:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;color:#0f172a;background:#f1f5f9}*{box-sizing:border-box}body{margin:0}.layout{max-width:720px;margin:0 auto;padding:2rem 1.25rem}.header h1{margin:0 0 .25rem;font-size:1.75rem}.muted{margin:0;color:#64748b;font-size:.95rem}.card{margin-top:1.5rem;padding:1.25rem 1.5rem;background:#fff;border-radius:12px;box-shadow:0 1px 3px #0f172a14}.card h2{margin:0 0 1rem;font-size:1.1rem}.kv{display:grid;grid-template-columns:auto 1fr;gap:.35rem 1rem;margin:0}.kv dt{font-weight:600;color:#475569}.kv dd{margin:0}.error{color:#b91c1c;margin:0}.landing{max-width:960px;margin:0 auto;padding:clamp(1.5rem,4vw,3rem) 1.25rem 3rem}.hero{text-align:center;margin-bottom:2rem}.eyebrow{margin:0 0 .5rem;font-size:.8rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#64748b}.title{margin:0 0 .75rem;font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;color:#0f172a}.lead{margin:0 auto;max-width:36rem;color:#475569;font-size:1.05rem;line-height:1.55}.inline-code{padding:.15rem .4rem;font-size:.88em;background:#e2e8f0;border-radius:6px}.time-panel{display:flex;align-items:center;justify-content:center;min-height:clamp(140px,28vh,240px);margin:1.5rem 0 1.25rem;padding:1.5rem 1rem;background:#fff;border-radius:16px;box-shadow:0 4px 6px -1px #0f172a14,0 2px 4px -2px #0f172a0f}.server-clock{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:clamp(1.35rem,5.5vw,3.25rem);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#0f172a;text-align:center;word-break:break-all}.actions{display:flex;justify-content:center}.btn{cursor:pointer;padding:.65rem 1.35rem;font-size:1rem;font-weight:600;color:#fff;background:#2563eb;border:none;border-radius:10px;box-shadow:0 1px 2px #0f172a1f}.btn:hover:not(:disabled){background:#1d4ed8}.btn:disabled{opacity:.65;cursor:not-allowed}