6}.navbar{background:#000;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.3)}.navbar a{color:var(--text-main);text-decoration:none;font-weight:bold}.container{max-width:1200px;margin:0 auto;padding:2rem}.btn{display:inline-block;padding:.6rem 1.2rem;border-radius:6px;text-decoration:none;font-weight:600;cursor:pointer;transition:var(--transition);border:none;text-align:center}.btn-primary{background:var(--accent-color);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{filter:brightness(1.2)}.btn-success{background:var(--success);color:#fff}input[type="text"],input[type="password"],input[type="email"],textarea{width:100%;padding:12px;margin:10px 0;background:#2d3135;border:1px solid #444;color:#fff;border-radius:6px;box-sizing:border-box}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}.card{background:var(--card-bg);border-radius:12px;overflow:hidden;transition:var(--transition);position:relative;border:1px solid #333}.card:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,.4)}.card img{width:100%;height:200px;object-fit:cover}.text-center{text-align:center}.mt-2{margin-top:2rem}