:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #17202a;
  --muted: #64748b;
  --border: #e2e8f0;
  --brand: #0f766e;
  --brand-ink: #ffffff;
  --go: #15803d;
  --stop: #b91c1c;
  --warn-bg: #fef3c7;
  --warn-ink: #92400e;
  --info-bg: #e0f2fe;
  --info-ink: #075985;
  --ok-bg: #dcfce7;
  --ok-ink: #166534;
  --live: #dc2626;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1117;
    --card: #141c25;
    --text: #e6edf3;
    --muted: #8b9bb0;
    --border: #253141;
    --brand: #14b8a6;
    --brand-ink: #04201d;
    --go: #22c55e;
    --stop: #ef4444;
    --warn-bg: #3a2a07;
    --warn-ink: #fcd34d;
    --info-bg: #0c2a3d;
    --info-ink: #7dd3fc;
    --ok-bg: #0f2e1b;
    --ok-ink: #86efac;
    --live: #f87171;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--brand); }
code { font-size: 0.9em; }

/* ---------- Header / tabs ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--brand);
  color: var(--brand-ink);
  padding: env(safe-area-inset-top) 16px 0;
}
.topbar h1 { margin: 0; padding: 12px 0 4px; font-size: 1.15rem; letter-spacing: 0.02em; }
.topbar-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; max-width: 1100px; margin: 0 auto; }
.signout {
  margin-top: 8px;
  padding: 5px 12px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.85;
}
.signout:hover { opacity: 1; }

/* ---------- Login ---------- */
.login-body { min-height: 100vh; display: grid; place-items: center; }
.login-wrap { width: 100%; max-width: 400px; padding: 16px; }
.login-card { text-align: left; }
.login-card h1 { margin: 8px 0 0; font-size: 1.4rem; }
.login-card .muted { margin-top: 4px; }
.login-icon { display: block; border-radius: 14px; }
.tabs { display: flex; gap: 4px; overflow-x: auto; }
.tabs a {
  flex: 1;
  text-align: center;
  padding: 10px 8px 12px;
  color: inherit;
  opacity: 0.75;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.tabs a.active { opacity: 1; border-bottom-color: currentColor; }

main { max-width: 1100px; margin: 0 auto; padding: 16px 16px calc(32px + env(safe-area-inset-bottom)); }
.page { display: grid; gap: 16px; }
.page[hidden] { display: none; }
#page-clock { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); align-items: start; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.card-head h2 { margin: 0; font-size: 1.1rem; }
.actions, .row-buttons { display: flex; gap: 8px; flex-wrap: wrap; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.center { text-align: center; }
.label { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }

.pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg);
  color: var(--muted);
  border: 1px solid var(--border);
}
.pill.live { color: var(--live); border-color: currentColor; }
.pill.live::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.4s infinite;
}
@keyframes pulse { 50% { opacity: 0.25; } }

.badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--info-bg);
  color: var(--info-ink);
  vertical-align: middle;
}
.badge.warn { background: var(--warn-bg); color: var(--warn-ink); }
.badge.ok { background: var(--ok-bg); color: var(--ok-ink); }

.timer {
  font-size: clamp(2.6rem, 11vw, 3.4rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: center;
  letter-spacing: 0.02em;
  margin: 8px 0 0;
}

/* ---------- Buttons ---------- */
button { font: inherit; cursor: pointer; }
button:disabled { cursor: progress; opacity: 0.7; }

.big-btn {
  display: block;
  width: 100%;
  margin: 16px 0 8px;
  padding: 20px;
  border: 0;
  border-radius: var(--radius);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  touch-action: manipulation;
}
.big-btn.go { background: var(--go); }
.big-btn.stop { background: var(--stop); }

.btn {
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-weight: 600;
}
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.danger { color: var(--stop); }
.btn.small { padding: 4px 10px; font-size: 0.85rem; }

/* ---------- Forms ---------- */
.field { display: grid; gap: 4px; margin: 10px 0; }
.field > span { font-size: 0.85rem; font-weight: 600; color: var(--muted); }
input, select {
  font: inherit;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  min-width: 0;
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }

.form-msg { margin: 10px 0 0; padding: 8px 12px; border-radius: 10px; font-size: 0.9rem; }
.form-msg.ok { background: var(--ok-bg); color: var(--ok-ink); }
.form-msg.error { background: var(--warn-bg); color: var(--warn-ink); }
.key-status { margin: 8px 0; }

/* ---------- Stats & summaries ---------- */
.stats, .summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  margin-top: 12px;
}
.stats > div, .summary > div {
  background: var(--bg);
  border-radius: 10px;
  padding: 10px 12px;
}
.stats strong, .summary strong { font-size: 1.25rem; font-variant-numeric: tabular-nums; }
.summary small { display: block; color: var(--muted); font-size: 0.8rem; }
.warn-text { color: var(--warn-ink); }
.summary .warn-text { background: var(--warn-bg); }

.loc { margin-top: 12px; }
.coords { font-size: 0.85rem; font-variant-numeric: tabular-nums; }

.result {
  margin-top: 12px;
  padding: 12px;
  border-radius: 10px;
  background: var(--ok-bg);
}
.result-miles { font-size: 1.8rem; font-weight: 700; color: var(--ok-ink); }
.result-route { display: grid; gap: 8px; margin-top: 4px; }
.result .warn-text { margin-top: 8px; font-size: 0.85rem; }

/* ---------- Filters ---------- */
.filters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.filters .field { margin: 4px 0; }

/* ---------- Tables ---------- */
.list { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 0.92rem; }
.list th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 8px;
  border-bottom: 1px solid var(--border);
}
.list td { padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.row-actions { white-space: nowrap; text-align: right; }
.row-actions .btn + .btn { margin-left: 4px; }
.empty { text-align: center; color: var(--muted); padding: 24px 0; }

@media (max-width: 720px) {
  .filters { grid-template-columns: 1fr 1fr; }
  .filters .field:first-child { grid-column: 1 / -1; }
  .list thead { display: none; }
  .list, .list tbody, .list tr, .list td { display: block; }
  .list tr {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 6px 12px;
    margin-bottom: 10px;
  }
  .list td { border: 0; padding: 4px 0; display: grid; grid-template-columns: 80px 1fr; gap: 8px; }
  .list td::before {
    content: attr(data-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    padding-top: 2px;
  }
  .list td.row-actions { display: flex; justify-content: flex-end; padding-top: 8px; }
  .list td.row-actions::before { content: none; }
}

/* ---------- Banners, dialogs, toast ---------- */
.banner { padding: 12px 14px; border-radius: 10px; margin-bottom: 16px; font-size: 0.92rem; }
.banner.warn { background: var(--warn-bg); color: var(--warn-ink); }
.banner.info { background: var(--info-bg); color: var(--info-ink); }
.banner.info a { color: inherit; font-weight: 600; }

dialog {
  width: min(440px, calc(100vw - 32px));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  padding: 20px;
}
dialog::backdrop { background: rgb(0 0 0 / 0.45); }
dialog h3 { margin: 0 0 8px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--text);
  color: var(--card);
  font-weight: 600;
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.2);
  z-index: 100;
}
.toast.error { background: var(--stop); color: #fff; }