/* HotTube temp record – barvy jen přes proměnné, světlé i tmavé téma, systémové fonty */
:root {
  --bg: #f3f5f7; --panel: #ffffff; --fg: #17212b; --muted: #5b6876; --line: #d9dfe5;
  --water: #2f6f9f; --heat: #c4600e; --pause: rgba(91, 104, 118, .12);
  --ok: #2e7d4f; --warn: #b26a00; --bad: #b3261e;
  --ok-bg: #e3f1e8; --warn-bg: #fbefd9; --bad-bg: #f8e1df;
  --on-accent: #ffffff;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11171d; --panel: #19212a; --fg: #e6ebf0; --muted: #97a4b2; --line: #2c3743;
    --water: #6fb0e0; --heat: #f0954a; --pause: rgba(151, 164, 178, .14);
    --ok: #6fcf94; --warn: #f2b34c; --bad: #f08a80;
    --ok-bg: #183424; --warn-bg: #3a2c12; --bad-bg: #3d1c1a; --on-accent: #11171d; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #11171d; --panel: #19212a; --fg: #e6ebf0; --muted: #97a4b2; --line: #2c3743;
  --water: #6fb0e0; --heat: #f0954a; --pause: rgba(151, 164, 178, .14);
  --ok: #6fcf94; --warn: #f2b34c; --bad: #f08a80;
  --ok-bg: #183424; --warn-bg: #3a2c12; --bad-bg: #3d1c1a; --on-accent: #11171d; color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.45 var(--sans); }
.wrap {
  width: 100%; margin: 0 auto; padding: 14px clamp(12px, 2.5vw, 40px) 48px;
  padding-left: max(clamp(12px, 2.5vw, 40px), env(safe-area-inset-left, 0px)); padding-right: max(clamp(12px, 2.5vw, 40px), env(safe-area-inset-right, 0px));
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; align-items: start;
}
.wrap > header, .wrap > .alert, .wrap > .full { grid-column: 1 / -1; }
@media (min-width: 760px) { .wrap { grid-template-columns: repeat(2, minmax(0, 1fr)); } body { font-size: 17px; } }
@media (min-width: 1280px) { .wrap { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1900px) { .wrap { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.small { font-size: .86rem; color: var(--muted); }
[hidden] { display: none !important; }
a { color: var(--water); }

/* hlavička */
header { display: flex; flex-direction: column; gap: 8px; }
.top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; justify-content: space-between; }
h1 { font-size: 1.3rem; font-weight: 650; margin: 0; }
.sync { font-size: .84rem; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); color: var(--muted); }
.sync.ok { color: var(--ok); background: var(--ok-bg); border-color: transparent; }
.sync.pending, .sync.readonly, .sync.saving, .sync.offline { color: var(--warn); background: var(--warn-bg); border-color: transparent; }
.sync.error { color: var(--bad); background: var(--bad-bg); border-color: transparent; }
.chip { font-size: .84rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--ok-bg); color: var(--ok); }
.chip.cool { background: var(--bad-bg); color: var(--water); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* ovládací prvky ≥ 44 px */
button, .btn { font: inherit; font-size: .95rem; min-height: 44px; padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel); color: var(--fg); cursor: pointer; }
button.primary { background: var(--heat); border-color: var(--heat); color: var(--on-accent); font-weight: 650; }
button.danger { background: var(--bad); border-color: var(--bad); color: var(--on-accent); font-weight: 650; }
button.small-btn { min-height: 44px; }
button:disabled { opacity: .5; cursor: default; }
input, select, textarea { font: inherit; font-family: var(--mono); min-height: 44px; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; max-width: 100%; }
input[type=checkbox] { min-height: 0; width: 22px; height: 22px; accent-color: var(--water); }
:is(button, input, select, textarea, summary, a):focus-visible { outline: 3px solid var(--water); outline-offset: 2px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: .84rem; color: var(--muted); }
label.chk { flex-direction: row; align-items: center; gap: 8px; font-size: .95rem; color: var(--fg); min-height: 44px; }
.w5 { width: 6.5em; } .w7 { width: 8.5em; }

/* varování + dlaždice */
.alert { border-radius: 10px; padding: 10px 14px; border: 1px solid transparent; }
.alert.bad { background: var(--bad-bg); color: var(--bad); border-color: var(--bad); }
.alert.warn { background: var(--warn-bg); color: var(--warn); border-color: var(--warn); }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
@media (min-width: 760px) { .tile .v { font-size: 1.9rem; } .tile .l { font-size: .8rem; } .tile .s { font-size: .9rem; } .tile { padding: 14px 16px; } .tiles { gap: 12px; } }
.tile { background: var(--panel); border: 1px solid var(--line); border-left-width: 5px; border-radius: 10px; padding: 10px 10px 10px 12px; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.tile .l { font-size: .74rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.tile .v { font: 600 1.35rem/1.15 var(--mono); overflow-wrap: anywhere; }
.tile .s { font-size: .78rem; color: var(--muted); }
.tile.ok { border-left-color: var(--ok); background: var(--ok-bg); } .tile.ok .v { color: var(--ok); }
.tile.warn { border-left-color: var(--warn); background: var(--warn-bg); } .tile.warn .v { color: var(--warn); }
.tile.bad { border-left-color: var(--bad); background: var(--bad-bg); } .tile.bad .v { color: var(--bad); }

/* sekce */
details.sec { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
details.sec > summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 0 14px; min-height: 48px; }
details.sec > summary::-webkit-details-marker { display: none; }
details.sec > summary h2 { margin: 0; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
details.sec > summary .sum { font-size: .84rem; color: var(--muted); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
details.sec > summary::after { content: "▾"; color: var(--muted); margin-left: 4px; }
details.sec[open] > summary::after { content: "▴"; }
.body { padding: 4px 14px 14px; display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.tag { font-size: .8rem; font-weight: 650; padding: 2px 9px; border-radius: 999px; }
.tag.ok { background: var(--ok-bg); color: var(--ok); } .tag.warn { background: var(--warn-bg); color: var(--warn); } .tag.bad { background: var(--bad-bg); color: var(--bad); }
.fb { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.seg button { border: 0; border-radius: 0; background: transparent; padding: 8px 12px; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--water); color: var(--on-accent); }

/* přikládání */
.stoke { border: 1px solid var(--line); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 6px; }
.stoke.due { border-color: var(--bad); background: var(--bad-bg); }
.stoke .big { font: 650 1.5rem/1.2 var(--mono); }

/* graf */
#chart { width: 100%; min-height: 240px; }
#chart svg { display: block; width: 100%; height: auto; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: .8rem; color: var(--muted); }
.legend i { display: inline-block; width: 14px; height: 3px; vertical-align: middle; margin-right: 5px; }

table { border-collapse: collapse; width: 100%; font-size: .9rem; }
td, th { padding: 6px 4px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { font-weight: 500; color: var(--muted); font-size: .78rem; }
td.r { text-align: right; }
.drop { border: 1.5px dashed var(--line); border-radius: 10px; padding: 16px; text-align: center; color: var(--muted); }
.drop.over { border-color: var(--water); color: var(--water); }
.confirm { border: 1px solid var(--bad); background: var(--bad-bg); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.notes > div + div { margin-top: 6px; }
.msg { font-size: .88rem; }
.msg.bad { color: var(--bad); } .msg.ok { color: var(--ok); }
code { font-family: var(--mono); font-size: .9em; background: var(--bg); padding: 1px 5px; border-radius: 5px; }
@media (max-width: 420px) { .tile { padding: 8px 6px 8px 10px; } .tile .l { font-size: .66rem; letter-spacing: 0; overflow-wrap: anywhere; } .tile .v { font-size: 1.1rem; } .tile .s { font-size: .72rem; } .tiles { gap: 6px; } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

/* legenda grafu */
.legend i.lg-water { background: var(--water); }
.legend i.lg-heat { background: var(--heat); height: 8px; width: 8px; border-radius: 50%; }
.legend i.dash { background: none; border-top: 2px dashed var(--water); height: 0; }

/* ovládání grafu */
details.shows { position: relative; align-self: flex-end; }
details.shows > summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
details.shows > summary::-webkit-details-marker { display: none; }
details.shows > summary::after { content: "▾"; color: var(--muted); }
details.shows[open] > summary::after { content: "▴"; }
.showbox { position: absolute; z-index: 5; top: calc(100% + 4px); left: 0; min-width: 14rem; max-width: calc(100vw - 32px); padding: 8px 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 6px 20px rgba(0, 0, 0, .18); display: flex; flex-direction: column; }
#chart svg { max-height: 70vh; }

/* hover tooltip */
.chartwrap { position: relative; }
#chart svg { touch-action: pan-y; cursor: crosshair; }
.tip { position: absolute; z-index: 6; pointer-events: none; background: var(--panel); color: var(--fg); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font-size: .84rem; line-height: 1.35; box-shadow: 0 6px 20px rgba(0, 0, 0, .22); max-width: min(20rem, 90%); }
.tip div + div { margin-top: 2px; }