:root {
  color-scheme: light;
  --background: #f4f6f8;
  --panel: #ffffff;
  --text: #18212f;
  --muted: #657184;
  --border: #d8dee8;
  --accent: #0f766e;
  --accent-dark: #0b5f59;
  --field: #fbfcfe;
  --shadow: 0 18px 45px rgba(25, 37, 52, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--background);
}

.app {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 32px;
}

.header {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(1.5rem, 6vw, 3rem);
  line-height: 1.05;
}

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

select {
  width: 100%;
  min-height: 48px;
  padding: 12px;
  color: var(--text);
  background: var(--field);
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  font-weight: 400;
  font-size: 16px;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

select:focus {
  outline: 3px solid rgba(15, 118, 110, 0.2);
  border-color: var(--accent);
}

select:disabled {
  color: #8a95a6;
  background: #eef2f6;
  cursor: not-allowed;
}

.result-card {
  min-height: 140px;
  padding: 22px;
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  border-radius: 8px;
  background: #fbfcfe;
}

.result-card.empty {
  display: flex;
  align-items: center;
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
}

.vehicle-title {
  margin: 0 0 18px;
  font-size: clamp(1.1rem, 5vw, 1.35rem);
}

.vehicle-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.vehicle-details div {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #ffffff;
}

.vehicle-details dt {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.vehicle-details dd {
  margin: 0;
  font-size: 0.95rem;
  word-break: break-word;
}

@media (max-width: 768px) {
  .app {
    width: calc(100% - 24px);
    padding: 40px 12px;
  }

  .panel {
    padding: 20px;
  }

  .header {
    margin-bottom: 20px;
  }

  .controls {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 18px;
  }

  label {
    font-size: 0.85rem;
  }

  select {
    min-height: 44px;
    font-size: 16px;
  }

  .vehicle-details {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .vehicle-details div {
    padding: 10px;
  }

  .vehicle-details dt {
    font-size: 0.65rem;
  }

  .vehicle-details dd {
    font-size: 0.9rem;
  }

  .vehicle-title {
    margin-bottom: 14px;
  }

  .result-card {
    padding: 16px;
    min-height: auto;
  }
}

@media (max-width: 480px) {
  .app {
    padding: 24px 12px;
  }

  .panel {
    padding: 16px;
  }

  h1 {
    font-size: clamp(1.25rem, 5vw, 2rem);
  }

  .eyebrow {
    font-size: 0.7rem;
  }

  .controls {
    gap: 12px;
    margin-bottom: 16px;
  }

  label {
    gap: 6px;
    font-size: 0.8rem;
  }

  select {
    min-height: 42px;
    padding: 10px;
  }

  .vehicle-title {
    font-size: clamp(1rem, 4vw, 1.2rem);
    margin-bottom: 12px;
  }

  .vehicle-details {
    gap: 10px;
  }

  .vehicle-details div {
    padding: 8px;
  }

  .vehicle-details dt {
    font-size: 0.6rem;
    margin-bottom: 3px;
  }

  .vehicle-details dd {
    font-size: 0.85rem;
  }

  .result-card {
    padding: 14px;
  }

  .result-card.empty {
    font-size: 0.9rem;
  }
}