:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #666666;
  --border: #dddddd;
  --accent: #111111;
  --accent-fg: #ffffff;
  --danger: #aa0000;
  --danger-fg: #ffffff;
  --secondary-bg: #f5f5f5;
  --alert-bg: #111111;
  --alert-fg: #ffffff;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

#app {
  max-width: 600px;
  margin: 0 auto;
  padding: 24px 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  margin-bottom: 24px;
}

header h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

header .tagline {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

main {
  flex: 1;
}

footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

.screen.hidden {
  display: none;
}

.toolbar {
  margin-bottom: 12px;
  display: flex;
  gap: 12px;
}

.toolbar button {
  flex: 1;
}

.voice-status {
  margin: 0 0 16px;
  font-size: 0.85rem;
  color: var(--muted);
}

.voice-status.ok {
  color: #006600;
}

.voice-status.error {
  color: var(--danger);
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.route-card {
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 16px;
  background: var(--bg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.route-card .info {
  flex: 1;
}

.route-card h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

.route-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.route-card .actions {
  display: flex;
  gap: 8px;
}

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 40px 0;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 0;
  background: var(--bg);
  color: var(--fg);
}

.form-group input:focus,
.form-group select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.stops-list {
  border: 1px solid var(--border);
  margin-bottom: 8px;
  max-height: 240px;
  overflow-y: auto;
}

.stop-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  gap: 8px;
}

.stop-item:last-child {
  border-bottom: none;
}

.stop-item .stop-name {
  flex: 1;
  font-size: 1rem;
}

.stop-item .stop-destination {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stop-item .stop-actions {
  display: flex;
  gap: 4px;
}

.add-stop-row {
  display: flex;
  gap: 8px;
}

.add-stop-row input {
  flex: 1;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 0;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.actions button {
  flex: 1;
}

button {
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--accent);
  border-radius: 0;
  background: var(--bg);
  color: var(--fg);
  cursor: pointer;
  text-align: center;
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

button.secondary {
  background: var(--secondary-bg);
  color: var(--fg);
  border-color: var(--border);
}

button.danger {
  background: var(--danger);
  color: var(--danger-fg);
  border-color: var(--danger);
}

button.small {
  padding: 6px 10px;
  font-size: 0.85rem;
}

.trip-header {
  margin-bottom: 20px;
}

.trip-header h2 {
  margin: 0 0 4px;
  font-size: 1.4rem;
}

.trip-header p {
  margin: 0;
  color: var(--muted);
}

.trip-status {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.status-block {
  border: 1px solid var(--border);
  padding: 16px;
}

.status-block .label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.status-block .value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
}

.alert-banner {
  background: var(--alert-bg);
  color: var(--alert-fg);
  padding: 24px;
  text-align: center;
  margin-bottom: 20px;
  animation: pulse 1s infinite;
}

.alert-banner.hidden {
  display: none;
}

.alert-banner span {
  font-size: 1.5rem;
  font-weight: 700;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.75; }
}

.trip-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.trip-controls button {
  width: 100%;
}

.trip-log h3 {
  font-size: 1rem;
  margin: 0 0 10px;
  color: var(--muted);
}

.trip-log ul {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
}

.trip-log li {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.trip-log li:last-child {
  border-bottom: none;
}

.trip-log time {
  color: var(--muted);
  font-size: 0.8rem;
  margin-right: 8px;
}