/* ================================================================
   SWAMP – Laboratorium hydrauliki
   kalkulatory/lab/lab.css

   Kolory członów równań znaczą to samo we wszystkich laboratoriach:
   wysokość i grawitacja, ciśnienie, bezwładność, lepkość i tarcie,
   zmiana w czasie.
   ================================================================ */
:root {
  --t-wys:  #a8690f;
  --t-cis:  #2563eb;
  --t-pred: #d9420f;
  --t-lep:  #7c3aed;
  --t-czas: #008fa8;
  --lab-papier: #f1f6f3;
}

i.m, .m { font-style: italic; }

/* ── Nagłówek ────────────────────────────────────────────────── */
.lab-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 0.2rem 2rem;
  padding: 0.75rem 1.5rem 0.65rem;
  border-bottom: 1px solid var(--border);
}
.lab-head-text { min-width: 0; }
.lab-title { font-size: 1.55rem; line-height: 1.2; }
.lab-q { font-size: 0.98rem; color: var(--text3); margin: 0.1rem 0 0; line-height: 1.45; }
.lab-nav { display: flex; flex-wrap: wrap; gap: 0.1rem 1.15rem; font-size: 0.95rem; }
.lab-nav a { color: var(--text3); padding-bottom: 2px; border-bottom: 2px solid transparent; }
.lab-nav a:hover { color: var(--accent); text-decoration: none; }
.lab-nav a[aria-current="page"] { color: var(--accent2); border-bottom-color: var(--accent); }

/* ── Stanowisko: scena + panel ───────────────────────────────── */
.lab-work {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 348px;
  height: calc(100vh - 150px);
  min-height: 600px;
  border-bottom: 1px solid var(--border);
}
.lab-scene {
  position: relative; min-width: 0; overflow: hidden;
  background: var(--lab-papier);
}
.lab-scene canvas { display: block; position: absolute; inset: 0; width: 100%; height: 100%; touch-action: pan-y; outline: none; }
.lab-scene canvas:focus-visible { box-shadow: inset 0 0 0 2px var(--accent); }
.lab-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 2; }
.lab-label {
  position: absolute; left: 0; top: 0; will-change: transform; white-space: nowrap;
  font-size: 0.92rem; line-height: 1.15; color: var(--text);
  text-shadow: 0 0 3px #fff, 0 0 3px #fff, 0 0 6px #fff, 0 0 8px rgba(255,255,255,.9);
}
.lab-label.c-wys { color: var(--t-wys); } .lab-label.c-cis { color: var(--t-cis); }
.lab-label.c-pred { color: var(--t-pred); } .lab-label.c-lep { color: var(--t-lep); }
.lab-label.c-czas { color: var(--t-czas); } .lab-label.c-kaw { color: #b91c1c; }
.lab-label.big { font-size: 1.05rem; }

/* Żywe równanie */
.lab-eq {
  position: absolute; left: 0; right: 0; top: 0; z-index: 3; pointer-events: none;
  display: flex; flex-direction: column; align-items: center; gap: 0.35rem;
  padding: 0.85rem 1rem 0;
}
.lab-eq-line {
  display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: center; gap: 0 0.6rem;
  font-size: clamp(1.15rem, 2vw, 1.75rem); line-height: 1.2; color: var(--text);
  text-shadow: 0 0 6px var(--lab-papier), 0 0 12px var(--lab-papier);
}
.lab-eq-line.small { font-size: clamp(0.95rem, 1.3vw, 1.15rem); color: var(--text3); }
.lab-op { padding-top: 0.28em; }
.lab-term { display: inline-flex; flex-direction: column; align-items: center; color: var(--c, inherit); }
.lab-term > .f { display: inline-flex; align-items: center; min-height: 2.05em; gap: 0.12em; }
.lab-term > output {
  font-size: 0.62em; color: var(--text2); min-width: 4.6em; text-align: center;
  border-top: 2px solid var(--c, var(--border2)); margin-top: 0.1em; padding-top: 0.06em;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.frac { display: inline-flex; flex-direction: column; align-items: center; vertical-align: middle; line-height: 1.05; }
.frac > span:first-child { border-bottom: 1px solid currentColor; padding: 0 0.15em 0.04em; }
.frac > span:last-child { padding: 0.04em 0.15em 0; }
.lab-status {
  font-size: 0.92rem; line-height: 1.4; color: #fff; background: #991b1b;
  padding: 0.2rem 0.7rem; border-radius: 3px; max-width: 46em; text-align: center;
}
.lab-status.info { background: var(--accent2); }
.lab-status:empty { display: none; }

.lab-eq-cap { font-size: 0.82rem; color: var(--text3); margin-top: -0.2rem; text-shadow: 0 0 5px var(--lab-papier); }

/* Legenda na scenie */
.lab-legend {
  position: absolute; z-index: 4; left: 0.8rem; top: 0.8rem; pointer-events: none;
  font-size: 0.82rem; line-height: 1.3; color: var(--text2); text-shadow: 0 0 4px var(--lab-papier), 0 0 8px var(--lab-papier);
}
.lab-legend-bar { display: block; width: 12rem; max-width: 60vw; height: 0.5rem; border-radius: 1px; margin-bottom: 0.15rem; }
.lab-legend-ticks { display: flex; justify-content: space-between; width: 12rem; max-width: 60vw; }
.lab-legend-note { display: block; color: var(--text3); margin-top: 0.1rem; }

/* Przyciski na scenie */
.lab-view, .lab-trans { position: absolute; z-index: 4; bottom: 0.7rem; display: flex; gap: 0.3rem; }
.lab-view { right: 0.7rem; }
.lab-trans { left: 0.7rem; }
.lab-sbtn {
  font-family: var(--font); font-size: 0.92rem; line-height: 1.2; min-width: 2.2rem;
  padding: 0.38rem 0.7rem; cursor: pointer; color: var(--text2);
  background: rgba(255,255,255,.92); border: 1px solid var(--border2); border-radius: var(--r);
}
.lab-sbtn:hover { color: var(--accent); border-color: var(--accent); }
.lab-sbtn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.lab-sbtn.pri { background: var(--accent); border-color: var(--accent); color: #fff; }
.lab-sbtn.pri:hover { background: var(--accent2); color: #fff; }
.lab-hint {
  position: absolute; z-index: 4; left: 50%; bottom: 3.3rem; transform: translateX(-50%);
  font-size: 0.85rem; color: #fff; background: rgba(14,26,22,.85); padding: 0.25rem 0.7rem; border-radius: 3px;
  pointer-events: none; opacity: 0; transition: opacity .25s;
}
.lab-hint.on { opacity: 1; }
.lab-nogl { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 2rem; text-align: center; color: var(--text2); z-index: 5; background: var(--lab-papier); }

/* ── Panel boczny ────────────────────────────────────────────── */
.lab-side {
  overflow-y: auto; padding: 0.3rem 1.15rem 1.5rem;
  border-left: 1px solid var(--border); background: var(--bg);
  scrollbar-width: thin; scrollbar-color: var(--border2) transparent;
}
.lab-h { font-size: 1rem; font-weight: bold; color: var(--text); margin: 1rem 0 0.45rem; }
.lab-h:first-child { margin-top: 0.6rem; }

.lab-ctl { margin-bottom: 0.65rem; }
.lab-ctl label { display: block; font-size: 0.92rem; color: var(--text2); line-height: 1.3; margin-bottom: 0.1rem; }
.lab-ctl-row { display: flex; align-items: center; gap: 0.45rem; }
.lab-ctl input[type="range"] { flex: 1; min-width: 0; accent-color: var(--accent); height: 1.2rem; margin: 0; }
.lab-num {
  width: 4.2rem; font-family: var(--font); font-size: 0.92rem; text-align: right; color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r); padding: 0.1rem 0.25rem; background: var(--bg);
  font-variant-numeric: tabular-nums; -moz-appearance: textfield;
}
.lab-num::-webkit-outer-spin-button, .lab-num::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.lab-num:focus { outline: none; border-color: var(--accent); }
.lab-unit { width: 2.4rem; font-size: 0.82rem; color: var(--muted); white-space: nowrap; }
.lab-sel { width: 100%; font-family: var(--font); font-size: 0.92rem; padding: 0.25rem 0.35rem; border: 1px solid var(--border2); border-radius: var(--r); background: var(--bg); color: var(--text); }
.lab-sel:focus { outline: none; border-color: var(--accent); }
.lab-chk { display: flex; align-items: center; gap: 0.45rem; font-size: 0.92rem; color: var(--text2); margin-bottom: 0.5rem; cursor: pointer; line-height: 1.3; }
.lab-chk input { accent-color: var(--accent); margin: 0; flex: none; }

.lab-seg { display: flex; flex-wrap: wrap; gap: 0.25rem; margin-bottom: 0.65rem; }
.lab-seg button {
  flex: 1 1 auto; font-family: var(--font); font-size: 0.88rem; padding: 0.25rem 0.5rem; cursor: pointer;
  background: var(--bg); color: var(--text2); border: 1px solid var(--border2); border-radius: var(--r);
}
.lab-seg button:hover { color: var(--accent); border-color: var(--accent); }
.lab-seg button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.lab-seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.lab-act {
  width: 100%; font-family: var(--font); font-size: 0.98rem; padding: 0.42rem 0.6rem; margin: 0.15rem 0 0.7rem;
  background: var(--accent); border: 1px solid var(--accent); color: #fff; border-radius: var(--r); cursor: pointer;
}
.lab-act:hover { background: var(--accent2); }
.lab-act:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }
.lab-act.sec { background: var(--bg); color: var(--accent2); border-color: var(--border2); }
.lab-act.sec:hover { background: var(--bg); color: var(--accent); border-color: var(--accent); }
.lab-act[disabled] { opacity: .55; cursor: default; }
.lab-sc-opis { font-size: 0.9rem; line-height: 1.5; color: var(--text2); margin: 0 0 0.65rem; }

/* Wyniki */
.lab-read { display: grid; grid-template-columns: 1fr auto; gap: 0.12rem 0.8rem; font-size: 0.9rem; line-height: 1.35; margin: 0; }
.lab-read dt { color: var(--text3); }
.lab-read dd { margin: 0; text-align: right; color: var(--text); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lab-read dd.bad { color: #b91c1c; }
.lab-read > div:not([hidden]) { display: contents; }
.lab-read > div[hidden] { display: none; }

/* Słupki członów równania */
.lab-bars { display: grid; gap: 0.3rem; margin: 0.2rem 0 0.4rem; }
.lab-bar { display: grid; grid-template-columns: 5.6rem minmax(0, 1fr) 3.9rem; align-items: center; gap: 0.4rem; font-size: 0.85rem; }
.lab-bar .n { color: var(--c); white-space: nowrap; }
.lab-bar .t { position: relative; height: 0.72rem; background: var(--bg3); border-radius: 1px; }
.lab-bar .t::after { content: ''; position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--muted); }
.lab-bar .b { position: absolute; top: 1px; bottom: 1px; background: var(--c); border-radius: 1px; }
.lab-bar .v { text-align: right; color: var(--text2); font-variant-numeric: tabular-nums; }
.lab-verdict { font-size: 0.9rem; line-height: 1.45; color: var(--text2); margin: 0.2rem 0 0.4rem; }

/* Wykres w panelu */
.lab-chart { display: block; width: 100%; height: 150px; margin-top: 0.2rem; }
.lab-chart-key { display: flex; flex-wrap: wrap; gap: 0.1rem 0.9rem; font-size: 0.82rem; color: var(--text3); }
.lab-chart-key i { display: inline-block; width: 1em; height: 2px; vertical-align: middle; margin-right: 0.3em; background: var(--c); }
.lab-chart-key i.dash { background: repeating-linear-gradient(90deg, var(--c) 0 3px, transparent 3px 6px); }

/* Lista typów pracy przepustu */
.lab-typy { list-style: none; margin: 0 0 0.4rem; padding: 0; font-size: 0.88rem; line-height: 1.35; color: var(--text3); }
.lab-typy li { padding: 0.18rem 0.4rem; border-left: 2px solid transparent; }
.lab-typy li b { display: inline-block; width: 1.1rem; color: var(--text2); }
.lab-typy li.on { color: var(--accent2); border-left-color: var(--accent); background: var(--bg3); font-weight: bold; }

/* Doświadczenia */
.lab-exp { list-style: none; padding: 0; margin: 0; }
.lab-exp button {
  display: block; width: 100%; text-align: left; font-family: var(--font); font-size: 0.95rem; line-height: 1.35;
  padding: 0.32rem 0 0.32rem 0.6rem; background: none; cursor: pointer; color: var(--text2);
  border: none; border-left: 2px solid var(--border2);
}
.lab-exp button:hover { color: var(--accent); border-left-color: var(--accent); }
.lab-exp button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.lab-exp li.on button { color: var(--accent2); border-left-color: var(--accent); font-weight: bold; }
.lab-exp-a { font-size: 0.9rem; line-height: 1.55; color: var(--text2); border-left: 2px solid var(--accent); padding: 0.1rem 0 0.55rem 0.6rem; margin: 0; }

/* ── Stanowisko z wykresem obok panelu: wykres u góry, model 3D pod nim ── */
.lab-split .lab-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.lab-wyk { flex: 0 0 60%; display: flex; flex-direction: column; min-height: 0; padding: 0.55rem 1rem 0.3rem; background: var(--bg); border-bottom: 1px solid var(--border); }
.lab-wyk-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.15rem 1.2rem; }
.lab-wyk-head .lab-h { margin: 0; }
.lab-wyk-val { display: flex; flex-wrap: wrap; gap: 0.1rem 1rem; font-size: 1rem; font-variant-numeric: tabular-nums; }
.lab-wyk-val b { font-weight: bold; }
.lab-wyk-cap { font-size: 0.82rem; color: var(--text3); margin-left: auto; }
.lab-wyk-plot { position: relative; flex: 1 1 0; min-height: 0; }
.lab-wyk-plot canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: crosshair; }
.lab-split .lab-scene { flex: 1 1 40%; min-height: 0; }
.lab-split .lab-scene .lab-eq { padding-top: 0.5rem; }
.lab-fig-in.jedna { grid-template-columns: minmax(0, 44rem); justify-content: center; }
@media (max-width: 960px) {
  .lab-wyk { flex: none; }
  .lab-wyk-plot { flex: none; height: 74vw; min-height: 300px; max-height: 520px; }
  .lab-wyk-cap { margin-left: 0; }
  .lab-split .lab-scene { flex: none; height: 55vh; min-height: 340px; }
}

/* ── Duży wykres pod stanowiskiem ───────────────────────────── */
.lab-fig { padding: 2.2rem 1.5rem 0.5rem; border-bottom: 1px solid var(--border); }
.lab-fig-in { max-width: 72rem; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(16rem, 1fr); gap: 1.5rem 2.2rem; align-items: start; }
.lab-fig h2 { font-size: 1.3rem; margin: 0 0 0.3rem; }
.lab-fig-cap { font-size: 0.92rem; color: var(--text3); margin: 0 0 0.6rem; line-height: 1.5; }
.lab-fig canvas { display: block; width: 100%; cursor: crosshair; }
.lab-fig .lab-tab { font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.lab-fig .lab-tab td, .lab-fig .lab-tab th { text-align: right; padding-right: 0.7rem; }
.lab-fig .lab-tab tr.on td { background: var(--bg3); font-weight: bold; }
.lab-fig .lab-act.sec { width: auto; padding: 0.3rem 0.8rem; font-size: 0.9rem; }
@media (max-width: 960px) {
  .lab-fig { padding: 1.6rem 1rem 0.5rem; }
  .lab-fig-in { grid-template-columns: 1fr; }
}

/* ── Tekst pod stanowiskiem ──────────────────────────────────── */
.lab-text { padding: 2.75rem 1.5rem 3.5rem; }
.lab-text-in { max-width: 44rem; margin: 0 auto; }
.lab-text h2 { font-size: 1.45rem; margin: 2.2rem 0 0.7rem; }
.lab-text h2:first-child { margin-top: 0; }
.lab-text p { font-size: 1.02rem; line-height: 1.75; max-width: 42rem; margin-bottom: 0.9rem; }
.lab-text ul { margin: 0 0 1rem 1.2rem; line-height: 1.7; }
.lab-text li { margin-bottom: 0.3rem; }
.lab-disp { text-align: center; font-size: 1.25rem; margin: 1.1rem 0 1.2rem; line-height: 1.6; overflow-x: auto; }
.lab-disp .frac { margin: 0 0.1em; }
.c-wys { color: var(--t-wys); } .c-cis { color: var(--t-cis); } .c-pred { color: var(--t-pred); }
.c-lep { color: var(--t-lep); } .c-czas { color: var(--t-czas); }
.lab-tab { border-collapse: collapse; font-size: 0.95rem; margin: 0.5rem 0 1rem; width: 100%; }
.lab-tab th { font-weight: normal; color: var(--text3); text-align: left; border-bottom: 1px solid var(--border2); padding: 0.25rem 0.5rem 0.25rem 0; }
.lab-tab td { padding: 0.25rem 0.5rem 0.25rem 0; border-bottom: 1px solid var(--border); vertical-align: top; }
.lab-note { font-size: 0.92rem; color: var(--text3); }

@media (max-width: 960px) {
  .lab-work { grid-template-columns: 1fr; height: auto; min-height: 0; }
  .lab-scene { height: 72vh; min-height: 440px; }
  .lab-side { border-left: none; border-top: 1px solid var(--border); overflow: visible; }
  .lab-head { padding: 0.6rem 1rem; }
  .lab-text { padding: 2rem 1rem 3rem; }
  .lab-eq-line { font-size: clamp(0.95rem, 3.6vw, 1.3rem); }
  .lab-legend { top: auto; bottom: 3.05rem; }
}
@media (max-width: 560px) {
  .lab-view [data-v="home"] { display: none; }
  .lab-sbtn { padding: 0.32rem 0.55rem; }
}
@media (prefers-reduced-motion: reduce) {
  .lab-hint { transition: none; }
}

/* ── Przelew burzowy: niższy wykres nad modelem, tok obliczeń ── */
.lab-split.niski .lab-wyk { flex-basis: 36%; }
.lab-wyk-plot canvas[hidden], .lab-chart-key[hidden] { display: none; }
.lab-wyk-head .lab-seg { margin: 0; flex-wrap: nowrap; }
.lab-wyk-head .lab-seg button { flex: none; padding: 0.1rem 0.5rem; font-size: 0.85rem; }
.lab-szyb { display: flex; flex-wrap: wrap; gap: 0.25rem; margin: -0.2rem 0 0.55rem; }
.lab-szyb button {
  flex: 1 1 auto; font-family: var(--font); font-size: 0.86rem; padding: 0.2rem 0.45rem; cursor: pointer;
  background: var(--bg); color: var(--text2); border: 1px solid var(--border2); border-radius: var(--r);
}
.lab-szyb button:hover { color: var(--accent); border-color: var(--accent); }
.lab-szyb button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.lab-label.c-q-o { color: #0a8f6a; } .lab-label.c-q-q { color: #c2410c; }
.lab-chart-key i.m { display: inline; width: auto; height: auto; background: none; margin: 0; vertical-align: baseline; }
.lab-fig-in.jedna.szeroka { grid-template-columns: minmax(0, 62rem); }
.lab-fig .lab-tok td, .lab-fig .lab-tok th { text-align: left; }
.lab-fig .lab-tok td:first-child { white-space: nowrap; color: var(--text3); }
.lab-fig .lab-tok td:nth-child(3) { text-align: right; white-space: nowrap; }
.lab-fig .lab-tok tr.nok td { background: #fbefed; }
.lab-ok { color: #0a8f6a; font-weight: bold; } .lab-nok { color: #b91c1c; font-weight: bold; }
.lab-tok-wrap { overflow-x: auto; }
@media (max-width: 960px) {
  .lab-split.niski .lab-wyk { flex-basis: auto; }
  .lab-split.niski .lab-wyk-plot { height: 58vw; min-height: 240px; max-height: 420px; }
}
@media (max-width: 560px) {
  .lab-fig .lab-tok { font-size: 0.82rem; }
  .lab-fig .lab-tok td:nth-child(3) { white-space: normal; }
  .lab-fig .lab-tok td, .lab-fig .lab-tok th { padding-right: 0.4rem; }
  .lab-split.niski .lab-label { font-size: 0.8rem; }
}