/* 中一照片直播 - Page-specific & Responsive */

/* ============== RESPONSIVE ============== */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .masonry-grid { columns: 3; }
}

@media (max-width: 768px) {
  .admin-sidebar { transform: translateX(-100%); transition: transform 0.3s ease; }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .admin-content { padding: var(--space-4); }
  .admin-topbar { padding: var(--space-3) var(--space-4); }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .client-hero { height: 40vh; min-height: 300px; padding: var(--space-4); }
  .client-gallery { padding: var(--space-4); }
  .masonry-grid { columns: 2; column-gap: var(--space-2); }
  .masonry-item { margin-bottom: var(--space-2); }
  .lightbox-nav { width: 40px; height: 40px; }
  .lightbox-prev { left: var(--space-2); }
  .lightbox-next { right: var(--space-2); }
  .photo-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-2); }
  .login-card { padding: var(--space-8); }
  .client-header { padding: var(--space-3) var(--space-4); }
  .mobile-menu-btn { display: flex !important; }
  .platform-main { padding: var(--space-4); }
  .activity-card-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .masonry-grid { columns: 1; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-meta { gap: var(--space-3); font-size: 12px; }
}

/* ============== UPLOAD PAGE ============== */
.upload-section { margin-bottom: var(--space-6); }
.activity-selector { display: flex; gap: var(--space-3); align-items: center; flex-wrap: wrap; }
.upload-list { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }
.upload-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); display: flex; align-items: center; gap: var(--space-3); }
.upload-item-info { flex: 1; min-width: 0; }
.upload-item-name { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upload-item-status { font-size: 12px; color: var(--text-sub); margin-top: 2px; }
.upload-item.success { border-left: 3px solid var(--success); }
.upload-item.error { border-left: 3px solid var(--danger); }
.upload-item.processing { border-left: 3px solid var(--warning); }

/* ============== ACTIVITY EDIT PAGE ============== */
.edit-layout { display: grid; grid-template-columns: 1fr 380px; gap: var(--space-6); }
.edit-form-section { margin-bottom: var(--space-6); }
.cover-upload { width: 100%; aspect-ratio: 16/9; border: 2px dashed var(--border); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; cursor: pointer; background: var(--bg); overflow: hidden; position: relative; }
.cover-upload:hover { border-color: var(--primary); }
.cover-upload img { width: 100%; height: 100%; object-fit: cover; }
.cover-upload-placeholder { text-align: center; color: var(--text-muted); }
.watermark-position-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); }
.watermark-position-option { padding: var(--space-3); border: 1px solid var(--border); border-radius: var(--radius-sm); text-align: center; cursor: pointer; font-size: 12px; transition: var(--transition); }
.watermark-position-option:hover { border-color: var(--primary); }
.watermark-position-option.active { border-color: var(--primary); background: var(--primary-light); color: var(--primary); }
.range-row { display: flex; align-items: center; gap: var(--space-3); }
.range-row input[type="range"] { flex: 1; }
.range-value { min-width: 50px; text-align: right; font-weight: 500; font-size: 13px; color: var(--text-sub); }

@media (max-width: 1024px) {
  .edit-layout { grid-template-columns: 1fr; }
}

/* ============== STATS PAGE ============== */
.chart-container { background: var(--surface); border-radius: var(--radius-lg); padding: var(--space-6); border: 1px solid var(--border); box-shadow: var(--shadow-sm); margin-bottom: var(--space-6); }
.chart-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-4); }
.chart-title { font-size: 16px; font-weight: 600; }
.chart-tabs { display: flex; gap: var(--space-1); background: var(--bg); border-radius: var(--radius-md); padding: 2px; }
.chart-tab { padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); font-size: 13px; cursor: pointer; color: var(--text-sub); transition: var(--transition); }
.chart-tab.active { background: var(--surface); color: var(--primary); font-weight: 500; box-shadow: var(--shadow-sm); }
.ranking-list { display: flex; flex-direction: column; gap: var(--space-3); }
.ranking-item { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-md); }
.ranking-num { width: 28px; height: 28px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; color: var(--text-sub); flex-shrink: 0; }
.ranking-item:nth-child(1) .ranking-num { background: #FEF3C7; color: #92400E; }
.ranking-item:nth-child(2) .ranking-num { background: #F3F4F6; color: #4B5563; }
.ranking-item:nth-child(3) .ranking-num { background: #FED7AA; color: #9A3412; }
.ranking-info { flex: 1; min-width: 0; }
.ranking-name { font-weight: 500; font-size: 14px; }
.ranking-meta { font-size: 12px; color: var(--text-sub); }

/* ============== SETTINGS PAGE ============== */
.settings-layout { display: grid; grid-template-columns: 1fr 380px; gap: var(--space-6); }
.settings-section { margin-bottom: var(--space-6); }
.settings-row { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) 0; border-bottom: 1px solid var(--border); }
.settings-row:last-child { border-bottom: none; }
.settings-label { font-weight: 500; }
.settings-desc { font-size: 12px; color: var(--text-sub); margin-top: 2px; }
@media (max-width: 1024px) {
  .settings-layout { grid-template-columns: 1fr; }
}

/* ============== GALLERY PAGE ============== */
.gallery-loading { text-align: center; padding: var(--space-12); color: rgba(255,255,255,0.5); }
.gallery-load-more { text-align: center; padding: var(--space-6); }
.gallery-empty { text-align: center; padding: var(--space-12); color: rgba(255,255,255,0.5); }
.gallery-empty svg { width: 80px; height: 80px; margin: 0 auto var(--space-4); opacity: 0.3; }

/* ============== DASHBOARD ============== */
.dashboard-grid { display: grid; grid-template-columns: 1fr 380px; gap: var(--space-6); }
.recent-list { display: flex; flex-direction: column; gap: var(--space-3); }
.recent-item { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3); border-radius: var(--radius-md); transition: var(--transition); cursor: pointer; }
.recent-item:hover { background: var(--bg); }
.recent-item-cover { width: 56px; height: 42px; border-radius: var(--radius-sm); object-fit: cover; background: var(--bg); flex-shrink: 0; }
.recent-item-info { flex: 1; min-width: 0; }
.recent-item-title { font-weight: 500; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.recent-item-meta { font-size: 12px; color: var(--text-sub); margin-top: 2px; }
.quick-actions { display: flex; flex-direction: column; gap: var(--space-3); }
.quick-action-btn { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); cursor: pointer; transition: var(--transition); text-align: left; width: 100%; font-family: inherit; }
.quick-action-btn:hover { border-color: var(--primary); background: var(--primary-light); }
.quick-action-icon { width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.quick-action-title { font-weight: 500; font-size: 14px; }
.quick-action-desc { font-size: 12px; color: var(--text-sub); margin-top: 2px; }
.share-link-row { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-3); background: var(--bg); border-radius: var(--radius-md); margin-bottom: var(--space-3); }
.share-link-row input { flex: 1; background: transparent; border: none; outline: none; font-size: 13px; color: var(--text); font-family: monospace; }

@media (max-width: 1024px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}

/* ============== COMMON UTILITIES ============== */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sub { color: var(--text-sub); }
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.hidden { display: none !important; }