@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --primary: #0a4f5c;
  --secondary: #0d6373;
  --accent: #6cd7e7;
  --accent-dark: #4ec5d8;
  --success: #00c48c;
  --warning: #ffb300;
  --danger: #ff6b6b;
  --background: linear-gradient(135deg, #f5fafb 0%, #e8f4f8 100%);
  --card-bg: #ffffff;
  --text-primary: #2d3748;
  --text-secondary: #718096;
  --border-color: #e2e8f0;
  --input-bg: #f7fafc;
  --input-border: #cbd5e0;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  --shadow: 0 4px 20px rgba(108, 215, 231, 0.15);
  --shadow-lg: 0 8px 32px rgba(108, 215, 231, 0.2);
  
  --transition: 0.3s ease;
}

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

body {
  font-family: 'Noto Sans SC', 'PingFang SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  text-align: center;
  padding: 32px 0;
  animation: fadeInDown 0.6s ease;
}

.logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-img-sidebar {
  height: 36px;
}

.header h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
}

.subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Card */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

/* Form Styles */
.form-card {
  animation: fadeInUp 0.6s ease 0.2s both;
}

.reservation-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.required {
  color: var(--accent-dark);
  margin-left: 2px;
}

.form-group input,
.form-group select {
  padding: 14px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 215, 231, 0.2);
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: var(--danger);
}

/* Radio Group */
.radio-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 12px 20px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.radio-item:hover {
  border-color: var(--accent);
}

.radio-item input[type="radio"] {
  display: none;
}

.radio-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--input-border);
  border-radius: 50%;
  position: relative;
  transition: var(--transition);
}

.radio-item input[type="radio"]:checked + .radio-custom {
  border-color: var(--accent);
}

.radio-item input[type="radio"]:checked + .radio-custom::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
}

.radio-label {
  font-size: 15px;
  color: var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #0a4f5c;
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(108, 215, 231, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-block {
  width: 100%;
  margin-top: 8px;
}

.btn-secondary {
  background: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn-success {
  background: linear-gradient(135deg, var(--success) 0%, #00b389 100%);
  color: white;
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 217, 165, 0.4);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger) 0%, #e63950 100%);
  color: white;
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

/* Status Card */
.status-card {
  text-align: center;
  animation: fadeInUp 0.6s ease;
}

.status-icon {
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

.status-icon.pending {
  animation: none;
}

.status-icon.rejected {
  animation: none;
}

.status-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.status-text {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.reservation-info {
  background: var(--input-bg);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: left;
  margin-bottom: 20px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.info-row:last-child {
  border-bottom: none;
}

.info-row.highlight {
  background: linear-gradient(135deg, rgba(108, 215, 231, 0.1) 0%, rgba(108, 215, 231, 0.05) 100%);
  margin: -20px;
  margin-bottom: 20px;
  padding: 20px;
  border-radius: var(--radius-md);
  border-bottom: none;
}

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

.info-value {
  font-weight: 600;
  font-size: 15px;
}

.info-value.time-slot {
  color: var(--success);
  font-size: 18px;
}

.success-info .info-value.time-slot {
  font-size: 20px;
}

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

/* Footer */
.footer {
  text-align: center;
  padding: 24px 0;
  color: var(--text-secondary);
  font-size: 12px;
}

/* Hidden */
.hidden {
  display: none !important;
}

/* Admin Styles */
.admin-body {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.05);
}

.sidebar-header {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.sidebar-nav {
  flex: 1;
  padding: 16px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.nav-link:hover {
  background: rgba(108, 215, 231, 0.1);
  color: var(--primary);
}

.sidebar-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
}

.admin-main {
  flex: 1;
  margin-left: 260px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
  font-size: 24px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 12px;
}

.admin-content {
  flex: 1;
  padding: 32px;
}

/* Stats Cards */
.stats-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon.total {
  background: rgba(108, 215, 231, 0.15);
  color: var(--accent-dark);
}

.stat-icon.pending {
  background: rgba(255, 193, 7, 0.15);
  color: var(--warning);
}

.stat-icon.approved {
  background: rgba(0, 217, 165, 0.15);
  color: var(--success);
}

.stat-icon.rejected {
  background: rgba(255, 71, 87, 0.15);
  color: var(--danger);
}

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

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

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

/* Filter Bar */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-group label {
  color: var(--text-secondary);
}

.filter-select {
  padding: 10px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  cursor: pointer;
}

.search-group {
  display: flex;
  gap: 12px;
}

.search-input {
  padding: 10px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  width: 250px;
  outline: none;
}

.search-input:focus {
  border-color: var(--accent);
}

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

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

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

.data-table th {
  background: var(--secondary);
  font-weight: 600;
  font-size: 13px;
  color: #ffffff; /* 改为白色以便在深色背景上更清晰 */
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table tbody tr {
  transition: var(--transition);
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

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

/* Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.pending {
  background: rgba(255, 193, 7, 0.15);
  color: var(--warning);
}

.status-badge.approved {
  background: rgba(0, 217, 165, 0.15);
  color: var(--success);
}

.status-badge.rejected {
  background: rgba(255, 71, 87, 0.15);
  color: var(--danger);
}

.source-badge {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  background: var(--input-bg);
  color: var(--text-secondary);
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: 8px;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s ease;
}

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

.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--input-bg);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 20px 24px;
  border-top: 1px solid var(--border-color);
}

.modal .form-group {
  margin-bottom: 20px;
}

.modal .form-group:last-child {
  margin-bottom: 0;
}

.modal .form-group label {
  display: block;
  margin-bottom: 8px;
}

.modal .form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

.modal .form-control:focus {
  border-color: var(--accent);
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 16px;
  }
  
  .header {
    padding: 24px 0;
  }
  
  .header h1 {
    font-size: 24px;
  }
  
  .card {
    padding: 20px;
  }
  
  .radio-group {
    flex-direction: column;
  }
  
  .radio-item {
    width: 100%;
  }
  
  .admin-body {
    flex-direction: column;
  }
  
  .menu-toggle {
    display: flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -260px;
    width: 260px;
    height: 100vh;
    transition: left 0.3s ease;
    z-index: 200;
  }

  .sidebar.active {
    left: 0;
  }

  .sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
  }

  .menu-close {
    display: flex;
    margin-left: auto;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
  }

  .sidebar-header {
    flex-direction: row;
    justify-content: flex-start;
    gap: 12px;
  }

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

  .admin-header {
    padding: 16px;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--card-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  }

  .header-left {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .header-left h1 {
    font-size: 18px;
  }
  
  .admin-content {
    padding: 16px;
  }
  
  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 16px;
  }

  .stat-icon {
    width: 40px;
    height: 40px;
  }

  .stat-value {
    font-size: 24px;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-group {
    width: 100%;
  }
  
  .search-input {
    flex: 1;
    width: auto;
  }
  
  /* 移动端隐藏表格，显示卡片列表 */
  .table-container {
    background: transparent;
    border: none;
    overflow: visible;
  }
  
  .data-table {
    display: none;
  }

  .modal-content {
    width: 95%;
    max-width: none;
    margin: 16px;
  }

  .modal-footer {
    flex-direction: column;
  }

  .modal-footer .btn {
    width: 100%;
  }
  
  /* 移动端卡片样式 */
  .reservation-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .reservation-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
    transition: transform 0.3s ease;
    touch-action: pan-y;
  }

  .reservation-card .card-content {
    padding: 16px;
  }

  .reservation-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
  }

  .reservation-card .card-number {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
  }

  .reservation-card .card-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .reservation-card .card-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
  }

  .reservation-card .label {
    color: var(--text-secondary);
  }

  .reservation-card .value {
    font-weight: 500;
    color: var(--text-primary);
    text-align: right;
    max-width: 60%;
    word-break: break-all;
  }

  .reservation-card .card-actions {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 120px;
    display: flex;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    background: var(--card-bg);
    border-left: 1px solid var(--border-color);
  }

  .reservation-card.active .card-actions {
    transform: translateX(0);
  }

  .reservation-card .card-actions button {
    flex: 1;
    height: 100%;
    border: none;
    border-radius: 0;
    font-size: 12px;
  }
  
  .empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .stats-cards {
    grid-template-columns: 1fr;
  }

  .action-buttons {
    flex-direction: column;
  }
}

/* Login Modal */
.login-modal-content {
  max-width: 400px;
}

.error-text {
  color: var(--danger);
  font-size: 14px;
  text-align: center;
  margin-top: 12px;
}

/* Menu Toggle */
.menu-toggle {
  display: none;
  padding: 8px;
}

.menu-close {
  display: none;
}

/* Refresh Badge */
.refresh-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 10px;
  height: 10px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid var(--card-bg);
}

#refresh-btn {
  position: relative;
}