:root {
  --bg: #0f1115;
  --card: #171a21;
  --card-2: #1d212a;
  --text: #e8eaf0;
  --muted: #9aa3b2;
  --border: #2a2f3a;
  --btn: #2b5cff;
  --btn-text: #fff;
  --input: #0f1218;
  --danger: #ff4d4f;
  --ok: #20c997;
  --warn: #f2b705;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

[data-theme="light"] {
  --bg: #f5f6fa;
  --card: #ffffff;
  --card-2: #f2f4f9;
  --text: #101423;
  --muted: #5b6473;
  --border: #dde1ea;
  --btn: #2b5cff;
  --btn-text: #fff;
  --input: #ffffff;
  --danger: #e5484d;
  --ok: #12A594;
  --warn: #b8860b;
  --shadow: 0 6px 20px rgba(16, 20, 35, 0.07);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: 1320px; margin: 0 auto; padding: 18px 20px 60px; }

/* ---------------------------------------------------------------- topbar */

.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 20px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
  flex-wrap: wrap;
}

.brand { display: flex; flex-direction: column; margin-right: auto; }
.brand b { font-size: 17px; letter-spacing: -0.2px; }
.brand span { color: var(--muted); font-size: 12px; }

.nav { display: flex; gap: 4px; }

.nav a {
  padding: 8px 14px;
  border-radius: 9px;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  border: 1px solid transparent;
}

.nav a:hover { background: var(--card-2); color: var(--text); }
.nav a.active { background: var(--btn); color: var(--btn-text); }

.clock { text-align: right; min-width: 96px; font-variant-numeric: tabular-nums; }
.clock .t { font-size: 17px; font-weight: 700; }
.clock .d { font-size: 11px; color: var(--muted); }

/* ---------------------------------------------------------------- cards */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card > h2 { font-size: 16px; margin: 0 0 14px; }
.card > h2.with-sub { margin-bottom: 4px; }
.card .sub { color: var(--muted); font-size: 12px; margin-bottom: 14px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.split { display: grid; grid-template-columns: 300px 1fr; gap: 16px; align-items: start; }

@media (max-width: 1000px) {
  .grid-2, .grid-3, .split { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- forms */

label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }

input, select {
  width: 100%;
  background: var(--input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 9px 11px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

input:focus, select:focus { border-color: var(--btn); }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.field { display: flex; flex-direction: column; min-width: 150px; flex: 1; }
.field.narrow { max-width: 170px; }

button {
  border: 1px solid var(--border);
  background: var(--card-2);
  color: var(--text);
  border-radius: 9px;
  padding: 9px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  white-space: nowrap;
}

button:hover { border-color: var(--muted); }
button.primary { background: var(--btn); border-color: var(--btn); color: var(--btn-text); }
button.primary:hover { filter: brightness(1.08); }
button.danger { border-color: var(--danger); color: var(--danger); background: transparent; }
button.ok { border-color: var(--ok); color: var(--ok); background: transparent; }
button.ghost { background: transparent; }
button.icon { padding: 7px 10px; }
button:disabled { opacity: 0.5; cursor: default; }

.check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); }
.check input { width: auto; }

/* ---------------------------------------------------------------- badges */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.badge.present { border-color: var(--ok); color: var(--ok); }
.badge.absent { border-color: var(--border); color: var(--muted); }
.badge.station_offline { border-color: var(--danger); color: var(--danger); }
.badge.unknown, .badge.sensor_error { border-color: var(--warn); color: var(--warn); }
.badge.online { border-color: var(--ok); color: var(--ok); }
.badge.offline { border-color: var(--danger); color: var(--danger); }
.badge.plain::before { display: none; }

/* ---------------------------------------------------------------- tables */

.table-wrap { overflow-x: auto; margin: 0 -18px -18px; padding: 0 18px 4px; }

table { width: 100%; border-collapse: collapse; }

th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
  font-weight: 700;
  padding: 0 12px 10px 0;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 11px 12px 11px 0;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--card-2); }

td.num, th.num { text-align: right; padding-right: 18px; font-variant-numeric: tabular-nums; }
.mono { font-variant-numeric: tabular-nums; }
.name { font-weight: 600; }
.dim { color: var(--muted); font-size: 12px; }
.empty { padding: 34px 0; text-align: center; color: var(--muted); }

/* ---------------------------------------------------------------- stats */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 760px) { .stats { grid-template-columns: 1fr 1fr; } }

.stat {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 13px 14px;
}

.stat .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.4px; }
.stat .v { font-size: 21px; font-weight: 750; margin-top: 3px; font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- calendar */

.cal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.cal-title { font-weight: 700; font-size: 14px; text-transform: capitalize; }

.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }

.cal-dow {
  text-align: center;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  padding-bottom: 4px;
  font-weight: 700;
}

.cal-day {
  position: relative;
  aspect-ratio: 1;
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}

.cal-day:hover { border-color: var(--btn); }
.cal-day.blank { border: none; cursor: default; background: none; }
.cal-day.blank:hover { border: none; }
.cal-day.has-data { background: color-mix(in srgb, var(--ok) 16%, transparent); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.cal-day.future { opacity: 0.32; cursor: default; }
.cal-day.weekend { color: var(--muted); }
.cal-day.selected { background: var(--btn); border-color: var(--btn); color: var(--btn-text); }
.cal-day.today::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
}

.cal-legend { display: flex; gap: 14px; margin-top: 12px; font-size: 11px; color: var(--muted); }
.cal-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

/* ---------------------------------------------------------------- timeline */

.timeline {
  position: relative;
  height: 42px;
  border-radius: 9px;
  background: var(--input);
  border: 1px solid var(--border);
  overflow: hidden;
}

.timeline .seg { position: absolute; top: 0; bottom: 0; background: var(--ok); opacity: 0.85; }
.timeline .seg.manual { background: var(--btn); }
.timeline .hour { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--border); }
.ticks { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); margin-top: 5px; }

/* ---------------------------------------------------------------- login */

.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.login-box {
  width: 100%;
  max-width: 340px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.login-box h1 { font-size: 19px; margin: 0 0 4px; }
.login-box .sub { color: var(--muted); font-size: 12px; margin-bottom: 20px; }
.login-box label { margin-top: 12px; }
.login-box button { width: 100%; margin-top: 18px; padding: 11px; font-size: 14px; }
.login-err { color: var(--danger); font-size: 12px; margin-top: 10px; min-height: 16px; }

/* ---------------------------------------------------------------- misc */

.toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 18px;
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  transition: transform 0.22s, opacity 0.22s;
  z-index: 200;
  pointer-events: none;
}

.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.err { border-color: var(--danger); color: var(--danger); }

.hidden { display: none !important; }
code { background: var(--input); padding: 2px 6px; border-radius: 5px; font-size: 12px; }
hr.sep { border: none; border-top: 1px solid var(--border); margin: 18px 0; }
.log-line { font-size: 12px; color: var(--muted); padding: 6px 0; border-top: 1px solid var(--border); }
.log-line:first-child { border-top: none; }
.log-line b { color: var(--text); font-weight: 600; }
.list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.list .item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px;
}