:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:#0b1021;color:#e9edf5}*{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:inherit;text-decoration:none}.container{max-width:960px;margin:0 auto;padding:24px}.card{border:1px solid #1f2940;background:#11172b;border-radius:12px;padding:16px;box-shadow:0 6px 16px rgba(0,0,0,.25)}.row{display:flex;gap:12px;align-items:center}.btn{padding:10px 14px;border-radius:8px;border:1px solid #2e3a5a;background:linear-gradient(90deg,#2445ff,#6b8bff);color:#fff;cursor:pointer;font-weight:600}.btn.secondary{background:transparent;border:1px solid #2e3a5a;color:#e9edf5}.input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid #2e3a5a;background:#0d1428;color:#e9edf5}.stack{display:flex;flex-direction:column;gap:8px}