:root {
  --ink: #1d2320;
  --ink-soft: #55605a;
  --paper: #f6f4ef;
  --card: #ffffff;
  --line: #e2ded4;
  --green: #1f4d3a;
  --green-soft: #2f6b51;
  --rust: #c0392b;
  --main: #d8453c;
  --backup: #e08a2e;
  --optional: #d9bf2c;
  --end: #7c8a83;
  --shadow: 0 6px 24px rgba(29, 35, 32, .08);
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Noto Sans TC', -apple-system, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.35; margin: 0; }

/* ---------- Hero ---------- */

.hero {
  background:
    linear-gradient(135deg, rgba(31, 77, 58, .92), rgba(16, 43, 32, .95)),
    radial-gradient(circle at 80% 20%, rgba(216, 69, 60, .5), transparent 60%);
  color: #f3f7f4;
  padding: 56px 20px 44px;
}

.hero-inner { max-width: 1080px; margin: 0 auto; }

.kicker .ver {
  letter-spacing: .08em;
  color: #ffe08a;
  font-weight: 700;
}

.hero h1 { font-size: clamp(28px, 5vw, 44px); font-weight: 900; letter-spacing: .02em; }

.lede { margin: 12px 0 0; color: #d6e5dc; font-size: 15px; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.stat {
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 12px;
  padding: 10px 18px;
  min-width: 96px;
}

.stat-num { display: block; font-size: 24px; font-weight: 900; line-height: 1.2; }
.stat-label { font-size: 12px; color: #c6ddd0; }

/* ---------- Layout ---------- */

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 16px 56px;
  display: grid;
  gap: 24px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel-head { margin-bottom: 16px; }
.panel-head h2 { font-size: 20px; font-weight: 900; }
.panel-head h2::before {
  content: '';
  display: inline-block;
  width: 6px; height: 18px;
  background: var(--green);
  border-radius: 3px;
  margin-right: 10px;
  vertical-align: -2px;
}
.panel-sub { margin: 6px 0 0; font-size: 13.5px; color: var(--ink-soft); }

/* ---------- Map ---------- */

#map {
  height: 520px;
  border-radius: 12px;
  border: 1px solid var(--line);
  z-index: 0;
}

@media (max-width: 640px) { #map { height: 380px; } }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}
.legend-item { display: inline-flex; align-items: center; gap: 7px; }
.legend .dot { width: 14px; height: 14px; border-radius: 50%; display: inline-block; }
.legend .line {
  width: 26px; height: 0;
  border-top: 3px dashed var(--rust);
  display: inline-block;
}

.dot.tier-main { background: var(--main); }
.dot.tier-backup { background: var(--backup); }
.dot.tier-optional { background: var(--optional); }

.route-nav {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}
.route-nav-title { margin: 0 0 10px; font-size: 13.5px; font-weight: 700; color: var(--ink-soft); }
.route-nav-btns { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Map pins ---------- */

.pin-wrap { background: none; border: none; }

.pin {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  color: #fff;
  font-weight: 900;
  font-size: 14px;
  border: 2.5px solid #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .3);
}
.pin.tier-main { background: var(--main); }
.pin.tier-backup { background: var(--backup); }
.pin.tier-optional { background: var(--optional); color: #4a3f06; }
.pin.has-flag { box-shadow: 0 0 0 3px rgba(192, 57, 43, .35), 0 2px 8px rgba(0, 0, 0, .3); }

.leaflet-popup-content-wrapper { border-radius: 12px; }
.leaflet-popup-content { margin: 14px 16px; font-family: inherit; }
.popup h3 { font-size: 16px; margin: 2px 0 6px; }
.popup-tier { margin: 0; font-size: 12px; font-weight: 700; }
.popup-feature { margin: 0 0 10px; font-size: 13px; color: var(--ink-soft); }
.popup-btn {
  display: inline-block;
  background: var(--green);
  color: #fff !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 999px;
}
.popup-link {
  display: block;
  margin-top: 8px;
  background: none;
  border: none;
  padding: 0;
  color: var(--green-soft);
  font: inherit;
  font-size: 12.5px;
  text-decoration: underline;
  cursor: pointer;
}

.tier-text-main { color: var(--main); }
.tier-text-backup { color: var(--backup); }
.tier-text-optional { color: #a8901a; }
.tier-text-end { color: var(--end); }

/* ---------- Toolbar ---------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.filters { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  border: 1px solid var(--line);
  background: #fbfaf7;
  border-radius: 999px;
  padding: 6px 14px;
  font: inherit;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: .18s;
}
.chip:hover { border-color: var(--green-soft); color: var(--green); }
.chip.is-active { background: var(--green); border-color: var(--green); color: #fff; font-weight: 700; }

.bulk { display: flex; gap: 6px; }
.ghost-btn {
  border: 1px dashed var(--line);
  background: none;
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-size: 12.5px;
  color: var(--ink-soft);
  cursor: pointer;
}
.ghost-btn:hover { border-color: var(--green-soft); color: var(--green); }

/* ---------- Section head ---------- */

.section-head {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--green-soft);
  margin: 22px 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-head::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}
.section-head:first-child { margin-top: 0; }

/* ---------- Cards ---------- */

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--end);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: 0 4px 16px rgba(29, 35, 32, .08); }
.card[open] { box-shadow: 0 6px 20px rgba(29, 35, 32, .1); }
.card.is-flash { box-shadow: 0 0 0 3px rgba(47, 107, 81, .45); }

.tier-border-main { border-left-color: var(--main); }
.tier-border-backup { border-left-color: var(--backup); }
.tier-border-optional { border-left-color: var(--optional); }
.tier-border-end { border-left-color: var(--end); }

.card summary {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) auto;
  grid-template-areas:
    "no title chevron"
    "info info info";
  align-items: center;
  column-gap: 12px;
  row-gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.card summary::-webkit-details-marker { display: none; }

.card-no { grid-area: no; }
.card-title { grid-area: title; min-width: 0; }
.card-chevron { grid-area: chevron; }
.card-info-btn { grid-area: info; }

.card-no {
  flex: 0 0 auto;
  width: 32px; height: 32px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 14px;
  color: #fff;
  background: var(--end);
}
.card-no.tier-main { background: var(--main); }
.card-no.tier-backup { background: var(--backup); }
.card-no.tier-optional { background: var(--optional); color: #4a3f06; }

.card-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.card-name { font-size: 17px; font-weight: 700; }

.card-badges { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.badge {
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.tier-bg-main { background: #fdeceb; color: #a82f27; }
.tier-bg-backup { background: #fdf2e3; color: #99621b; }
.tier-bg-optional { background: #fbf7dd; color: #87731a; }
.tier-bg-end { background: #eef1ef; color: #5c6863; }
.badge-flag { background: #2b2b2b; color: #ffd9a8; }

.card-chevron {
  flex: 0 0 auto;
  width: 9px; height: 9px;
  border-right: 2px solid var(--ink-soft);
  border-bottom: 2px solid var(--ink-soft);
  transform: rotate(45deg);
  transition: transform .2s;
  margin-right: 4px;
}
.card[open] .card-chevron { transform: rotate(-135deg); }

.card-info-btn {
  display: flex !important;
  align-items: center;
  justify-content: center;
  width: 100%;
  box-sizing: border-box;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  margin: 0;
  border-radius: 10px;
  -webkit-tap-highlight-color: transparent;
}
.card-info-btn::before { content: none; }

.card-info-line {
  margin: 10px 0 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.card-info-line a {
  color: #6b4f2a;
  font-weight: 700;
}

@media (min-width: 641px) {
  .card summary {
    grid-template-columns: 32px minmax(0, 1fr) auto auto;
    grid-template-areas: "no title info chevron";
    row-gap: 0;
  }
  .card-info-btn {
    width: auto;
    padding: 5px 12px;
    font-size: 12.5px;
    border-radius: 999px;
  }
}

.card-body {
  padding: 0 16px 16px 60px;
  animation: reveal .22s ease;
}
@keyframes reveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}
@media (max-width: 640px) { .card-body { padding-left: 16px; } }

.card-meta {
  margin: 0 0 12px;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card-meta dt {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--green-soft);
  margin-bottom: 2px;
}
.card-meta dd { margin: 0; font-size: 14px; }

.card-note {
  background: #f7f6f1;
  border-radius: 10px;
  padding: 12px 14px;
}
.note-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: #fff;
  background: var(--green-soft);
  border-radius: 5px;
  padding: 1px 8px;
  margin-bottom: 6px;
}
.card-note p { margin: 0; font-size: 14.5px; }
.card-note strong { color: var(--rust); }

.card-extra {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
  padding-left: 12px;
  border-left: 3px solid var(--line);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 8px 16px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: .18s;
}
.btn:hover { border-color: var(--green-soft); color: var(--green); }

.btn-primary {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}
.btn-primary::before { content: '➤'; font-size: 12px; }
.btn-primary:hover { background: var(--green-soft); color: #fff; }

.btn-info {
  background: #f3ebe0;
  border-color: #c4a574;
  color: #6b4f2a;
}
.btn-info::before { content: '📷'; font-size: 12px; }
.btn-info:hover { background: #ead9c4; border-color: #a8844e; color: #4f3a1f; }

.btn-outline { border-color: var(--green-soft); color: var(--green); background: #f4f8f5; }
.btn-ghost { border-style: dashed; color: var(--ink-soft); }

.popup-info {
  display: inline-block;
  margin-left: 6px;
  background: #f3ebe0;
  color: #6b4f2a !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 999px;
}

.coords {
  font-size: 12px;
  color: #8b958f;
  font-variant-numeric: tabular-nums;
  margin-left: 2px;
}

/* ---------- Checklist ---------- */

.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.checklist li:last-child { border-bottom: none; }
.checklist input {
  margin: 6px 0 0;
  width: 17px; height: 17px;
  accent-color: var(--green);
  flex: 0 0 auto;
}
.checklist label { flex: 1; cursor: pointer; }
.checklist input:checked + label { color: #9aa39e; text-decoration: line-through; }
.check-link {
  flex: 0 0 auto;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--green-soft);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 11px;
}
.check-link:hover { border-color: var(--green-soft); }

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 22px 16px 40px;
  text-align: center;
}
footer p {
  max-width: 720px;
  margin: 0 auto;
  font-size: 12.5px;
  color: #8b958f;
}