/* Bootstrap Performance Explorer */

:root {
  --bg: #f8f9fa;
  --card-bg: #ffffff;
  --border: #dee2e6;
  --text: #212529;
  --text-muted: #6c757d;
  --primary: #2f5496;
  --accent: #28a745;
  --warning: #dc3545;
  --slider-track: #dee2e6;
  --slider-thumb: #2f5496;
}

* { 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);
  line-height: 1.5;
}

/* Layout */
.app { max-width: 1200px; margin: 0 auto; padding: 1rem; }

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 2px solid var(--primary);
  margin-bottom: 1rem;
}

.header h1 {
  font-size: 1.25rem;
  color: var(--primary);
  font-weight: 600;
}

.header .aircraft {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Navigation tabs */
.nav-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.nav-tab {
  padding: 0.5rem 1.25rem;
  cursor: pointer;
  border: none;
  background: none;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s, border-color 0.15s;
}

.nav-tab:hover { color: var(--text); }
.nav-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* Slider controls */
.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.slider-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: none;
  letter-spacing: 0;
}

input[type="range"] {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--slider-track);
  border-radius: 3px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--slider-thumb);
  cursor: pointer;
}

input[type="number"] {
  width: 80px;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.85rem;
  text-align: right;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.card-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.v-speed {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.25rem 0;
}

.v-speed-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.v-speed-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}

.v-speed-unit {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

.big-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.big-number-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Performance table */
.perf-table-wrapper {
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.perf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  font-family: "SF Mono", "Fira Code", monospace;
}

.perf-table th {
  background: var(--primary);
  color: white;
  padding: 0.4rem 0.6rem;
  text-align: right;
  font-weight: 600;
  position: sticky;
  top: 0;
}

.perf-table th:first-child { text-align: left; }

.perf-table td {
  padding: 0.25rem 0.6rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
}

.perf-table tr:nth-child(even) { background: #f8f9fa; }

/* V-speed row highlighting — colors match chart series */
.perf-table tr.vy-row  { background: #dce7f5; font-weight: 600; }  /* blue tint */
.perf-table tr.vx-row  { background: #f8e0e3; font-weight: 600; }  /* red tint */
.perf-table tr.vbg-row { background: #dcf5e2; font-weight: 600; }  /* green tint */
.perf-table tr.vmd-row { background: #fef0e0; font-weight: 600; }  /* orange tint */
.perf-table tr.vm-row  { background: #ede0f5; font-weight: 600; }  /* purple tint */

.perf-table .vspeed-label {
  text-align: left;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}
.perf-table tr.vy-row  .vspeed-label { color: #2f5496; }
.perf-table tr.vx-row  .vspeed-label { color: #dc3545; }
.perf-table tr.vbg-row .vspeed-label { color: #28a745; }
.perf-table tr.vmd-row .vspeed-label { color: #fd7e14; }
.perf-table tr.vm-row  .vspeed-label { color: #6f42c1; }

/* Charts */
.chart-container {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.chart-container svg {
  max-width: 100%;
  height: auto;
}

.chart-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

svg text {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Contour plot */
.contour-legend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.legend-bar {
  height: 12px;
  flex: 1;
  border-radius: 2px;
}

/* Glide table */
.glide-table {
  width: auto;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.glide-table th, .glide-table td {
  padding: 0.4rem 1rem;
  border: 1px solid var(--border);
  text-align: right;
}

.glide-table th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

/* Data plate table */
.data-plate-table {
  width: auto;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-plate-table th, .data-plate-table td {
  padding: 0.3rem 1rem;
  border: 1px solid var(--border);
  text-align: left;
}

.data-plate-table th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.data-plate-table td:nth-child(2) {
  text-align: right;
  font-family: "SF Mono", "Fira Code", monospace;
}

/* About page */
.about p { max-width: 72ch; }

.vspeed-defs {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.vspeed-def dt {
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.15rem;
}

.vspeed-def dd {
  margin-left: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 72ch;
}

/* Print button */
.print-btn {
  padding: 0.5rem 1.25rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 0.85rem;
  cursor: pointer;
  margin-bottom: 1rem;
}

.print-btn:hover { opacity: 0.9; }

/* Copy button */
.copy-btn {
  padding: 0.5rem 1.25rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 0.85rem;
  cursor: pointer;
  margin-bottom: 1rem;
  margin-left: 0.5rem;
  transition: background 0.15s;
}

.copy-btn:hover { opacity: 0.9; }

/* ForeFlight profile table */
.ff-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  font-family: "SF Mono", "Fira Code", monospace;
}

.ff-table th {
  background: var(--primary);
  color: white;
  padding: 0.5rem 0.75rem;
  text-align: right;
  font-weight: 600;
}

.ff-table th:first-child { text-align: left; }

.ff-table td {
  padding: 0.35rem 0.75rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
}

.ff-table td:first-child { text-align: left; }

.ff-table tr:nth-child(even) { background: #f8f9fa; }

.ff-table tr.ceiling-row {
  background: #fef0e0;
  font-weight: 600;
}

/* Print styles */
@media print {
  .controls, .nav-tabs, .print-btn, .copy-btn, .header .aircraft { display: none; }

  .app { max-width: none; padding: 0; }

  .header {
    border-bottom: 1px solid #000;
    margin-bottom: 0.5rem;
  }

  .card, .chart-container {
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  .perf-table th {
    background: #333;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  body { font-size: 10pt; }
}