:root {
  --color-water: #0f4c75;
  --color-water-dark: #082e46;
  --color-surface: #f5f7f6;
  --color-card: #ffffff;
  --color-accent: #2c5f2d;
  --color-accent-light: #4caf50;
  --color-text: #1f2937;
  --color-muted: #6b7280;
  --color-border: #d1d5db;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --max-width: 720px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.55;
}

a { color: var(--color-water); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 18px;
}

.site-header {
  background: var(--color-water);
  color: #fff;
  padding: 16px 0;
}

.brand {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.site-footer {
  text-align: center;
  padding: 28px 0 40px;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer p { margin: 6px 0; }

.hero, .picker {
  margin: 32px auto 24px;
}

.hero h1, .picker h1 {
  font-size: 1.9rem;
  margin: 0 0 12px;
  color: var(--color-water-dark);
}

.hero p, .picker p {
  color: var(--color-muted);
  max-width: 560px;
}

.centered { text-align: center; }

.card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin: 24px 0;
}

.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.subscribe-form label {
  font-weight: 600;
  color: var(--color-text);
}

.subscribe-form input {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: none;
  padding: 12px 18px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  align-self: flex-start;
}

.btn-primary:hover { background: var(--color-accent-light); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.steps li {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.flash {
  padding: 12px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.flash.error { background: #fee2e2; color: #991b1b; }
.flash.success { background: #dcfce7; color: #166534; }

.small { font-size: 0.9rem; color: var(--color-muted); }

.searchbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 18px 0 12px;
}

.searchbar label { font-weight: 600; }

.searchbar input {
  flex: 1 1 220px;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
}

.count {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.popular-lakes { margin-bottom: 14px; }
.popular-lakes h2 { font-size: 1.1rem; margin-bottom: 8px; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  background: #e6f4ea;
  border: 1px solid var(--color-accent-light);
  color: var(--color-accent);
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
}

.chip:hover { background: #d2edda; }
.chip.active { background: var(--color-accent); color: #fff; }

.lake-list {
  max-height: 420px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
  padding: 8px 0;
  margin-bottom: 18px;
}

.lake-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  cursor: pointer;
  border-bottom: 1px solid #f3f4f6;
}

.lake-row:hover { background: #f9fafb; }
.lake-row.hidden { display: none; }

.lake-row input { accent-color: var(--color-accent); cursor: pointer; }

.save-btn { margin-bottom: 18px; }

.unsub-link { margin-top: 8px; }

/* Admin dashboard */
.admin h1 { margin-top: 28px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin: 20px 0 24px;
}

.stat-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-water-dark);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.admin-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.btn-secondary {
  background: #fff;
  color: var(--color-water);
  border: 1px solid var(--color-border);
  padding: 12px 18px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
}

.btn-secondary:hover { background: #f9fafb; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 24px;
}

.data-table th, .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background: #f3f4f6;
  font-weight: 600;
  font-size: 0.9rem;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-partial { background: #fef3c7; color: #92400e; }
.badge-running { background: #e0e7ff; color: #3730a3; }

.error-text {
  color: #991b1b;
  font-size: 0.9rem;
  max-width: 360px;
  word-break: break-word;
}

.muted { color: var(--color-muted); }

@media (max-width: 480px) {
  .hero h1, .picker h1 { font-size: 1.55rem; }
  .steps { grid-template-columns: 1fr; }
  .lake-list { max-height: 320px; }
  .data-table th, .data-table td { padding: 10px; font-size: 0.9rem; }
}