:root {
  --bg: #0f1813;
  --surface: #16241c;
  --surface-2: #1e3027;
  --border: #284a39;
  --text: #e6efe9;
  --muted: #8aa39a;
  --primary: #2e9a5b;
  --primary-dim: #226e42;
  --danger: #d24a4a;
  --warn: #f1b13b;
  --ok: #41c47b;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; }
body {
  font: 15px/1.4 -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(180deg, var(--bg) 0%, #08110a 100%);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
.container { max-width: 720px; margin: 0 auto; padding: 12px; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: rgba(0,0,0,.25);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
}
.brand { font-weight: 700; margin-right: auto; display: flex; gap: 6px; align-items: center; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tabs a {
  padding: 6px 10px; border-radius: 8px; color: var(--muted);
  font-size: 14px;
}
.tabs a.active { color: var(--text); background: var(--surface-2); }
.logout button {
  background: transparent; border: 1px solid var(--border);
  color: var(--muted); width: 36px; height: 36px; border-radius: 50%;
  cursor: pointer;
}
.logout { margin-left: 8px; }

/* Cards */
.cards { display: grid; grid-template-columns: 1fr; gap: 14px; padding-top: 4px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 10px; font-size: 16px; color: var(--text); }

/* Forms */
label { display: block; margin: 8px 0; color: var(--muted); font-size: 13px; }
input[type=text], input[type=password], input[type=number], input[type=time], select {
  width: 100%; padding: 10px 12px; margin-top: 4px;
  background: #0c1611; border: 1px solid var(--border);
  border-radius: 8px; color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--primary); }
button {
  cursor: pointer; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface-2); color: var(--text); font-weight: 600;
  min-height: 44px;
}
button.primary { background: var(--primary); border-color: var(--primary-dim); color: #fff; }
button.danger { background: var(--danger); border-color: #8c2727; color: #fff; }
button.ghost { background: transparent; }
button.big { flex: 1; font-size: 16px; padding: 16px; }
.row { display: flex; align-items: center; }
.row.gap > * + * { margin-left: 8px; }
.row.gap { flex-wrap: wrap; gap: 8px; }
.form-grid { display: grid; grid-template-columns: 1fr; gap: 4px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }
.error {
  background: rgba(210,74,74,.15); border: 1px solid var(--danger);
  color: #fbd1d1; padding: 10px; border-radius: 8px; margin: 10px 0;
}

/* Login */
.login-card { max-width: 380px; margin: 60px auto; padding: 28px; background: var(--surface);
  border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); }
.login-card h1 { margin: 0; font-size: 28px; }
.login-card p { margin: 4px 0 18px; }

/* Status */
.status-row { display: flex; align-items: center; gap: 10px; margin: 4px 0; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: #555; box-shadow: 0 0 0 3px rgba(0,0,0,.3); flex: none; }
.dot.online { background: var(--ok); }
.dot.offline { background: #777; }
.dot.alert { background: var(--danger); }
.dot.pump.on { background: var(--ok); animation: pulse 1.4s infinite; }
.dot.pump.off { background: #555; }
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(65,196,123,.6); }
  50% { box-shadow: 0 0 0 8px rgba(65,196,123,0); }
}

/* Pressure gauge */
.gauge { padding: 6px 0; }
.pressure-value { font-size: 44px; font-weight: 700; line-height: 1; text-align: center; }
.pressure-value small { font-size: 14px; color: var(--muted); margin-left: 4px; font-weight: 500; }
.gauge-bar {
  position: relative;
  height: 18px; background: linear-gradient(90deg,#1f3327,#314f3d);
  border-radius: 12px; margin: 12px 0 6px; overflow: hidden;
  border: 1px solid var(--border);
}
.gauge-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--ok), var(--warn) 70%, var(--danger)); transition: width .3s; }
.gauge-marker { position: absolute; top: -2px; height: 22px; width: 2px; background: rgba(255,255,255,.5); }
.gauge-marker.high { background: var(--warn); }
.gauge-marker.stop { background: var(--danger); }
.gauge-legend { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.alarm { margin-top: 10px; background: rgba(210,74,74,.15); border: 1px solid var(--danger); color: #fbd1d1; padding: 8px 10px; border-radius: 8px; font-size: 14px; }

/* Events */
.events { list-style: none; padding: 0; margin: 0; max-height: 360px; overflow: auto; }
.events li { padding: 8px 0; border-bottom: 1px solid var(--border); display: flex; gap: 10px; align-items: baseline; }
.events li:last-child { border-bottom: none; }
.events .ts { color: var(--muted); font-size: 12px; flex: none; width: 110px; font-variant-numeric: tabular-nums; }
.events .badge { padding: 1px 8px; border-radius: 999px; background: var(--surface-2); font-size: 12px; flex: none; }
.events .badge.alarm { background: rgba(210,74,74,.25); color: #ffb9b9; }
.events .badge.ok { background: rgba(65,196,123,.2); color: #b3f5cd; }
.events .badge.cmd { background: rgba(241,177,59,.18); color: #f6dba0; }

/* Schedules */
.days { display: flex; gap: 6px; padding: 6px 0; border: 0; }
.days legend { color: var(--muted); font-size: 13px; margin-bottom: 4px; }
.days label { flex: 1; text-align: center; padding: 0; margin: 0; color: var(--muted); }
.days label input { display: none; }
.days label span {
  display: block; padding: 10px 0; border-radius: 8px;
  background: #0c1611; border: 1px solid var(--border);
}
.days label input:checked + span { background: var(--primary); color: white; border-color: var(--primary-dim); }

.sched-list { list-style: none; padding: 0; margin: 0; }
.sched-list li { padding: 10px; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; background: var(--surface-2); }
.sched-list .head { display: flex; align-items: center; gap: 8px; }
.sched-list .head strong { flex: 1; }
.sched-list .meta { color: var(--muted); font-size: 13px; margin-top: 4px; }
.sched-list .actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.sched-list button { padding: 6px 10px; min-height: 32px; font-size: 13px; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(60px);
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 10px 16px; border-radius: 30px; max-width: 90%;
  transition: transform .25s, opacity .25s; opacity: 0; pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.err { background: var(--danger); color: #fff; border-color: #7a2222; }
.toast.ok { background: var(--primary); color: #fff; border-color: var(--primary-dim); }

@media (min-width: 720px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .card.gauge-card, .card.status-card, .card:has(#events-list), .card:has(#sched-list), .card:has(#press-chart) { grid-column: 1 / -1; }
}