:root {
  --bg:          #081420;
  --bg-alt:      #0d1e35;
  --bg-row:      #0a1828;
  --border:      #1a3a5c;
  --text:        #cce0f0;
  --muted:       #5580a0;
  --accent:      #4fc3f7;

  --c-elevated:  #c8a820;
  --c-good:      #e07030;
  --c-large:     #d83030;

  --bg-elevated: rgba(200,168,32,0.10);
  --bg-good:     rgba(224,112,48,0.12);
  --bg-large:    rgba(216,48,48,0.15);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.4;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
header {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 1.5rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.tagline {
  color: var(--accent);
  font-size: 0.78rem;
  font-style: italic;
  opacity: 0.7;
  margin-top: 0.1rem;
}

.subtitle {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

.meta {
  color: var(--muted);
  font-size: 0.75rem;
  text-align: right;
  line-height: 1.6;
}

/* ── Spot tabs ───────────────────────────────────────────────────────────── */
.spot-tabs {
  display: flex;
  gap: 0.35rem;
  padding: 0.6rem 1.5rem 0;
  max-width: 1100px;
  margin: 0 auto;
}

.spot-tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 4px 4px 0 0;
  padding: 0.35rem 0.9rem;
  font-size: 0.78rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.spot-tab:hover { color: var(--text); border-color: var(--accent); }

.spot-tab.active {
  background: var(--bg);
  color: var(--accent);
  border-color: var(--accent);
  border-bottom-color: var(--bg);
  font-weight: 600;
}

/* ── Date navigation ─────────────────────────────────────────────────────── */
.date-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.date-btn {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  cursor: pointer;
  line-height: 1;
}

.date-btn:hover { border-color: var(--accent); color: var(--accent); }

.date-input {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  font-size: 0.8rem;
  font-family: inherit;
  color-scheme: dark;
}

.today-btn { margin-left: 0.25rem; }

.historical-badge {
  background: rgba(255,200,50,0.12);
  border: 1px solid rgba(255,200,50,0.35);
  color: #f0c040;
  border-radius: 4px;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-left: 0.5rem;
}

/* ── Main content ────────────────────────────────────────────────────────── */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 2rem;
}

.error-box {
  background: rgba(200,40,40,0.14);
  border: 1px solid rgba(200,60,60,0.4);
  color: #e09090;
  padding: 0.85rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* ── Wave windows ────────────────────────────────────────────────────────── */
.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.windows-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.window-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
}

.window-card.elevated { border-color: var(--c-elevated); }
.window-card.good     { border-color: var(--c-good); }
.window-card.large    { border-color: var(--c-large); }

.window-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.window-score { font-size: 1.6rem; font-weight: 700; line-height: 1.1; margin: 0.1rem 0; }
.window-card.elevated .window-score { color: var(--c-elevated); }
.window-card.good     .window-score { color: var(--c-good); }
.window-card.large    .window-score { color: var(--c-large); }
.window-time   { font-size: 0.82rem; color: var(--text); }
.window-detail { font-size: 0.72rem; color: var(--muted); margin-top: 0.1rem; }

/* ── Legend ──────────────────────────────────────────────────────────────── */
.legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.legend-item { display: flex; align-items: center; gap: 0.35rem; }
.legend-sep  { color: var(--border); }

.dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.dot.normal   { background: var(--muted); }
.dot.elevated { background: var(--c-elevated); }
.dot.good     { background: var(--c-good); }
.dot.large    { background: var(--c-large); }

.tide-flood-txt { color: #60b0e8; }
.tide-ebb-txt   { color: #d09050; }

/* ── Table ───────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 1.25rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead { background: var(--bg-alt); position: sticky; top: 0; z-index: 1; }

th {
  padding: 0.55rem 0.75rem;
  text-align: left;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid rgba(26,58,92,0.45);
  white-space: nowrap;
}

tr:last-child td { border-bottom: none; }

tr.day-sep td { border-top: 2px solid var(--border); }

tr:hover td { background: rgba(255,255,255,0.025); }

/* Row background tints for enhanced conditions */
tr.row-elevated { background: var(--bg-elevated); }
tr.row-good     { background: var(--bg-good); }
tr.row-large    { background: var(--bg-large); }

/* Current-time highlight */
tr.now td:first-child { color: var(--accent); font-weight: 600; }

/* Numeric columns */
.num { font-variant-numeric: tabular-nums; }

/* Strong current (≥1.7 kn) */
.strong-current { color: #38d9a9; font-weight: 600; }

/* Direction arrows (inline SVG, rotated to compass bearing) */
.dir-arrow {
  display: inline-block;
  vertical-align: middle;
  opacity: 0.75;
  transform-origin: center;
  flex-shrink: 0;
}

/* Tide cell: arrow sits flush left of the badge */
.tide-arrow-wrap {
  display: inline-block;
  vertical-align: middle;
  margin-right: 4px;
}

/* Inline arrow + label wrapper — works inside td without flex-on-td issues */
.dir-cell {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.dir-label {
  font-size: 0.82rem;
}

/* Tide badges */
.badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 500;
}
.tide-flood { background: rgba(40,120,200,0.18); color: #60b0e8; }
.tide-ebb   { background: rgba(200,100,20,0.18); color: #d09050; }
.tide-slack { background: rgba(80,110,140,0.18); color: var(--muted); }

/* Score bar */
.bar-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.bar {
  width: 64px;
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill { height: 100%; border-radius: 3px; }
.bar-fill.normal   { background: var(--muted); }
.bar-fill.elevated { background: var(--c-elevated); }
.bar-fill.good     { background: var(--c-good); }
.bar-fill.large    { background: var(--c-large); }

.score-num {
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  min-width: 2.5ch;
  color: var(--muted);
}

/* Condition column */
.cond { font-size: 0.82rem; }
.cond-normal   { color: var(--muted); }
.cond-elevated { color: var(--c-elevated); }
.cond-good     { color: var(--c-good); }
.cond-large    { color: var(--c-large); font-weight: 600; }

/* Loading placeholder */
.loading { text-align: center; color: var(--muted); padding: 2rem; }

/* Sources footer */
.sources { font-size: 0.72rem; color: var(--muted); }
.sources a { color: var(--accent); text-decoration: none; }
.sources a:hover { text-decoration: underline; }

.copyright {
  font-size: 0.68rem;
  color: var(--muted);
  opacity: 0.6;
  margin-top: 0.4rem;
}