:root {
  --bg-deep: #0b1320;
  --bg-card: #121e31;
  --bg-card-hover: #17263e;
  --bg-elevated: #1c2d48;
  --border-subtle: rgba(148, 163, 184, 0.14);
  --border-highlight: rgba(148, 163, 184, 0.28);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* 4-Tier Sailing Status Palette */
  --status-good-bg: rgba(16, 185, 129, 0.14);
  --status-good-border: rgba(16, 185, 129, 0.45);
  --status-good-text: #34d399;
  --status-good-solid: #10b981;

  --status-calm-bg: rgba(56, 189, 248, 0.14);
  --status-calm-border: rgba(56, 189, 248, 0.45);
  --status-calm-text: #38bdf8;
  --status-calm-solid: #0ea5e9;

  --status-sporty-bg: rgba(245, 158, 11, 0.14);
  --status-sporty-border: rgba(245, 158, 11, 0.45);
  --status-sporty-text: #fbbf24;
  --status-sporty-solid: #f59e0b;

  --status-danger-bg: rgba(239, 68, 68, 0.15);
  --status-danger-border: rgba(239, 68, 68, 0.5);
  --status-danger-text: #f87171;
  --status-danger-solid: #ef4444;

  --accent-primary: #38bdf8;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at 50% 0%, #152540 0%, var(--bg-deep) 65%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

/* Header */
.app-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 4px 10px;
  border-radius: 999px;
  width: fit-content;
}

.brand-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* Controls Bar */
.controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.control-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  font-weight: 600;
}

.select-input,
.btn-refresh {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-sm);
  padding: 9px 13px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.select-input:hover,
.btn-refresh:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
}

.btn-refresh {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-end;
  height: 39px;
}

/* Alert Banner */
.advisory-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  background: var(--status-danger-bg);
  border: 1px solid var(--status-danger-border);
  color: #fecaca;
}

.advisory-banner.hidden {
  display: none;
}

.advisory-icon {
  font-size: 1.3rem;
  line-height: 1.2;
}

.advisory-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--status-danger-text);
  margin-bottom: 2px;
}

.advisory-content p {
  font-size: 0.85rem;
  color: var(--text-primary);
  opacity: 0.9;
}

/* Color Scale Legend */
.legend-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(18, 30, 49, 0.75);
  border: 1px solid var(--border-subtle);
  font-size: 0.82rem;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-dot.calm {
  background: var(--status-calm-solid);
  box-shadow: 0 0 10px var(--status-calm-solid);
}
.legend-dot.good {
  background: var(--status-good-solid);
  box-shadow: 0 0 10px var(--status-good-solid);
}
.legend-dot.sporty {
  background: var(--status-sporty-solid);
  box-shadow: 0 0 10px var(--status-sporty-solid);
}
.legend-dot.danger {
  background: var(--status-danger-solid);
  box-shadow: 0 0 10px var(--status-danger-solid);
}

.legend-text strong {
  display: block;
  color: var(--text-primary);
  font-size: 0.84rem;
}

.legend-text span {
  color: var(--text-secondary);
  font-size: 0.77rem;
}

/* 7-Day Forecast Cards Grid */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 8px;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.section-meta {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.forecast-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

@media (max-width: 1120px) {
  .forecast-grid {
    grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
  }
}

@media (max-width: 600px) {
  .forecast-grid {
    grid-template-columns: 1fr;
  }
}

.day-card {
  position: relative;
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 14px;
  cursor: pointer;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.day-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
}

.day-card.status-good::before { background: var(--status-good-solid); }
.day-card.status-calm::before { background: var(--status-calm-solid); }
.day-card.status-sporty::before { background: var(--status-sporty-solid); }
.day-card.status-danger::before { background: var(--status-danger-solid); }

.day-card:hover {
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.day-card.selected.status-good {
  border-color: var(--status-good-solid);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.22), var(--shadow-card);
}
.day-card.selected.status-calm {
  border-color: var(--status-calm-solid);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.22), var(--shadow-card);
}
.day-card.selected.status-sporty {
  border-color: var(--status-sporty-solid);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.22), var(--shadow-card);
}
.day-card.selected.status-danger {
  border-color: var(--status-danger-solid);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25), var(--shadow-card);
}

.day-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.day-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.day-date {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.day-wx-icon {
  font-size: 1.35rem;
}

/* Status Pill inside card */
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
}

.status-pill.good {
  background: var(--status-good-bg);
  color: var(--status-good-text);
  border: 1px solid var(--status-good-border);
}
.status-pill.calm {
  background: var(--status-calm-bg);
  color: var(--status-calm-text);
  border: 1px solid var(--status-calm-border);
}
.status-pill.sporty {
  background: var(--status-sporty-bg);
  color: var(--status-sporty-text);
  border: 1px solid var(--status-sporty-border);
}
.status-pill.danger {
  background: var(--status-danger-bg);
  color: var(--status-danger-text);
  border: 1px solid var(--status-danger-border);
}

.day-metrics {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.82rem;
}

.metric-label {
  color: var(--text-secondary);
}

.metric-val {
  font-weight: 700;
  color: var(--text-primary);
}

.metric-sub {
  font-size: 0.73rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.am-pm-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.73rem;
}

.split-box {
  background: rgba(11, 19, 32, 0.55);
  padding: 5px 7px;
  border-radius: 6px;
  text-align: center;
}

.split-box span {
  display: block;
  color: var(--text-secondary);
  font-size: 0.67rem;
  text-transform: uppercase;
}

.split-box strong {
  color: var(--text-primary);
  font-size: 0.77rem;
}

.day-verdict {
  font-size: 0.76rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

/* Detailed Selected Day Panel */
.detail-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 28px;
}

.detail-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 20px;
}

.detail-title-group h2 {
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.detail-summary-text {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  max-width: 780px;
}

.sail-plan-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.plan-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.plan-card-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 4px;
}

.plan-card-value {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.plan-card-note {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* Hourly Table */
.hourly-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.hourly-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.hourly-table th {
  background: rgba(11, 19, 32, 0.8);
  color: var(--text-secondary);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.hourly-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

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

.hourly-table tr.sailing-window-row {
  background: rgba(56, 189, 248, 0.03);
}

.hourly-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

.wind-dir-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.wind-arrow {
  display: inline-block;
  font-size: 0.95rem;
  line-height: 1;
}

.hour-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 6px;
}

.hour-dot.good { background: var(--status-good-solid); }
.hour-dot.calm { background: var(--status-calm-solid); }
.hour-dot.sporty { background: var(--status-sporty-solid); }
.hour-dot.danger { background: var(--status-danger-solid); }

/* Bottom Info Grid: Tides & Local MDR Guide */
.bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 860px) {
  .bottom-grid {
    grid-template-columns: 1fr;
  }
}

.info-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.info-panel h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tide-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.tide-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.tide-type {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tide-type.high { color: var(--status-calm-text); }
.tide-type.low { color: var(--status-sporty-text); }

.tide-time {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 2px 0;
}

.tide-height {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.local-notes-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.local-notes-list li strong {
  color: var(--text-primary);
}

.loading-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-secondary);
  font-size: 1rem;
}

.footer-note {
  margin-top: 32px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}