:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted-fg: #555555;
  --border: #cccccc;
  --card-bg: transparent;
  --log-bg: #f5f5f5;
  --accent-bg: #e6e6e6;
  --zone-blue: #1560bd;
  --zone-white: #555555;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #16181c;
    --fg: #eaeaea;
    --muted-fg: #a3a3a3;
    --border: #3a3d42;
    --card-bg: #1e2126;
    --log-bg: #1e2126;
    --accent-bg: #2a2d33;
    --zone-blue: #5b9bff;
    --zone-white: #c8c8c8;
  }
}

:root[data-theme="dark"] {
  --bg: #16181c;
  --fg: #eaeaea;
  --muted-fg: #a3a3a3;
  --border: #3a3d42;
  --card-bg: #1e2126;
  --log-bg: #1e2126;
  --accent-bg: #2a2d33;
  --zone-blue: #5b9bff;
  --zone-white: #c8c8c8;
}

body {
  font-family: system-ui, sans-serif;
  max-width: 640px;
  margin: 0 auto 2rem;
  padding: 0 1rem;
  color: var(--fg);
  background: var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.topbar h1 {
  font-size: 1.25rem;
  margin: 0;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.theme-toggle button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: none;
  border-left: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted-fg);
}

.theme-toggle button:first-child {
  border-left: none;
}

.theme-toggle button[aria-pressed="true"] {
  background: var(--accent-bg);
  color: var(--fg);
}

.theme-toggle svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.reset-btn {
  font-size: 0.85rem;
  padding: 0.35rem 0.7rem;
}

.hint {
  color: var(--muted-fg);
  font-size: 0.9rem;
}

fieldset {
  border: 1px solid var(--border);
  margin-bottom: 0.75rem;
}

.position-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.position-row input {
  width: 9rem;
}

.duration-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.duration-row select {
  padding: 0.3rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--fg);
}

#map {
  height: 350px;
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.you-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #d62728;
  border: 2px solid white;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.7);
}

button {
  cursor: pointer;
  padding: 0.4rem 0.8rem;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
}

button:disabled {
  cursor: default;
  opacity: 0.5;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
}

/* Not scoped to .card: also used inside map popups (segmentDetailsHtml in
   app.js), which aren't .card elements. */
.zone-blue { color: var(--zone-blue); font-weight: bold; }
.zone-white { color: var(--zone-white); font-weight: bold; }

.popup-note {
  color: var(--muted-fg);
  font-size: 0.85rem;
}

/* Leaflet's own popup chrome is theme-unaware (always light) -- override it
   so the richer content segmentDetailsHtml puts in there stays legible in
   dark mode instead of white-box-on-dark-page. */
.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
  background: var(--bg);
  color: var(--fg);
}

.leaflet-popup-close-button {
  color: var(--muted-fg) !important;
}

#log {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  max-height: 10rem;
  overflow-y: auto;
  background: var(--log-bg);
  padding: 0.5rem 1.5rem;
}