/* base.css — 固定版型結構
   所有國家主題共用這份檔案，切換國家只需要切換 theme-*.css，
   這裡完全不含任何顏色數值，顏色一律吃 CSS variables。 */

:root {
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.09), 0 2px 6px rgba(0, 0, 0, 0.05);
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: var(--font-body, sans-serif);
  background-color: var(--color-bg, #fafafa);
  background-image: var(--pattern-bg, none);
  background-repeat: repeat;
  color: var(--color-text, #222);
  line-height: 1.7;
  letter-spacing: 0.01em;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* ---- 表單 ---- */
.planner-form {
  background: var(--color-surface, #fff);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--color-border, #eee);
  position: relative;
  overflow: hidden;
}

.planner-form::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary, #333), var(--color-accent, #999));
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group:last-of-type {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary, #333);
  font-family: var(--font-heading, inherit);
  letter-spacing: 0.03em;
}

.form-group select,
.form-group input[type="number"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border, #ccc);
  font-size: 1rem;
  font-family: inherit;
  background-color: var(--color-bg, #fafafa);
  color: var(--color-text, #222);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group select:focus,
.form-group input[type="number"]:focus {
  outline: none;
  border-color: var(--color-primary, #333);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary, #333) 15%, transparent);
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.checkbox-group label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: normal;
  font-family: inherit;
  background: var(--color-bg, #f5f5f5);
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid var(--color-border, #ddd);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.checkbox-group label:hover {
  border-color: var(--color-primary, #333);
  transform: translateY(-1px);
}

.checkbox-group label:has(input:checked) {
  background: var(--color-primary, #333);
  border-color: var(--color-primary, #333);
  color: var(--color-on-primary, #fff);
}

.checkbox-group input {
  accent-color: var(--color-primary, #333);
}

.submit-btn {
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary, #333);
  color: var(--color-on-primary, #fff);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-heading, inherit);
  letter-spacing: 0.05em;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--color-primary, #333) 35%, transparent);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.submit-btn:hover:not(:disabled) {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--color-primary, #333) 45%, transparent);
}

/* ---- 錯誤/狀態訊息 ---- */
.status-message {
  text-align: center;
  padding: var(--spacing-md);
  color: var(--color-secondary, #666);
  font-size: 0.95rem;
}

.status-message.error {
  color: #b3261e;
}

/* ---- 行程結果 ---- */
#itinerary-section {
  animation: fade-in-up 400ms ease;
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.day-panel {
  display: none;
}

.day-panel.active {
  display: block;
  animation: fade-in-up 300ms ease;
}

.day-panel {
  background: var(--color-surface, #fff);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  border: 1px solid var(--color-border, #eee);
}

.day-header {
  background: linear-gradient(120deg, var(--color-secondary, #555), color-mix(in srgb, var(--color-secondary, #555) 80%, black));
  color: var(--color-on-primary, #fff);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
}

.day-number {
  font-family: var(--font-heading, serif);
  font-size: 1.15rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.day-theme {
  margin: 0;
  font-size: 1rem;
  font-weight: 400;
  opacity: 0.95;
}

.timeline {
  padding: var(--spacing-lg);
}

.stop {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  border-left: 3px solid var(--color-accent, #ccc);
  padding-left: var(--spacing-md);
  margin-left: 4px;
  position: relative;
  transition: padding-left var(--transition);
}

.stop:not(:last-child) {
  border-image: linear-gradient(to bottom, var(--color-accent, #ccc), color-mix(in srgb, var(--color-accent, #ccc) 40%, transparent)) 1 100%;
}

.stop::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 14px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background-color: var(--color-accent, #ccc);
  border: 2px solid var(--color-surface, #fff);
  box-shadow: 0 0 0 1px var(--color-border, #ddd);
}

.stop-time {
  font-family: var(--font-heading, serif);
  font-size: 0.85rem;
  color: var(--color-secondary, #666);
  white-space: nowrap;
  padding-top: 2px;
}

.stop-content h4 {
  margin: 0 0 6px;
  color: var(--color-primary, #333);
  font-size: 1.05rem;
}

.stop-transport,
.stop-note {
  margin: 3px 0;
  font-size: 0.9rem;
  color: var(--color-text, #444);
}

.stop-transport {
  opacity: 0.7;
}

.stop-icon {
  margin-right: 4px;
}

/* ---- 行程工具列（摘要 + 重新規劃按鈕） ---- */
.itinerary-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.trip-summary h2 {
  margin: 0;
  font-family: var(--font-heading, serif);
  color: var(--color-primary, #333);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}

.cache-badge {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--color-secondary, #666);
  background: var(--color-bg, #f0f0f0);
  padding: 3px 12px;
  border-radius: 12px;
  border: 1px solid var(--color-border, #eee);
}

.replan-btn {
  border: 1px solid var(--color-primary, #333);
  background: transparent;
  color: var(--color-primary, #333);
  padding: 9px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: inherit;
  white-space: nowrap;
  transition: all var(--transition);
}

.replan-btn:hover {
  background: var(--color-primary, #333);
  color: var(--color-on-primary, #fff);
  transform: translateY(-1px);
}

/* ---- 天數導覽列 ---- */
.day-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
  padding-bottom: 4px;
}

.day-tab {
  flex: 0 0 auto;
  padding: 9px 22px;
  border-radius: 20px;
  border: 1px solid var(--color-border, #ddd);
  background: var(--color-surface, #fff);
  color: var(--color-text, #333);
  font-family: var(--font-heading, inherit);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.day-tab:hover {
  border-color: var(--color-primary, #333);
  transform: translateY(-1px);
}

.day-tab.active {
  background: var(--color-primary, #333);
  border-color: var(--color-primary, #333);
  color: var(--color-on-primary, #fff);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--color-primary, #333) 35%, transparent);
}

/* ---- 景點地圖收合區 ---- */
.spot-map-toggle {
  margin-top: 10px;
  border: 1px solid var(--color-border, #ddd);
  background: var(--color-bg, #f5f5f5);
  color: var(--color-secondary, #555);
  padding: 5px 14px;
  border-radius: 14px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition);
}

.spot-map-toggle:hover {
  border-color: var(--color-primary, #333);
  color: var(--color-primary, #333);
}

.spot-map-wrap {
  margin-top: 10px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border, #ddd);
  box-shadow: var(--shadow-sm);
}

.spot-map-wrap.hidden {
  display: none;
}

.spot-map-wrap iframe {
  width: 100%;
  height: 220px;
  border: 0;
  display: block;
}

/* ---- Hero Banner（城市代表圖片） ---- */
.hero-banner {
  position: relative;
  height: 220px;
  border-radius: var(--radius);
  background-size: cover;
  background-position: center;
  margin-bottom: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-md) var(--spacing-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-city {
  font-family: var(--font-heading, serif);
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-credit {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.7rem;
  margin-top: 4px;
}

/* ---- 工具列動作按鈕群組 ---- */
.toolbar-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.share-btn {
  border: 1px solid var(--color-secondary, #555);
  background: transparent;
  color: var(--color-secondary, #555);
  padding: 9px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: inherit;
  white-space: nowrap;
  transition: all var(--transition);
}

.share-btn:hover {
  background: var(--color-secondary, #555);
  color: var(--color-on-primary, #fff);
  transform: translateY(-1px);
}

/* ---- 骨架屏（loading 時取代真實內容） ---- */
.skeleton {
  background: linear-gradient(
    100deg,
    var(--color-border, #e0e0e0) 30%,
    color-mix(in srgb, var(--color-border, #e0e0e0) 40%, white) 50%,
    var(--color-border, #e0e0e0) 70%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: 6px;
}

@keyframes skeleton-shimmer {
  0% { background-position: 150% 0; }
  100% { background-position: -50% 0; }
}

.skeleton-tab {
  width: 70px;
  height: 34px;
  border-radius: 20px;
  flex: 0 0 auto;
}

.skeleton-header {
  height: 56px;
  border-radius: 0;
}

.skeleton-time {
  width: 70px;
  height: 14px;
  margin-top: 4px;
}

.skeleton-title {
  width: 60%;
  height: 18px;
  margin-bottom: 8px;
}

.skeleton-line {
  width: 90%;
  height: 12px;
  margin-bottom: 6px;
}

.skeleton-line.short {
  width: 50%;
}

/* ---- 行動裝置（手機）優化 ---- */
@media (max-width: 600px) {
  .container {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .planner-form {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .hero-banner {
    height: 160px;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .hero-city {
    font-size: 1.4rem;
  }

  .itinerary-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .toolbar-actions {
    width: 100%;
  }

  .replan-btn,
  .share-btn {
    flex: 1;
    text-align: center;
  }

  .day-tab {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .stop {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }

  .stop-time {
    padding-top: 0;
  }

  .timeline {
    padding: var(--spacing-md);
  }

  .day-header {
    padding: var(--spacing-md);
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .checkbox-group label {
    font-size: 0.85rem;
    padding: 6px 12px;
  }
}

/* ---- 列印樣式 ---- */
@media print {
  body {
    background: none !important;
  }

  #form-section,
  .replan-btn,
  .share-btn,
  .day-tabs,
  .spot-map-toggle,
  .spot-map-wrap,
  .cache-badge,
  .hero-credit {
    display: none !important;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  .hero-banner {
    height: 120px;
    box-shadow: none;
  }

  .day-panel {
    display: block !important;
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
    margin-bottom: var(--spacing-md);
  }

  .spot-map-wrap {
    display: none !important;
  }
}

/* ---- 目的地國家卡片 ---- */
.country-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.country-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-md) var(--spacing-sm);
  border: 2px solid var(--color-border, #ddd);
  border-radius: var(--radius-sm);
  background: var(--color-bg, #fafafa);
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}

.country-card:hover {
  border-color: var(--color-accent, #999);
  transform: translateY(-2px);
}

.country-card.selected {
  border-color: var(--color-primary, #333);
  background: var(--color-surface, #fff);
  box-shadow: var(--shadow);
}

.country-flag {
  font-size: 1.8rem;
  line-height: 1;
}

.country-name {
  font-family: var(--font-heading, serif);
  font-weight: 700;
  color: var(--color-primary, #333);
}

.country-tagline {
  font-size: 0.78rem;
  color: var(--color-secondary, #666);
}

/* ---- 城市 chip ---- */
.city-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.city-chip {
  padding: 10px 20px;
  border-radius: 20px;
  border: 1px solid var(--color-border, #ddd);
  background: var(--color-bg, #f5f5f5);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.city-chip:hover {
  border-color: var(--color-primary, #333);
}

.city-chip.selected {
  background: var(--color-primary, #333);
  border-color: var(--color-primary, #333);
  color: var(--color-on-primary, #fff);
}

/* ---- 天數 stepper ---- */
.stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border, #ccc);
  border-radius: 999px;
  overflow: hidden;
}

.stepper-btn {
  width: 44px;
  height: 44px;
  border: none;
  background: var(--color-bg, #f5f5f5);
  color: var(--color-primary, #333);
  font-size: 1.3rem;
  cursor: pointer;
  transition: background var(--transition);
}

.stepper-btn:hover {
  background: var(--color-border, #e0e0e0);
}

.stepper input#days {
  width: 56px;
  text-align: center;
  border: none;
  background: var(--color-surface, #fff);
  font-size: 1.1rem;
  font-family: var(--font-heading, inherit);
  font-weight: 700;
  color: var(--color-text, #222);
  padding: 0;
  height: 44px;
}

.stepper input#days:focus {
  outline: none;
}

/* ---- 景點簡介 ---- */
.stop-intro {
  margin: 2px 0 6px;
  font-size: 0.88rem;
  color: var(--color-text, #444);
  opacity: 0.85;
  line-height: 1.5;
}

/* ---- 住宿 / 餐廳推薦卡 ---- */
.reco-section {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.reco-heading {
  margin: 0 0 var(--spacing-sm);
  font-family: var(--font-heading, serif);
  color: var(--color-primary, #333);
  font-size: 1rem;
}

.reco-card {
  background: var(--color-bg, #f7f7f7);
  border: 1px solid var(--color-border, #eee);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.reco-name {
  margin: 0 0 2px;
  font-weight: 700;
  color: var(--color-text, #222);
}

.reco-meta {
  margin: 0 0 4px;
  font-size: 0.82rem;
  color: var(--color-secondary, #666);
}

.reco-desc {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text, #444);
  opacity: 0.85;
}

/* ---- 實用資訊分頁 ---- */
.practical-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
}

.practical-card h4 {
  margin: 0 0 var(--spacing-sm);
  font-family: var(--font-heading, serif);
  color: var(--color-primary, #333);
  font-size: 0.95rem;
}

.practical-card ul {
  margin: 0;
  padding-left: 1.1em;
}

.practical-card li {
  font-size: 0.85rem;
  color: var(--color-text, #444);
  margin-bottom: 6px;
  line-height: 1.5;
}

.practical-disclaimer {
  margin: 0 var(--spacing-lg) var(--spacing-lg);
  font-size: 0.78rem;
  color: var(--color-secondary, #777);
  border-top: 1px solid var(--color-border, #eee);
  padding-top: var(--spacing-sm);
}

@media (max-width: 600px) {
  .country-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
  }

  .practical-grid {
    grid-template-columns: 1fr;
    padding: var(--spacing-md);
  }

  .reco-section {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }
}