:root{--c:#5EA9B3;--d:#2F3136}
body{margin:0;font-family:Arial,sans-serif;background:#f7f9fa;color:var(--d)}
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center}
.card{background:#fff;padding:40px;border-radius:18px;box-shadow:0 10px 30px rgba(0,0,0,.08);text-align:center;max-width:520px}
h1{color:var(--c);margin:0}
.subtitle{color:#666}
.buttons{display:grid;gap:12px;margin-top:24px}
.buttons a{text-decoration:none;background:var(--c);color:#fff;padding:12px;border-radius:10px}