/* ================================================
   Sub-page Shared Styles
   ================================================ */

/* ---- Page Hero (smaller) ---- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff; padding: var(--space-16) var(--space-4) var(--space-12);
  text-align: center;
}
.page-hero__title {
  font-size: var(--text-4xl); color: #fff;
  margin-bottom: var(--space-2);
}
.page-hero__desc {
  font-size: var(--text-lg); opacity: .85;
  max-width: 600px; margin: 0 auto;
}

/* ---- Content Card ---- */
.content-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-8);
}
.content-card h3 {
  color: var(--color-primary-dark);
  margin-bottom: var(--space-4);
  font-size: var(--text-2xl);
}
.content-card p { line-height: 2; }

/* 吉祥物圖片置中修復 */
.mascot-center {
  display: block !important;
  margin-left: auto !important;
  margin-right: auto !important;
  margin-bottom: var(--space-4);
  object-fit: contain;
}

/* ---- Schedule Tab Navigation (Enhanced) ---- */
.tabs--premium {
  display: inline-flex;
  background: var(--gray-100);
  padding: 6px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-10);
  border: none;
  gap: 4px;
}
.tabs--premium .tab-btn {
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-8);
  border: none;
  margin-bottom: 0;
  transition: all var(--duration-normal) var(--ease-out-expo);
  color: var(--gray-500);
  font-weight: 700;
  font-size: var(--text-base);
}
.tabs--premium .tab-btn:hover {
  background: rgba(255,255,255,0.5);
  color: var(--color-primary);
}
.tabs--premium .tab-btn.active {
  background: #fff;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  border-bottom: none;
}

/* ---- Schedule Card / Table Remake ---- */
.schedule-card {
  background: #fff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-4);
  display: flex; align-items: stretch;
  transition: all var(--duration-normal) var(--ease-out-expo);
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
}
.schedule-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-primary-light);
}
.schedule-card--keynote  { border-left: 6px solid #e65100; }
.schedule-card--paper    { border-left: 6px solid #6a1b9a; }
.schedule-card--panel    { border-left: 6px solid #e65100; }
.schedule-card--tour     { border-left: 6px solid #2e7d32; }
.schedule-card--activity { border-left: 6px solid #2e7d32; }
.schedule-card--transport { border-left: 6px solid #1d6fa4; }
.schedule-card--social   { border-left: 6px solid #c2185b; }
.schedule-card--forum    { border-left: 6px solid #e65100; }
.schedule-card--break    { border-left: 6px solid var(--gray-200); background: var(--gray-50); }

.schedule-card__time {
  min-width: 160px; padding: var(--space-6) var(--space-5);
  font-weight: 800; font-size: var(--text-base);
  color: var(--color-primary-dark); display: flex; align-items: center; justify-content: center;
  background: var(--gray-50);
  border-right: 1px solid var(--gray-100);
}
.schedule-card__body {
  flex: 1; padding: var(--space-5) var(--space-6);
}
.schedule-card__title {
  font-size: var(--text-lg); font-weight: 700; color: var(--gray-800);
  margin-bottom: var(--space-2); line-height: 1.4;
}
.schedule-card__meta {
  display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-1);
}
.schedule-card .tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; font-size: 11px;
}
.schedule-card .tag .material-symbols-outlined { font-size: 14px; }
/* TAG 色底白字：接駁/導覽/晚宴/科普論壇/專題演講/座談會/論文發表 */
.tag--type { color: #fff !important; font-weight: 600; border-radius: var(--radius-full); }
/* 地名 TAG：深灰底白字 */
.tag--location { background: #546e7a; color: #fff; border-radius: var(--radius-full); font-weight: 500; }
.tag--speaker  { background: #fff3e0; color: #e65100; border-radius: var(--radius-full); }

.schedule-card__detail {
  font-size: var(--text-xs); color: var(--gray-500);
  margin-top: var(--space-3); padding-top: var(--space-2);
  border-top: 1px dashed var(--gray-200);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .tabs--premium { width: 100%; display: flex; }
  .tabs--premium .tab-btn { flex: 1; padding: var(--space-2) var(--space-3); font-size: var(--text-sm); }
  .schedule-card { flex-direction: column; }
  .schedule-card__time {
    min-width: auto; border-right: none;
    border-bottom: 1px solid var(--gray-100);
    padding: var(--space-3) var(--space-5);
    justify-content: flex-start;
  }
  .schedule-card__body { padding: var(--space-4) var(--space-5); }
}

/* ---- Download buttons ---- */
.download-area {
  display: flex; gap: var(--space-4); flex-wrap: wrap;
  margin-top: var(--space-6);
}

/* ---- Hotel cards ---- */
.hotel-card {
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-expo);
}
.hotel-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.hotel-card__img {
  height: 180px; background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-400); font-size: var(--text-sm);
}
.hotel-card__body { padding: var(--space-5); }
.hotel-card__name {
  font-size: var(--text-lg); font-weight: 700;
  margin-bottom: var(--space-2); color: var(--gray-800);
}
.hotel-card__price-wrap {
  display: flex; align-items: baseline; gap: var(--space-2);
  margin-bottom: var(--space-1);
}
.hotel-card__price-original {
  font-size: var(--text-sm); text-decoration: line-through;
  color: var(--gray-400); font-weight: 500;
}
.hotel-card__price {
  font-size: var(--text-xl); font-weight: 700;
  color: var(--color-primary);
}
.hotel-card__discount {
  font-size: var(--text-sm); color: var(--color-accent);
  font-weight: 600; margin-bottom: var(--space-2);
}
.hotel-card__details {
  font-size: var(--text-sm); color: var(--gray-600);
  margin-bottom: var(--space-4); line-height: 1.6;
}
.hotel-card__detail-item {
  display: flex; align-items: center; gap: var(--space-2);
  margin-bottom: 4px;
}
.hotel-card__detail-item .material-symbols-outlined {
  font-size: 16px; opacity: .7;
}
.hotel-card__tags {
  display: flex; gap: var(--space-2); flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.hotel-card__address {
  font-size: var(--text-sm); color: var(--gray-500);
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border: 1px dashed var(--gray-200);
  line-height: 1.5;
}
.hotel-card__note {
  font-size: var(--text-xs); color: var(--gray-400);
  margin-bottom: var(--space-4); font-style: italic;
}

/* RWD Collapsible logic */
.hotel-card__expand-indicator {
  display: none; /* Hidden on desktop */
  align-items: center; justify-content: center; gap: 4px;
  padding: 8px; margin-top: 12px;
  border-top: 1px solid var(--gray-100);
  color: var(--color-primary); font-size: 14px; font-weight: 600;
  cursor: pointer;
}

@media (max-width: 768px) {
  .hotel-card {
    cursor: pointer;
  }
  .hotel-card__collapsible {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
  }
  .hotel-card.is-expanded .hotel-card__collapsible {
    max-height: 1000px;
    opacity: 1;
    margin-top: 16px;
    pointer-events: auto;
  }
  .hotel-card__expand-indicator {
    display: flex;
  }
  .hotel-card.is-expanded .hotel-card__expand-indicator span:first-child {
    transform: rotate(180deg);
  }
  .hotel-card.is-expanded .hotel-card__expand-indicator span:last-child {
    content: "收合詳情"; /* JS can handle text or we just keep it simple */
  }
}

/* Sold Out State */
.hotel-card--full {
  position: relative;
  filter: grayscale(0.5);
  pointer-events: none;
}
.hotel-card__full-mask {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 10; color: #fff;
  flex-direction: column; gap: var(--space-2);
  backdrop-filter: blur(2px);
}
.hotel-card__full-badge {
  background: var(--admin-danger, #dc3545);
  color: #fff; padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
  font-weight: 800; font-size: var(--text-xl);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transform: rotate(-5deg);
}
.hotel-card__actions {
  display: flex; gap: var(--space-2);
}
.hotel-card__actions .btn { flex: 1; font-size: var(--text-sm); }

/* ---- Transport Tabs ---- */
.transport-panel { padding: var(--space-6) 0; }
.transport-info {
  background: #fff; border-radius: var(--radius-lg);
  padding: var(--space-6); box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-4);
}
.transport-info h4 { margin-bottom: var(--space-3); }
.transport-info p { line-height: 1.9; }

.shuttle-card {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: var(--space-4); align-items: center;
  padding: var(--space-4) var(--space-5);
  background: #fff; border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm); margin-bottom: var(--space-3);
}
.shuttle-card__time {
  font-weight: 700; color: var(--color-primary);
  font-size: var(--text-lg);
  min-width: 80px;
}
.shuttle-card__route { font-weight: 600; }
.shuttle-card__note { font-size: var(--text-xs); color: var(--gray-400); }
.shuttle-card__badge {
  padding: var(--space-1) var(--space-3);
  background: var(--color-warning);
  border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 700;
  color: var(--gray-800);
}
@media (max-width: 768px) {
  .shuttle-card {
    display: flex;
    flex-direction: column;   /* 改為直向堆疊 */
    align-items: flex-start;
    gap: var(--space-3);      /* 欄間距稍縮 */
  }

  .shuttle-card__time {
    min-width: unset;         /* 解除最小寬度限制 */
    font-size: var(--text-base);
  }

  .shuttle-card__route {
    word-break: break-word;   /* 安全換行 */
    line-height: 1.7;
  }

  .shuttle-card__badge {
    align-self: flex-start;   /* badge 靠左對齊 */
  }
}
/* ---- Activity cards ---- */
.activity-card {
  background: #fff; border-radius: var(--radius-xl);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-out-expo);
}
.activity-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.activity-card__header {
  padding: var(--space-6);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
}
.activity-card__header h3 { color: #fff; margin-bottom: var(--space-2); }
.activity-card__body { padding: var(--space-6); }
.activity-card__body p { line-height: 1.9; }

/* ---- Contact form ---- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
.contact-info-card {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  color: #fff;
}
.contact-info-card h3 { color: #fff; margin-bottom: var(--space-6); }
/* 橫式多欄聯絡資訊 */
.contact-info-card .contact-items-row {
  display: flex; flex-wrap: wrap; gap: var(--space-6);
}
.contact-info-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
  flex: 0 0 auto; min-width: 180px;
  margin-bottom: 0;
}
.contact-info-item .material-symbols-outlined { font-size: 24px; opacity: .8; }
.contact-info-item__label { font-weight: 700; margin-bottom: 2px; }
.contact-info-item__value { font-size: var(--text-sm); opacity: .85; }

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
  .page-hero__title { font-size: var(--text-2xl); }
}

/* ---- Submission topics ---- */
.topic-accordion {
  border: none; background: none;
}
.topic-accordion .accordion__item {
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}
.topic-accordion .accordion__header {
  padding: var(--space-5) var(--space-6);
  gap: var(--space-4);
}
.topic-accordion .accordion__header .material-symbols-outlined {
  font-size: 28px;
}
.topic-accordion .accordion__content ul {
  padding-left: var(--space-6);
  list-style: disc;
}
.topic-accordion .accordion__content ul li {
  margin-bottom: var(--space-2);
  line-height: 1.8;
  color: var(--gray-600);
}

/* ---- Registration steps ---- */
.reg-step {
  display: none;
}
.reg-step.active {
  display: block;
  animation: fadeIn .3s ease;
}
.reg-option-card {
  padding: var(--space-6);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-fast);
  text-align: center;
}
.reg-option-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.reg-option-card.selected {
  border-color: var(--color-primary);
  background: rgba(10,94,138,.03);
}
.reg-option-card .material-symbols-outlined {
  font-size: 48px; color: var(--color-primary);
  margin-bottom: var(--space-3);
}

/* News detail */
.news-detail {
  background: #fff; border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  box-shadow: var(--shadow-md);
}
.news-detail__back {
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: var(--gray-500); font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}
.news-detail__back:hover { color: var(--color-primary); }
.news-detail__header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--gray-100);
}
.news-detail__title {
  font-size: var(--text-2xl); margin-bottom: var(--space-2);
}
.news-detail__meta {
  display: flex; gap: var(--space-4); align-items: center;
  color: var(--gray-400); font-size: var(--text-sm);
}
.news-detail__content { line-height: 2; }
.news-detail__content p { margin-bottom: var(--space-4); }

/* ---- Organizers Grid (for About page) ---- */
.organizers-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-10);
  justify-content: center;
  align-items: flex-start;
  margin-top: var(--space-4);
}

.org-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  width: 160px;
  text-align: center;
}

.org-item__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100px;
  padding: var(--space-4);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal);
  text-decoration: none;
}

.org-item__logo:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.org-item__logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: all var(--duration-normal);
}

.org-item__logo:hover img {
  transform: scale(1.05);
}

.org-name {
  font-size: var(--text-xs);
  color: var(--gray-600);
  font-weight: 500;
  line-height: 1.5;
  display: block;
}

@media (max-width: 768px) {
  .organizers-grid {
    justify-content: center;
    gap: var(--space-6);
  }
  .org-item {
    width: 140px;
  }
  .org-item__logo {
    height: 80px;
    padding: var(--space-3);
  }
}

/* ================================================
   Registration Flow Enhancements
   ================================================ */

/* Option Card Extras */
.reg-option-card { position: relative; overflow: hidden; }
.reg-option-card__badge {
  position: absolute; top: 0; right: 0;
  background: var(--color-accent); color: #fff;
  font-size: 10px; padding: 2px 8px; font-weight: 700;
  border-bottom-left-radius: var(--radius-md);
}
.reg-option-card__date {
  font-size: 10px; color: var(--color-primary);
  font-weight: 700; margin-bottom: 4px;
}

/* Form Sections */
.form-section {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-100);
}
.form-section-title {
  font-size: var(--text-lg); font-weight: 700;
  color: var(--color-primary); margin-bottom: var(--space-4);
  display: flex; align-items: center; gap: 8px;
}
.form-section-title::before {
  content: ""; width: 4px; height: 18px;
  background: var(--color-primary); border-radius: 2px;
}

/* Topic Selector */
.topic-selector {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: var(--space-3); margin-top: var(--space-2);
}
.topic-btn {
  padding: var(--space-3); border: 2px solid var(--gray-200);
  border-radius: var(--radius-md); font-size: var(--text-xs);
  font-weight: 600; text-align: center; cursor: pointer;
  transition: all var(--duration-fast);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.topic-btn span { font-size: 20px; }
.topic-btn:hover { border-color: var(--color-primary); background: var(--gray-50); }
.topic-btn.active {
  border-color: currentColor; background: rgba(0,0,0,0.03);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.topic-btn--1 { color: #0077b6; }
.topic-btn--2 { color: #55a630; }
.topic-btn--3 { color: #e67e22; }
.topic-btn--4 { color: #8e44ad; }
.topic-btn--5 { color: #c0392b; }

.topic-detail-drawer {
  background: var(--gray-50); border-radius: var(--radius-md);
  margin-top: var(--space-3); padding: 0;
  max-height: 0; overflow: hidden;
  transition: all 0.3s ease;
}
.topic-detail-drawer.open { padding: var(--space-4); max-height: 200px; border: 1px solid var(--gray-200); }
.topic-detail-drawer p { font-size: var(--text-sm); line-height: 1.6; margin: 0; color: var(--gray-600); }

/* File Upload */
.file-upload-zone {
  border: 2px dashed var(--gray-300); border-radius: var(--radius-lg);
  padding: var(--space-6); text-align: center;
  cursor: pointer; transition: all var(--duration-normal);
  background: var(--gray-50);
}
.file-upload-zone:hover { border-color: var(--color-primary); background: #fff; }
.file-upload-zone .material-symbols-outlined { font-size: 40px; color: var(--gray-400); margin-bottom: 8px; }
.file-upload-zone p { font-size: var(--text-sm); margin-bottom: 4px; font-weight: 500; }
.file-upload-zone small { color: var(--gray-400); font-size: 11px; }

.file-preview { margin-top: var(--space-2); display: flex; align-items: center; gap: 8px; }
.file-preview__item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; background: #eef7fd; border-radius: var(--radius-md);
  font-size: var(--text-xs); color: var(--color-primary);
  max-width: 100%;
}
.file-preview__name {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 240px;
}
.file-preview__remove {
  flex-shrink: 0;
  background: none; border: none; cursor: pointer;
  color: var(--gray-400); padding: 2px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
  line-height: 1;
}
.file-preview__remove:hover { color: var(--color-danger, #dc3545); background: rgba(220,53,69,0.08); }
.file-preview__remove .material-symbols-outlined { font-size: 16px; }

.file-preview-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--space-2); margin-top: var(--space-3);
}
.file-preview-img-wrap {
  position: relative; width: 80px; height: 80px;
}
.file-preview-img-wrap:hover .file-preview-img__remove { opacity: 1; }
.file-preview-img {
  width: 80px; height: 80px; border-radius: var(--radius-md);
  object-fit: cover; border: 1px solid var(--gray-200);
  display: block;
}
.file-preview-img__remove {
  position: absolute; top: -6px; right: -6px;
  width: 20px; height: 20px;
  background: var(--color-danger, #dc3545); color: #fff;
  border: none; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-fast);
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
  padding: 0;
}
.file-preview-img__remove .material-symbols-outlined { font-size: 13px; }

/* Success Page Credentials */
.success-icon-wrap {
  width: 100px; height: 100px; background: rgba(85,166,48,0.1);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-4);
}
.success-icon-wrap .material-symbols-outlined { font-size: 60px; color: #55a630; }

.qr-container {
  margin: var(--space-8) auto; padding: var(--space-6);
  background: #fff; border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl); box-shadow: var(--shadow-sm);
  max-width: 280px;
}
#qrcode-canvas-wrap {
  padding: var(--space-2); background: #fff;
  display: flex; justify-content: center; align-items: center;
}
#qrcode-canvas { width: 180px !important; height: 180px !important; }
.qr-id {
  margin-top: var(--space-4); font-family: monospace;
  font-size: var(--text-sm); color: var(--gray-500);
}

.wallet-actions {
  display: flex; gap: var(--space-4); justify-content: center;
}
.btn-wallet {
  background: none; border: none; padding: 0; cursor: pointer;
  transition: transform 0.2s;
}
.btn-wallet:hover { transform: scale(1.05); }
.btn-wallet img { height: 40px; }

/* Modal Hint */
.modal__hint {
  font-size: 13px; color: var(--color-primary);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { opacity: 0.5; }
  50% { opacity: 1; }
  100% { opacity: 0.5; }
}

@media (max-width: 480px) {
  .topic-selector { grid-template-columns: repeat(2, 1fr); }
}

/* --- Modals for Registration --- */
.modal {
  position: fixed; inset: 0; z-index: 1000;
  display: none; align-items: center; justify-content: center;
  padding: var(--space-4);
}
.modal.open { display: flex; }
.modal__overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
}
.modal__card {
  position: relative; background: #fff; border-radius: var(--radius-xl);
  width: 100%; max-width: 700px; max-height: 85vh;
  box-shadow: var(--shadow-xl); display: flex; flex-direction: column;
  overflow: hidden;
  animation: modalSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal__header {
  padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
}
.modal__header h3 { margin: 0; font-size: var(--text-xl); color: var(--color-primary-dark); }
.modal__close {
  background: none; border: none; font-size: 28px; cursor: pointer; color: var(--gray-400);
  line-height: 1;
}
.modal__close:hover { color: var(--color-danger); }
.modal__body {
  padding: var(--space-6); overflow-y: auto; flex: 1;
  line-height: 1.8; color: var(--gray-700);
}
.modal__body h5 { color: var(--color-primary); margin: var(--space-4) 0 var(--space-2); }
.modal__footer {
  padding: var(--space-4) var(--space-6); border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
  display: flex; align-items: center; justify-content: flex-end; gap: var(--space-3);
  flex-wrap: wrap;
}

/* ================================================
   P3-05：步驟進度指示器
   ================================================ */
.step-prog {
  display: flex;
  align-items: center;
  gap: 0;
  margin: var(--space-4) 0 var(--space-6);
  overflow-x: auto;
  scrollbar-width: none;
}
.step-prog::-webkit-scrollbar { display: none; }

.step-prog__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 60px;
  position: relative;
}

.step-prog__dot {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-400);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: var(--text-xs);
  position: relative; z-index: 1;
  transition: all var(--duration-normal) var(--ease-out-expo);
}
.step-prog__item.active .step-prog__dot {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 0 4px rgba(10,94,138,.2);
}
.step-prog__item.completed .step-prog__dot {
  background: #55a630;
  color: #fff;
}

.step-prog__label {
  font-size: 10px;
  margin-top: 4px;
  color: var(--gray-400);
  text-align: center;
  white-space: nowrap;
}
.step-prog__item.active .step-prog__label { color: var(--color-primary); font-weight: 700; }
.step-prog__item.completed .step-prog__label { color: #55a630; }

.step-prog__line {
  flex: 1;
  height: 2px;
  background: var(--gray-200);
  margin-top: -20px; /* align with dot center */
  position: relative;
  z-index: 0;
}

/* P3-01：nav toggle 最小點擊區域 44×44px */
.navbar__toggle {
  min-width: 44px !important;
  min-height: 44px !important;
}

/* P3-04：議題卡片第 5 顆手機版置中 */
@media (max-width: 480px) {
  .topic-selector .topic-btn:nth-child(5) {
    grid-column: 1 / -1;
    max-width: 160px;
    margin: 0 auto;
  }
}

/* toast 動畫輔助 */
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}