:root {
  --bg-primary: #070d18;
  --bg-surface: #0e1726;
  --bg-surface-elevated: #142033;
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: #00e5ff;
  --text-primary: #f0f4f8;
  --text-secondary: #8fa3bf;
  --text-muted: #536b88;
  --accent-cyan: #00e5ff;
  --accent-blue: #2979ff;
  --accent-green: #00e676;
  --accent-amber: #ffab00;
  --accent-red: #ff3d71;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  padding: 24px;
}

.metocean-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.metocean-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
}

.metocean-title h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 12px;
}

.metocean-title p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 4px;
}

/* Gauges Grid */
.gauges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.gauge-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.gauge-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-cyan);
}

.gauge-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.gauge-value {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin: 6px 0;
}

.gauge-sub {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Tide & Draft Charts Section */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 700;
}

/* Tide SVG Container */
.tide-svg-wrap {
  width: 100%;
  height: 220px;
  background: var(--bg-surface-elevated);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Evaluator Form */
.form-group {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
}

select, input, button {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  outline: none;
  transition: all 0.2s ease;
}

select:focus, input:focus {
  border-color: var(--border-focus);
}

.btn-eval {
  width: 100%;
  background: linear-gradient(135deg, #00e5ff, #2979ff);
  color: #070d18;
  font-weight: 800;
  border: none;
  cursor: pointer;
  padding: 12px;
  border-radius: 8px;
  margin-top: 10px;
}

.btn-eval:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
}

.eval-result-box {
  margin-top: 16px;
  padding: 16px;
  border-radius: 8px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.25);
}

.eval-status-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.eval-status-clear {
  background: rgba(0, 230, 118, 0.2);
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
}

.eval-status-restricted {
  background: rgba(255, 171, 0, 0.2);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
}

.eval-status-closed {
  background: rgba(255, 61, 113, 0.2);
  color: var(--accent-red);
  border: 1px solid var(--accent-red);
}

@media (max-width: 1024px) {
  .gauges-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .charts-grid {
    grid-template-columns: 1fr;
  }
}