:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1f24;
  --muted: #6b7280;
  --line: #e3e5e9;
  --temp: #e8590c;
  --temp-band: rgba(232, 89, 12, 0.13);
  --rh: #1c7ed6;
  --ok: #2f9e44;
  --bad: #c92a2a;
  --btn: #eceef2;
  --btn-on: #1c1f24;
  --btn-on-text: #ffffff;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --card: #1a1d23;
    --text: #e8eaed;
    --muted: #8b929c;
    --line: #2a2e36;
    --temp: #ff8a3d;
    --temp-band: rgba(255, 138, 61, 0.15);
    --rh: #4dabf7;
    --ok: #51cf66;
    --bad: #ff6b6b;
    --btn: #262a31;
    --btn-on: #e8eaed;
    --btn-on-text: #111317;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.top {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}

.brand { display: flex; align-items: baseline; gap: 12px; }
h1 { font-size: 20px; margin: 0; font-weight: 650; letter-spacing: -0.01em; }
.conn { color: var(--muted); font-size: 12px; }
.conn.live { color: var(--ok); }
.conn.down { color: var(--bad); }

.controls { display: flex; gap: 10px; }
.seg { display: inline-flex; background: var(--btn); border-radius: 8px; padding: 2px; }
.seg button { border: 0; background: transparent; color: var(--text); padding: 5px 11px; border-radius: 6px; cursor: pointer; font: inherit; }
.seg button.on { background: var(--btn-on); color: var(--btn-on-text); }

.rooms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 16px;
  align-items: start;
  padding: 0 24px 24px;
}

.room {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.room-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.name { margin: 0 0 2px; font-size: 16px; font-weight: 600; }
.status { color: var(--muted); font-size: 12px; display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.room.offline .dot { background: var(--bad); }
.room.offline .now { opacity: 0.45; }
.room.paused .temp { opacity: 0.45; }
.room.paused .rh { color: var(--muted); font-size: 12px; }

.now { text-align: right; }
.temp { display: block; font-size: 34px; font-weight: 600; line-height: 1; color: var(--temp); font-variant-numeric: tabular-nums; }
.rh { display: block; margin-top: 4px; color: var(--rh); font-weight: 500; font-variant-numeric: tabular-nums; }

.chart { position: relative; height: 150px; }
.chart svg { width: 100%; height: 100%; display: block; overflow: visible; }
.chart text { fill: var(--muted); font-size: 10px; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .t-line { fill: none; stroke: var(--temp); stroke-width: 2; stroke-linejoin: round; }
.chart .t-band { fill: var(--temp-band); stroke: none; }
.chart .h-line { fill: none; stroke: var(--rh); stroke-width: 1.5; stroke-dasharray: 4 3; opacity: 0.85; }
.chart .cross { stroke: var(--muted); stroke-width: 1; }
.chart .nodata { fill: var(--muted); font-size: 12px; }

.tip {
  position: absolute; top: 0; pointer-events: none;
  background: var(--card); border: 1px solid var(--line); border-radius: 6px;
  padding: 4px 8px; font-size: 12px; white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0,0,0,.12);
}
.tip b { color: var(--temp); font-weight: 600; }
.tip i { color: var(--rh); font-style: normal; }

.media { position: relative; background: #000; border-radius: 8px; overflow: hidden; aspect-ratio: 4 / 3; }
.cam { width: 100%; height: 100%; object-fit: contain; display: block; }
.cam-msg { position: absolute; inset: 0; display: grid; place-items: center; color: #aaa; font-size: 13px; }
.media.playing .cam-msg { display: none; }

.room-foot { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.buttons { display: flex; gap: 8px; align-items: center; }
.buttons button {
  border: 1px solid var(--line); background: var(--btn); color: var(--text);
  padding: 5px 12px; border-radius: 7px; cursor: pointer; font: inherit;
}
.buttons button.on { background: var(--btn-on); color: var(--btn-on-text); border-color: var(--btn-on); }
.vol { width: 90px; }
.meta { color: var(--muted); font-size: 11px; }

.empty { text-align: center; color: var(--muted); padding: 60px 24px; }

@media (max-width: 440px) {
  .rooms { grid-template-columns: 1fr; padding: 0 12px 12px; }
  .top { padding: 14px 12px; }
}

/* ---------------------------------------------------------------- sign-in */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: 100%; max-width: 340px;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 24px; display: flex; flex-direction: column; gap: 10px;
}
.login-card h1 { margin-bottom: 8px; }
.login-card label { color: var(--muted); font-size: 13px; }
.login-card input {
  font: inherit; font-size: 16px; /* 16px stops iOS zooming in */
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text);
}
.login-card button {
  font: inherit; font-weight: 600; padding: 10px; border-radius: 8px; border: 0; cursor: pointer;
  background: var(--btn-on); color: var(--btn-on-text);
}
.login-card button:disabled { opacity: 0.6; cursor: default; }
.login-msg { color: var(--bad); min-height: 1.4em; margin: 0; font-size: 13px; }

.signout {
  border: 1px solid var(--line); background: transparent; color: var(--muted);
  padding: 5px 11px; border-radius: 8px; cursor: pointer; font: inherit;
}

.foot { order: 99; text-align: center; color: var(--muted); font-size: 11px; padding: 0 24px 20px; }