* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 24px; font-family: Inter, Arial, sans-serif; color: #e2e8f0; background: radial-gradient(circle at top left, #155e75, transparent 45%), #020617; }
.card { width: min(620px, 100%); padding: 48px; border: 1px solid #334155; border-radius: 24px; background: rgba(15, 23, 42, .9); box-shadow: 0 24px 80px rgba(0, 0, 0, .35); }
.eyebrow { color: #67e8f9; font-size: .78rem; font-weight: 700; letter-spacing: .16em; }
h1 { margin: 12px 0; font-size: clamp(2.5rem, 7vw, 4.5rem); }
p { color: #cbd5e1; font-size: 1.1rem; line-height: 1.7; }
a { display: inline-block; margin-top: 18px; padding: 12px 18px; border-radius: 10px; color: #082f49; background: #67e8f9; font-weight: 700; text-decoration: none; }