/* === 預約系統專屬樣式 === */

:root {
  --booking-bg: #fdfcff;
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(201, 180, 232, 0.3);
  --glass-shadow: 0 8px 32px 0 rgba(185, 157, 224, 0.08);
  --success-color: #52c41a;
  --pending-color: #faad14;
  --danger-color: #ff4d4f;
  --dark-purple: #7a5cba;
}

body.booking-body {
  background: linear-gradient(135deg, #fbfaff 0%, #f3effa 100%);
  min-height: 100vh;
}

/* 預約版面容器 */
.booking-container {
  max-width: 860px;
  margin: 40px auto;
  padding: 0 20px;
}

/* Glassmorphism 卡片基礎 */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
  padding: 30px;
  transition: all 0.3s ease;
}

.glass-card:hover {
  box-shadow: 0 12px 40px 0 rgba(185, 157, 224, 0.12);
}

/* === 註冊登入區塊 === */
.auth-wrapper {
  max-width: 420px;
  margin: 60px auto;
}

.auth-header {
  text-align: center;
  margin-bottom: 24px;
}

.auth-header h2 {
  font-family: "Noto Serif TC", serif;
  font-weight: 700;
  color: #2c2c2c;
  margin: 0 0 8px 0;
}

.auth-header p {
  color: #777;
  font-size: 0.95rem;
  margin: 0;
}

/* 輸入框樣式 */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4a4a4a;
  margin-bottom: 8px;
}

.form-group input, 
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid #dcd1f0;
  background: rgba(255, 255, 255, 0.9);
  font-family: inherit;
  font-size: 0.95rem;
  color: #333;
  transition: all 0.25s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-main-dark);
  box-shadow: 0 0 0 3px rgba(201, 180, 232, 0.35);
  background: #ffffff;
}

/* 登入按鈕 */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--brand-main) 0%, var(--brand-main-dark) 100%);
  color: white;
  border: none;
  padding: 12px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 15px rgba(201, 180, 232, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(185, 157, 224, 0.6);
}

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

/* 切換模式連結 */
.auth-toggle {
  text-align: center;
  margin-top: 18px;
  font-size: 0.9rem;
  color: #666;
}

.auth-toggle a {
  color: var(--dark-purple);
  text-decoration: none;
  font-weight: 600;
  margin-left: 4px;
}

.auth-toggle a:hover {
  text-decoration: underline;
}

/* === 會員大廳儀表板 === */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.user-info h2 {
  font-family: "Noto Serif TC", serif;
  font-size: 1.6rem;
  margin: 0 0 4px 0;
  color: #222;
}

.user-info p {
  margin: 0;
  font-size: 0.9rem;
  color: #666;
}

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

.btn-secondary {
  background: white;
  color: #555;
  border: 1px solid #dcd1f0;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: #f7f5fc;
  color: var(--dark-purple);
  border-color: var(--brand-main);
}

/* 分頁選單 (Tabs) */
.dashboard-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(201, 180, 232, 0.2);
  padding-bottom: 8px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 10px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: #777;
  cursor: pointer;
  position: relative;
  transition: all 0.25s ease;
  font-family: inherit;
}

.tab-btn:hover {
  color: var(--dark-purple);
}

.tab-btn.active {
  color: var(--dark-purple);
  font-weight: 600;
}

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -9px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--brand-main);
  border-radius: 3px 3px 0 0;
}

/* 分頁內容面板 */
.tab-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === 線上預約表單 === */
.booking-section-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: #333;
  margin: 0 0 16px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.booking-section-title span.step-badge {
  background: var(--brand-line);
  color: var(--dark-purple);
  font-size: 0.8rem;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: bold;
}

/* 課程選擇卡片 */
.course-selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.course-opt-card {
  border: 1px solid #e5dbf7;
  background: white;
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
}

.course-opt-card:hover {
  border-color: var(--brand-main-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(185, 157, 224, 0.1);
}

.course-opt-card.selected {
  border-color: var(--dark-purple);
  background: #fbf9ff;
  box-shadow: 0 4px 15px rgba(201, 180, 232, 0.2);
}

.course-opt-card h4 {
  margin: 8px 0 4px 0;
  font-size: 0.95rem;
  color: #2c2c2c;
}

.course-opt-card p {
  margin: 0;
  font-size: 0.8rem;
  color: #777;
}

.course-opt-card input[type="radio"] {
  position: absolute;
  opacity: 0;
}

/* 靜態課程圖標 */
.course-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 8px;
}

/* 時段選擇樣式 */
.time-slots-container {
  margin-top: 14px;
}

.time-slot-heading {
  font-size: 0.9rem;
  font-weight: 600;
  color: #666;
  margin: 14px 0 8px 0;
}

.time-slots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.time-slot-card {
  border: 1px solid #e5dbf7;
  background: white;
  border-radius: 8px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: #444;
  transition: all 0.2s ease;
}

.time-slot-card:hover:not(.disabled) {
  border-color: var(--brand-main);
  background: #fbf9ff;
  color: var(--dark-purple);
}

.time-slot-card.selected {
  background: var(--brand-main);
  border-color: var(--brand-main);
  color: white;
  box-shadow: 0 2px 8px rgba(201, 180, 232, 0.4);
}

.time-slot-card.disabled {
  background: #f5f5f5;
  border-color: #e8e8e8;
  color: #ccc;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* === 我的預約列表 === */
.bookings-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: #888;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
}

.booking-item-card {
  background: white;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.booking-item-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.booking-item-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--brand-main);
}

.booking-item-card.confirmed::before {
  background-color: var(--success-color);
}

.booking-item-card.pending::before {
  background-color: var(--pending-color);
}

.booking-item-card.cancelled::before {
  background-color: #d9d9d9;
}

.booking-item-details {
  flex: 1;
}

.booking-item-meta {
  display: flex;
  gap: 12px;
  font-size: 0.82rem;
  color: #777;
  margin-top: 6px;
  flex-wrap: wrap;
}

.booking-item-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.booking-item-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #222;
  margin: 0;
}

.booking-item-status-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

/* 狀態標籤 */
.status-badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

.status-badge.confirmed {
  background-color: #f6ffed;
  color: var(--success-color);
  border: 1px solid #b7eb8f;
}

.status-badge.pending {
  background-color: #fffbe6;
  color: var(--pending-color);
  border: 1px solid #ffe58f;
}

.status-badge.cancelled {
  background-color: #f5f5f5;
  color: #888;
  border: 1px solid #d9d9d9;
}

.btn-cancel {
  background: white;
  border: 1px solid #fcd2d2;
  color: #f5222d;
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-cancel:hover {
  background: #fff1f0;
  border-color: #ff4d4f;
}

/* === 教師審核面板 === */
.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-filter {
  display: flex;
  gap: 8px;
}

.admin-filter select {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid #dcd1f0;
  font-size: 0.88rem;
  outline: none;
}

.admin-filter select:focus {
  border-color: var(--brand-main);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid #ece8f5;
  border-radius: 12px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
  background: white;
}

.admin-table th,
.admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid #f0ecf7;
}

.admin-table th {
  background-color: #f9f8fc;
  font-weight: 600;
  color: #4a4a4a;
}

.admin-table tbody tr:hover {
  background-color: #faf9ff;
}

.admin-actions {
  display: flex;
  gap: 8px;
}

.btn-approve {
  background-color: #f6ffed;
  border: 1px solid #b7eb8f;
  color: var(--success-color);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.btn-approve:hover {
  background-color: var(--success-color);
  color: white;
  border-color: var(--success-color);
}

.btn-reject {
  background-color: #fff1f0;
  border: 1px solid #ffa39e;
  color: var(--danger-color);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.btn-reject:hover {
  background-color: var(--danger-color);
  color: white;
  border-color: var(--danger-color);
}

/* === 動態 Toast 通知 === */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: #2c2c2c;
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.92rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  background: #52c41a;
}

.toast-error {
  background: #ff4d4f;
}

.toast-info {
  background: var(--dark-purple);
}

/* RWD 微調 */
@media (max-width: 576px) {
  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .booking-item-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .booking-item-status-actions {
    align-items: flex-start;
    width: 100%;
    border-top: 1px solid #f0f0f0;
    padding-top: 10px;
  }
  .toast-container {
    left: 20px;
    right: 20px;
    bottom: 20px;
  }
  .toast {
    width: 100%;
    justify-content: center;
  }
}