:root {
  --bg-primary: #111111;
  --bg-secondary: #1a1a1a;
  --bg-card: #222222;
  --bg-hover: #2a2a2a;
  --bg-input: #1a1a1a;
  --border-color: #333333;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #707070;
  --accent: #888888;
  --accent-hover: #a0a0a0;
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #60a5fa;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
  --sidebar-width: 260px;
}

[data-theme="light"] {
  --bg-primary: #f0f0f0;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #e8e8e8;
  --bg-input: #f0f0f0;
  --border-color: #d4d4d4;
  --text-primary: #171717;
  --text-secondary: #525252;
  --text-muted: #737373;
  --accent: #737373;
  --accent-hover: #525252;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --info: #2563eb;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --radius: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-header h2 {
  font-size: 20px;
  color: var(--text-primary);
  font-weight: 700;
}

.version {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 2px 8px;
  border-radius: 4px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  margin-bottom: 4px;
  transition: all 0.2s ease;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

.badge {
  position: absolute;
  right: 16px;
  background: var(--danger);
  color: white;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.admin-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
}

.admin-name {
  font-weight: 600;
  font-size: 14px;
}

.admin-role {
  font-size: 12px;
  color: var(--text-muted);
}

.btn-logout {
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-logout:hover {
  background: rgba(248, 113, 113, 0.12);
  border-color: rgba(248, 113, 113, 0.3);
  color: var(--danger);
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.top-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.btn-toggle-sidebar {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
}

.content-area {
  padding: 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.stat-icon {
  font-size: 32px;
  width: 56px;
  height: 56px;
  background: var(--bg-hover);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-select {
  padding: 10px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-select:focus {
  outline: none;
  border-color: var(--accent);
}

.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-hover);
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: var(--bg-hover);
}

.loading-row td {
  text-align: center;
  color: var(--text-muted);
  padding: 40px;
}

.pet-cover {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--bg-hover);
}

.pet-cover-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 20px;
}

.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.status-0 { background: rgba(251, 191, 36, 0.15); color: var(--warning); }
.status-1 { background: rgba(74, 222, 128, 0.15); color: var(--success); }
.status-2 { background: rgba(255, 255, 255, 0.08); color: var(--text-muted); }
.status-3 { background: rgba(248, 113, 113, 0.15); color: var(--danger); }

.vip-badge {
  display: inline-block;
  padding: 4px 10px;
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #000;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}

.normal-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-hover);
  color: var(--text-muted);
  border-radius: 20px;
  font-size: 11px;
}

.action-btn {
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 6px;
}

.btn-view {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-view:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn-approve {
  background: rgba(74, 222, 128, 0.12);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.btn-approve:hover {
  background: rgba(74, 222, 128, 0.22);
}

.btn-reject {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.btn-reject:hover {
  background: rgba(248, 113, 113, 0.22);
}

.btn-offline {
  background: rgba(251, 191, 36, 0.12);
  color: var(--warning);
  border: 1px solid rgba(251, 191, 36, 0.2);
}

.btn-offline:hover {
  background: rgba(251, 191, 36, 0.22);
}

.btn-new {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-new:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn-delete {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.btn-delete:hover {
  background: rgba(248, 113, 113, 0.22);
}

.btn-toggle {
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-enable {
  background: rgba(74, 222, 128, 0.12);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.btn-disable {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.config-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
}

.config-section h3 {
  margin-bottom: 20px;
  font-size: 16px;
}

.config-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 400px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-row label {
  font-size: 14px;
  color: var(--text-secondary);
}

.form-row input {
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
}

.form-row input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-primary {
  padding: 12px 24px;
  background: var(--bg-hover);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  align-self: flex-start;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 18px;
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 28px;
  cursor: pointer;
  transition: color 0.2s ease;
}

.btn-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.pet-preview-container {
  margin-bottom: 20px;
}

.pet-video-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 8px;
}

.pet-video-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  background: var(--bg-hover);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.pet-video-item video {
  width: 200px;
  height: 200px;
  object-fit: contain;
  background: #000;
  border-radius: 6px;
  flex-shrink: 0;
}

.pet-video-info {
  flex: 1;
  min-width: 0;
}

.pet-video-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pet-video-url {
  font-size: 12px;
  color: var(--accent);
  word-break: break-all;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pet-video-url:hover {
  text-decoration: underline;
}

.pet-video-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.pet-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.pet-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pet-info-label {
  font-size: 12px;
  color: var(--text-muted);
}

.pet-info-value {
  font-size: 14px;
}

.reject-form {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reject-form input,
.reject-form select,
.reject-form textarea {
  width: 100%;
  padding: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
}

.reject-form input::placeholder,
.reject-form textarea::placeholder {
  color: var(--text-muted);
}

.reject-form input:focus,
.reject-form select:focus,
.reject-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.reject-form select {
  cursor: pointer;
}

.password-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrap input {
  padding-right: 44px;
}

.btn-toggle-pw {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  padding: 4px;
}

.btn-toggle-pw:hover {
  color: var(--text-primary);
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 20px;
  box-shadow: var(--shadow);
  z-index: 2000;
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-color: var(--success);
}

.toast.error {
  border-color: var(--danger);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .btn-toggle-sidebar {
    display: block;
  }

  .page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .filters {
    flex-direction: column;
  }

  .data-table {
    font-size: 13px;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.top-bar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-family: monospace;
}

.btn-theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}