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var(--c-border);border-top-color:var(--c-primary);border-radius:50%;animation:spin .7s linear infinite;margin-bottom:8px}@keyframes spin{to{transform:rotate(360deg)}}.alert-error{background:#fef2f2;border:1px solid #fca5a5;border-radius:8px;padding:12px 16px;color:var(--c-error);font-size:14px;margin-bottom:12px}.site-header{padding:20px 0 4px;text-align:center}.site-header h1{font-size:20px;font-weight:700;color:var(--c-primary)}.site-header p{font-size:13px;color:var(--c-muted);margin-top:2px}@media (max-width: 400px){.card{padding:16px}.slots-grid{grid-template-columns:repeat(2,1fr)}.confirm-table th{width:90px;font-size:12px}}.mode-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:8px}@media (max-width: 480px){.mode-cards{grid-template-columns:1fr}}.mode-card{border:2px solid var(--c-border);border-radius:var(--radius);padding:22px 16px;text-align:center;cursor:pointer;transition:all 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