/* Sentio: the floor-heating dashboard. Panels on a quiet plane, charts carry the colour. */
:root {
  color-scheme: light;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --fs-caption: 12px; --fs-body: 14px; --fs-heading: 16px; --fs-title: 30px;
  --fw-medium: 500;
  --gap-xs: 4px; --gap-sm: 8px; --gap-md: 12px; --gap-lg: 16px; --gap-xl: 28px;
  --pad-xs: 4px; --pad-sm: 8px; --pad-md: 12px; --pad-lg: 20px;
  --radius: 10px;

  --bg: #f9f9f7; --panel: #fcfcfb; --line: #e1e0d9; --fg: #0b0b0b; --fg-muted: #64635f; --fg-secondary: #52514e;
  --accent: #2a78d6; --accent-fg: #ffffff;
  --ok: #006300; --warn: #8a5a00; --bad: #d03b3b;
  --chart-grid: #e1e0d9; --chart-axis: #c3c2b7; --chart-ref: #898781;
  --popover: #ffffff; --shadow: 0 4px 16px rgba(0, 0, 0, .08);
  --cell-full: #cde2fb; --cell-part: #fbe6c8; --cell-none: #f0efec;
  --c1: #2a78d6; --c2: #eb6834; --c3: #1baf7a; --c4: #eda100; --c5: #e87ba4; --c6: #008300; --c7: #6250d6; --c8: #e34948;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d0d; --panel: #1a1a19; --line: #2c2c2a; --fg: #f0efec; --fg-muted: #a3a29a; --fg-secondary: #c3c2b7;
    --accent: #3987e5; --accent-fg: #0b0b0b;
    --ok: #0ca30c; --warn: #fab219; --bad: #e66767;
    --chart-grid: #2c2c2a; --chart-axis: #383835; --chart-ref: #898781;
    --popover: #232321; --shadow: 0 6px 20px rgba(0, 0, 0, .5);
    --cell-full: #1c3f6b; --cell-part: #5a4310; --cell-none: #232321;
    --c1: #3987e5; --c2: #d95926; --c3: #199e70; --c4: #c98500; --c5: #d55181; --c6: #008300; --c7: #9085e9; --c8: #e66767;
    color-scheme: dark;
  }
}

html, body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--font-sans); font-size: var(--fs-body); }
.page { max-width: 1200px; margin: 0 auto; padding-block: 28px 48px; padding-left: max(16px, 4vw); padding-right: max(16px, 4vw);
  display: flex; flex-direction: column; gap: var(--gap-xl); }
/* Component display rules (.card, .btn, …) must not undo the hidden attribute. */
[hidden] { display: none !important; }
.page-inner { display: flex; flex-direction: column; gap: var(--gap-xl); }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Header */
.top { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--gap-md); }
.top h1 { margin: 0; font-family: var(--font-serif); font-weight: 400; font-size: var(--fs-title); text-wrap: balance; }
.top .sub { margin: var(--gap-xs) 0 0; color: var(--fg-muted); font-size: var(--fs-caption); }
.nav { display: flex; align-items: center; gap: var(--gap-sm); flex-wrap: wrap; }
.tab { border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 6px 14px; cursor: pointer; }
.tab[aria-selected="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.who { color: var(--fg-muted); font-size: var(--fs-caption); margin-left: var(--gap-sm); }
.link { background: none; border: 0; padding: 0; color: var(--fg-muted); font-size: var(--fs-caption); text-decoration: underline; cursor: pointer; }

/* Period bar */
.period { display: flex; flex-wrap: wrap; align-items: center; gap: var(--gap-sm); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--panel); }
.seg button { border: 0; background: none; padding: 6px 12px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
.period label { display: inline-flex; align-items: center; gap: 6px; color: var(--fg-muted); font-size: var(--fs-caption); }
.period input[type="date"] { border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 5px 8px; }
.btn { border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 6px 12px; cursor: pointer; }
.btn:disabled { opacity: .4; cursor: default; }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

.take { margin: 0; line-height: 1.55; max-width: 72ch; }
.take b { font-weight: 600; font-variant-numeric: tabular-nums; }

/* Tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 10.5rem), 1fr)); gap: var(--gap-md); }
.tile { display: flex; flex-direction: column; gap: var(--gap-xs); min-width: 0; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius); padding: var(--pad-lg); }
.tile .lbl { font-size: var(--fs-caption); color: var(--fg-muted); }
.tile .big { font-family: var(--font-serif); font-size: var(--fs-title); line-height: 1.1; font-variant-numeric: tabular-nums; }
.tile .unit { margin-left: .2em; font-family: var(--font-sans); font-size: var(--fs-body); color: var(--fg-muted); }
.tile .note { font-size: var(--fs-caption); color: var(--fg-muted); font-variant-numeric: tabular-nums; }

/* Cards and charts */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 26rem), 1fr)); gap: var(--gap-md); }
.card { display: flex; flex-direction: column; gap: var(--gap-sm); min-width: 0; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius); padding: var(--pad-lg); }
.card h2 { margin: 0; font-size: var(--fs-heading); font-weight: var(--fw-medium); }
.card .note { margin: 0; font-size: var(--fs-caption); color: var(--fg-muted); max-width: 90ch; }
.legend { display: flex; flex-wrap: wrap; gap: var(--gap-xs) var(--gap-md); font-size: var(--fs-caption); color: var(--fg-muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend button { display: inline-flex; align-items: center; gap: 6px; border: 0; background: none; padding: 2px 6px; margin: -2px -6px;
  border-radius: 6px; color: var(--fg-muted); font-size: var(--fs-caption); cursor: pointer; }
.legend button:hover { color: var(--fg); background: var(--chart-grid); }
.legend button[aria-pressed="false"] { opacity: .45; text-decoration: line-through; }
.zoomarea { cursor: crosshair; touch-action: pan-y; }
.zoomsel { fill: var(--accent); fill-opacity: .14; stroke: var(--accent); stroke-opacity: .6; }
.hint { margin: 0; font-size: var(--fs-caption); color: var(--fg-muted); max-width: 90ch; }
.sw { display: inline-block; flex: none; width: 10px; height: 10px; border-radius: 3px; }
.sw.dash { height: 0; width: 14px; border-radius: 0; border-top: 2px dashed currentColor; }
.chart { position: relative; min-height: 300px; }
.chart.short { min-height: 230px; }
.chart svg { display: block; }
.chart .empty { display: flex; align-items: center; justify-content: center; min-height: inherit; color: var(--fg-muted); font-size: var(--fs-caption); }
.tick { font-size: var(--fs-caption); fill: var(--fg-muted); font-variant-numeric: tabular-nums; }
.endlbl { font-size: var(--fs-caption); fill: var(--fg); font-variant-numeric: tabular-nums; }
.tip { position: absolute; top: 0; left: 0; z-index: 2; pointer-events: none; white-space: nowrap; background: var(--popover);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: var(--pad-xs) var(--pad-sm);
  font-size: var(--fs-caption); font-variant-numeric: tabular-nums; }
.tip .t { margin-bottom: 2px; color: var(--fg-secondary); }
.tip .r { display: flex; align-items: center; gap: 6px; }
.tip .v { margin-left: auto; padding-left: 12px; }
.tip .s { color: var(--fg-secondary); }

/* Tables */
.tablebox { max-height: 24rem; overflow: auto; }
.tablebox.tall { max-height: 70vh; }
.act-bad { color: var(--bad); }
#view-log th, #activity-body td:not(:nth-child(3)):not(:nth-child(4)) { white-space: nowrap; }
table.data { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
table.data th { position: sticky; top: 0; text-align: left; background: var(--panel); color: var(--fg-muted);
  font-size: var(--fs-caption); font-weight: var(--fw-medium); padding: var(--pad-xs) var(--pad-sm); border-bottom: 1px solid var(--line); }
table.data td { padding: var(--pad-xs) var(--pad-sm); border-bottom: 1px solid var(--line); }
table.data .num { text-align: right; }

/* Import */
.drop { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--gap-sm); text-align: center;
  min-height: 160px; border: 2px dashed var(--line); border-radius: var(--radius); padding: var(--pad-lg); color: var(--fg-muted); }
.drop.over { border-color: var(--accent); color: var(--fg); }
.progress { height: 6px; border-radius: 3px; background: var(--chart-grid); overflow: hidden; }
.progress > i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.results { display: flex; flex-direction: column; gap: var(--gap-xs); margin: 0; padding: 0; list-style: none; }
.results li { display: flex; gap: var(--gap-sm); align-items: baseline; }
.results .dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.results .dot.bad { background: var(--bad); }
.days { display: grid; grid-template-columns: repeat(auto-fill, minmax(4.6rem, 1fr)); gap: var(--gap-xs); }
.day { border-radius: 6px; padding: 6px 8px; background: var(--cell-none); font-size: var(--fs-caption); font-variant-numeric: tabular-nums; }
.day.full { background: var(--cell-full); }
.day.part { background: var(--cell-part); }
.day b { display: block; font-weight: var(--fw-medium); }
.day span { color: var(--fg-secondary); }
.keyline { display: flex; flex-wrap: wrap; gap: var(--gap-md); font-size: var(--fs-caption); color: var(--fg-muted); }
.keyline span { display: inline-flex; align-items: center; gap: 6px; }
.keyline i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.keyline .full { background: var(--cell-full); } .keyline .part { background: var(--cell-part); } .keyline .none { background: var(--cell-none); }

.error { color: var(--bad); }
.muted { color: var(--fg-muted); }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding-left: max(16px, 4vw); padding-right: max(16px, 4vw); }
.login form { width: min(100%, 22rem); display: flex; flex-direction: column; gap: var(--gap-md); background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.login h1 { margin: 0 0 var(--gap-sm); font-family: var(--font-serif); font-weight: 400; font-size: 26px; }
.login label { display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-caption); color: var(--fg-muted); }
.login input { border: 1px solid var(--line); background: var(--bg); border-radius: 8px; padding: 9px 10px; font-size: var(--fs-body); }