:root {
  --blue: #0050FF;
  --blue-dark: #003ECC;
  --teal: #17E0D6;
  --navy: #0A1A2F;
  --bg: #DDE3EC;
  --white: #ffffff;
  --green: #06C270;
  --amber: #F5A623;
  --red: #FF5233;
  --text-primary: #0A1A2F;
  --text-secondary: #4A5568;
  --text-muted: #6B7688;
  --text-faint: #9AA5B5;
  --border: #D5DDEA;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  font-family: var(--font-body);
  color: var(--text-primary);
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  color: var(--text-primary);
}

.logo-dot {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--blue);
  display: inline-block;
  position: relative;
}
.logo-dot::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--teal);
  transform: translate(-50%, -50%);
}

.header-meta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.site-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.site-footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-faint);
  padding: 24px;
}

.bottom-nav {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: center;
  gap: 32px;
  background: rgba(245,247,250,.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(10,26,47,.08);
  padding: 12px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}
.nav-item { color: var(--text-faint); }
.nav-item.active { color: var(--blue); }

.back-link {
  display: inline-block;
  margin: 20px 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.hero {
  background: linear-gradient(155deg, var(--blue) 0%, #0A2E8C 100%);
  border-radius: 24px;
  padding: 28px;
  color: #fff;
  margin: 20px 0;
  position: relative;
  overflow: hidden;
  display: block;
  text-decoration: none;
}
a.hero {
  transition: transform .15s ease;
}
a.hero:hover, a.hero:focus-visible {
  transform: translateY(-2px);
}
.hero-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--teal);
  font-weight: 600;
}
.hero-name { font-family: var(--font-heading); font-weight: 700; font-size: 36px; margin: 6px 0 0; }
.hero-sub { font-size: 14px; color: rgba(255,255,255,.7); margin-top: 4px; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 20px;
}
.hero-metric {
  background: rgba(255,255,255,.12);
  border-radius: 14px;
  padding: 12px 14px;
}
.hero-metric-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; color: rgba(255,255,255,.6); }
.hero-metric-value { font-family: var(--font-heading); font-weight: 600; font-size: 20px; margin-top: 2px; }

.section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  margin: 24px 0 12px;
}

.region-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin: 16px 0;
}
.region-tab {
  white-space: nowrap;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--white);
  color: var(--text-primary);
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}
.region-tab.active { background: var(--blue); color: #fff; }

.filter-row-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 4px 0 -4px;
}
[data-filter-row] { margin-top: 8px; }
[data-filter-row] .region-tab { font-size: 12px; padding: 6px 12px; }

.wq-select {
  display: block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--white);
  color: var(--text-primary);
  border: none;
  cursor: pointer;
  margin: 8px 0 16px;
}

.beach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 640px) {
  .beach-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .beach-grid { grid-template-columns: repeat(3, 1fr); }
}

.beach-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--white);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: 0 4px 16px -12px rgba(10,26,47,.35);
  color: var(--text-primary);
}
.beach-score {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: #fff; flex-shrink: 0;
}
.status-good { background: var(--green); }
.status-fair { background: var(--amber); }
.status-poor { background: var(--red); }
.beach-score-value { font-family: var(--font-heading); font-weight: 700; font-size: 16px; line-height: 1; }
.beach-score-label { font-family: var(--font-mono); font-size: 7px; opacity: .85; }
.beach-info { flex: 1; min-width: 0; }
.beach-name { font-family: var(--font-heading); font-weight: 600; font-size: 15px; color: var(--text-primary); }
.beach-line { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); margin-top: 3px; }
.beach-air { text-align: right; flex-shrink: 0; }
.beach-air-value { font-family: var(--font-heading); font-weight: 700; font-size: 19px; }
.beach-wq { font-family: var(--font-mono); font-size: 10px; font-weight: 600; margin-top: 2px; }

.card {
  background: var(--white);
  border-radius: 20px;
  padding: 18px 20px;
  box-shadow: 0 6px 24px -16px rgba(10,26,47,.3);
  margin-bottom: 16px;
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 16px 0;
}
@media (min-width: 640px) {
  .metric-grid { grid-template-columns: repeat(3, 1fr); }
}
.metric {
  background: var(--white);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow: 0 4px 16px -13px rgba(10,26,47,.4);
}
.metric-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: .1em; color: var(--text-faint); }
.metric-value { font-family: var(--font-heading); font-weight: 700; font-size: 22px; margin-top: 3px; }
.metric-sub { font-size: 10px; color: var(--text-muted); margin-top: 1px; }

.wq-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #EAF9F0;
  border: 1px solid #BCEBCE;
  border-radius: 16px;
  padding: 14px 16px;
  margin-bottom: 16px;
}
.wq-banner.poor { background: #FFF1ED; border-color: #FFD3C6; }

.alert-card {
  background: var(--white);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: 0 4px 16px -13px rgba(10,26,47,.4);
  border-left: 4px solid var(--red);
  margin-bottom: 12px;
}
.alert-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--red);
  color: #fff;
}

.blue-flag-pill {
  display: inline-flex;
  align-items: center;
  background: var(--blue);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 3px 6px;
  border-radius: 6px;
}

.beach-info-card {
  background: var(--white);
  border-radius: 18px;
  padding: 4px 16px;
  box-shadow: 0 4px 16px -13px rgba(10,26,47,.4);
  margin-bottom: 16px;
}
.beach-info-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.beach-info-row:last-child { border-bottom: none; }
.beach-info-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--text-faint);
  width: 76px;
  flex-shrink: 0;
  padding-top: 1px;
}
.beach-info-value { font-size: 13px; color: var(--text-primary); text-align: right; }
.facility-tag {
  display: inline-block;
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 8px;
  margin: 2px 0 2px 4px;
}

.subsection-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 20px 0 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.subsection-label .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  display: inline-block;
}

.besttime-card {
  margin-bottom: 12px;
}
.besttime-day-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  margin: 0 0 2px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.besttime-day-title .date { color: var(--text-muted); font-weight: 400; font-size: 12px; }
.sun-line {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin: 6px 0 4px;
}
.besttime-hour {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 20px;
  color: var(--navy);
  margin: 6px 0 12px;
}
.besttime-hour .star { color: var(--teal); font-size: 16px; }
.besttime-hour .lbl {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--text-faint);
  margin-right: 2px;
}

.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--text-faint);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.form-input {
  width: 100%;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 13px 15px;
  font-size: 15px;
  color: var(--text-primary);
  font-family: var(--font-body);
}
.checkbox-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.checkbox-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 13px;
  border-radius: 999px;
  background: var(--white);
  border: 1.5px solid var(--border);
  cursor: pointer;
  color: var(--text-secondary);
}
.checkbox-pill input { display: none; }
.checkbox-pill:has(input:checked) {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid #EEF2F8;
}
.toggle-row:last-child { border-bottom: none; }
[data-toggle] {
  width: 42px; height: 24px;
  border-radius: 999px;
  background: var(--border);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}
[data-toggle].on { background: var(--blue); }
[data-toggle] input { position: absolute; opacity: 0; pointer-events: none; }
[data-toggle]::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.25);
  transition: left .15s ease;
}
[data-toggle].on::after { left: 21px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  padding: 15px;
  border-radius: 16px;
  border: none;
  cursor: pointer;
  width: 100%;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-danger { background: var(--red); color: #fff; }

.success-banner {
  background: #EAF9F0;
  border: 1px solid #BCEBCE;
  border-radius: 16px;
  padding: 16px;
  color: #0A3D26;
  text-align: center;
}
.error-banner {
  background: #FFF1ED;
  border: 1px solid #FFD3C6;
  border-radius: 16px;
  padding: 16px;
  color: #8A2B15;
  text-align: center;
}

.score-help {
  margin: 4px 0 8px;
}
.score-help summary {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}
.score-help summary:hover {
  color: var(--blue);
}
.score-help p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 8px 0 0;
  max-width: 60ch;
}