:root {
  color-scheme: light;
  --bg: #f6efe2;
  --panel: rgba(255, 251, 245, 0.92);
  --panel-strong: #fffaf2;
  --text: #1d2733;
  --muted: #5f6f7c;
  --accent: #0b6e4f;
  --accent-strong: #074b36;
  --accent-soft: #d8efe4;
  --border: rgba(29, 39, 51, 0.12);
  --shadow: 0 20px 60px rgba(54, 42, 18, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(11, 110, 79, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(210, 126, 55, 0.16), transparent 24%),
    linear-gradient(180deg, #f9f3e9 0%, #f1e4ce 100%);
}

.app-shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

h2,
.train-number,
.train-time {
  font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
}

.controls-card,
.results-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.controls-card {
  padding: 24px;
}

.controls-title {
  margin: 0 0 16px;
  text-align: center;
  font-family: Arial, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.controls-card .line-switcher {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  width: fit-content;
  margin: 0 auto 18px;
}

.controls-card .line-button {
  padding: 12px 16px;
  background: var(--panel-strong);
  border: 1px solid var(--accent);
  color: var(--accent);
  box-shadow: none;
}

.controls-card .line-button.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  box-shadow: 0 10px 24px rgba(11, 110, 79, 0.18);
}

.trip-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
}

.field {
  display: grid;
  gap: 8px;
}

.field span,
.detail-label,
.train-label,
.last-updated {
  font-family: Arial, sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--muted);
}

select,
button {
  border-radius: 18px;
  font: inherit;
}

select {
  width: 100%;
  padding: 14px 16px;
  background: var(--panel-strong);
  border: 1px solid var(--border);
  color: var(--text);
}

button {
  cursor: pointer;
  transition:
    transform 140ms ease,
    background-color 140ms ease,
    opacity 140ms ease;
}

button:hover {
  transform: translateY(-1px);
}

.swap-button,
.secondary-button {
  padding: 14px 18px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.refresh-button {
  padding: 14px 18px;
  background: var(--accent);
  color: white;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-top: 16px;
  flex-wrap: wrap;
}

.route-summary {
  margin: 0;
  color: var(--muted);
}

.results-card {
  margin-top: 20px;
  padding: 24px;
}

.results-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.8rem;
}

.last-updated {
  margin: 0;
}

.status-message {
  min-height: 24px;
  margin-bottom: 12px;
  color: var(--muted);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.train-card {
  padding: 18px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(248, 242, 232, 0.96)),
    var(--panel-strong);
  border: 1px solid var(--border);
}

.train-card-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

.train-label,
.train-number,
.train-time,
.detail-value {
  margin: 0;
}

.train-number {
  font-size: 1.25rem;
}

.train-heading {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.train-consist {
  margin: 0;
  max-width: 20ch;
  font-family: Arial, sans-serif;
  font-size: 0.8rem;
  line-height: 1.35;
  text-align: right;
  color: var(--muted);
  margin-left: auto;
}

.train-time {
  margin-top: 18px;
  font-size: 2rem;
  line-height: 1;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 12px;
  margin-top: 18px;
}

.detail-value {
  margin-top: 4px;
  font-family: Arial, sans-serif;
}

.detail-value.is-late {
  color: #a33f24;
}

.detail-value.is-on-time {
  color: var(--accent-strong);
}

@media (max-width: 720px) {
  .controls-card,
  .results-card {
    padding: 16px;
  }

  .trip-form {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  select,
  .line-button,
  .swap-button,
  .refresh-button {
    padding: 12px 14px;
    width: 100%;
  }

  .line-switcher {
    display: grid;
    grid-template-columns: 1fr;
  }

  .meta-row {
    margin-top: 12px;
  }
}

@media (max-width: 480px) {
  .controls-card,
  .results-card {
    padding: 12px;
  }
}