:root {
  --color-road: #E24B4A;
  --color-pavement: #D85A30;
  --color-traffic: #378ADD;
  --color-pedestrian: #7F77DD;
  --color-green: #639922;
  --color-furniture: #1D9E75;
  --color-recreation: #D9A62E;
  --color-waste: #BA7517;
  --color-water: #2AA9C7;
  --color-noise: #888780;
  --bg: #111214;
  --bg-elevated: #1b1c1f;
  --text: #f2f2f0;
  --text-dim: #9a9a95;
  --radius: 14px;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 72px;
}

.screen { padding: 16px; max-width: 480px; margin: 0 auto; }

.btn {
  display: block;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius);
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary { background: var(--color-traffic); color: #fff; }
.btn-secondary { background: var(--bg-elevated); color: var(--text); }

input, select, textarea {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #333;
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 1rem;
  margin-bottom: 10px;
}

.category-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.category-tile {
  border-radius: var(--radius);
  padding: 20px 12px;
  color: #fff;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  line-height: 1.25;
}
.category-tile svg { width: 30px; height: 30px; opacity: .95; }
.category-tile.road { background: var(--color-road); }
.category-tile.pavement { background: var(--color-pavement); }
.category-tile.traffic { background: var(--color-traffic); }
.category-tile.pedestrian { background: var(--color-pedestrian); }
.category-tile.green { background: var(--color-green); }
.category-tile.furniture { background: var(--color-furniture); }
.category-tile.recreation { background: var(--color-recreation); }
.category-tile.waste { background: var(--color-waste); }
.category-tile.water { background: var(--color-water); }
.category-tile.noise { background: var(--color-noise); }

.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: flex; justify-content: space-around;
  background: var(--bg-elevated);
  padding: 8px 0 10px; border-top: 1px solid #2a2a2a;
  z-index: 20;
}
.bottom-nav a {
  color: var(--text-dim); text-decoration: none; font-size: 0.72rem; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 2px 10px;
}
.bottom-nav a svg { width: 22px; height: 22px; }
.bottom-nav a.active { color: var(--color-traffic); }

.card { background: var(--bg-elevated); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; background: var(--color-traffic); }
.slider-value { text-align: center; font-weight: 700; margin-bottom: 8px; }
.counter-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.counter-row button { width: 40px; height: 40px; border-radius: 50%; border: none; font-size: 1.2rem; background: var(--bg-elevated); color: var(--text); border: 1px solid #333; }
.error-banner { background: #4a1f1f; color: #ffb3b3; padding: 10px; border-radius: 10px; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.progress-dots { display: flex; gap: 6px; justify-content: center; margin-bottom: 16px; }
.progress-dots span { width: 8px; height: 8px; border-radius: 50%; background: #333; }
.progress-dots span.active { background: var(--color-traffic); }

/* Icon buttons */
.icon-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 14px; border-radius: var(--radius); border: 1px solid #333;
  background: var(--bg-elevated); color: var(--text); font-weight: 600; font-size: .95rem; cursor: pointer;
}
.icon-btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.icon-btn.recording { background: #4a1f1f; border-color: var(--color-road); color: #ffb3b3; }
.icon-btn.recording svg { color: var(--color-road); animation: cp-rec-pulse 1.2s infinite; }
@keyframes cp-rec-pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

/* Evidence step */
.evidence-section { margin-bottom: 18px; }
.evidence-section h4 { display: flex; align-items: center; gap: 8px; font-size: .9rem; margin: 0 0 8px; }
.evidence-section h4 svg { width: 18px; height: 18px; color: var(--text-dim); }
.evidence-timer { text-align: center; font-variant-numeric: tabular-nums; font-size: 1.3rem; font-weight: 700; margin: 8px 0; }
.photo-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.photo-grid .thumb { position: relative; width: 76px; height: 76px; border-radius: 10px; overflow: hidden; }
.photo-grid .thumb img { width: 100%; height: 100%; object-fit: cover; }
.photo-grid .thumb button {
  position: absolute; top: 2px; right: 2px; width: 20px; height: 20px; border-radius: 50%;
  border: none; background: rgba(0,0,0,.6); color: #fff; font-size: .7rem; cursor: pointer; padding: 0;
}
.media-preview { margin-top: 8px; }
.media-preview audio, .media-preview video { width: 100%; border-radius: 10px; }
.media-preview .remove-media { margin-top: 6px; }

/* AI counting session */
.ai-session video { width: 100%; border-radius: var(--radius); background: #000; margin-bottom: 10px; }
.ai-tally { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 12px; }
.ai-tally .tally-item { background: var(--bg-elevated); border-radius: 10px; padding: 10px; text-align: center; }
.ai-tally .tally-item b { display: block; font-size: 1.3rem; }
.ai-tally .tally-item span { font-size: .7rem; color: var(--text-dim); text-transform: capitalize; }
.live-counter-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 14px; }
.live-counter-card { background: var(--bg-elevated); border-radius: 10px; padding: 10px; text-align: center; }
.live-counter-card .label { font-size: .72rem; color: var(--text-dim); margin-bottom: 6px; min-height: 28px; }
.live-counter-card .value { font-size: 1.6rem; font-weight: 800; margin-bottom: 6px; }
.live-counter-card button {
  width: 100%; padding: 10px; border-radius: 8px; border: none; background: var(--color-traffic);
  color: #fff; font-size: 1.1rem; font-weight: 700; cursor: pointer;
}
.session-timer-ring { text-align: center; margin-bottom: 14px; }
.session-timer-ring .time { font-size: 2.2rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.session-timer-ring .label { font-size: .8rem; color: var(--text-dim); }
.duration-picker { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.duration-picker input[type=range] { flex: 1; margin: 0; }
.duration-picker .value { min-width: 64px; text-align: right; font-weight: 700; }

/* Home mini-map */
.mini-map { height: 220px; border-radius: var(--radius); overflow: hidden; margin-top: 10px; }
.mini-map .leaflet-control-attribution { font-size: 9px; }