:root {
  --primary: #06b6d4;
  --primary-dark: #0891b2;
  --primary-light: #cffafe;
  --secondary: #3b82f6;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --purple: #8b5cf6;
  --purple-light: #ede9fe;
  --bg-main: #fefce8;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #fde68a;
  --radius-lg: 24px;
  --radius-md: 14px;
  --shadow: 0 4px 0 #fed7aa;
  --shadow-lg: 0 10px 0 #fde68a;
}

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

body {
  font-family: "Chalkboard SE", "Comic Sans MS", "PingFang TC", "Noto Sans TC", system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #fffbeb 0%, #f0fdf4 50%, #eff6ff 100%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.6;
}

/* Header */
.app-header {
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.05);
}

.header-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

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

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #0d9488 0%, #3b82f6 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  box-shadow: 0 4px 10px rgb(13 148 136 / 0.25);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.brand-text p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: white;
  color: var(--text-main);
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

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

.btn-accent {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn-accent:hover {
  background: #d97706;
}

/* Layout */
.app-layout {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
}

/* Sidebar Timeline */
.sidebar {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  height: calc(100vh - 120px);
  position: sticky;
  top: 88px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.sidebar-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.sidebar-title h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.search-box {
  position: relative;
  margin-bottom: 12px;
}

.search-box input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  background: #f8fafc;
}

.search-box .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.filter-pills {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 12px;
}

.pill {
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  background: #f1f5f9;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  border: none;
  font-weight: 600;
}

.pill.active {
  background: var(--primary);
  color: white;
}

.date-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 4px;
}

/* 📊 Sidebar Course Progress Panel */
.course-progress-panel {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.progress-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 0.78rem;
  font-weight: 800;
}

.progress-info-title {
  color: #475569;
}

.progress-info-val {
  color: #0f766e;
  font-family: monospace, sans-serif;
}

.progress-track {
  width: 100%;
  height: 8px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #059669);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.date-card {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: white;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.date-card:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: translateX(2px);
}

.date-card.active {
  border-color: var(--primary);
  background: #f0fdfa;
  border-left: 5px solid var(--primary);
  box-shadow: 0 2px 4px rgb(13 148 136 / 0.1);
}

/* 📅 Date Card Completed State */
.date-card.is-completed {
  background: #f0fdf4;
  border-color: #86efac;
}

.date-card.is-completed.active {
  background: #ecfdf5;
  border-color: #10b981;
  border-left: 5px solid #10b981;
}

.sidebar-date-checkbox {
  width: 17px;
  height: 17px;
  cursor: pointer;
  accent-color: #10b981;
  border-radius: 4px;
  flex-shrink: 0;
}

.completed-mini-badge {
  font-size: 0.68rem;
  font-weight: 800;
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #86efac;
  padding: 1px 6px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

/* 🎯 Daily Banner Course Completion Box */
.course-completion-box {
  background: #f8fafc;
  border: 2px dashed #cbd5e1;
  border-radius: 14px;
  padding: 12px 18px;
  margin: 16px 0 12px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: all 0.25s ease;
}

.course-completion-box.is-completed {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border: 2px solid #22c55e;
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.15);
}

.completion-checkbox-label {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
  flex: 1;
}

.completion-input {
  width: 24px;
  height: 24px;
  accent-color: #16a34a;
  cursor: pointer;
  flex-shrink: 0;
}

.completion-label-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.completion-main-title {
  font-size: 1.05rem;
  font-weight: 900;
  color: #334155;
  transition: color 0.2s;
}

.course-completion-box.is-completed .completion-main-title {
  color: #15803d;
}

.completion-sub-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #64748b;
  line-height: 1.3;
}

.course-completion-box.is-completed .completion-sub-title {
  color: #166534;
}

.completion-status-pill {
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 800;
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  color: #64748b;
  white-space: nowrap;
  transition: all 0.2s;
}

.course-completion-box.is-completed .completion-status-pill {
  background: #22c55e;
  border-color: #16a34a;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.25);
}

.date-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  margin-bottom: 4px;
}

.date-tag {
  font-weight: 700;
  color: var(--primary);
}

.week-badge {
  font-size: 0.7rem;
  background: #e2e8f0;
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
}

.date-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 6px;
}

.date-card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.mini-tag {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}

.tag-asd { background: var(--primary-light); color: var(--primary-dark); }
.tag-ld { background: var(--purple-light); color: var(--purple); }
.tag-ebd { background: var(--danger-light); color: var(--danger); }

/* Main Content Area */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Daily Banner Card */
.daily-banner {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.daily-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.banner-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.date-pill {
  background: #f1f5f9;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.curriculum-code {
  background: #e0e7ff;
  color: #3730a3;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
}

.banner-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.25;
}

.banner-summary {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  max-width: 900px;
}

.banner-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Content Grid */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

/* 40min Lesson Timeline */
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.timeline-item {
  display: flex;
  gap: 14px;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 36px;
  top: 36px;
  bottom: -14px;
  width: 2px;
  background: #e2e8f0;
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-time {
  min-width: 72px;
  height: 36px;
  background: #f1f5f9;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.timeline-content {
  flex: 1;
  background: #f8fafc;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid #e2e8f0;
}

.timeline-stage {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Special Needs Differential Strategies */
.scaffold-box {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.scaffold-item {
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid;
}

.scaffold-asd {
  background: #f0fdfa;
  border-color: #99f6e4;
}

.scaffold-ld {
  background: #faf5ff;
  border-color: #e9d5ff;
}

.scaffold-ebd {
  background: #fff1f2;
  border-color: #fecdd3;
}

.scaffold-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.scaffold-label {
  font-weight: 700;
  font-size: 0.95rem;
}

.scaffold-body {
  font-size: 0.88rem;
  color: var(--text-main);
  line-height: 1.5;
}

/* Visual Classroom Card Display */
.visual-card-preview {
  background: linear-gradient(135deg, #f0fdfa 0%, #e0f2fe 100%);
  border: 2px dashed #0d9488;
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  margin-top: 12px;
}

.visual-card-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: #0f766e;
  margin-bottom: 12px;
}

.visual-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.visual-step {
  background: white;
  padding: 14px 10px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgb(0 0 0 / 0.04);
}

.step-num {
  width: 28px;
  height: 28px;
  background: #0d9488;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin: 0 auto 8px;
  font-size: 0.85rem;
}

.step-text {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Checklist */
.checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  background: #f8fafc;
  border-radius: var(--radius-md);
  border: 1px solid #e2e8f0;
  cursor: pointer;
  transition: all 0.2s;
}

.check-item:hover {
  background: #f1f5f9;
}

.check-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--primary);
  cursor: pointer;
}

.check-item-text {
  font-size: 0.88rem;
  color: var(--text-main);
  flex: 1;
}

/* IEP Goal Box */
.iep-box {
  background: #fefce8;
  border: 1px solid #fef08a;
  border-left: 5px solid #ca8a04;
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: #713f12;
  position: relative;
}

.copy-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  background: white;
  border: 1px solid #fef08a;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.copy-badge:hover {
  background: #fef08a;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgb(15 23 42 / 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal-overlay.open {
  display: flex;
}

.modal-content {
  background: white;
  width: min(720px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-main);
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 0.9rem;
}

/* Print Styles */
@media print {
  .app-header, .sidebar, .header-actions, .modal-overlay, .copy-badge {
    display: none !important;
  }
  .app-layout {
    display: block;
    padding: 0;
  }
  .card, .daily-banner {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
    margin-bottom: 20px;
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .app-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    height: auto;
    max-height: 380px;
    position: static;
  }
}

/* 🎯 字嗨注音字型 (Bpmf Zihi Kai Std · 右側直排教育部標準楷體注音) */
.zhuyin-mode {
  font-family: "Bpmf Zihi Kai Std", "Bpmf Iansui", "BiauKai", "DFKai-SB", serif !important;
  letter-spacing: 0.04em;
  line-height: 2.4 !important;
}

.plain-text-mode {
  font-family: inherit;
  letter-spacing: normal;
}

/* 🏫 教師精確教學指引與手冊折疊卡片 (Teacher Instructional Guide Accordion) */
.guide-step-card {
  border: 1.5px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.03);
  transition: all 0.2s ease;
}

.guide-step-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 4px 8px rgba(0,0,0,0.06);
}

.guide-step-summary {
  padding: 14px 18px;
  background: #f8fafc;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  user-select: none;
  list-style: none;
}

.guide-step-summary::-webkit-details-marker {
  display: none;
}

.guide-step-card[open] .guide-step-summary {
  background: #f1f5f9;
  border-bottom: 1.5px solid #e2e8f0;
}

.guide-step-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.guide-step-badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.guide-step-time {
  background: #e2e8f0;
  color: #334155;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 6px;
}

.guide-step-title {
  font-size: 1.05rem;
  font-weight: 900;
  color: #0f172a;
}

.guide-step-summary-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.guide-toggle-icon {
  font-size: 0.9rem;
  font-weight: 900;
  color: #64748b;
  transition: transform 0.2s ease;
}

.guide-step-card[open] .guide-toggle-icon {
  transform: rotate(180deg);
}

.guide-step-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: #ffffff;
}

.guide-box {
  border-radius: 10px;
  padding: 12px 14px;
}

.guide-box-goal {
  background: #f0fdfa;
  border: 1px solid #99f6e4;
  color: #115e59;
}

.guide-box-ops {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e40af;
}

.guide-box-script {
  background: #fefce8;
  border: 1px solid #fef08a;
  color: #854d0e;
}

.guide-box-students {
  background: #f8fafc;
  border: 1.5px dashed #cbd5e1;
}

.guide-box-warning {
  background: #fff1f2;
  border: 1px solid #fecdd3;
  color: #9f1239;
}

/* ==========================================================================
   全國特教教材教具比賽 · 童趣手繪插畫與生動動畫系統 (Child-Friendly Storybook Theme)
   去 AI 機械感 · 結合特教 UDL 多感官動態互動、溫暖日系手帳與萌寵小英雄伴學
   ========================================================================== */

/* 1. 溫暖童趣背景與手繪質感 */
body {
  background: #fffdf5 radial-gradient(#fed7aa 0.85px, transparent 0.85px);
  background-size: 28px 28px;
  background-attachment: fixed;
}

/* 2. 生動童趣關鍵幀動畫 */
@keyframes floatGentle {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-7px) rotate(1deg); }
}

@keyframes mascotWiggle {
  0%, 100% { transform: scale(1) rotate(0deg); }
  25% { transform: scale(1.08) rotate(-4deg); }
  75% { transform: scale(1.08) rotate(4deg); }
}

@keyframes mascotJump {
  0% { transform: scale(1) translateY(0); }
  35% { transform: scale(1.25, 0.8) translateY(-14px); }
  65% { transform: scale(0.9, 1.15) translateY(4px); }
  100% { transform: scale(1) translateY(0); }
}

@keyframes pulseSparkle {
  0%, 100% { opacity: 0.8; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2) rotate(15deg); }
}

@keyframes breathCircle {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.35); opacity: 1; filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.6)); }
}

@keyframes popInBounce {
  0% { transform: scale(0.7); opacity: 0; }
  70% { transform: scale(1.06); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes rainbowGlow {
  0% { filter: drop-shadow(0 4px 8px rgba(245, 158, 11, 0.3)); }
  50% { filter: drop-shadow(0 4px 14px rgba(236, 72, 153, 0.45)); }
  100% { filter: drop-shadow(0 4px 8px rgba(245, 158, 11, 0.3)); }
}

/* 3. 日系手帳紙膠帶效果 (Washi Tape) */
.washi-tape-strip {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-1.2deg);
  width: 140px;
  height: 24px;
  background: rgba(254, 240, 138, 0.92);
  border: 1px dashed rgba(202, 138, 4, 0.4);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
  clip-path: polygon(2% 0%, 98% 2%, 99% 98%, 1% 97%);
  z-index: 10;
  pointer-events: none;
}

.washi-tape-pink {
  background: rgba(251, 207, 232, 0.92);
  border-color: rgba(219, 39, 119, 0.4);
}

.washi-tape-mint {
  background: rgba(167, 243, 208, 0.92);
  border-color: rgba(5, 150, 105, 0.4);
}

.washi-tape-blue {
  background: rgba(186, 230, 253, 0.92);
  border-color: rgba(2, 132, 199, 0.4);
}

/* 4. 手繪繪本風童趣歡迎 Hero Banner */
.storybook-welcome-hero {
  position: relative;
  background: linear-gradient(135deg, #fef9c3 0%, #ecfdf5 45%, #eff6ff 100%);
  border: 3px solid #fde68a;
  border-radius: 28px 20px 26px 22px / 22px 26px 20px 28px;
  box-shadow: 0 8px 0 #fed7aa, 0 16px 28px rgba(245, 158, 11, 0.15);
  padding: 24px 28px;
  margin-bottom: 24px;
  overflow: visible;
  animation: popInBounce 0.5s ease-out;
}

.hero-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.hero-title-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  border: 2px solid #f59e0b;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 900;
  color: #b45309;
  box-shadow: 0 3px 0 #fde68a;
}

.hero-main-title {
  font-size: 1.55rem;
  font-weight: 900;
  color: #1e3a8a;
  letter-spacing: -0.5px;
  text-shadow: 1px 1px 0 #ffffff;
}

.hero-subtitle {
  font-size: 0.92rem;
  font-weight: 700;
  color: #475569;
  margin-top: 2px;
}

/* 5. 四位小英雄萌寵互動區 */
.mascots-interactive-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 18px 0 14px;
}

@media (max-width: 900px) {
  .mascots-interactive-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

.mascot-avatar-card {
  position: relative;
  background: #ffffff;
  border: 2.5px solid #fed7aa;
  border-radius: 20px;
  padding: 12px 14px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 0 #fed7aa;
  user-select: none;
}

.mascot-avatar-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 10px 0 #fdba74;
  border-color: #f97316;
}

.mascot-avatar-card:active {
  transform: translateY(2px) scale(0.97);
  box-shadow: 0 2px 0 #fdba74;
}

.mascot-avatar-card.yu {
  border-color: #fde047;
  box-shadow: 0 4px 0 #fde047;
}
.mascot-avatar-card.jun {
  border-color: #fed7aa;
  box-shadow: 0 4px 0 #fed7aa;
}
.mascot-avatar-card.he {
  border-color: #a7f3d0;
  box-shadow: 0 4px 0 #a7f3d0;
}
.mascot-avatar-card.jia {
  border-color: #fed7aa;
  box-shadow: 0 4px 0 #fed7aa;
}

.mascot-face-anim {
  font-size: 2.8rem;
  display: inline-block;
  margin-bottom: 4px;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.08));
  animation: floatGentle 3.5s ease-in-out infinite;
}

.mascot-avatar-card:nth-child(2) .mascot-face-anim {
  animation-delay: 0.6s;
}
.mascot-avatar-card:nth-child(3) .mascot-face-anim {
  animation-delay: 1.2s;
}
.mascot-avatar-card:nth-child(4) .mascot-face-anim {
  animation-delay: 1.8s;
}

.mascot-name-tag {
  font-size: 1.15rem;
  font-weight: 900;
  color: #1e293b;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.mascot-role-badge {
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
  margin-top: 4px;
  display: inline-block;
}

.mascot-speech-bubble-pop {
  font-size: 0.8rem;
  font-weight: 800;
  color: #475569;
  background: #f8fafc;
  border: 1.5px dashed #cbd5e1;
  border-radius: 12px;
  padding: 6px 8px;
  margin-top: 8px;
  line-height: 1.4;
  transition: all 0.2s;
}

.mascot-avatar-card:hover .mascot-speech-bubble-pop {
  background: #fef08a;
  border-color: #eab308;
  color: #854d0e;
}

/* 6. 今日心情氣象站 (Emotion Weather Station) */
.emotion-weather-station {
  background: #ffffff;
  border: 2.5px solid #bae6fd;
  border-radius: 20px;
  padding: 14px 18px;
  margin-top: 14px;
  box-shadow: 0 4px 0 #bae6fd;
}

.emotion-station-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.emotion-station-title {
  font-size: 0.95rem;
  font-weight: 900;
  color: #0369a1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.emotion-buttons-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.emotion-btn {
  background: #f0f9ff;
  border: 2px solid #e0f2fe;
  border-radius: 16px;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 900;
  color: #0369a1;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  user-select: none;
}

.emotion-btn:hover {
  transform: translateY(-3px) scale(1.05);
  background: #e0f2fe;
  border-color: #38bdf8;
  box-shadow: 0 4px 0 #7dd3fc;
}

.emotion-btn.active {
  background: #fef08a;
  border-color: #f59e0b;
  color: #92400e;
  box-shadow: 0 4px 0 #f59e0b;
  transform: translateY(-2px);
}

.emotion-feedback-box {
  margin-top: 12px;
  padding: 10px 16px;
  background: #fdf4ff;
  border: 2px dashed #f0abfc;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  font-weight: 800;
  color: #86198f;
  animation: popInBounce 0.3s ease-out;
}

.calming-breathing-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  display: inline-block;
  animation: breathCircle 4s ease-in-out infinite;
}

/* 7. 超能力寶箱星星存摺 (Treasure Chest Bank) */
.index-students-container {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 10px;
  margin-bottom: 12px;
  box-sizing: border-box;
}

.index-students-header {
  font-size: 0.75rem;
  font-weight: 800;
  color: #64748b;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.index-students-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  box-sizing: border-box;
  width: 100%;
}

.treasure-chest-card {
  background: linear-gradient(135deg, #ffffff 0%, #fffbeb 100%);
  border: 1.5px solid #fed7aa;
  border-radius: 10px;
  padding: 6px 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  box-shadow: 0 2px 0 #fed7aa;
  transition: all 0.2s;
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
}

.treasure-chest-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 0 #fdba74;
  border-color: #f97316;
}

.chest-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  width: 100%;
  box-sizing: border-box;
}

.chest-card-identity {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  overflow: hidden;
}

.chest-avatar {
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
  transition: transform 0.15s;
  flex-shrink: 0;
}

.chest-avatar:hover {
  transform: scale(1.25);
}

.chest-name {
  font-size: 0.85rem;
  font-weight: 900;
  color: #1e293b;
  white-space: nowrap;
}

.chest-role {
  font-size: 0.62rem;
  font-weight: 800;
  color: #78350f;
  background: #fef3c7;
  padding: 1px 4px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

.chest-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(254, 243, 199, 0.45);
  border-radius: 8px;
  padding: 3px 6px;
  box-sizing: border-box;
  width: 100%;
}

.chest-star-count {
  font-size: 0.85rem;
  font-weight: 900;
  color: #b45309;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex: 1;
  text-align: center;
  white-space: nowrap;
  user-select: none;
}

.chest-btn-mini {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid #d97706;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.85rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  transition: all 0.15s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.chest-btn-mini:hover {
  background: #fde047;
  transform: scale(1.15);
}

.chest-btn-mini:active {
  transform: scale(0.9);
}

.chest-btn-plus {
  background: #f59e0b;
  color: #ffffff;
  border-color: #d97706;
}

.chest-btn-plus:hover {
  background: #ea580c;
  color: #ffffff;
}

/* 8. 課堂卡片手繪外框與精緻裝飾 */
.card, .daily-banner {
  border-radius: 24px 20px 22px 26px / 22px 24px 26px 20px;
  border: 2.5px solid #fed7aa !important;
  box-shadow: 0 6px 0 #fed7aa, 0 12px 24px rgba(245, 158, 11, 0.1) !important;
  background: #ffffff;
  position: relative;
}

.daily-banner {
  background: linear-gradient(180deg, #ffffff 0%, #fffdf5 100%) !important;
}

.card:hover {
  box-shadow: 0 8px 0 #fed7aa, 0 16px 28px rgba(245, 158, 11, 0.14) !important;
}

/* 9. 畫布彩帶與星星全螢幕特效層 */
#confettiCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99999;
}

/* ==========================================================================
   快速週次與日期切換列 (Quick Week & Date Switcher)
   ========================================================================== */
.sidebar-quick-jump {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1.5px solid #bfdbfe;
  border-radius: 14px;
  padding: 10px 12px;
  margin-bottom: 12px;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.08);
}

.sidebar-quick-jump-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 0.8rem;
  font-weight: 800;
  color: #1e40af;
}

.quick-jump-select {
  width: 100%;
  padding: 8px 12px;
  border-radius: 10px;
  border: 2px solid #3b82f6;
  background: #ffffff;
  color: #1e3a8a;
  font-size: 0.85rem;
  font-weight: 800;
  cursor: pointer;
  outline: none;
  box-shadow: 0 2px 0 #2563eb;
  transition: all 0.2s ease;
}

.quick-jump-select:hover {
  border-color: #1d4ed8;
  transform: translateY(-1px);
}

.quick-course-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  padding: 10px 16px;
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 2px solid #f59e0b;
  border-radius: 16px;
  box-shadow: 0 3px 0 #d97706, 0 6px 16px rgba(245, 158, 11, 0.15);
  flex-wrap: wrap;
}

.quick-nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 320px;
}

.nav-step-btn {
  padding: 7px 14px;
  border-radius: 9999px;
  border: 2px solid #d97706;
  background: #ffffff;
  color: #92400e;
  font-size: 0.84rem;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 2px 0 #b45309;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
}

.nav-step-btn:hover {
  background: #f59e0b;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 0 #b45309;
}

.nav-step-btn:active {
  transform: translateY(1px);
  box-shadow: none;
}

.quick-select-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  background: #ffffff;
  padding: 4px 10px;
  border-radius: 9999px;
  border: 2px solid #f59e0b;
  box-shadow: 0 2px 0 #d97706;
}

.quick-select-icon {
  font-size: 1.1rem;
}

.quick-select-dropdown {
  flex: 1;
  border: none;
  background: transparent;
  color: #78350f;
  font-size: 0.9rem;
  font-weight: 900;
  cursor: pointer;
  outline: none;
  width: 100%;
}

.quick-nav-right {
  display: flex;
  align-items: center;
}

.quick-nav-hint {
  font-size: 0.78rem;
  font-weight: 800;
  color: #92400e;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .quick-course-nav-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
  }
  .quick-nav-left {
    min-width: 100%;
  }
  .nav-step-btn {
    padding: 6px 10px;
    font-size: 0.78rem;
  }
  .quick-select-dropdown {
    font-size: 0.82rem;
  }
  .quick-nav-right {
    display: none;
  }
}