:root{--kb-burgundy:#7A1F37;--kb-gold:#C9A24A;--kb-orange:#FF8A3D;--kb-cream:#FFF8F2;--kb-charcoal:#1F1F1F}
*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Arial,sans-serif;color:var(--kb-cream);background:radial-gradient(circle at top left,rgba(255,138,61,.25),transparent 30%),linear-gradient(135deg,#130811,#32111e 45%,#12070d)}
.kb-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.kb-card{width:min(92vw,520px);padding:32px;border:1px solid rgba(255,255,255,.12);border-radius:28px;background:rgba(255,255,255,.06);box-shadow:0 24px 80px rgba(0,0,0,.35);text-align:center;backdrop-filter:blur(16px)}
.kb-mark{width:72px;height:72px;margin:0 auto 16px;display:grid;place-items:center;border-radius:24px;background:linear-gradient(135deg,var(--kb-burgundy),var(--kb-orange));color:white;font-weight:800}h1{margin:0 0 12px;font-size:28px}p{line-height:1.6;color:rgba(255,255,255,.82)}.kb-small{color:var(--kb-gold);font-size:14px;font-weight:700}