:root{--color-brand: #1a1a2e;--color-brand-light: color-mix(in srgb, var(--color-brand) 85%, white);--color-brand-dark: color-mix(in srgb, var(--color-brand) 85%, black);--color-surface: #ffffff;--color-bg: #f8f8f6;--color-text: #1a1a1a;--color-text-muted: #6b7280;--color-border: #e5e7eb;--color-success: #16a34a;--color-danger: #dc2626;--color-warning: #d97706;--radius: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6;font-size:15px}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.page-content{padding:32px 0 64px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius);font-size:14px;font-weight:600;border:none;transition:all .15s ease;white-space:nowrap}.btn-primary{background:var(--color-brand);color:#fff}.btn-primary:hover{background:var(--color-brand-dark)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-outline{background:transparent;color:var(--color-brand);border:1.5px solid var(--color-brand)}.btn-outline:hover{background:var(--color-brand);color:#fff}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:#b91c1c}.btn-sm{padding:6px 14px;font-size:13px}.btn-lg{padding:14px 28px;font-size:16px}.btn-full{width:100%}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}.form-label{font-size:14px;font-weight:600;color:var(--color-text)}.form-input{padding:10px 14px;border:1.5px solid var(--color-border);border-radius:var(--radius);font-size:15px;background:#fff;transition:border-color .15s;outline:none;width:100%}.form-input:focus{border-color:var(--color-brand)}.form-input.error{border-color:var(--color-danger)}.form-error{font-size:13px;color:var(--color-danger)}.form-hint{font-size:13px;color:var(--color-text-muted)}.card{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--color-border);overflow:hidden;box-shadow:var(--shadow-sm)}.card-body{padding:20px}.card-header{padding:16px 20px;border-bottom:1px solid var(--color-border);font-weight:600;font-size:15px}.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.4px}.badge-open{background:#dcfce7;color:#15803d}.badge-extended{background:#fef3c7;color:#d97706}.badge-sold{background:#dbeafe;color:#1d4ed8}.badge-pending{background:#f3f4f6;color:#6b7280}.badge-closed{background:#fee2e2;color:#dc2626}.badge-reserve{background:#d1fae5;color:#065f46}.badge-draft{background:#f3f4f6;color:#6b7280}.lot-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.alert{padding:12px 16px;border-radius:var(--radius);font-size:14px;margin-bottom:16px;display:flex;align-items:flex-start;gap:10px}.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}.alert-warning{background:#fef3c7;color:#92400e;border:1px solid #fde68a}.spinner{width:24px;height:24px;border:2px solid var(--color-border);border-top-color:var(--color-brand);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{display:flex;justify-content:center;align-items:center;padding:60px 0}.timer{font-variant-numeric:tabular-nums;font-weight:700}.timer-danger{color:var(--color-danger);animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.lot-images{display:flex;flex-direction:column;gap:8px}.lot-image-main{aspect-ratio:4/3;object-fit:contain;border-radius:var(--radius);background:var(--color-bg);width:100%}.lot-image-thumbs{display:flex;gap:8px;flex-wrap:wrap}.lot-image-thumb{width:72px;height:72px;object-fit:contain;background:var(--color-bg);border-radius:6px;cursor:pointer;border:2px solid transparent;transition:border-color .15s}.lot-image-thumb.active{border-color:var(--color-brand)}.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center;flex-wrap:wrap}.nav-toggle{display:none}@media (max-width: 768px){.container{padding:0 16px}.lot-grid{grid-template-columns:1fr}.page-content{padding:20px 0 48px}.btn-lg{padding:12px 20px;font-size:15px}.card-body{padding:16px}.card-header{padding:12px 16px}.nav-toggle{display:inline-flex;align-items:center;justify-content:center;background:none;border:none;color:#fff;font-size:26px;line-height:1;cursor:pointer;padding:8px;margin-left:auto}.nav-links{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;margin-left:0;background:var(--color-brand);padding:8px 16px 16px;box-shadow:0 8px 20px #00000040}.nav-links.nav-links-open{display:flex}.nav-links>*{width:100%}}@media (max-width: 480px){.lot-grid{grid-template-columns:1fr}.badge{font-size:11px;padding:2px 8px}.btn{padding:8px 16px;font-size:13px}}.lot-detail-grid{display:grid;grid-template-columns:1fr 380px;gap:32px;align-items:start}@media (max-width: 900px){.lot-detail-grid{grid-template-columns:1fr}.lot-detail-sticky{position:static!important}}