/* ============================================================
   Konfigurátor nádrží — vzhled
   Převzato z vizualizéru dlažby (Dlazba/style.css), aby obě aplikace
   vypadaly stejně: firemní styl PREFA BRNO, červená #ed1c24, písmo
   Titillium Web, panel s kroky vlevo, tmavá pracovní plocha vpravo.
   Co je navíc jen pro nádrže, je dole v oddílu NÁDRŽE.
   ============================================================ */

:root {
  --pf-cervena:   #ed1c24;
  --pf-cervena-t: #c2141b;
  --pf-vinova:    #920c0d;
  --pf-zelena:    #00a651;
  --pf-modra:     #006bb3;
  --pf-oranzova:  #ef7f01;   /* divize Nádrže na prefa.cz */
  --pf-seda:      #636363;

  --ground:      #eeeeee;
  --surface:     #ffffff;
  --surface-2:   #f2f2f2;
  --line:        #e0e0e0;
  --line-strong: #c8c8c8;

  --ink:         #262626;
  --ink-2:       #565656;
  --ink-3:       #8c8c8c;

  --accent:      #e0181f;
  --accent-hi:   var(--pf-cervena-t);
  --accent-ink:  #ffffff;
  --accent-soft: #fdeced;

  --danger:      #920c0d;
  --danger-soft: #f7e6e6;
  --good:        var(--pf-zelena);

  --stage-bg:    #2b2b2b;
  --stage-bg-2:  #1c1c1c;

  --radius:   4px;
  --radius-s: 3px;
  --shadow:   0 1px 2px rgba(0, 0, 0, .06), 0 6px 18px rgba(0, 0, 0, .07);

  --font-ui:   "Titillium Web", "Arial", system-ui, sans-serif;
  --font-body: "Titillium Web", "Arial", system-ui, sans-serif;

  --panel-w: 320px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:      #161616;
    --surface:     #1f1f1f;
    --surface-2:   #2a2a2a;
    --line:        #343434;
    --line-strong: #4a4a4a;
    --ink:         #ededed;
    --ink-2:       #b4b4b4;
    --ink-3:       #8a8a8a;
    --accent:      #ff3b42;
    --accent-hi:   #ff5c62;
    --accent-ink:  #220607;
    --accent-soft: #341315;
    --danger:      #ff7a72;
    --danger-soft: #3a1c1a;
    --good:        #35c47c;
    --stage-bg:    #141414;
    --stage-bg-2:  #0c0c0c;
    --shadow:      0 1px 2px rgba(0, 0, 0, .5), 0 8px 22px rgba(0, 0, 0, .4);
  }
}
:root[data-theme="dark"] {
  --ground: #161616; --surface: #1f1f1f; --surface-2: #2a2a2a; --line: #343434; --line-strong: #4a4a4a;
  --ink: #ededed; --ink-2: #b4b4b4; --ink-3: #8a8a8a;
  --accent: #ff3b42; --accent-hi: #ff5c62; --accent-ink: #220607; --accent-soft: #341315;
  --danger: #ff7a72; --danger-soft: #3a1c1a; --good: #35c47c;
  --stage-bg: #141414; --stage-bg-2: #0c0c0c;
  --shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 8px 22px rgba(0, 0, 0, .4);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
h1, h2, h3 { font-family: var(--font-ui); font-weight: 600; margin: 0; text-wrap: balance; }
:where(button, label, input, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent-hi);
  outline-offset: 2px;
}

/* ---------------- firemní hlavička PREFA ---------------- */

.pf-top {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 5px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.pf-logo { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--pf-cervena); flex: none; }
.pf-logo-mark { width: 31px; height: 21px; flex: none; fill: currentColor; }
.pf-logo-mark .pf-lo-side { opacity: .62; }
.pf-logo-text { display: block; line-height: 1.05; }
.pf-logo-text b { display: block; font-size: 16px; font-weight: 700; letter-spacing: .05em; }
.pf-logo-text i { display: block; font-style: normal; font-size: 8px; font-weight: 400; letter-spacing: .01em; margin-top: 1px; }
.top-actions { display: flex; gap: 8px; flex: none; flex-wrap: wrap; justify-content: flex-end; }

/* ---------------- pruh s názvem ---------------- */

.pf-hero {
  flex: none;
  position: relative;
  min-height: 66px;
  display: flex;
  align-items: center;
  padding: 10px 22px 24px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .62) 0%, rgba(0, 0, 0, .34) 55%, rgba(0, 0, 0, .5) 100%),
    radial-gradient(120% 220% at 75% 0%, #6b6f73 0%, #3e4245 60%, #2f3234 100%);
}
.pf-hero-in { position: relative; z-index: 2; max-width: 760px; }
.pf-hero h1 {
  font-family: var(--font-ui);
  font-weight: 200;
  font-size: clamp(15px, 1.6vw, 20px);
  line-height: 1.1;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 0 6px rgba(0, 0, 0, .55);
}
.pf-wedge {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 26px;
  background: var(--ground);
  clip-path: polygon(0 100%, 0 8%, 46% 100%, 100% 8%, 100% 100%);
  z-index: 1;
}

/* ---------------- tlačítka ---------------- */

.btn {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  padding: 9px 13px;
  border-radius: var(--radius-s);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  transition: background .12s, border-color .12s, color .12s;
  white-space: nowrap;
}
.btn:hover:not(:disabled) { background: var(--surface-2); border-color: var(--ink-3); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover:not(:disabled) { background: var(--accent-hi); border-color: var(--accent-hi); }

/* ---------------- rozvržení ---------------- */

.layout {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: var(--panel-w) minmax(0, 1fr);
  min-height: 0;
}

/* ---------------- panel s kroky ---------------- */

.panel {
  background: var(--surface);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
}
.step {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.step-head { display: flex; align-items: center; gap: 9px; }
.step-num {
  flex: none;
  width: 21px; height: 21px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  color: var(--ink-2);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  display: grid;
  place-items: center;
  font-variant-numeric: tabular-nums;
}
.step.done .step-num { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.step-head h2 { font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }

.tip { margin: 0; font-size: 12px; color: var(--ink-3); line-height: 1.45; }
.tip strong { color: var(--ink-2); font-weight: 600; }
.muted { color: var(--ink-3); font-weight: 400; }
.panel-foot { padding: 14px 16px 22px; font-size: 11.5px; color: var(--ink-3); line-height: 1.5; }

/* číselné pole */
.num-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.num-row label { font-family: var(--font-ui); font-size: 12px; font-weight: 500; color: var(--ink-2); }
.num-field {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-s);
  background: var(--ground);
  padding: 0 8px 0 0;
}
.num-field:focus-within { border-color: var(--accent); }
.num-field input {
  width: 58px; border: none; background: transparent; color: var(--ink);
  font-family: var(--font-ui); font-size: 13px; font-variant-numeric: tabular-nums;
  padding: 7px 0 7px 9px;
}
.num-field input:focus { outline: none; }
.num-field .unit { font-size: 12px; color: var(--ink-3); }
.num-row.big-row label { font-size: 12.5px; color: var(--ink); }
.num-row.big-row .num-field input { width: 74px; font-size: 15px; font-weight: 600; }
.num-row.big-row .num-field { border-color: var(--accent); }

/* volby (radio) */
.choice { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.choice label {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-ui); font-size: 12px; font-weight: 500; color: var(--ink-2); cursor: pointer;
}
.choice input { accent-color: var(--accent); margin: 0; }

/* podpanel */
.sub {
  display: flex; flex-direction: column; gap: 10px;
  padding: 12px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-s);
  background: var(--ground);
}

/* ---------------- pracovní plocha ---------------- */

.stage {
  position: relative;
  min-width: 0;
  background: radial-gradient(120% 120% at 50% 0%, var(--stage-bg) 0%, var(--stage-bg-2) 100%);
  overflow: hidden;
  touch-action: none;
}
#platno { position: absolute; inset: 0; }
#platno canvas { display: block; }

.tools {
  position: absolute;
  top: 12px; left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  padding: 5px;
  border-radius: 8px;
  background: rgba(28, 32, 36, .82);
  backdrop-filter: blur(9px);
  border: 1px solid rgba(255, 255, 255, .11);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .3);
  z-index: 3;
}
.seg { display: flex; gap: 3px; }
.seg-btn {
  position: relative;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 11px;
  border-radius: 5px;
  font-family: var(--font-ui); font-size: 12px; font-weight: 500;
  color: #cfd5d9;
  cursor: pointer;
  user-select: none;
  transition: background .12s, color .12s;
}
.seg-btn svg { width: 16px; height: 16px; flex: none; }
.seg-btn input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg-btn:hover { background: rgba(255, 255, 255, .09); color: #fff; }
.seg-btn[hidden] { display: none; }
.seg-btn:has(input:checked) { background: var(--accent-hi); color: #fff; }
.seg-btn:has(input:focus-visible) { outline: 2px solid #fff; outline-offset: 1px; }

.hintbar {
  position: absolute;
  bottom: 14px; left: 50%;
  transform: translateX(-50%);
  max-width: min(560px, calc(100% - 28px));
  padding: 8px 14px;
  border-radius: 6px;
  background: rgba(28, 32, 36, .84);
  backdrop-filter: blur(9px);
  border: 1px solid rgba(255, 255, 255, .11);
  color: #dfe4e7;
  font-size: 12.5px;
  text-align: center;
  pointer-events: none;
  z-index: 3;
}
.hintbar b { color: #fff; font-weight: 600; }

.glfail {
  position: fixed; inset: auto 16px 16px 16px; z-index: 50;
  background: var(--surface);
  border: 1px solid var(--danger); border-left-width: 4px;
  border-radius: var(--radius);
  padding: 12px 14px; box-shadow: var(--shadow); font-size: 13px;
}
.glfail[hidden] { display: none; }
.glfail p { margin: 0; }

/* ============================================================
   NÁDRŽE — co vizualizér dlažby nemá
   ============================================================ */

.pole { display: flex; flex-direction: column; gap: 6px; }
.pole[hidden] { display: none; }
.pole-nadpis { font-family: var(--font-ui); font-size: 12px; font-weight: 500; color: var(--ink-2); }

.omezeni summary {
  cursor: pointer;
  font-family: var(--font-ui); font-size: 12px; font-weight: 500; color: var(--ink-2);
  margin-bottom: 8px;
}

/* seznam vhodných nádrží — vybraná má červený okraj jako vybraná dlažba */
.vysledky { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.vysledky li {
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  padding: 8px 10px;
  cursor: pointer;
  background: var(--surface);
  transition: border-color .12s, background .12s;
}
.vysledky li:hover { border-color: var(--ink-3); }
.vysledky li.vybrano { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); background: var(--accent-soft); }
.vysledky .jmeno { font-family: var(--font-ui); font-weight: 600; font-size: 13px; line-height: 1.3; }
.vysledky .cisla { color: var(--ink-2); font-size: 12px; line-height: 1.4; margin-top: 2px; }
.vysledky .prazdno { cursor: default; color: var(--ink-3); font-size: 12px; }
/* hlášení „do zadaných rozměrů se nic nevejde" — stejné jako .notice u dlažby */
.notice {
  font-size: 12px;
  line-height: 1.45;
  color: var(--ink-2);
  background: var(--danger-soft);
  border: 1px solid var(--line);
  border-left: 3px solid var(--danger);
  border-radius: var(--radius-s);
  padding: 9px 10px;
}
.notice[hidden] { display: none; }
.notice p { margin: 0 0 6px; }
.notice ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.notice li { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.notice li b { color: var(--ink); font-weight: 600; }
.notice li .muted { font-size: 11px; }
.notice .btn { font-size: 11px; padding: 4px 8px; flex: none; }
/* rychlá volba pod polem (hladina až po terén) */
.rychla-volba { display: flex; align-items: center; justify-content: flex-end; gap: 8px; font-size: 11px; }
.rychla-volba .btn { font-size: 11px; padding: 4px 8px; }
.rychla-volba .btn.zapnuto { border-color: var(--accent); color: var(--accent); }
/* otvory ve stěnách: schéma s pohledy 1–4, karta na každý otvor */
.otvory-schema svg { display: block; width: 100%; max-height: 130px; margin: 6px 0 2px; }
.otvory-schema .obrys { fill: var(--surface-2); stroke: var(--ink-2); stroke-width: 1.4; }
.otvory-schema .spara { stroke: var(--ink-3); stroke-width: 1; }
.otvory-schema .sipka { fill: var(--accent); }
.otvory-schema .pohled { fill: var(--accent); font: 700 12px var(--font-ui); text-anchor: middle; }
.otvory-schema .cislo { fill: var(--ink-2); font: 600 11px var(--font-ui); text-anchor: middle; }
.otvory { list-style: none; margin: 8px 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.otvor { border: 1px solid var(--line); border-radius: var(--radius-s); padding: 8px 10px; background: var(--surface); }
.otvor.chyba { border-color: var(--danger); }
.otvor-hlava { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.otvor-hlava b { font-family: var(--font-ui); font-size: 13px; }
.otvor-smazat { margin-left: auto; border: 0; background: none; color: var(--ink-3); cursor: pointer; font-size: 14px; padding: 2px 6px; }
.otvor-smazat:hover { color: var(--danger); }
.otvor-pole { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; }
.otvor-pole label { display: flex; flex-direction: column; gap: 2px; font-size: 11px; color: var(--ink-3); min-width: 0; }
.otvor-pole label.cela { grid-column: 1 / -1; }
.otvor-pole select, .otvor-pole input {
  font: 500 13px var(--font-ui); color: var(--ink); background: var(--surface-2);
  border: 1px solid var(--line-strong); border-radius: 6px; padding: 5px 6px; min-width: 0; width: 100%;
}
.otvor-pole .mm { display: flex; align-items: center; gap: 4px; }
.otvor-pole .mm i { font-style: normal; color: var(--ink-3); font-size: 11px; }
.otvor-info { margin-top: 6px; font-size: 11.5px; }
.otvor-info .varovani { margin: 3px 0 0; color: var(--danger); }
.kota.otvor { border-color: #9aa7b4; }

/* výkres pod kusovníkem: přepne plochu z 3D na výkres a zpět */
.vykres-btn { width: 100%; margin-top: 10px; display: flex; flex-direction: column; align-items: center; gap: 1px; }
.vykres-btn b { font-weight: 600; }
.vykres-btn .muted { color: inherit; opacity: .8; font-size: 11px; }

/* výkres v ploše místo 3D (jen náhled): bílý list A4 na tmavé ploše */
.vykres-plocha {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  padding: 64px 20px 20px;
  background: radial-gradient(120% 120% at 50% 0%, var(--stage-bg) 0%, var(--stage-bg-2) 100%);
}
.vykres-plocha[hidden] { display: none; }
.vykres-chyba { color: #fff; font-size: 14px; }
.vykres-plocha svg { width: 100%; height: 100%; filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .45)); }
.seg-vykres { padding-left: 8px; border-left: 1px solid rgba(255, 255, 255, .14); }
/* ve výkresu nemají 3D přepínače, popisek ani nápověda k myši smysl; dotyk smí zvětšovat */
.stage.rezim-vykres { touch-action: auto; }
.stage.rezim-vykres #platno { visibility: hidden; }          /* i s popisky kót 3D */
.stage.rezim-vykres .tools .seg:not(.seg-vykres),
.stage.rezim-vykres .nadpis-sestavy,
.stage.rezim-vykres .hintbar { display: none; }
.stage.rezim-vykres .seg-vykres { padding-left: 0; border-left: 0; }
@media (max-width: 860px) { .vykres-plocha { padding: 58px 6px 6px; } }
.vysledky .prazdno ul { margin: 4px 0 6px; padding-left: 16px; }
.vysledky .prazdno b { color: var(--ink-2); font-weight: 600; }
/* rámová místo zvoleného tvaru (celá nádrž pod vodou) — vzhled jako .notice */
.vysledky li.nahrada {
  cursor: default; font-size: 12px; line-height: 1.45; color: var(--ink-2);
  background: var(--danger-soft); border-left: 3px solid var(--danger);
}
.vysledky li.nahrada:hover { border-color: var(--line); border-left-color: var(--danger); }
.num-field.malo { border-color: var(--danger); box-shadow: inset 0 0 0 1px var(--danger); }
.num-field.malo input { color: var(--danger); }

/* doporučená nádrž nahoře, ostatní pod mezititulkem */
.vysledky li.doporucena { border-left: 3px solid var(--accent); padding: 10px 12px; }
.vysledky li.doporucena .jmeno { font-size: 14.5px; }
.doporuceno {
  display: inline-block; margin-bottom: 4px;
  font-family: var(--font-ui); font-size: 10.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 1px 7px; border-radius: 2px;
  background: var(--accent); color: var(--accent-ink);
}
.vysledky li.mezinadpis {
  cursor: default; border: 0; background: none; padding: 10px 0 0;
  font-family: var(--font-ui); font-size: 10.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-3);
}
.vysledky li.mezinadpis:hover { border: 0; }
.stitek {
  display: inline-block;
  font-size: 10.5px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase;
  padding: 1px 6px; margin: 5px 4px 0 0;
  border-radius: 2px;
  background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line);
}
.vysledky li.vybrano .stitek { background: var(--surface); }
.stitek.posoudit { background: var(--danger-soft); color: var(--danger); border-color: var(--danger); }

/* souhrn sestavy */
#souhrn dl { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; margin: 0; font-size: 12.5px; }
#souhrn dt { color: var(--ink-3); }
#souhrn dd { margin: 0; font-weight: 600; }
#souhrn .prazdno { margin: 0; color: var(--ink-3); font-size: 12px; }

.panel select {
  width: 100%;
  font-family: var(--font-ui); font-size: 12.5px;
  padding: 6px 8px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-s);
  background: var(--ground);
  color: var(--ink);
}

.kusovnik { width: 100%; border-collapse: collapse; font-size: 12px; }
.kusovnik th {
  text-align: left; color: var(--ink-3); font-weight: 600;
  font-size: 10.5px; letter-spacing: .05em; text-transform: uppercase;
  border-bottom: 1px solid var(--line); padding: 4px 4px 4px 0;
}
.kusovnik td { border-bottom: 1px solid var(--line); padding: 6px 4px 6px 0; vertical-align: top; }
.kusovnik td small { color: var(--ink-3); display: block; font-size: 11px; line-height: 1.35; }
.kusovnik td:last-child, .kusovnik th:last-child { text-align: right; white-space: nowrap; padding-right: 0; }
.kusovnik td:nth-child(2) { white-space: nowrap; color: var(--ink-2); }
.kusovnik td:last-child small { color: var(--ink-2); }            /* cena pod hmotností */

.cena { margin: 10px 0 0; font-family: var(--font-ui); font-size: 14px; line-height: 1.4; }
.cena strong { color: var(--accent); font-size: 16px; }
.cena .cena-popis { color: var(--ink-2); }
.cena small { display: block; color: var(--ink-3); font-size: 11px; margin-top: 2px; }
.vysledky .cena-polozky { margin-top: 3px; font-size: 12px; color: var(--ink-3); }
.vysledky .cena-polozky b { color: var(--ink); font-weight: 600; }

/* popisky ve 3D — stejný tmavý štítek jako lišta nástrojů */
.kota {
  font: 600 12px/1 var(--font-ui);
  color: #fff;
  background: rgba(28, 32, 36, .84);
  border: 1px solid rgba(255, 204, 51, .55);
  padding: 3px 6px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
}
.kota.voda { border-color: rgba(90, 170, 240, .8); }
.nadpis-sestavy {
  position: absolute; left: 12px; bottom: 14px; z-index: 3;
  font-family: var(--font-ui); font-weight: 600; font-size: 12.5px;
  color: #fff;
  background: rgba(28, 32, 36, .84);
  border: 1px solid rgba(255, 255, 255, .11);
  border-left: 3px solid var(--pf-cervena);
  padding: 6px 10px;
  border-radius: 6px;
}
.nadpis-sestavy:empty { display: none; }
/* nápověda a název by se na úzké ploše překrývaly — nápověda ustoupí */
@media (max-width: 1250px) { .stage .hintbar { display: none; } }

/* ---------------- kroky (pořadí 20. 10.), otvory v deskách ---------------- */
.pod-nadpis {
  font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3);
  margin: 6px 0 0; padding-top: 10px; border-top: 1px solid var(--line);
}
.choice-sloupec { flex-direction: column; gap: 6px; }
.desky-plan { display: block; width: 100%; max-height: 330px; touch-action: none; user-select: none; -webkit-user-select: none; }
.desky-plan .deska { fill: var(--surface-2); stroke: var(--ink-2); stroke-width: 1.2; cursor: pointer; }
.desky-plan .deska.vybrana { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.8; }
.desky-plan .odstup { fill: none; stroke: var(--ink-3); stroke-width: .8; stroke-dasharray: 3 3; pointer-events: none; }
.desky-plan .cislo-desky { fill: var(--ink-3); font: 600 10px var(--font-ui); text-anchor: middle; pointer-events: none; }
.desky-plan .otvor-desky { fill: #3a3f44; stroke: var(--ink); stroke-width: 1; cursor: grab; }
.desky-plan .otvor-desky.vybrany { fill: var(--accent); stroke: var(--accent-hi); }
.desky-plan .otvor-desky.chyba { stroke: var(--danger); stroke-width: 2; }
.desky-plan .popis-otvoru { fill: #fff; font: 700 10px var(--font-ui); text-anchor: middle; pointer-events: none; }
.otvory .otvor.vybrany { border-color: var(--accent); }

/* ---------------- terén v řezech (okno Terén) ---------------- */
.teren-btn { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.teren-btn b { font-weight: 600; }
.teren-btn .muted { font-size: 11px; white-space: normal; text-align: center; line-height: 1.3; }
.teren-btn.zapnuto { border-color: var(--accent); }
.teren-btn.zapnuto b { color: var(--accent); }
.teren-okno {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(0, 0, 0, .55);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.teren-okno[hidden] { display: none; }
.teren-box {
  background: var(--surface); color: var(--ink);
  border-radius: var(--radius); box-shadow: var(--shadow);
  width: min(1180px, 100%); max-height: 100%; overflow-y: auto;
  padding: 14px 16px; display: flex; flex-direction: column; gap: 10px;
}
.teren-hlava { display: flex; align-items: baseline; gap: 10px; }
.teren-hlava h2 { font-size: 15px; }
.teren-hlava .muted { font-size: 12px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.teren-hlava .otvor-smazat { font-size: 16px; }
.teren-rezy { display: grid; grid-template-columns: 1.4fr 1fr; gap: 14px; }
.teren-rez { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.teren-rez h3 { font-size: 13px; }
.teren-svg {
  display: block; width: 100%; height: 260px;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius-s);
  touch-action: none; user-select: none; -webkit-user-select: none;
}
.teren-svg .zem { fill: #b89a72; opacity: .45; }
.teren-svg .nadrz { fill: #9b9b9b; stroke: #5c5c5c; stroke-width: 1.2; }
.teren-svg .dutina { fill: var(--surface-2); stroke: #5c5c5c; stroke-width: 1; }
.teren-svg .cara { fill: none; stroke: #6b4f2c; stroke-width: 2.5; stroke-linejoin: round; }
.teren-svg .chyt { fill: none; stroke: transparent; stroke-width: 22; cursor: ns-resize; pointer-events: stroke; }
.teren-svg .bod { fill: var(--surface); stroke: #6b4f2c; stroke-width: 2.5; cursor: grab; }
.teren-svg .bod.vybrany { fill: #6b4f2c; }
.teren-svg .bod-zona { fill: transparent; cursor: grab; }
.teren-svg .hpv { stroke: #2f7fd6; stroke-width: 1.6; stroke-dasharray: 7 4; }
.teren-svg .hpv-text { fill: #2f7fd6; font: 600 11px var(--font-ui); }
.teren-svg .kota { stroke: var(--ink-2); stroke-width: 1; }
.teren-svg .kota-text { fill: var(--ink); font: 600 12px var(--font-ui); paint-order: stroke; stroke: var(--surface-2); stroke-width: 3px; }
.teren-svg .kota-text.spatne { fill: var(--danger); }
.teren-svg .kota.spatne { stroke: var(--danger); }
.teren-svg .popis { fill: var(--ink-3); font: 500 11px var(--font-ui); }
.teren-info { font-size: 12px; color: var(--ink-2); min-height: 18px; }
.teren-info .spatne { color: var(--danger); font-weight: 600; }
.teren-bod { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 6px 12px; min-height: 44px; }
.teren-bod label { display: flex; flex-direction: column; gap: 2px; font-size: 11px; color: var(--ink-3); }
.teren-bod .num-field input { width: 70px; }
.teren-bod .btn { font-size: 12px; padding: 6px 10px; }
.teren-bod .muted { font-size: 11.5px; }
.teren-pata { display: flex; align-items: center; gap: 10px; border-top: 1px solid var(--line); padding-top: 10px; }
.teren-souhrn { flex: 1; font-size: 12px; color: var(--ink-2); }
.teren-souhrn .spatne { color: var(--danger); font-weight: 600; }
@media (max-width: 860px) {
  .teren-okno { padding: 0; align-items: stretch; }
  .teren-box { border-radius: 0; padding: 12px; }
  .teren-rezy { grid-template-columns: 1fr; }
  .teren-svg { height: 210px; }
  .teren-pata { flex-wrap: wrap; }
  .teren-souhrn { flex-basis: 100%; order: -1; }
}

/* ---------------- responzivní (jako dlažba) ---------------- */

@media (max-width: 860px) {
  html, body { height: auto; min-height: 100%; overflow: visible; }
  .layout { grid-template-columns: 1fr; grid-template-rows: auto auto; }
  .stage {
    grid-row: 1;
    height: min(52vh, 480px);
    position: sticky;
    top: 0;
    z-index: 5;
  }
  .panel { grid-row: 2; border-right: none; border-top: 1px solid var(--line); overflow: visible; }
  .tools {
    left: 8px; right: 8px; top: 8px;
    transform: none;
    justify-content: center;
    padding: 4px;
  }
  .seg { gap: 2px; }
  .seg-btn span { display: none; }
  .seg-btn { padding: 8px 10px; }
  .pf-top { padding: 8px 12px; gap: 10px; }
  .pf-logo-text i { display: none; }
  .pf-logo-text b { font-size: 18px; }
  .pf-hero { min-height: 58px; padding: 9px 12px 20px; }
  .pf-hero h1 { letter-spacing: .1em; }
  .pf-wedge { height: 22px; }
  .top-actions .btn { font-size: 12px; padding: 8px 10px; }
  .nadpis-sestavy { bottom: 8px; left: 8px; font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}
.komin-volba { display: flex; align-items: center; gap: 6px; margin-top: 6px; font-size: 12px; color: var(--ink-2); cursor: pointer; }
.komin-volba input { accent-color: var(--accent); margin: 0; }
.kusovnik tr.komin td:nth-child(2) { white-space: normal; overflow-wrap: anywhere; }
/* otvory v deskách jako tabulka (zákazník 20. 10.: „aby to nebolo moc veľké“) */
.otvory-tab { width: 100%; table-layout: fixed; border-collapse: collapse; font-size: 12px; margin: 6px 0 8px; }
.otvory-tab th { text-align: left; color: var(--ink-3); font-weight: 600; font-size: 10.5px; letter-spacing: .04em; padding: 2px 3px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.otvory-tab th i { font-style: normal; font-weight: 400; text-transform: none; }
.otvory-tab td { padding: 3px 2px; vertical-align: middle; }
.otvory-tab td.c { text-align: center; font-weight: 600; }
.otvory-tab tbody { border-bottom: 1px solid var(--line); }
.otvory-tab tbody.vybrany { background: var(--accent-soft); }
.otvory-tab tbody.chyba td:first-child { color: var(--danger); }
.otvory-tab select, .otvory-tab input[type=number] {
  width: 100%; min-width: 0; font: 11.5px var(--font-ui); padding: 3px 2px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-s); background: var(--ground); color: var(--ink);
}
.otvory-tab input[type=number] { -moz-appearance: textfield; appearance: textfield; text-align: right; }
.otvory-tab input[type=number]::-webkit-inner-spin-button,
.otvory-tab input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.otvory-tab input.strana { margin-top: 3px; }
.otvory-tab input[type=checkbox] { accent-color: var(--accent); margin: 0; }
.otvory-tab .otvor-smazat { padding: 0 4px; }
.otvory-tab tr.info td { padding: 0 3px 4px; font-size: 11px; line-height: 1.35; }
.otvory-tab tr.info td:empty { display: none; }
.otvory-tab .varovani { margin: 2px 0 0; color: var(--danger); }
.kusovnik td.ks, .kusovnik td.v { text-align: right; white-space: nowrap; color: var(--ink-2); }
.kusovnik th:nth-child(2), .kusovnik th:nth-child(3) { text-align: right; }
.kusovnik td small.znacka { color: var(--ink-2); }
.kusovnik tr.soucet td { font-weight: 600; border-top: 1.5px solid var(--line-strong); border-bottom: 0; color: var(--ink); }
.num-row[hidden] { display: none; }
/* půdorys střechy (okno Objem ze střechy, 21. 10.) */
.strecha-rozlozeni { display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 14px; }
.strecha-svg { height: 420px; cursor: crosshair; }
.strecha-svg .mriz { stroke: var(--line); stroke-width: 1; }
.strecha-svg .mriz.hlavni { stroke: var(--line-strong); }
.strecha-svg .strecha { fill: rgba(224, 24, 31, .14); stroke: var(--accent); stroke-width: 2.2; stroke-linejoin: round; }
.strecha-svg .strecha-cara { fill: none; stroke: var(--accent); stroke-width: 2.2; stroke-dasharray: 6 4; }
.strecha-svg .roh { fill: var(--surface); stroke: var(--accent); stroke-width: 2.5; cursor: grab; }
.strecha-svg .roh.prvni { fill: var(--accent); }
.strecha-svg .kota-strany { fill: var(--ink); font: 600 12px var(--font-ui); text-anchor: middle; paint-order: stroke; stroke: var(--surface-2); stroke-width: 3px; pointer-events: none; }
.strecha-svg .napoveda { fill: var(--ink-3); font: 500 13px var(--font-ui); text-anchor: middle; pointer-events: none; }
.strecha-svg .meritko { fill: var(--ink-3); font: 500 11px var(--font-ui); text-anchor: end; pointer-events: none; }
.strecha-boky { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.strecha-boky .otvory-tab { margin: 0; }
.strecha-boky .otvory-tab input { max-width: 80px; }
#btnStrecha { margin-bottom: 4px; }
@media (max-width: 860px) {
  .strecha-rozlozeni { grid-template-columns: 1fr; }
  .strecha-svg { height: 300px; }
}
.strecha-boky select { width: 100%; font: 12.5px var(--font-ui); padding: 6px 8px; border: 1px solid var(--line-strong); border-radius: var(--radius-s); background: var(--ground); color: var(--ink); }