:root {
  --shade: #1d4ed8; --sun: #f97316; --text: #111827; --sub: #6b7280;
  --bg: #ffffff; --card: #f9fafb; --border: #e5e7eb; --chip: #eef2ff;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: -apple-system, "Segoe UI", Roboto, sans-serif; }
#map { position: absolute; inset: 0; }

.topbar {
  position: absolute; top: 0; left: 0; right: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: max(10px, env(safe-area-inset-top)) 12px 8px;
  pointer-events: none;
}
.brand {
  pointer-events: auto; background: var(--bg); border-radius: 12px; padding: 8px 12px;
  font-weight: 700; font-size: 15px; color: var(--text);
  box-shadow: 0 2px 12px rgba(0,0,0,.12);
}
.tagline { font-weight: 400; font-size: 11.5px; color: var(--sub); margin-left: 4px; }
.lang { pointer-events: auto; display: flex; gap: 4px; }
.lang-btn {
  border: 1px solid var(--border); background: var(--bg); border-radius: 8px;
  padding: 6px 9px; font-size: 12px; color: var(--sub); cursor: pointer;
}
.lang-btn.active { background: var(--chip); border-color: var(--shade); color: var(--shade); font-weight: 600; }

.panel {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 6;
  background: var(--bg); border-radius: 18px 18px 0 0;
  box-shadow: 0 -4px 24px rgba(0,0,0,.14);
  padding: 12px 14px calc(14px + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; gap: 7px;
  max-height: 62vh; overflow-y: auto;
}
.field { position: relative; }
.field input {
  width: 100%; background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; font-size: 15px; color: var(--text); outline: none;
}
.dropdown {
  display: none; position: absolute; top: 44px; left: 0; right: 0; z-index: 20;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  max-height: 170px; overflow-y: auto; box-shadow: 0 6px 20px rgba(0,0,0,.12);
}
.drop-item { padding: 9px 12px; font-size: 14px; color: var(--text); cursor: pointer; border-bottom: 1px solid var(--border); }
.drop-item:hover { background: var(--card); }

.row { display: flex; align-items: center; gap: 8px; }
.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.link-btn { border: none; background: none; color: var(--shade); font-size: 13.5px; cursor: pointer; padding: 2px 0; }
.link-btn.small { font-size: 12.5px; color: var(--sub); }
.hint { font-size: 11px; color: var(--sub); text-align: right; }

.mode-group { display: flex; background: var(--card); border-radius: 10px; padding: 3px; }
.mode-btn { border: none; background: none; border-radius: 8px; padding: 6px 11px; font-size: 13px; color: var(--sub); cursor: pointer; }
.mode-btn.active { background: var(--bg); color: var(--text); font-weight: 600; box-shadow: 0 1px 4px rgba(0,0,0,.12); }

.depart-group { display: flex; gap: 5px; }
.depart-chip {
  border: 1px solid var(--border); background: var(--card); border-radius: 999px;
  padding: 6px 10px; font-size: 12px; color: var(--sub); cursor: pointer;
}
.depart-chip.active { background: var(--chip); border-color: var(--shade); color: var(--shade); font-weight: 600; }

.slider-row { gap: 6px; }
.slider-label { font-size: 11.5px; color: var(--sub); white-space: nowrap; }
input[type="range"] { flex: 1; accent-color: var(--shade); }

.cta {
  flex: 1; background: var(--shade); color: #fff; border: none; border-radius: 12px;
  padding: 12px; font-size: 15px; font-weight: 600; cursor: pointer;
}
.cta:disabled { opacity: 0.55; }

.error { color: #dc2626; font-size: 13px; }
.stats { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; }
.stat-line { font-size: 15.5px; font-weight: 600; color: var(--text); }
.stat-line .pct { color: var(--shade); }
.stat-sub { font-size: 13px; color: var(--sub); margin-top: 3px; }
.chip-cmp {
  display: inline-block; margin-top: 7px; background: var(--chip); color: var(--shade);
  border-radius: 999px; padding: 4px 10px; font-size: 12.5px;
}

.sources { border-top: 1px solid var(--border); padding-top: 7px; }
.sources-title { font-size: 12.5px; font-weight: 600; color: var(--sub); cursor: pointer; }
.sources-list { margin-top: 6px; display: flex; flex-direction: column; gap: 4px; }
.src-row { display: flex; align-items: baseline; gap: 6px; font-size: 12px; }
.src-name { color: var(--text); font-weight: 500; white-space: nowrap; }
.src-detail { color: var(--sub); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }