/* ==========================================================================
   樂遊人加拿大旅遊群島 (Leyo Travel 3D Archipelago)
   視覺風格：雲海仙境 (Cloud Wonderland)｜全淺色高對比介面規範
   ========================================================================== */

:root,
html[data-theme="sky"] {
  --bg: #7cb9e8;
  --bg-grad-top: #5ea3dc;
  --bg-grad-bottom: #a3cef0;
  --surface: #edf6ff;
  --surface-glass: rgba(235, 246, 255, 0.94);
  --surface-soft: #dcecfc;
  --ink: #0d2137;
  --muted: #2e4d6b;
  --line: #8abbe0;
  --primary: #1d5da0;
  --primary-hover: #14467c;
  --primary-soft: #cde4fa;
  --accent: #f0a828;
  --accent-ink: #4a2f00;
  --accent-soft: #fff2d6;
  --success: #157350;
  --success-soft: #d6f5e8;
  --shadow-sm: 0 3px 10px rgba(12, 32, 56, 0.14);
  --shadow-md: 0 10px 26px rgba(12, 32, 56, 0.18);
  --shadow-lg: 0 18px 42px rgba(12, 32, 56, 0.24);
  --font-sans: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", sans-serif;
  --font-display: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

html[data-theme="cloud"] {
  --bg: #68a8de;
  --bg-grad-top: #4b90cc;
  --bg-grad-bottom: #8fc1ea;
  --surface: #ebf5ff;
  --surface-glass: rgba(232, 244, 255, 0.94);
  --surface-soft: #d6eafc;
  --ink: #0c1f35;
  --muted: #294969;
  --line: #7eb2dc;
  --primary: #1a5696;
  --primary-hover: #113f73;
  --primary-soft: #c5e0f9;
  --accent: #f0a828;
  --accent-ink: #4a2f00;
  --accent-soft: #fff1d2;
}

html[data-theme="aurora"] {
  --bg: #5293ce;
  --bg-grad-top: #397bb8;
  --bg-grad-bottom: #7db4e4;
  --surface: #e8f3ff;
  --surface-glass: rgba(228, 241, 255, 0.94);
  --surface-soft: #cfe5fb;
  --ink: #0a1c30;
  --muted: #254463;
  --line: #71a7d6;
  --primary: #164f8c;
  --primary-hover: #0e3969;
  --primary-soft: #bddbf8;
  --accent: #f2ae2e;
  --accent-ink: #472c00;
  --accent-soft: #ffefd0;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  z-index: 9999;
  background: var(--surface);
  color: var(--ink);
  padding: 10px 16px;
  border-radius: 8px;
  border: 2px solid var(--primary);
  font-weight: 700;
}

.skip-link:focus {
  top: 12px;
}

/* ==========================================================================
   Top Header Bar
   ========================================================================== */
.topbar {
  position: relative;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 16px;
  min-height: 68px;
  background: var(--surface-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.brand-wrap {
  display: flex;
  align-items: center;
  min-width: 0;
  flex: 1 1 auto;
}

.brand-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: none;
  padding: 4px 6px;
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  min-width: 0;
  transition: background 0.15s ease;
}

.brand-btn:hover,
.brand-btn:focus-visible {
  background: var(--primary-soft);
  outline: none;
}

.brand-fox-mini {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-text {
  min-width: 0;
}

.brand-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.brand-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-tagline {
  margin: 2px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toolbar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* Theme Switcher */
.theme-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  gap: 3px;
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 5px 11px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.theme-btn .swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--primary);
  flex-shrink: 0;
}

.theme-btn.active {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 4px rgba(21, 37, 56, 0.12);
  font-weight: 700;
}

.theme-btn:hover:not(.active) {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.6);
}

/* Tool Action Buttons */
.tool-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.tool-btn:hover,
.tool-btn:focus-visible {
  border-color: var(--primary);
  background: var(--primary-soft);
  outline: none;
}

.tool-btn[aria-pressed="true"] {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.tool-btn.accent-btn {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

.tool-btn.accent-btn:hover {
  background: var(--accent);
  color: #16263b;
}

.tool-btn.passport-btn {
  background: var(--primary-soft);
  border-color: #9ec2e8;
  color: var(--primary-hover);
}

.tool-btn.icon-only {
  min-width: 44px;
  padding: 6px;
  font-weight: 800;
  font-size: 1rem;
}

/* ==========================================================================
   Main Viewport & 3D Stage
   ========================================================================== */
.viewport {
  position: relative;
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-grad-top) 0%, var(--bg) 55%, var(--bg-grad-bottom) 100%);
}

.stage {
  position: relative;
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  overflow: hidden;
  touch-action: none;
  user-select: none;
}

#islandCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}

#islandCanvas:active {
  cursor: grabbing;
}

/* Floating 3D Island Labels */
.label-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 10;
}

.island-label {
  position: absolute;
  transform: translate(-50%, -100%);
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--surface-glass);
  color: var(--ink);
  border: 1.5px solid var(--primary);
  box-shadow: 0 4px 14px rgba(21, 37, 56, 0.15);
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.island-label:hover,
.island-label:focus-visible {
  transform: translate(-50%, -106%) scale(1.05);
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(44, 109, 181, 0.32);
  z-index: 25;
  outline: none;
}

.island-label.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(242, 179, 61, 0.45), 0 6px 18px rgba(21, 37, 56, 0.25);
  z-index: 24;
}

.island-label.center-label {
  background: var(--accent-soft);
  color: var(--ink);
  border: 2px solid var(--accent);
  font-size: 0.88rem;
  padding: 6px 14px;
}

.island-label.center-label:hover,
.island-label.center-label.active {
  background: var(--accent);
  color: #152538;
}

.island-label .num-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.73rem;
  font-weight: 800;
}

.island-label:hover .num-pill,
.island-label.active .num-pill {
  background: var(--accent);
  color: #152538;
}

.island-label .stamp-dot {
  color: var(--success);
  font-size: 0.82rem;
}

.island-label:hover .stamp-dot,
.island-label.active .stamp-dot {
  color: #a6f4c5;
}

/* Top Floating HUD (Quick Search & Yoyo Tip) */
.floating-hud-top {
  position: absolute;
  top: 14px;
  left: 16px;
  right: 16px;
  z-index: 20;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  pointer-events: none;
}

.quick-search-box {
  position: relative;
  pointer-events: auto;
  display: flex;
  align-items: center;
  width: 320px;
  max-width: 100%;
  background: var(--surface-glass);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  box-shadow: var(--shadow-sm);
}

.quick-search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(44, 109, 181, 0.18);
}

.search-icon {
  margin-right: 6px;
  font-size: 0.95rem;
}

#quickSearchInput {
  border: none;
  background: transparent;
  width: 100%;
  min-height: 34px;
  font-size: 0.86rem;
  color: var(--ink);
  outline: none;
}

.clear-search-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 4px 6px;
  font-size: 0.85rem;
}

.quick-search-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 340px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  z-index: 50;
}

.search-hit-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  transition: background 0.12s ease;
}

.search-hit-item:hover,
.search-hit-item:focus-visible {
  background: var(--primary-soft);
  outline: none;
}

.search-hit-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

.search-hit-snippet {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.yoyo-welcome-pill {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 460px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface-glass);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--accent);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
  font-size: 0.82rem;
  text-align: left;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.yoyo-welcome-pill:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  background: var(--accent-soft);
}

.yoyo-pill-avatar {
  font-size: 1.15rem;
  flex-shrink: 0;
}

/* Bottom Floating Island Dock */
.floating-hud-bottom {
  position: absolute;
  bottom: 12px;
  left: 16px;
  right: 16px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.island-dock {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--surface-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.island-dock::-webkit-scrollbar {
  display: none;
}

.dock-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: var(--surface-soft);
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
}

.dock-btn:hover,
.dock-btn:focus-visible {
  border-color: var(--primary);
  background: var(--primary-soft);
  outline: none;
}

.dock-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.dock-btn.center-dock {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--ink);
}

.dock-btn.center-dock.active {
  background: var(--accent);
  color: #152538;
}

.dock-num {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 6px;
  background: rgba(44, 109, 181, 0.14);
  color: var(--primary);
  font-size: 0.74rem;
  font-weight: 800;
}

.dock-btn.active .dock-num {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.stage-meta-bar {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--surface-glass);
  border: 1px solid var(--line);
  font-size: 0.76rem;
  color: var(--muted);
}

.official-mini-link {
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

/* WebGL Fallback Notice */
.webgl-fallback {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(180deg, var(--bg-grad-top), var(--bg));
}

.webgl-fallback[hidden] {
  display: none !important;
}

.fallback-card {
  max-width: 520px;
  background: var(--surface);
  border: 2px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Side Detail Panel (Island Inspector)
   ========================================================================== */
.detail-panel {
  position: relative;
  z-index: 35;
  width: 480px;
  max-width: 46vw;
  height: 100%;
  background: var(--surface);
  border-left: 1px solid var(--line);
  box-shadow: -8px 0 28px rgba(21, 37, 56, 0.1);
  display: flex;
  flex-direction: column;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.detail-panel[aria-hidden="true"] {
  display: none;
}

.panel-drag-handle {
  display: none;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-soft);
}

.panel-meta-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.panel-order-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 6px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.76rem;
  font-weight: 800;
}

.panel-group-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 6px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--accent-ink);
  font-size: 0.76rem;
  font-weight: 700;
}

.panel-stamp-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 6px;
  background: var(--success-soft);
  color: var(--success);
  font-size: 0.75rem;
  font-weight: 700;
}

.panel-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
}

.panel-landmark {
  margin: 6px 0 0;
  font-size: 0.83rem;
  color: var(--muted);
}

.panel-close-btn {
  min-width: 44px;
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
}

.panel-close-btn:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
}

/* Prominent CTA Strip inside Panel */
.panel-cta-strip {
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 8px;
}

.cta-card-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 10px 14px;
  min-height: 52px;
  border-radius: 12px;
  background: var(--primary);
  color: #ffffff !important;
  text-decoration: none !important;
  border: 1.5px solid var(--primary);
  box-shadow: 0 3px 10px rgba(44, 109, 181, 0.22);
  transition: transform 0.14s ease, background 0.14s ease;
}

.cta-card-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.cta-card-btn.secondary-cta {
  background: var(--accent-soft);
  color: var(--ink) !important;
  border-color: var(--accent);
  box-shadow: none;
}

.cta-card-btn.secondary-cta:hover {
  background: var(--accent);
}

.cta-btn-main {
  font-size: 0.9rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.cta-btn-sub {
  font-size: 0.74rem;
  opacity: 0.9;
  margin-top: 2px;
}

/* Panel Tabs */
.panel-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  background: var(--surface-soft);
  padding: 0 14px;
  gap: 4px;
  overflow-x: auto;
}

.panel-tab {
  min-height: 44px;
  padding: 8px 12px;
  border: none;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}

.panel-tab:hover {
  color: var(--ink);
}

.panel-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: var(--surface);
}

/* Panel Scrollable Content Body */
.panel-body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.info-card {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}

.info-card-title {
  margin: 0 0 6px;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.info-card-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink);
  line-height: 1.65;
}

.info-card-source {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--muted);
}

/* Tour Product Cards inside Panel */
.tours-section-title {
  margin: 6px 0 2px;
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--ink);
}

.tour-item-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  border-radius: 14px;
  background: var(--surface);
  border: 1.5px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease;
}

.tour-item-card:hover {
  border-color: var(--primary);
}

.tour-code-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.tour-code-pill {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--primary-soft);
  color: var(--primary);
}

.tour-item-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--ink);
}

.tour-item-desc {
  margin: 0;
  font-size: 0.83rem;
  color: var(--muted);
}

.tour-item-link {
  align-self: flex-start;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff !important;
  font-size: 0.83rem;
  font-weight: 700;
  text-decoration: none !important;
}

.tour-item-link:hover {
  background: var(--primary-hover);
}

/* Comparison Table inside Center Island */
.comparison-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.comp-row-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.comp-row-card:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.comp-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-weight: 800;
  color: var(--primary);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.comp-meta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  font-size: 0.82rem;
  color: var(--ink);
}

.comp-meta-grid span strong {
  color: var(--muted);
}

/* Panel Footer */
.panel-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
}

.nav-step-btn {
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.83rem;
  font-weight: 700;
  cursor: pointer;
}

.nav-step-btn:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

/* ==========================================================================
   Modals (Location List, Yoyo Guide, Exploration Passport, Help)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(21, 37, 56, 0.42);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop[hidden] {
  display: none !important;
}

.modal-dialog {
  width: 100%;
  max-height: 88vh;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-lg {
  max-width: 780px;
}

.modal-xl {
  max-width: 1040px;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-soft);
}

.modal-eyebrow {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 2px;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
}

.modal-close-btn {
  min-width: 44px;
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.modal-close-btn:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
}

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1 1 auto;
}

/* Location List Controls & Cards */
.list-controls-bar {
  padding: 12px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list-search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-soft);
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 6px 14px;
}

.list-search-wrap input {
  width: 100%;
  border: none;
  background: transparent;
  min-height: 34px;
  outline: none;
}

.category-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.chip-btn {
  min-height: 38px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.chip-btn.active,
.chip-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.list-island-card {
  background: var(--surface-soft);
  border: 1.5px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px;
  margin-bottom: 16px;
}

.list-island-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.list-island-title {
  margin: 4px 0;
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--ink);
}

.list-island-points {
  margin: 10px 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}

.list-island-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

/* Yoyo Guide Modal */
.guide-header-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.guide-intro-box {
  background: var(--accent-soft);
  border: 1.5px solid var(--accent);
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.guide-intro-box p {
  margin: 0;
}

.guide-search-form {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.guide-search-form input {
  flex: 1 1 auto;
  min-height: 46px;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1.5px solid var(--line);
  background: var(--surface-soft);
}

.guide-search-form input:focus {
  border-color: var(--primary);
  outline: none;
}

.primary-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 18px;
  border-radius: 10px;
  border: none;
  background: var(--primary);
  color: #ffffff !important;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none !important;
  white-space: nowrap;
}

.primary-cta-btn:hover {
  background: var(--primary-hover);
}

.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1.5px solid var(--primary);
  background: var(--surface);
  color: var(--primary) !important;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none !important;
  white-space: nowrap;
}

.secondary-btn:hover {
  background: var(--primary-soft);
}

.quick-questions-wrap {
  margin-bottom: 16px;
}

.quick-q-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 6px;
}

.quick-q-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.quick-q-chip {
  min-height: 36px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.quick-q-chip:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

.guide-answer-card {
  background: var(--surface-soft);
  border: 1.5px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.guide-answer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.guide-source-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  background: var(--surface);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.guide-source-btn:hover {
  background: var(--primary);
  color: #ffffff;
}

/* Exploration Passport Modal */
.passport-summary-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--surface-soft);
  border: 1.5px solid var(--line);
  border-radius: 16px;
  padding: 16px 20px;
  margin-bottom: 18px;
}

.passport-progress-info {
  flex: 1 1 320px;
}

.passport-progress-info h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
  color: var(--ink);
}

.passport-progress-info p {
  margin: 0 0 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.passport-bar-outer {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}

.passport-bar-inner {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.3s ease;
}

.passport-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}

.stamp-card {
  background: var(--surface-soft);
  border: 2px dashed var(--line);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  transition: all 0.15s ease;
}

.stamp-card.stamped {
  background: var(--surface);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-sm);
}

.stamp-seal {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: var(--surface);
  border: 2px dashed var(--line);
  color: var(--muted);
}

.stamp-card.stamped .stamp-seal {
  background: var(--accent-soft);
  border: 2px solid var(--accent);
  color: var(--accent-ink);
}

/* Help Modal */
.help-section {
  margin-bottom: 22px;
}

.help-section h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--primary);
}

.help-list {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}

.help-contact-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.source-links-list {
  margin: 10px 0 0;
  padding-left: 20px;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ==========================================================================
   Responsive Design (Tablet 768px & Mobile 375px)
   ========================================================================== */
@media (max-width: 1024px) {
  .site-tagline {
    display: none;
  }
  .yoyo-welcome-pill {
    display: none;
  }
  .detail-panel {
    width: 400px;
    max-width: 52vw;
  }
}

@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
    padding: 6px 10px;
    gap: 5px;
    min-height: auto;
  }

  .brand-btn {
    padding: 2px 4px;
    gap: 8px;
  }

  .brand-fox-mini svg {
    width: 28px;
    height: 28px;
  }

  .brand-badge {
    display: none;
  }

  .brand-title-row {
    gap: 6px;
  }

  .site-title {
    font-size: 0.98rem;
  }

  .toolbar-wrap {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    gap: 6px;
    padding-bottom: 2px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .toolbar-wrap::-webkit-scrollbar {
    display: none;
  }

  .theme-switcher {
    padding: 2px;
    border-radius: 999px;
    flex-shrink: 0;
  }

  .theme-btn {
    padding: 3px 8px;
    font-size: 0.72rem;
    min-height: 28px;
    border-radius: 999px;
    gap: 4px;
  }

  .theme-swatch {
    width: 10px;
    height: 10px;
  }

  .action-buttons {
    gap: 5px;
    flex-shrink: 0;
  }

  /* Hide desktop-only motion toggle on mobile to keep toolbar clean */
  #btnToggleMotion {
    display: none;
  }

  .tool-btn {
    padding: 4px 9px;
    font-size: 0.74rem;
    min-height: 32px;
    border-radius: 999px;
    gap: 4px;
  }

  .tool-btn.icon-only {
    min-width: 32px;
    min-height: 32px;
    padding: 4px;
    font-size: 0.85rem;
  }

  /* Floating Top Search Bar on Mobile */
  .floating-hud-top {
    top: 8px;
    left: 10px;
    right: 10px;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .quick-search-box {
    width: 100%;
    padding: 2px 10px;
    background: rgba(235, 246, 255, 0.86);
    border-width: 1px;
  }

  #quickSearchInput {
    min-height: 30px;
    font-size: 0.8rem;
  }

  /* Hide floating search & bottom dock when detail bottom-sheet is open on mobile */
  .viewport.panel-open .floating-hud-top,
  .viewport.panel-open .floating-hud-bottom {
    opacity: 0;
    pointer-events: none;
    transform: translateY(6px);
  }

  /* Bottom Island Dock on Mobile */
  .floating-hud-bottom {
    bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    left: 8px;
    right: 8px;
    gap: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  /* Hide long desktop instruction strip on mobile */
  .stage-meta-bar {
    display: none;
  }

  .island-dock {
    width: 100%;
    max-width: 100%;
    justify-content: flex-start;
    padding: 5px 6px;
    gap: 6px;
    border-radius: 16px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .island-dock::-webkit-scrollbar {
    display: none;
  }

  .dock-btn {
    padding: 5px 11px;
    font-size: 0.76rem;
    min-height: 34px;
    border-radius: 999px;
    scroll-snap-align: center;
    flex-shrink: 0;
  }

  /* Compact 3D Floating Island Labels on Mobile */
  .island-label {
    font-size: 0.72rem;
    padding: 3px 9px;
    min-height: 26px;
    border-width: 1.2px;
    box-shadow: 0 2px 8px rgba(12, 32, 56, 0.16);
  }

  .island-label.center-label {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-width: 1.5px;
  }

  /* Mobile Full-Screen Slide-Up Panel for Detail View */
  @keyframes mobileSlideUpFull {
    from {
      transform: translateY(100%);
    }
    to {
      transform: translateY(0);
    }
  }

  .detail-panel {
    position: fixed;
    inset: 0;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 100%;
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    border-left: none;
    border-top: none;
    border-radius: 0;
    box-shadow: none;
    z-index: 55;
    padding-top: env(safe-area-inset-top, 0px);
    animation: mobileSlideUpFull 0.26s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .panel-drag-handle {
    display: block;
    width: 42px;
    height: 5px;
    border-radius: 999px;
    background: var(--line);
    margin: 7px auto 2px;
    flex-shrink: 0;
    cursor: pointer;
  }

  .panel-header {
    padding: 10px 16px 10px;
    gap: 10px;
  }

  .panel-badge-row {
    margin-bottom: 4px;
    gap: 6px;
  }

  .panel-num-badge,
  .panel-theme-tag {
    font-size: 0.72rem;
    padding: 2px 8px;
  }

  .panel-title {
    font-size: 1.18rem;
    line-height: 1.3;
  }

  .panel-landmark {
    font-size: 0.8rem;
    margin-top: 4px;
    line-height: 1.4;
  }

  .panel-close-btn {
    min-width: 38px;
    min-height: 38px;
    border-radius: 999px;
    font-size: 1rem;
  }

  /* Compact Side-by-Side CTA Buttons on Mobile */
  .panel-cta-strip {
    padding: 8px 14px;
    grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
    gap: 6px;
  }

  .cta-card-btn {
    padding: 7px 10px;
    min-height: 42px;
    border-radius: 10px;
  }

  .cta-btn-main {
    font-size: 0.8rem;
  }

  .cta-btn-sub {
    font-size: 0.68rem;
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .panel-tabs {
    padding: 0 10px;
    gap: 2px;
    flex-shrink: 0;
  }

  .panel-tab {
    min-height: 38px;
    padding: 6px 10px;
    font-size: 0.8rem;
  }

  .panel-body {
    padding: 12px 14px;
    gap: 10px;
    -webkit-overflow-scrolling: touch;
  }

  .info-card {
    padding: 11px 13px;
    border-radius: 12px;
  }

  .info-card-title {
    font-size: 0.82rem;
    margin-bottom: 4px;
  }

  .info-card-text,
  .info-list {
    font-size: 0.84rem;
    line-height: 1.55;
  }

  .panel-footer {
    padding: 8px 12px calc(8px + env(safe-area-inset-bottom, 0px));
    gap: 6px;
    flex-shrink: 0;
  }

  .nav-step-btn {
    min-height: 38px;
    padding: 6px 8px;
    font-size: 0.78rem;
    border-radius: 10px;
  }

  /* Native Bottom-Sheet Style for Modals on Mobile */
  .modal-backdrop {
    padding: 0;
    align-items: flex-end;
  }

  .modal-dialog,
  .modal-dialog.modal-md,
  .modal-dialog.modal-sm {
    width: 100%;
    max-width: 100%;
    max-height: 88dvh;
    border-radius: 22px 22px 0 0;
    border-bottom: none;
  }

  .modal-header {
    padding: 12px 16px;
  }

  .modal-title {
    font-size: 1.02rem;
  }

  .modal-body,
  .list-controls-bar {
    padding: 12px 14px;
    -webkit-overflow-scrolling: touch;
  }

  .locations-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* Full-Screen Mobile Detail Panel — Zero 3D gap & Maximum Message Reading Area */
  .detail-panel {
    position: fixed !important;
    inset: 0 !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    z-index: 120 !important;
    padding-top: env(safe-area-inset-top, 0px) !important;
  }

  .panel-drag-handle {
    display: none !important;
  }

  .panel-header {
    padding: 8px 14px !important;
    gap: 8px !important;
    flex-shrink: 0 !important;
  }

  .panel-meta-row {
    margin-bottom: 2px !important;
  }

  .panel-title {
    font-size: 1.08rem !important;
    line-height: 1.25 !important;
  }

  .panel-landmark {
    font-size: 0.75rem !important;
    margin-top: 2px !important;
    line-height: 1.3 !important;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .panel-scroll-area {
    flex: 1 !important;
    min-height: 0 !important;
    display: block !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }

  .panel-tabs {
    position: sticky !important;
    top: 0 !important;
    z-index: 15 !important;
    background: var(--surface) !important;
    box-shadow: 0 2px 6px rgba(15, 42, 74, 0.06);
  }

  .panel-body {
    overflow-y: visible !important;
    flex: none !important;
    padding: 12px 14px 20px !important;
  }

}