:root {
  --bg: #0b0d12;
  --bg-elev: #131722;
  --bg-elev-2: #1b2030;
  --border: #232a3d;
  --border-strong: #2c344a;
  --text: #e7ecf5;
  --text-dim: #94a0b8;
  --text-faint: #5c6986;
  --accent: #7aa2ff;
  --accent-2: #57d6c0;
  --warn: #ffb547;
  --danger: #ff6b6b;
  --good: #67e08a;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --radius-sm: 10px;
  --gap: 18px;
  --maxw: 1280px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.muted {
  color: var(--text-dim);
}

/* ------------------------------------------------------------------ */
/* Top bar / session badge                                            */
/* ------------------------------------------------------------------ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: linear-gradient(180deg, rgba(11, 13, 18, 0.95), rgba(11, 13, 18, 0.85));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 20px rgba(122, 162, 255, 0.35);
}
.brand h1 {
  font-size: 18px;
  margin: 0;
  letter-spacing: 0.2px;
}

.session-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  font-size: 13px;
}
.session-badge .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-faint);
  box-shadow: none;
}
.session-badge .timer {
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
}
.session-badge .hint {
  color: var(--text-faint);
  font-size: 12px;
}
.session-badge[data-state="active"] {
  border-color: rgba(103, 224, 138, 0.4);
  background: rgba(103, 224, 138, 0.08);
}
.session-badge[data-state="active"] .dot {
  background: var(--good);
  box-shadow: 0 0 0 6px rgba(103, 224, 138, 0.15);
  animation: pulse 1.6s ease-out infinite;
}
.session-badge[data-state="active"] .label {
  color: var(--good);
  font-weight: 600;
}
.session-badge[data-state="active"] .timer {
  color: var(--text);
  font-weight: 600;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(103, 224, 138, 0.5);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(103, 224, 138, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(103, 224, 138, 0);
  }
}

/* ------------------------------------------------------------------ */
/* Layout                                                             */
/* ------------------------------------------------------------------ */

.layout {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  margin-bottom: 14px;
}

/* ------------------------------------------------------------------ */
/* Metrics row                                                        */
/* ------------------------------------------------------------------ */

.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
.metric {
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.metric-label {
  font-size: 12px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-dim);
}
.metric-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
}
.metric-value .unit {
  font-size: 16px;
  color: var(--text-dim);
  font-weight: 500;
  margin-left: 4px;
}
.metric-sub {
  color: var(--text-dim);
  font-size: 12px;
}
.metric-accent {
  background: linear-gradient(160deg, rgba(122, 162, 255, 0.12), rgba(122, 162, 255, 0));
  border-color: rgba(122, 162, 255, 0.3);
}
.metric-accent .metric-value {
  color: var(--accent);
}
.metric .temp {
  color: var(--accent-2);
}

/* ------------------------------------------------------------------ */
/* Hero row (active friend + friends gallery)                         */
/* ------------------------------------------------------------------ */

.hero-row {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) 2fr;
  gap: var(--gap);
  align-items: stretch;
}

.friend-active-card {
  display: flex;
  flex-direction: column;
}
.friend-active-card #active-friend-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  text-align: center;
  flex: 1;
  justify-content: center;
}
.friend-active-card .friend-img {
  width: 130px;
  height: 130px;
  border-radius: 18px;
  object-fit: cover;
  background: var(--bg-elev-2);
  box-shadow: 0 0 0 1px var(--border-strong), 0 8px 24px rgba(0, 0, 0, 0.4);
}
.friend-active-card h3 {
  margin: 4px 0;
  font-size: 22px;
}
.friend-active-card .pill {
  display: inline-block;
  padding: 4px 10px;
  font-size: 11px;
  border-radius: 999px;
  background: rgba(103, 224, 138, 0.15);
  color: var(--good);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* ------------------------------------------------------------------ */
/* Tabs + friend grid                                                 */
/* ------------------------------------------------------------------ */

.tabs {
  display: inline-flex;
  background: var(--bg-elev-2);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.tab {
  border: none;
  background: transparent;
  color: var(--text-dim);
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tab:hover {
  color: var(--text);
}
.tab.active {
  background: var(--bg);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

.friend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}

.friend-card {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.friend-card.clickable-friend {
  cursor: pointer;
}
.friend-card.clickable-friend:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 6px 22px rgba(122, 162, 255, 0.18);
}
.friend-card.locked {
  opacity: 0.85;
}
.friend-card .friend-img {
  width: 78px;
  height: 78px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-elev);
}
.friend-card h3 {
  margin: 4px 0 0;
  font-size: 14px;
}
.friend-card .exp-bar-wrap {
  width: 100%;
  height: 6px;
  background: var(--bg-elev);
  border-radius: 4px;
  overflow: hidden;
}
.friend-card .exp-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.friend-card .exp-label {
  font-size: 11px;
  color: var(--text-dim);
  margin: 0;
}
.friend-card .unlock-req {
  font-size: 11px;
  color: var(--text-dim);
  margin: 0;
}
.friend-card .unlock-req.met {
  color: var(--good);
}
.friend-card.active-card {
  border-color: var(--good);
  box-shadow: 0 0 0 2px rgba(103, 224, 138, 0.25);
}

/* ------------------------------------------------------------------ */
/* Map section                                                        */
/* ------------------------------------------------------------------ */

.map-section #map {
  height: 380px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  overflow: hidden;
  background: var(--bg-elev-2);
}
.gps-raw {
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  max-width: 60%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Leaflet override for dark theme */
.leaflet-container {
  background: #0f1320;
  font-family: inherit;
}
.leaflet-control-attribution {
  background: rgba(11, 13, 18, 0.7) !important;
  color: var(--text-dim) !important;
}
.leaflet-control-attribution a {
  color: var(--accent) !important;
}

/* ------------------------------------------------------------------ */
/* Sessions history                                                   */
/* ------------------------------------------------------------------ */

.sessions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.session-card {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.session-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}
.session-card .session-date {
  font-size: 12px;
  color: var(--text-dim);
}
.session-card .session-headline {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.session-card .session-stats {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--text-dim);
}
.session-card .session-stats span {
  font-variant-numeric: tabular-nums;
}
.weather-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--text-dim);
}
.weather-pill img {
  width: 22px;
  height: 22px;
}

/* ------------------------------------------------------------------ */
/* Modal                                                              */
/* ------------------------------------------------------------------ */

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal.hidden {
  display: none;
}
.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}
.modal-content {
  position: relative;
  width: min(720px, 92vw);
  max-height: 88vh;
  overflow: auto;
  z-index: 1;
}
.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: transparent;
  border: 0;
  color: var(--text-dim);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}
.modal-close:hover {
  color: var(--text);
}

.modal-body h2 {
  margin: 0 0 4px;
}
.modal-body .meta {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 14px;
}
.modal-body .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}
.modal-body .stat-tile {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.modal-body .stat-tile .l {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-dim);
  letter-spacing: 0.4px;
}
.modal-body .stat-tile .v {
  font-size: 18px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.modal-body #modal-map {
  height: 280px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  overflow: hidden;
  margin-bottom: 12px;
}
.modal-body .weather-block {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.modal-body .weather-block .icon {
  width: 56px;
  height: 56px;
}
.modal-body .weather-block .meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--text-dim);
}

/* ------------------------------------------------------------------ */
/* Buttons                                                            */
/* ------------------------------------------------------------------ */

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

/* ------------------------------------------------------------------ */
/* Responsive                                                         */
/* ------------------------------------------------------------------ */

@media (max-width: 1000px) {
  .metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-row {
    grid-template-columns: 1fr;
  }
  .modal-body .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .topbar {
    padding: 12px 14px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .session-badge .hint {
    display: none;
  }
  .layout {
    padding: 14px;
  }
  .metric-value {
    font-size: 26px;
  }
}