:root {
  --green-50: #f1f7f2;
  --green-600: #2d5a3d;
  --green-700: #234630;
  --green-800: #1a3423;
  --earth-500: #b5793a;
  --bg: #f7f5ef;
  --card-bg: #ffffff;
  --text: #22281f;
  --text-muted: #5a6259;
  --border: #e1ddd0;
  --shadow: 0 1px 3px rgba(30, 40, 25, 0.08), 0 1px 2px rgba(30, 40, 25, 0.06);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12181a;
    --card-bg: #1a2420;
    --text: #e9efe6;
    --text-muted: #9fb0a2;
    --border: #2b3630;
    --green-50: #16241a;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

:root[data-theme="dark"] {
  --bg: #12181a;
  --card-bg: #1a2420;
  --text: #e9efe6;
  --text-muted: #9fb0a2;
  --border: #2b3630;
  --green-50: #16241a;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

header.hero {
  background: linear-gradient(160deg, var(--green-700), var(--green-800));
  color: #fff;
  padding: 40px 20px 32px;
  margin-bottom: -20px;
}

header.hero .wrap { padding-bottom: 0; }

.hero h1 {
  font-size: clamp(24px, 4vw, 34px);
  margin: 0 0 8px;
}

.hero p {
  margin: 0;
  color: #cfe0d3;
  max-width: 640px;
  font-size: 15px;
}

.progress-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 24px;
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}

.progress-headline {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.progress-headline #progress-count {
  font-size: 30px;
  font-weight: 700;
  color: var(--green-600);
}

.progress-headline #progress-pct {
  font-size: 15px;
  color: var(--text-muted);
}

.progress-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-top: 10px;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #7bb896, var(--green-600));
  transition: width 0.4s ease;
}

.streak-box {
  text-align: right;
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}

.streak-box strong {
  display: block;
  font-size: 20px;
  color: var(--earth-500);
}

section { margin-top: 32px; }

section h2 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--text);
}

.region-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.region-chip {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
}

.region-chip.done { border-color: var(--green-600); }

.region-chip .region-icon { margin-right: 4px; }
.region-chip .region-count { float: right; color: var(--text-muted); }
.region-bar {
  height: 5px;
  background: var(--border);
  border-radius: 999px;
  margin-top: 8px;
  overflow: hidden;
}
.region-bar-fill {
  height: 100%;
  background: var(--green-600);
}

.suggestion {
  background: var(--green-50);
  border: 1px dashed var(--green-600);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 14px;
}

.achievements {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
}

.badge {
  border-radius: 12px;
  padding: 12px 10px;
  text-align: center;
  font-size: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
}

.badge.locked { opacity: 0.35; filter: grayscale(1); }
.badge.unlocked { border-color: var(--earth-500); box-shadow: var(--shadow); }
.badge-icon { display: block; font-size: 22px; margin-bottom: 6px; }

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.toolbar input, .toolbar select {
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
}

.toolbar input { flex: 1; min-width: 160px; }

.park-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.park-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.park-card.visited {
  border-color: var(--green-600);
}

.park-card .stamp {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--green-600);
  color: var(--green-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  opacity: 0;
  transform: scale(0.6) rotate(-15deg);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.park-card.visited .stamp {
  opacity: 1;
  transform: scale(1) rotate(-8deg);
}

.park-icon { font-size: 26px; }
.park-name { margin: 8px 0 2px; font-size: 16px; }
.park-meta { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.park-blurb { font-size: 13px; color: var(--text-muted); margin: 0 0 14px; min-height: 36px; }

.park-actions { display: flex; flex-direction: column; gap: 8px; }

.btn-toggle {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--green-600);
  background: transparent;
  color: var(--green-600);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

.park-card.visited .btn-toggle {
  background: var(--green-600);
  color: #fff;
}

.visit-date {
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.empty { color: var(--text-muted); padding: 20px 0; }

#toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--green-800);
  color: #fff;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 50;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
}

@media (max-width: 560px) {
  .progress-panel { grid-template-columns: 1fr; }
  .streak-box { text-align: left; }
}