:root {
  --bg: #0a1a28;
  --bg-panel: #123049;
  --bg-panel-alt: #0e2538;
  --bg-row-alt: #16354f;
  --border: #2a4d6b;
  --border-strong: #3a6690;
  --text: #f2f8fc;
  --text-dim: #9bb6c9;
  --accent: #5bd0f0;
  --accent-strong: #7ee0ff;
  --day-sep: #3a6690;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums;
  background: var(--bg);
  color: var(--text);
}

/* Cabecalho / hero */
header.hero {
  position: relative;
  padding: 40px 24px 32px;
  border-bottom: 2px solid var(--border);
  background:
    radial-gradient(ellipse 900px 400px at 15% -20%, rgba(91, 208, 240, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg-panel-alt) 0%, var(--bg) 100%);
  overflow: hidden;
}

.hero-inner {
  position: relative;
  max-width: 720px;
}

.hero-badge {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  border-radius: 14px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  box-shadow: 0 6px 18px rgba(0,0,0,0.3);
  margin-bottom: 16px;
}

.hero-eyebrow {
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2.4rem;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text);
}

.hero-meta {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.88rem;
  max-width: 52ch;
}

@media (max-width: 480px) {
  header.hero { padding: 28px 20px 24px; }
  .hero-badge { width: 44px; height: 44px; font-size: 1.4rem; margin-bottom: 12px; }
  .hero-title { font-size: 1.65rem; }
}

.place-select-row {
  padding: 16px 24px;
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.place-select-row label {
  color: var(--text-dim);
  font-size: 0.85rem;
}

select {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.95rem;
  min-width: 260px;
}

main {
  padding: 0 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel {
  background: linear-gradient(180deg, var(--bg-panel) 0%, var(--bg-panel-alt) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.22);
}

.panel-title {
  padding: 12px 18px;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-strong);
  border-bottom: 1px solid var(--border-strong);
}

.chart-scroll {
  overflow-x: auto;
}

.chart {
  display: flex;
  align-items: flex-end;
  padding: 16px 12px 0;
  min-width: max-content;
  position: relative;
}

.col {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 34px;
  flex: 0 0 auto;
  padding-bottom: 10px;
  border-right: 1px solid rgba(255,255,255,0.05);
}

.col.day-start {
  border-left: 2px solid var(--day-sep);
}

.bar-track {
  height: 160px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  width: 100%;
}

.bar {
  width: 100%;
  border-radius: 0;
  transition: opacity 0.15s;
}

.col.is-now {
  background: rgba(255,255,255,0.06);
  box-shadow: inset 1px 0 0 var(--accent-strong), inset -1px 0 0 var(--accent-strong);
}

.bar:hover {
  opacity: 0.75;
}

.value-label {
  font-size: 0.62rem;
  color: var(--text-dim);
  margin-top: 4px;
  height: 14px;
}

.arrow {
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 2px;
  line-height: 1;
}

.dir-label {
  font-size: 0.58rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
}

.time-label {
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-top: 4px;
  white-space: nowrap;
}

.day-labels {
  display: flex;
  padding: 0 12px;
  min-width: max-content;
}

.day-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text);
  border-left: 2px solid var(--day-sep);
  padding-left: 6px;
  padding-bottom: 6px;
}

.legend {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 14px;
  font-size: 0.7rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.legend .swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  margin-right: 3px;
  vertical-align: middle;
}

.legend-item {
  display: flex;
  align-items: center;
}

footer {
  padding: 16px 24px 32px;
  color: var(--text-dim);
  font-size: 0.75rem;
  border-top: 2px solid var(--border);
}

footer details {
  margin-top: 8px;
}

footer summary {
  cursor: pointer;
  color: var(--accent);
}

.meta-row {
  padding: 0 24px;
  color: var(--text-dim);
  font-size: 0.78rem;
}

.loading, .error {
  padding: 40px 24px;
  color: var(--text-dim);
}

.tide-panel { overflow-x: auto; }

.tide-table {
  border-collapse: collapse;
  font-size: 0.85rem;
  width: 100%;
}

.tide-table th, .tide-table td {
  min-width: 150px;
  border: 1px solid var(--border);
}

.tide-table th {
  text-align: left;
  padding: 10px 14px;
  color: var(--accent-strong);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--bg-panel-alt);
  border-bottom: 2px solid var(--border-strong);
}

.tide-table td {
  padding: 10px 14px;
  white-space: nowrap;
}

.tide-table tr:nth-child(even) td {
  background: var(--bg-row-alt);
}

.tide-icon {
  color: var(--accent);
}

.tabs {
  display: flex;
  gap: 6px;
  padding: 10px 16px 0;
}

.tab-btn {
  background: var(--bg-panel-alt);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.78rem;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 700;
}

.credit {
  margin: 12px 0 0;
  color: var(--text-dim);
  font-size: 0.72rem;
}

/* Card de resumo "agora" */
.summary-panel {
  margin: 0 24px;
}

.summary-updated {
  padding: 8px 16px 0;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.stale-warning {
  margin: 8px 16px 0;
  padding: 8px 12px;
  background: rgba(232, 69, 47, 0.18);
  border: 1px solid #e8452f;
  border-radius: 6px;
  color: #ffb4a3;
  font-size: 0.75rem;
  font-weight: 600;
}

.summary-stats-row {
  padding: 14px 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.summary-stat {
  min-width: 90px;
}

.summary-stat .stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  margin-bottom: 2px;
}

.summary-stat .stat-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
}

.summary-stat .stat-sub {
  font-size: 0.68rem;
  color: var(--accent);
}

/* Resumo da semana */
.week-panel { margin: 0 24px; }

#week-strip {
  display: flex;
  min-width: max-content;
}

.week-day {
  width: 92px;
  flex: 0 0 auto;
  text-align: center;
  padding: 12px 6px;
  border-right: 1px solid rgba(255,255,255,0.05);
}

.week-day .wd-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text);
}

.week-day .wd-range {
  font-size: 0.8rem;
  color: var(--accent-strong);
  margin-top: 6px;
}

.week-day .wd-arrow {
  font-size: 1rem;
  color: var(--accent);
  margin-top: 4px;
}

/* Escala de Ondas em Pernambuco */
.panel-title-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.scale-toggle-btn {
  background: var(--bg-panel-alt);
  color: var(--accent-strong);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
  white-space: nowrap;
}

.scale-toggle-btn:hover,
.scale-toggle-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.sea-condition {
  margin: 0 16px 16px;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg-panel-alt);
}

.sea-condition-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-dim);
}

.sea-condition-value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  margin-top: 4px;
}

.sea-condition-detail {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-size: 0.72rem;
  color: var(--text-dim);
}

.sea-condition-ref {
  margin-top: 8px;
  font-size: 0.66rem;
  color: var(--text-dim);
  opacity: 0.8;
}

.scale-info-panel { margin: 0 24px; }

.scale-info-body {
  padding: 12px 16px 16px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.scale-info-body > p:first-child { margin-top: 0; }

.scale-table-scroll { overflow-x: auto; }

.scale-table {
  border-collapse: collapse;
  font-size: 0.8rem;
  width: 100%;
  margin: 10px 0;
}

.scale-table th, .scale-table td {
  padding: 8px 12px;
  border: 1px solid var(--border);
  white-space: nowrap;
}

.scale-table th {
  text-align: left;
  color: var(--accent-strong);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--bg-panel-alt);
  border-bottom: 2px solid var(--border-strong);
}

.scale-table tr:nth-child(even) td {
  background: var(--bg-row-alt);
}

.scale-details { margin-top: 10px; }

.scale-details summary {
  cursor: pointer;
  color: var(--accent);
  font-size: 0.78rem;
}

.scale-details p {
  margin: 8px 0 0;
  font-size: 0.78rem;
}

/* Alertas de ondas (cadastro) */
.alerts-toggle-row {
  padding: 0 24px 16px;
}

.alerts-panel { margin: 0 24px 20px; }

.alerts-body {
  padding: 12px 16px 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.alerts-body > p:first-child { margin-top: 0; }

.alerts-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.alerts-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.alerts-field input,
.alerts-field select,
.alerts-conditional-input {
  background: var(--bg-panel-alt);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.9rem;
  font-family: inherit;
}

.alerts-conditional-input {
  margin-top: -4px;
  width: 100%;
}

.alerts-conditional-input:disabled {
  opacity: 0.45;
}

.alerts-fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alerts-fieldset legend {
  padding: 0 6px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--accent-strong);
}

.alerts-radio, .alerts-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
}

.alerts-consent {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.alerts-consent input { margin-top: 3px; }

.alerts-submit-btn {
  align-self: flex-start;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
}

.alerts-submit-btn:hover { background: var(--accent-strong); }
.alerts-submit-btn:disabled { opacity: 0.6; cursor: default; }

.alerts-msg {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
}

.alerts-msg-ok {
  background: rgba(79, 209, 90, 0.15);
  border: 1px solid #4fd15a;
  color: #b6f0bc;
}

.alerts-msg-error {
  background: rgba(232, 69, 47, 0.18);
  border: 1px solid #e8452f;
  color: #ffb4a3;
}

.alerts-note {
  margin: 12px 0 0;
  font-size: 0.72rem;
}

/* Grafico de mare (curva suave) */
.tide-graph-wrap {
  position: relative;
  padding: 16px 12px 0;
}

.tide-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.72rem;
  color: var(--text);
  white-space: nowrap;
  transform: translate(-50%, -110%);
  display: none;
  z-index: 5;
}