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

:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface2: #f0f2f5;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-muted: #6b7280;
  --accent: #2563eb;
  --accent-light: #eff6ff;
  --green: #16a34a;
  --green-light: #f0fdf4;
  --amber: #d97706;
  --amber-light: #fffbeb;
  --red: #dc2626;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1117;
    --surface: #1c1f26;
    --surface2: #252830;
    --border: #2e3240;
    --text: #f0f2f5;
    --text-muted: #8b95a8;
    --accent: #4f8ef7;
    --accent-light: #1a2540;
    --green: #34d264;
    --green-light: #0d2318;
    --amber: #f5a623;
    --amber-light: #271e0a;
    --red: #f87171;
    --shadow: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  }
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  padding: 16px;
}

h2 { font-size: 17px; font-weight: 600; margin-bottom: 14px; }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.field-group { margin-bottom: 12px; }
.field-group:last-child { margin-bottom: 0; }

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 5px;
}

input[type="text"], input[type="number"], input[type="datetime-local"], select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font);
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.15);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}


.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.toggle-row {
  display: flex;
  background: var(--surface2);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
}

.toggle-btn {
  flex: 1;
  padding: 8px 10px;
  border: none;
  border-radius: 5px;
  font-size: 14px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  background: transparent;
  color: var(--text-muted);
  transition: all 0.15s;
}

.toggle-btn.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.calc-btn {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 4px;
}

.calc-btn:hover { background: #3b7de8; }
.calc-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.distance-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--surface2);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.results-list { display: flex; flex-direction: column; gap: 8px; }

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
}

.result-row.cheapest { border-color: var(--green); background: var(--green-light); }

.result-company { font-size: 14px; font-weight: 500; flex: 1; }

.cheapest-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  background: var(--green-light);
  border: 1px solid var(--green);
  padding: 2px 7px;
  border-radius: 10px;
  margin-left: 6px;
}

.result-fare { font-size: 16px; font-weight: 700; color: var(--text); white-space: nowrap; }
.result-row.cheapest .result-fare { color: var(--green); }

.section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.rate-table { width: 100%; border-collapse: collapse; font-size: 13px; }

.rate-table th {
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0 8px 8px 0;
  border-bottom: 1px solid var(--border);
}

.rate-table td {
  padding: 8px 8px 8px 0;
  border-bottom: 1px solid var(--surface2);
  vertical-align: middle;
}

.rate-table tr:last-child td { border-bottom: none; }
.rate-table td:not(:first-child) { font-weight: 500; font-variant-numeric: tabular-nums; }
.rate-table .low { color: var(--green); }
.rate-table .high { color: var(--red); }

.extras-list { display: flex; flex-direction: column; gap: 6px; }

.extra-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  padding: 7px 10px;
  background: var(--surface2);
  border-radius: var(--radius-sm);
}

.extra-company { color: var(--text-muted); }
.extra-detail { font-weight: 500; color: var(--text); text-align: right; font-size: 12px; max-width: 60%; }

.error-msg {
  padding: 12px;
  background: var(--amber-light);
  border: 1px solid var(--amber);
  border-radius: var(--radius-sm);
  color: var(--red);
  font-size: 14px;
  margin-bottom: 12px;
}

.info-note { font-size: 12px; color: var(--text-muted); margin-top: 8px; line-height: 1.4; }

#results { display: none; }

@media (max-width: 400px) {
  body { padding: 10px; }
  .row-2 { grid-template-columns: 1fr; }
}