/* Thương hiệu Wash Bar: đỏ – đen – trắng, font Chakra Petch */
@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:wght@400;500;600;700&display=swap');
:root {
  --bg: #0A0A0A; --card: #141418; --text: #FFFFFF; --muted: #9B9BA6; --line: #26262E;
  --accent: #E1101A; --accent-ink: #FFFFFF; --accent-soft: rgba(225,16,26,.14); --accent-text: #FF2630;
  --ok: #2FBF71; --ok-bg: rgba(47,191,113,.14); --bad: #FF2630; --bad-bg: rgba(225,16,26,.14); --warn: #FFB020; --warn-bg: rgba(255,176,32,.13);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 16px/1.5 'Chakra Petch', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); -webkit-text-size-adjust: 100%; }
a { color: var(--accent-text); }
.wrap { max-width: 1000px; margin: 0 auto; padding: 16px; }
.narrow { max-width: 440px; }

header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; display: flex; align-items: center; gap: 8px; }
.brand img { width: 26px; height: 26px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin: 12px 0; }
h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 17px; margin: 0 0 12px; }
label { display: block; font-size: 14px; color: var(--muted); margin: 12px 0 4px; }
input, select, textarea { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
textarea { min-height: 90px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 14px; }
input[type=checkbox] { width: auto; }

button, .btn { font: inherit; font-weight: 600; font-size: 15px; padding: 9px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; text-decoration: none; display: inline-block; line-height: 1.3; }
button:hover, .btn:hover { border-color: var(--muted); }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.danger { color: var(--bad); }
button.small { font-size: 13px; padding: 5px 10px; border-radius: 8px; }
button:disabled { opacity: .55; cursor: default; }
button.big { width: 100%; padding: 26px 16px; font-size: 24px; border-radius: 18px; letter-spacing: .3px; }
button.big.out { background: #FFFFFF; border-color: #FFFFFF; color: #0A0A0A; }
button.link { border: 0; background: none; padding: 0; color: var(--accent-text); font-weight: 500; }

.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row > .grow { flex: 1 1 180px; }
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 999px; font-size: 13px; font-weight: 500; background: var(--bg); border: 1px solid var(--line); color: var(--text); }
button.chip { cursor: pointer; }
.chip.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.chip.bad { background: var(--bad-bg); color: var(--bad); border-color: transparent; }
.chip.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.chip.accent { background: var(--accent-soft); color: var(--accent-text); border-color: transparent; }
.muted { color: var(--muted); font-size: 14px; }
.msg { padding: 10px 12px; border-radius: 10px; margin: 10px 0; font-size: 15px; }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
.msg.bad { background: var(--bad-bg); color: var(--bad); }
.msg.warn { background: var(--warn-bg); color: var(--warn); }

.tablewrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: 13px; white-space: nowrap; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--bg); }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.detail { background: var(--bg); border-radius: 10px; padding: 8px 10px; }

.tabs { display: flex; gap: 2px; overflow-x: auto; padding: 0 12px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 55px; z-index: 4; }
.tabs button { border: 0; border-bottom: 3px solid transparent; border-radius: 0; background: none; padding: 12px 10px; white-space: nowrap; color: var(--muted); font-weight: 600; }
.tabs button.on { color: var(--text); border-bottom-color: var(--accent); }

.modal { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: none; align-items: center; justify-content: center; padding: 16px; z-index: 20; }
.modal.on { display: flex; }
.modal .box { background: var(--card); border-radius: 16px; padding: 18px; max-width: 440px; width: 100%; max-height: 92vh; overflow: auto; }
.modal img { width: 100%; border-radius: 12px; display: block; background: var(--bg); }

.status { font-size: 22px; font-weight: 700; margin: 4px 0 2px; }
.clock { font-size: 40px; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: 1px; line-height: 1.1; }
.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 8px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.list li:last-child { border-bottom: 0; }
.hidden { display: none !important; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 8px; }
.stat { background: var(--bg); border-radius: 12px; padding: 10px 12px; }
.stat b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.loc { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }

.offgrid th:not(:first-child), .offgrid td:not(:first-child) { min-width: 40px; width: 40px; text-align: center; }
.offgrid .chip { font-size: 11px; }