/* ========================================================
   Layout & Global Navigation Styles
   ======================================================== */
/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem;
}

/* Hero Header */
header.hero {
  text-align: center;
  padding: 2.2rem 1rem 2.5rem;
  position: relative;
}

/* Hero Top Utility Bar (Centered Badge) */
.hero-top-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.4rem;
}

.badge-hero {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--badge-hero-bg);
  color: var(--badge-hero-text);
  border: 1px solid var(--badge-hero-border);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
  margin-bottom: 0;
}

/* 網頁最右上角主題切換按鈕 (非常駐，隨頁首滾動自然移出視窗) */
.theme-switch-wrapper {
  position: absolute;
  top: 18px;
  right: 24px;
  z-index: 100;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

@media (max-width: 1199px) {
  header.hero {
    padding-top: 4.2rem;
  }
  .theme-switch-wrapper {
    position: absolute;
    top: 52px;
    right: 16px;
    z-index: 100;
    gap: 0.4rem;
  }
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  background: var(--quick-nav-pill-bg);
  border: 1px solid var(--border-color);
  padding: 0.32rem 0.65rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-heading);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  user-select: none;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1;
}

.theme-toggle-btn:hover {
  border-color: var(--border-highlight);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
  color: var(--text-accent);
}

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

.theme-toggle-btn .theme-icon {
  font-size: 0.95rem;
  line-height: 1;
}

.theme-toggle-btn .theme-text {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-heading);
}

h1.hero-title {
  font-family: 'Outfit', 'Noto Sans TC', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.25;
  background: var(--hero-title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
  transition: background 0.3s ease;
}

p.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Key highlights grid */
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
  margin-bottom: 3rem;
}

.highlight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  backdrop-filter: blur(12px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.highlight-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.highlight-card .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.highlight-card .value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading);
}

.highlight-card .sub {
  font-size: 0.85rem;
  color: var(--text-accent);
}

/* Section Header */
.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-heading);
}

.section-title span.icon {
  font-size: 1.8rem;
}

/* Navigation Tabs & Collapsible Container */
.phase-nav-container {
  margin: 1.5rem 0 2rem;
  position: relative;
}

.phase-nav-toggle-bar {
  display: none; /* 桌面版隱藏，直接展示 5 等分網格 */
}

.phase-nav {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  box-shadow: var(--shadow-soft);
}

.phase-btn {
  background: var(--card-sub-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: inherit;
  padding: 0.65rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  text-align: center;
}

.phase-btn .btn-title {
  font-size: 0.92rem;
  font-weight: 700;
  white-space: nowrap;
  color: var(--text-heading);
  transition: var(--transition);
}

.phase-btn .btn-sub {
  font-size: 0.76rem;
  font-family: 'Outfit', sans-serif;
  color: var(--text-muted);
  white-space: nowrap;
  transition: var(--transition);
}

.phase-btn:hover {
  color: var(--text-heading);
  background: var(--border-color);
  border-color: var(--border-highlight);
}

.phase-btn:hover .btn-title {
  color: var(--text-heading);
}

.phase-btn.active {
  background: var(--accent-gradient);
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(255, 126, 95, 0.4);
}

.phase-btn.active .btn-title {
  color: #000;
  font-weight: 800;
}

.phase-btn.active .btn-sub {
  color: rgba(0, 0, 0, 0.75);
  font-weight: 600;
}

@keyframes fadeInNavMenu {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 平板與手機窄螢幕 (< 960px)：隨選折疊式選單（預設收合不佔版面，展開時保持規範三 1 頂層全寬 + 2x2 對稱網格） */
@media (max-width: 960px) {
  .phase-nav-container {
    margin: 1rem 0 1.5rem;
  }

  .phase-nav-toggle-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.9rem;
    cursor: pointer;
    user-select: none;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
  }

  .phase-nav-toggle-bar:hover {
    border-color: var(--border-highlight);
    background: var(--card-sub-bg);
  }

  .phase-toggle-info {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    overflow: hidden;
  }

  .phase-toggle-label {
    color: var(--text-muted);
    font-size: 0.76rem;
    white-space: nowrap;
  }

  .phase-current-title {
    color: var(--text-heading);
    font-weight: 700;
    font-size: 0.84rem;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
  }

  .phase-toggle-action {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--accent);
    font-size: 0.76rem;
    font-weight: 700;
    flex-shrink: 0;
  }

  .phase-toggle-icon {
    display: inline-block;
    transition: transform 0.25s ease;
    font-size: 0.85rem;
    line-height: 1;
  }

  /* 預設收合 */
  .phase-nav {
    display: none;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.45rem;
    margin-top: 0.5rem;
    padding: 0.5rem;
  }

  /* 點擊展開時顯示對稱網格 */
  .phase-nav-container.is-open .phase-nav {
    display: grid;
    animation: fadeInNavMenu 0.22s ease-out;
  }

  .phase-nav-container.is-open .phase-toggle-icon {
    transform: rotate(180deg);
  }

  .phase-btn:first-child {
    grid-column: span 2;
  }
}

/* ========================================================
   Global Quick Navigation & Daily Itinerary Navigator
   ======================================================== */
html {
  scroll-behavior: smooth;
}

#flights, #hotels, #checklist, #master-map-section, .day-card {
  scroll-margin-top: 56px;
}

#itinerary-feed-anchor {
  scroll-margin-top: 56px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Common Global Quick Nav Base Styles */
.global-quick-nav {
  z-index: 1000;
  pointer-events: auto;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.quick-nav-pill {
  background: var(--quick-nav-pill-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--quick-nav-pill-border);
  box-shadow: var(--quick-nav-pill-shadow);
  transition: var(--transition);
}

.quick-nav-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  transition: var(--transition);
}

.quick-nav-btn:hover {
  color: var(--text-heading);
  background: rgba(125, 125, 125, 0.12);
  border-color: var(--border-color);
}

.quick-nav-btn.active {
  background: var(--accent-gradient);
  color: #fff !important;
  font-weight: 800;
  box-shadow: 0 2px 10px rgba(255, 126, 95, 0.4);
}

.quick-nav-btn .nav-icon {
  font-size: 1rem;
  display: inline-block;
  line-height: 1;
}

/* 桌面版寬螢幕 (>= 1200px)：右側垂直電梯軌道，完全不佔用中央 1200px 內容與上方空間 */
@media (min-width: 1200px) {
  #flights, #hotels, #checklist, #master-map-section, .day-card {
    scroll-margin-top: 28px;
  }

  #itinerary-feed-anchor {
    scroll-margin-top: 36px;
  }

  .global-quick-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }

  .quick-nav-pill {
    display: flex;
    flex-direction: column;
    gap: 5px;
    border-radius: 20px;
    padding: 8px 6px;
  }

  .quick-nav-btn {
    width: 100%;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 0.42rem 0.75rem;
    border-radius: 12px;
    gap: 0.45rem;
    text-align: left;
  }

  .quick-nav-btn.btn-top {
    justify-content: center;
    padding: 0.35rem 0.5rem;
  }

  .nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 3px 6px;
  }
}

.nav-short {
  display: none;
}

/* 平板與手機窄螢幕 (< 1200px)：頂部常駐精巧毛玻璃導覽膠囊，全站隨時可點 */
@media (max-width: 1199px) {
  .nav-full {
    display: none;
  }
  .nav-short {
    display: inline;
  }

  .global-quick-nav {
    position: fixed;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    max-width: 96vw;
    width: auto;
    z-index: 1000;
  }

  .quick-nav-pill {
    display: flex;
    align-items: center;
    gap: 2px;
    border-radius: 40px;
    padding: 3px 5px;
    max-width: 95vw;
    justify-content: center;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.85), 0 0 16px rgba(255, 126, 95, 0.22);
  }

  .quick-nav-btn {
    font-size: 0.74rem;
    font-weight: 700;
    padding: 0.28rem 0.38rem;
    border-radius: 20px;
    gap: 0.18rem;
    color: var(--text-main);
  }

  .quick-nav-btn.btn-top {
    padding: 0.28rem 0.32rem;
  }

  .nav-divider {
    width: 1px;
    height: 14px;
    background: var(--border-color);
    margin: 0 1px;
  }
}

/* 每日行程天數快速切換滑軌 (僅在進入每日行程區時浮現) */
.day-quick-nav {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%) translateY(35px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 1000;
  transition: opacity 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  max-width: min(94vw, 760px);
  width: 100%;
}

.day-quick-nav.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.day-nav-wrapper {
  background: var(--quick-nav-pill-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--quick-nav-pill-border);
  border-radius: 40px;
  padding: 5px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--quick-nav-pill-shadow);
}

.day-step-btn {
  background: var(--card-sub-bg);
  border: 1px solid var(--border-color);
  color: var(--text-heading);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

.day-step-btn:hover {
  background: var(--border-highlight);
  border-color: var(--text-accent);
  color: #fff;
  transform: scale(1.05);
}

.day-step-btn.top {
  font-size: 0.95rem;
}

.day-chips-track {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  padding: 2px 4px;
  flex: 1;
}

.day-chips-track::-webkit-scrollbar {
  display: none;
}

.day-chip {
  background: var(--card-sub-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 12px;
  padding: 0.32rem 0.55rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-width: 48px;
  transition: var(--transition);
  flex-shrink: 0;
}

.day-chip:hover {
  background: var(--border-highlight);
  color: #fff;
  border-color: var(--text-accent);
}

.day-chip.active {
  background: var(--badge-hero-bg);
  border-color: var(--border-highlight);
  color: var(--text-accent);
  box-shadow: 0 0 12px var(--border-highlight);
}

.chip-keyword {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.1;
  letter-spacing: 0.04em;
}

.day-chip.active .chip-keyword {
  color: var(--text-accent);
  font-weight: 800;
}

.chip-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  line-height: 1;
}

.chip-date {
  font-family: 'Outfit', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.day-chip.active .chip-date {
  color: var(--text-accent);
  font-weight: 800;
}

/* 階段主題色彩小圓點 */
.phase-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.phase-dot.p1 { background: #ff7e5f; box-shadow: 0 0 6px #ff7e5f; }
.phase-dot.p2 { background: #ba68c8; box-shadow: 0 0 6px #ba68c8; }
.phase-dot.p3 { background: #81c784; box-shadow: 0 0 6px #81c784; }
.phase-dot.p4 { background: #4dd0e1; box-shadow: 0 0 6px #4dd0e1; }

/* 全螢幕模式隱藏浮動導覽列與主題切換鈕 */
.fullscreen-map ~ .global-quick-nav,
.fullscreen-map ~ .day-quick-nav,
.fullscreen-map ~ .theme-switch-wrapper,
body.has-fullscreen-map .global-quick-nav,
body.has-fullscreen-map .day-quick-nav,
body.has-fullscreen-map .theme-switch-wrapper {
  display: none !important;
}