/* ========================================================================
   ドライブルート図鑑 — TrailFusion AI design system
   - Cream background (#FFFBF2), navy text (#1F2E4D)
   - Chunky offset shadows (5px 5px 0)
   - Bold rounded sans (M PLUS Rounded 1c)
   - Neo-brutalist accent palette (yellow / coral / ocean / peach / grass)
   ======================================================================== */
:root {
  --cream: #FFFBF2;
  --cream-warm: #FFF4D4;
  --navy: #1F2E4D;
  --navy-soft: #3a4a6e;
  --muted: #8a93a8;
  --line: #1F2E4D;

  --c-yellow: #FFD84D;
  --c-coral:  #FF6B5B;
  --c-ocean:  #4ECDC4;
  --c-peach:  #FFB3BA;
  --c-grass:  #7DD87A;
  --c-sky:    #BFE7FF;

  /* Category mapping (matches TrailFusion palette) */
  --c-scenic: var(--c-ocean);
  --c-pass:   var(--c-coral);
  --c-kokudo: var(--c-yellow);

  --shadow-chunky: 5px 5px 0 var(--navy);
  --shadow-chunky-lg: 7px 7px 0 var(--navy);
  --shadow-soft: 0 6px 24px -8px rgba(31, 46, 77, 0.18);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --safe-bottom: env(safe-area-inset-bottom);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: 'M PLUS Rounded 1c', system-ui, -apple-system, "Hiragino Maru Gothic ProN", "Yu Gothic UI", sans-serif;
  background: var(--cream);
  color: var(--navy);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }

/* ====================================================================== */
/* TOP BAR                                                                */
/* ====================================================================== */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  pointer-events: none;
}
.topbar > * { pointer-events: auto; }
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  background: var(--c-yellow);
  border: 2.5px solid var(--navy);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-chunky);
  font-weight: 800;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.logo:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-chunky-lg); }
.logo-emoji { font-size: 18px; line-height: 1; }
.logo-text {
  font-size: 14px;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  color: var(--navy);
}
.logo-text b { font-weight: 900; }
.logo-text i {
  font-style: normal;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--navy-soft);
}
.topbar-spacer { flex: 1; }

.ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 2.5px solid var(--navy);
  color: var(--navy);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 3px 3px 0 var(--navy);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.ghost-btn:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--navy); }
.ghost-btn-primary { background: var(--c-coral); color: #fff; }

/* ====================================================================== */
/* MAP                                                                    */
/* ====================================================================== */
#map {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: #cfeaf7;
}
.leaflet-container {
  background: #cfeaf7;
  font-family: inherit;
}
.leaflet-control-zoom { border: 2.5px solid var(--navy) !important; box-shadow: var(--shadow-chunky); border-radius: 12px !important; overflow: hidden; }
.leaflet-control-zoom a {
  background: #fff !important;
  color: var(--navy) !important;
  border-color: var(--navy) !important;
  font-weight: 900 !important;
}
.leaflet-control-zoom a:hover { background: var(--c-yellow) !important; }
.leaflet-control-attribution {
  background: rgba(255, 255, 255, 0.92) !important;
  color: var(--navy-soft) !important;
  font-size: 10px !important;
  border: 1.5px solid var(--navy);
  border-right: 0; border-bottom: 0;
  border-radius: 8px 0 0 0;
}
.leaflet-control-attribution a { color: var(--navy) !important; font-weight: 700; }

/* Polylines render via Canvas; CSS class effects don't apply, but className is set */
.route-line { /* placeholder */ }

/* ====================================================================== */
/* FILTER DOCK                                                             */
/* ====================================================================== */
.filter-dock {
  position: fixed;
  top: 80px;
  left: 18px;
  z-index: 900;
  width: 320px;
  max-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: #fff;
  border: 2.5px solid var(--navy);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-chunky-lg);
}
.filter-title {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: var(--navy);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.filter-title::before {
  content: '';
  width: 18px; height: 2.5px;
  background: var(--navy);
}
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  background: var(--cream);
  border: 2px solid var(--navy);
  color: var(--navy);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 800;
  box-shadow: 2px 2px 0 var(--navy);
  transition: all 0.1s ease;
}
.pill:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--navy); }
.pill[aria-pressed="true"] {
  background: var(--c-yellow);
}
.pill[aria-pressed="false"] {
  background: #f3eee0;
  opacity: 0.55;
  box-shadow: 1px 1px 0 var(--navy);
  transform: none;
}
.pill[aria-pressed="false"]:hover { transform: translate(-1px, -1px); box-shadow: 2px 2px 0 var(--navy); }

.pill-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--navy);
}
.pill-dot-scenic { background: var(--c-scenic); }
.pill-dot-pass   { background: var(--c-pass); }
.pill-dot-kokudo { background: var(--c-kokudo); }

.pill-count {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 900;
  padding: 1px 7px;
  margin-left: 2px;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-pill);
  min-width: 22px;
  text-align: center;
}
.pill[aria-pressed="false"] .pill-count { background: var(--navy-soft); }

.filter-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  background: var(--cream);
  border: 2px solid var(--navy);
  border-radius: var(--radius-md);
  color: var(--navy);
  box-shadow: 2px 2px 0 var(--navy);
}
.filter-search:focus-within {
  background: #fff;
  box-shadow: 3px 3px 0 var(--navy);
}
.filter-search input {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--navy);
  padding: 9px 0;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  outline: 0;
  min-width: 0;
}
.filter-search input::placeholder { color: var(--navy-soft); opacity: 0.7; }
.filter-search kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px; height: 20px;
  padding: 0 5px;
  border: 1.5px solid var(--navy);
  border-radius: 5px;
  background: #fff;
  color: var(--navy);
  font: 10px/1 'Inter', monospace;
  font-weight: 800;
}

.results-list {
  list-style: none;
  margin: 0;
  padding: 4px 0 0;
  overflow-y: auto;
  max-height: 50vh;
  display: flex;
  flex-direction: column;
  gap: 6px;
  scroll-behavior: smooth;
}
.results-list::-webkit-scrollbar { width: 8px; }
.results-list::-webkit-scrollbar-thumb {
  background: var(--c-yellow);
  border: 2px solid var(--navy);
  border-radius: 4px;
}
.results-list::-webkit-scrollbar-track { background: transparent; }

.result-item {
  display: grid;
  grid-template-columns: 6px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  background: var(--cream);
  border: 2px solid var(--navy);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background 0.1s ease;
}
.result-item:hover {
  transform: translate(-1px, -1px);
  box-shadow: 2px 2px 0 var(--navy);
  background: #fff;
}
.result-item.active {
  background: var(--c-yellow);
  box-shadow: 3px 3px 0 var(--navy);
  transform: translate(-1px, -1px);
}
.result-swatch {
  width: 6px;
  height: 32px;
  border-radius: 3px;
  background: var(--c, var(--muted));
  border: 1.5px solid var(--navy);
}
.result-text { min-width: 0; }
.result-name {
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--navy);
}
.result-meta {
  font-size: 10px;
  color: var(--navy-soft);
  margin-top: 2px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.result-len {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 900;
  color: var(--navy);
  white-space: nowrap;
  background: #fff;
  border: 1.5px solid var(--navy);
  padding: 2px 7px;
  border-radius: var(--radius-pill);
}
.result-item.active .result-len { background: #fff; }

/* ====================================================================== */
/* DETAIL SHEET                                                            */
/* ====================================================================== */
.detail-sheet {
  position: fixed;
  bottom: 18px;
  right: 18px;
  z-index: 950;
  width: 380px;
  max-width: calc(100vw - 36px);
  max-height: calc(100vh - 110px);
  background: #fff;
  border: 2.5px solid var(--navy);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-chunky-lg);
  overflow-y: auto;
  transform: translateY(20px) rotate(0.5deg);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}
.detail-sheet[aria-hidden="false"] {
  transform: translateY(0) rotate(0deg);
  opacity: 1;
  pointer-events: auto;
}
.sheet-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 32px; height: 32px;
  border: 2px solid var(--navy);
  background: #fff;
  color: var(--navy);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  z-index: 2;
  box-shadow: 2px 2px 0 var(--navy);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.sheet-close:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--navy); }

.sheet-head {
  padding: 20px 20px 14px;
  border-bottom: 2px dashed var(--navy);
  background: var(--cat-bg, var(--c-ocean));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.sheet-cat {
  display: inline-block;
  padding: 4px 12px;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.sheet-head h2 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.01em;
  line-height: 1.3;
  color: var(--navy);
}
.sheet-pref {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  opacity: 0.7;
}

.sheet-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  background: var(--navy);
  border-bottom: 2px solid var(--navy);
}
.stat {
  background: var(--cream);
  padding: 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  border-right: 2px solid var(--navy);
}
.stat:last-child { border-right: 0; }
.stat-label {
  font-size: 10px;
  color: var(--navy-soft);
  letter-spacing: 0.06em;
  font-weight: 700;
  text-transform: uppercase;
}
.stat-value {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  font-weight: 900;
  color: var(--navy);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sheet-elev {
  height: 80px;
  padding: 12px 18px 0;
  background: #fff;
}
.sheet-elev:empty { display: none; }
.sheet-elev svg { width: 100%; height: 100%; display: block; }

.sheet-desc {
  margin: 12px 0 0;
  padding: 0 20px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--navy);
  background: #fff;
  font-weight: 500;
}

.sheet-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px calc(20px + var(--safe-bottom));
  background: #fff;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Chunky buttons (matches existing site) */
.btn-chunky {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  background: #fff;
  border: 2.5px solid var(--navy);
  color: var(--navy);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-chunky);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn-chunky:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-chunky-lg); }
.btn-chunky:active { transform: translate(0, 0); box-shadow: 2px 2px 0 var(--navy); }
.btn-chunky-primary { background: var(--c-coral); color: #fff; }
.btn-chunky-ghost { background: var(--cream); }

/* category-themed sheet header backgrounds */
.detail-sheet[data-cat="scenic"] { --cat-bg: var(--c-ocean); }
.detail-sheet[data-cat="pass"]   { --cat-bg: var(--c-coral); }
.detail-sheet[data-cat="kokudo"] { --cat-bg: var(--c-yellow); }

.detail-sheet[data-cat="pass"] .sheet-head h2,
.detail-sheet[data-cat="pass"] .sheet-pref { color: #fff; }
.detail-sheet[data-cat="pass"] .sheet-cat { background: #fff; color: var(--navy); }

/* ====================================================================== */
/* ABOUT DIALOG                                                            */
/* ====================================================================== */
.about-dialog {
  border: 0;
  background: transparent;
  padding: 0;
  max-width: 480px;
  width: calc(100vw - 36px);
}
.about-dialog::backdrop {
  background: rgba(31, 46, 77, 0.55);
}
.about-dialog[open] {
  background: var(--cream);
  color: var(--navy);
  border: 2.5px solid var(--navy);
  border-radius: var(--radius-lg);
  padding: 32px 28px 28px;
  position: relative;
  box-shadow: var(--shadow-chunky-lg);
  animation: dialogIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes dialogIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.dialog-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 36px; height: 36px;
  background: #fff;
  border: 2.5px solid var(--navy);
  color: var(--navy);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 900;
  box-shadow: 3px 3px 0 var(--navy);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.dialog-close:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--navy); }
.about-dialog h2 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.01em;
}
.about-dialog p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.8;
  font-weight: 500;
}
.about-list { margin: 0 0 16px; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.about-list li {
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  background: #fff;
  border: 2px solid var(--navy);
  border-radius: var(--radius-sm);
  box-shadow: 2px 2px 0 var(--navy);
}
.about-list li .pill-dot { margin-top: 4px; flex-shrink: 0; }
.about-list li b { font-weight: 900; }
.about-dialog .muted { color: var(--navy-soft); font-size: 11px; }

/* ====================================================================== */
/* LOADING                                                                 */
/* ====================================================================== */
.loading {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--cream);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
  background-image: radial-gradient(circle, rgba(31,46,77,0.1) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
}
.loading.hidden { opacity: 0; pointer-events: none; }
.loading-inner { text-align: center; }
.loading-emoji {
  font-size: 56px;
  animation: bounce-soft 1.2s ease-in-out infinite;
}
@keyframes bounce-soft {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50%      { transform: translateY(-10px) rotate(5deg); }
}
.loading-inner p {
  margin: 16px 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
}

/* ====================================================================== */
/* MOBILE                                                                  */
/* ====================================================================== */
@media (max-width: 720px) {
  .topbar { padding: 10px 10px; gap: 6px; }
  .logo { padding: 7px 12px; }
  .logo-text { font-size: 13px; }
  .ghost-btn { padding: 6px 10px; font-size: 11px; }

  /* Filter dock at the bottom; hidden when a route is selected so the
     detail sheet can take its place and the map stays visible above. */
  .filter-dock {
    top: auto;
    bottom: calc(8px + var(--safe-bottom));
    left: 8px;
    right: 8px;
    width: auto;
    max-height: 55vh;
    padding: 12px;
    gap: 8px;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  }
  body.detail-open .filter-dock {
    transform: translateY(120%);
    opacity: 0;
    pointer-events: none;
  }
  .results-list { max-height: 28vh; }

  /* Detail sheet pinned to the bottom — the map remains visible above. */
  .detail-sheet {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto;
    max-width: none;
    max-height: 65vh;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border-bottom: 0;
    box-shadow: 0 -4px 0 var(--navy), 0 -16px 32px -8px rgba(31, 46, 77, 0.25);
    padding-bottom: var(--safe-bottom);
    transform: translateY(100%);
  }
  .detail-sheet[aria-hidden="false"] { transform: translateY(0); }

  /* iOS-style drag handle hint at the top of the sheet */
  .detail-sheet::before {
    content: '';
    position: absolute;
    top: 8px; left: 50%;
    transform: translateX(-50%);
    width: 44px; height: 5px;
    border-radius: 999px;
    background: rgba(31, 46, 77, 0.18);
    z-index: 1;
  }
  .sheet-head { padding-top: 22px; }
  .sheet-close {
    top: 14px;
    right: 14px;
  }
  .sheet-actions {
    padding-bottom: calc(20px + var(--safe-bottom));
  }
}

/* ====================================================================== */
/* STICKER ACCENTS (subtle floating decorative bits)                       */
/* ====================================================================== */
.filter-dock::before {
  content: '🚗';
  position: absolute;
  top: -16px; right: -10px;
  font-size: 28px;
  background: var(--c-yellow);
  border: 2.5px solid var(--navy);
  border-radius: 50%;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-chunky);
  transform: rotate(8deg);
  pointer-events: none;
}
@media (max-width: 720px) {
  .filter-dock::before { display: none; }
}