/* ===========================================================================
   Tekis tezlanuvchan harakat laboratoriyasi.

   Butun oynani egallaydigan raqamli laboratoriya (Elektr zanjiri kabi):
   chapda boshqaruv, markazda trek, o'ngda jonli o'lchovlar, pastda ish
   joyi. Ranglar CSS o'zgaruvchilarida — yorug'/qorong'i mavzu faqat
   qiymatlarni almashtiradi. Animatsiyalar o'quv maqsadida va
   `prefers-reduced-motion` da o'chadi.
   =========================================================================== */

.tlab {
  --tl-bg: #eef2f7;
  --tl-bg-2: #e3e9f2;
  --tl-panel: rgba(255, 255, 255, .86);
  --tl-solid: #ffffff;
  --tl-ink: #0f172a;
  --tl-muted: #5b6b80;
  --tl-faint: #94a3b8;
  --tl-line: #dfe5ee;
  --tl-accent: #2563eb;
  --tl-accent-2: #7c3aed;
  --tl-accent-soft: #e6eeff;
  --tl-x: #2563eb;
  --tl-v: #16a34a;
  --tl-a: #dc2626;
  --tl-ok: #15803d;
  --tl-ok-soft: #e3f7ec;
  --tl-warn: #b45309;
  --tl-warn-soft: #fff4e0;
  --tl-bad: #b91c1c;
  --tl-bad-soft: #fdecec;
  --tl-rail: #94a3b8;
  --tl-bench: #dbe3ee;
  --tl-shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 8px 24px rgba(15, 23, 42, .07);
  --tl-radius: 14px;
  --tl-font: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;
  --tl-mono: "Cascadia Mono", Consolas, ui-monospace, monospace;

  position: fixed; inset: 0; z-index: 20;
  display: flex; flex-direction: column;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(124, 58, 237, .08), transparent 60%),
    radial-gradient(900px 400px at -10% 110%, rgba(37, 99, 235, .08), transparent 60%),
    var(--tl-bg);
  color: var(--tl-ink);
  font-family: var(--tl-font); font-size: 14px; line-height: 1.45;
  overflow: hidden;
}

[data-bs-theme="dark"] .tlab {
  --tl-bg: #0a1020;
  --tl-bg-2: #0f172a;
  --tl-panel: rgba(17, 25, 45, .82);
  --tl-solid: #111a2e;
  --tl-ink: #e5ecf6;
  --tl-muted: #9aa8bc;
  --tl-faint: #64748b;
  --tl-line: #1f2a40;
  --tl-accent: #60a5fa;
  --tl-accent-2: #a78bfa;
  --tl-accent-soft: #13254a;
  --tl-x: #60a5fa;
  --tl-v: #4ade80;
  --tl-a: #f87171;
  --tl-ok: #4ade80;
  --tl-ok-soft: #0f2c1d;
  --tl-warn: #fbbf24;
  --tl-warn-soft: #2d2410;
  --tl-bad: #f87171;
  --tl-bad-soft: #351616;
  --tl-rail: #64748b;
  --tl-bench: #1a2438;
  --tl-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
}

.tlab *, .tlab *::before, .tlab *::after { box-sizing: border-box; }
.tlab button { font: inherit; cursor: pointer; }
.tlab button:disabled { cursor: not-allowed; opacity: .55; }
.tlab :focus-visible { outline: 3px solid color-mix(in srgb, var(--tl-accent) 55%, transparent); outline-offset: 2px; }
.tlab code { font-family: var(--tl-mono); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ----------------------------------------------------------- yuqori qator */
.tlab-top {
  display: flex; align-items: center; gap: 14px; flex-shrink: 0;
  padding: 8px 14px; background: var(--tl-panel);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--tl-line);
}
.tlab-exit {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 10px;
  color: var(--tl-muted); text-decoration: none; font-weight: 700; white-space: nowrap;
}
.tlab-exit:hover { color: var(--tl-accent); background: var(--tl-accent-soft); }
.tlab-brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.tlab-brand__icon {
  width: 38px; height: 38px; border-radius: 11px; flex-shrink: 0;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--tl-accent), var(--tl-accent-2));
  box-shadow: 0 6px 16px rgba(37, 99, 235, .35);
}
.tlab-brand__text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.tlab-brand__text strong { font-size: .92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tlab-brand__text small { color: var(--tl-muted); font-size: .74rem; }
.tlab-top__right { display: flex; align-items: center; gap: 8px; margin-inline-start: auto; }

.tb-icon, .tb-pill {
  display: inline-flex; align-items: center; gap: 7px; height: 36px; border-radius: 10px;
  border: 1px solid var(--tl-line); background: var(--tl-solid); color: var(--tl-muted);
  text-decoration: none; font-weight: 700; font-size: .8rem; transition: .18s ease;
}
.tb-icon { width: 36px; justify-content: center; }
.tb-pill { padding: 0 12px; }
.tb-icon:hover, .tb-pill:hover { color: var(--tl-accent); border-color: var(--tl-accent); transform: translateY(-1px); }

.lang-switch { display: inline-flex; padding: 3px; gap: 2px; border-radius: 11px; background: var(--tl-bg-2); }
.lang-chip {
  min-width: 38px; padding: 6px 9px; border-radius: 8px; border: 0; background: none;
  color: var(--tl-muted); font-weight: 800; font-size: .74rem; transition: .18s;
}
.lang-chip:hover { color: var(--tl-accent); }
.lang-chip.is-active { background: var(--tl-solid); color: var(--tl-accent); box-shadow: var(--tl-shadow); }

/* Qadamlar chizig'i */
.stepbar { display: flex; align-items: center; gap: 5px; margin-inline: auto; }
.stepdot {
  width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--tl-line);
  background: var(--tl-solid); color: var(--tl-muted); font-size: .72rem; font-weight: 800;
  display: grid; place-items: center; transition: .25s ease; padding: 0;
}
.stepdot.is-done { background: var(--tl-ok); border-color: var(--tl-ok); color: #fff; }
.stepdot.is-current { border-color: var(--tl-accent); color: var(--tl-accent); box-shadow: 0 0 0 4px var(--tl-accent-soft); animation: tl-pulse 2s infinite; }
.stepbar__count { margin-inline-start: 6px; font-weight: 800; font-size: .76rem; color: var(--tl-muted); }

.tlab-assign {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 16px; font-size: .84rem; flex-shrink: 0;
  background: linear-gradient(90deg, var(--tl-accent-soft), transparent);
  border-bottom: 1px solid var(--tl-line);
}
.tlab-assign > i { color: var(--tl-accent); }

/* ------------------------------------------------------------------ karkas */
.tlab-grid {
  flex: 1; min-height: 0; display: grid; gap: 12px; padding: 12px;
  grid-template-columns: 300px minmax(0, 1fr) 250px;
  grid-template-rows: minmax(250px, 1fr) minmax(240px, 1fr);
  grid-template-areas: "side stage read" "side dock dock";
}
.tlab-side, .tlab-stage, .tlab-read, .tlab-dock {
  background: var(--tl-panel); border: 1px solid var(--tl-line); border-radius: var(--tl-radius);
  box-shadow: var(--tl-shadow); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  min-height: 0; min-width: 0;
}
.tlab-side { grid-area: side; overflow-y: auto; padding: 14px; }
.tlab-stage { grid-area: stage; display: flex; flex-direction: column; overflow: hidden; }
.tlab-read { grid-area: read; overflow-y: auto; padding: 14px; }
.tlab-dock { grid-area: dock; display: flex; flex-direction: column; overflow: hidden; }

.side-block { margin-bottom: 18px; }
.side-title {
  font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em;
  color: var(--tl-muted); margin: 0 0 9px;
}

/* Qurilmalar */
.setups { display: grid; gap: 7px; }
.setup-card {
  display: grid; grid-template-columns: 30px 1fr; gap: 10px; align-items: center; text-align: start;
  padding: 9px 10px; border-radius: 12px; border: 1px solid var(--tl-line); background: var(--tl-solid);
  color: inherit; transition: .2s ease;
}
.setup-card i { color: var(--tl-accent); font-size: 1.05rem; text-align: center; }
.setup-card span { display: flex; flex-direction: column; line-height: 1.25; }
.setup-card small { color: var(--tl-muted); font-size: .72rem; font-family: var(--tl-mono); }
.setup-card:hover:not(:disabled) { border-color: var(--tl-accent); transform: translateX(2px); }
.setup-card.is-active { border-color: var(--tl-accent); background: var(--tl-accent-soft); box-shadow: inset 3px 0 0 var(--tl-accent); }
.lock-note { margin: 8px 0 0; font-size: .76rem; color: var(--tl-warn); background: var(--tl-warn-soft); padding: 7px 9px; border-radius: 9px; }

/* Slayderlar */
.params { display: grid; gap: 13px; }
.param__head { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.param__symbol { font-family: var(--tl-mono); font-weight: 800; color: var(--tl-accent); min-width: 22px; }
.param__name { font-weight: 700; font-size: .82rem; flex: 1; }
.param__unit { color: var(--tl-muted); font-size: .74rem; font-family: var(--tl-mono); }
.param__row { display: grid; grid-template-columns: 1fr 74px; gap: 8px; align-items: center; }
.param__hint { display: block; color: var(--tl-faint); font-size: .7rem; margin-top: 2px; }
.param__number {
  width: 100%; padding: 5px 7px; border-radius: 8px; border: 1px solid var(--tl-line);
  background: var(--tl-solid); color: var(--tl-ink); font-family: var(--tl-mono); font-size: .8rem; text-align: end;
}
.tlab input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 99px;
  background: linear-gradient(90deg, var(--tl-accent) var(--fill, 50%), var(--tl-line) var(--fill, 50%));
}
.tlab input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 3px solid var(--tl-accent); box-shadow: 0 2px 6px rgba(0,0,0,.2); transition: transform .15s;
}
.tlab input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--tl-accent); }
.tlab input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.2); }
.tlab input[type="range"]:disabled { filter: grayscale(1); opacity: .6; }

.theory-a {
  display: block; padding: 9px 10px; border-radius: 10px; font-size: .74rem; line-height: 1.5;
  background: var(--tl-bg-2); color: var(--tl-ink); word-break: break-word;
}
.forces { display: grid; gap: 4px; margin-top: 8px; }
.force { display: flex; justify-content: space-between; gap: 8px; font-size: .74rem; color: var(--tl-muted); }
.force b { color: var(--tl-ink); font-family: var(--tl-mono); white-space: nowrap; }

.options { display: grid; gap: 9px; }
.switch { display: flex; align-items: center; gap: 9px; font-size: .8rem; font-weight: 600; cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch__track { width: 36px; height: 20px; border-radius: 99px; background: var(--tl-line); position: relative; transition: .2s; flex-shrink: 0; }
.switch__track::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); transition: .2s; }
.switch input:checked + .switch__track { background: var(--tl-accent); }
.switch input:checked + .switch__track::after { transform: translateX(16px); }
.switch input:focus-visible + .switch__track { outline: 3px solid var(--tl-accent-soft); }
.speed { display: flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 600; }
.speed > span { flex: 1; }
.speed__btn { padding: 4px 9px; border-radius: 8px; border: 1px solid var(--tl-line); background: var(--tl-solid); color: var(--tl-muted); font-weight: 800; font-size: .74rem; }
.speed__btn.is-active { background: var(--tl-accent); border-color: var(--tl-accent); color: #fff; }

/* ------------------------------------------------------------------- sahna */
.stage-wrap { position: relative; flex: 1; min-height: 0; }
.stage { display: block; width: 100%; height: 100%; }
.stage-progress { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--tl-line); }
.stage-progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--tl-accent), var(--tl-accent-2)); transition: width .1s linear; }
.stage-controls {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 10px 12px;
  border-top: 1px solid var(--tl-line);
}
.status-chip {
  margin-inline-start: auto; padding: 5px 11px; border-radius: 99px; font-size: .74rem; font-weight: 800;
  background: var(--tl-bg-2); color: var(--tl-muted);
}
.status-chip[data-state="running"] { background: var(--tl-ok-soft); color: var(--tl-ok); }
.status-chip[data-state="running"]::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: currentColor; margin-inline-end: 6px; animation: tl-blink 1s infinite; }
.status-chip[data-state="finished"] { background: var(--tl-warn-soft); color: var(--tl-warn); }

/* Tugmalar */
.tbtn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 8px 14px; border-radius: 10px; border: 1px solid var(--tl-line);
  background: var(--tl-solid); color: var(--tl-ink); font-weight: 700; font-size: .84rem;
  text-decoration: none; transition: transform .15s ease, box-shadow .2s ease, background .2s;
  position: relative; overflow: hidden;
}
.tbtn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: var(--tl-shadow); border-color: var(--tl-accent); }
.tbtn:active:not(:disabled) { transform: translateY(0) scale(.98); }
.tbtn--primary { background: linear-gradient(135deg, var(--tl-accent), var(--tl-accent-2)); color: #fff; border-color: transparent; }
.tbtn--primary:hover:not(:disabled) { box-shadow: 0 8px 22px rgba(37, 99, 235, .35); }
.tbtn--primary.is-running { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.tbtn--accent { background: var(--tl-ok-soft); color: var(--tl-ok); border-color: color-mix(in srgb, var(--tl-ok) 30%, transparent); }
.tbtn--success { background: var(--tl-ok); color: #fff; border-color: transparent; }
.tbtn--danger { color: var(--tl-bad); }
.tbtn--danger:hover:not(:disabled) { border-color: var(--tl-bad); }
.tbtn--lg { padding: 11px 20px; font-size: .92rem; }
.tbtn--sm { padding: 6px 10px; font-size: .78rem; }
.tbtn.is-loading::after { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: tl-spin .8s linear infinite; }
.icon-btn { width: 30px; height: 30px; border-radius: 8px; border: 1px solid transparent; background: none; color: var(--tl-muted); display: inline-grid; place-items: center; }
.icon-btn:hover { color: var(--tl-accent); border-color: var(--tl-line); background: var(--tl-solid); }

/* ------------------------------------------------------------ jonli panel */
.readout { display: grid; gap: 8px; margin-bottom: 16px; }
.readout__cell {
  padding: 9px 11px; border-radius: 12px; background: var(--tl-solid); border: 1px solid var(--tl-line);
  position: relative; overflow: hidden;
}
.readout__cell::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--c, var(--tl-accent)); }
.readout__cell.is-time { --c: var(--tl-accent-2); }
.readout__cell.is-x { --c: var(--tl-x); }
.readout__cell.is-v { --c: var(--tl-v); }
.readout__cell.is-a { --c: var(--tl-a); }
.readout__label { display: block; font-size: .7rem; font-weight: 700; color: var(--tl-muted); }
.readout__line { display: flex; align-items: baseline; gap: 6px; }
.readout__value { font-family: var(--tl-mono); font-size: 1.32rem; font-weight: 800; color: var(--c); font-variant-numeric: tabular-nums; }
.readout__line small { color: var(--tl-muted); font-family: var(--tl-mono); font-size: .74rem; }
.readout__track { display: block; height: 4px; border-radius: 99px; background: var(--tl-bg-2); margin-top: 5px; overflow: hidden; }
.readout__bar { display: block; height: 100%; width: 0; background: var(--c); border-radius: inherit; transition: width .12s linear; }
.summary { display: grid; gap: 6px; }
.sum-row { display: flex; justify-content: space-between; gap: 8px; font-size: .78rem; padding: 7px 9px; border-radius: 9px; background: var(--tl-bg-2); }
.sum-row b { font-family: var(--tl-mono); white-space: nowrap; }
.sum-row--error.is-good { background: var(--tl-ok-soft); color: var(--tl-ok); }
.sum-row--error.is-fair { background: var(--tl-warn-soft); color: var(--tl-warn); }
.sum-row--error.is-poor { background: var(--tl-bad-soft); color: var(--tl-bad); }

/* -------------------------------------------------------------- ish joyi */
.tabs { display: flex; gap: 2px; padding: 6px 8px 0; overflow-x: auto; border-bottom: 1px solid var(--tl-line); flex-shrink: 0; scrollbar-width: thin; }
.tab {
  display: inline-flex; align-items: center; gap: 7px; padding: 9px 13px; border: 0; background: none;
  color: var(--tl-muted); font-weight: 700; font-size: .82rem; border-radius: 10px 10px 0 0;
  white-space: nowrap; position: relative; transition: color .2s, background .2s;
}
.tab::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--tl-accent); transform: scaleX(0); transition: transform .25s ease; }
.tab:hover { color: var(--tl-ink); background: var(--tl-bg-2); }
.tab.is-active { color: var(--tl-accent); }
.tab.is-active::after { transform: scaleX(1); }
.tab-count { min-width: 20px; padding: 1px 6px; border-radius: 99px; background: var(--tl-accent-soft); color: var(--tl-accent); font-size: .7rem; }
.panels { flex: 1; min-height: 0; overflow-y: auto; }
.panel { padding: 14px; animation: tl-fade .3s ease; }
.panel-lead { color: var(--tl-muted); font-size: .82rem; margin: 0 0 12px; }
.panel-toolbar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.panel--prose { max-width: 1100px; }
.muted { color: var(--tl-muted); }
.small { font-size: .78rem; }
.mono { font-family: var(--tl-mono); font-size: .8rem; }

/* Qadamlar ro'yxati */
.guide { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 8px; }
.guide__step { display: grid; grid-template-columns: 30px 1fr; gap: 10px; padding: 10px; border-radius: 12px; border: 1px solid var(--tl-line); background: var(--tl-solid); transition: .25s; }
.guide__step.is-done { border-color: color-mix(in srgb, var(--tl-ok) 40%, transparent); background: var(--tl-ok-soft); }
.guide__step.is-current { border-color: var(--tl-accent); box-shadow: 0 0 0 3px var(--tl-accent-soft); }
.guide__num { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: .8rem; background: var(--tl-bg-2); color: var(--tl-muted); }
.is-done .guide__num { background: var(--tl-ok); color: #fff; }
.is-current .guide__num { background: var(--tl-accent); color: #fff; }
.guide__body strong { font-size: .84rem; }
.guide__body p { margin: 3px 0 7px; font-size: .76rem; color: var(--tl-muted); }

/* Jadval */
.table-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 14px; align-items: start; }
.table-wrap { overflow-x: auto; border: 1px solid var(--tl-line); border-radius: 12px; }
.mtable { width: 100%; border-collapse: collapse; font-size: .8rem; }
.mtable th, .mtable td { padding: 7px 10px; border-bottom: 1px solid var(--tl-line); text-align: start; white-space: nowrap; }
.mtable thead th { background: var(--tl-bg-2); font-size: .72rem; color: var(--tl-muted); position: sticky; top: 0; }
.mtable td.num { font-family: var(--tl-mono); text-align: end; font-variant-numeric: tabular-nums; }
.mtable tbody tr { animation: tl-row .35s ease; }
.mtable tbody tr:hover { background: var(--tl-accent-soft); }
.mtable tr.is-muted { opacity: .5; }
.src { padding: 2px 7px; border-radius: 99px; font-size: .68rem; font-weight: 800; background: var(--tl-bg-2); color: var(--tl-muted); }
.src--auto { background: var(--tl-accent-soft); color: var(--tl-accent); }
.src--manual { background: var(--tl-ok-soft); color: var(--tl-ok); }
.src--typed { background: var(--tl-warn-soft); color: var(--tl-warn); }
.empty { text-align: center; padding: 26px 12px; color: var(--tl-muted); }
.empty i { font-size: 1.8rem; color: var(--tl-faint); margin-bottom: 6px; }
.empty p { margin: 6px 0 12px; }
.manual { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; margin-top: 12px; padding: 10px; border-radius: 12px; border: 1px dashed var(--tl-line); }
.manual > strong { width: 100%; font-size: .78rem; }
.manual__field { display: flex; flex-direction: column; font-size: .72rem; color: var(--tl-muted); }
.manual__field input { width: 92px; padding: 5px 7px; border-radius: 8px; border: 1px solid var(--tl-line); background: var(--tl-solid); color: var(--tl-ink); font-family: var(--tl-mono); }
.manual__error { width: 100%; color: var(--tl-bad); }
.saved-box { padding: 10px; border-radius: 12px; background: var(--tl-bg-2); }
.saved { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.saved li { display: flex; align-items: center; gap: 6px; padding: 7px; border-radius: 9px; background: var(--tl-solid); }
.saved li > span { flex: 1; display: flex; flex-direction: column; min-width: 0; font-size: .74rem; }
.saved small { color: var(--tl-muted); font-size: .68rem; }

/* Grafiklar */
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; }
.chart { margin: 0; padding: 10px; border-radius: 12px; border: 1px solid var(--tl-line); background: var(--tl-solid); }
.chart__head { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.chart__head strong { font-size: .8rem; flex: 1 1 100%; }
.chart__head strong::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 3px; background: var(--series); margin-inline-end: 7px; }
.chart__toggles { display: flex; gap: 4px; flex-wrap: wrap; }
.chart__tools { display: flex; margin-inline-start: auto; }
.chart__canvas { display: block; width: 100%; height: 210px; cursor: crosshair; }
.chip-toggle { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 99px; border: 1px solid var(--tl-line); font-size: .7rem; font-weight: 700; color: var(--tl-muted); cursor: pointer; }
.chip-toggle input { accent-color: var(--series); margin: 0; }

/* Hisob kartalari */
.calc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.calc-card { padding: 12px; border-radius: 12px; border: 1px solid var(--tl-line); background: var(--tl-solid); display: flex; flex-direction: column; gap: 6px; animation: tl-rise .45s ease both; }
.calc-card:nth-child(2) { animation-delay: .04s; } .calc-card:nth-child(3) { animation-delay: .08s; }
.calc-card:nth-child(4) { animation-delay: .12s; } .calc-card:nth-child(5) { animation-delay: .16s; }
.calc-card:nth-child(6) { animation-delay: .2s; } .calc-card:nth-child(7) { animation-delay: .24s; }
.calc-card:nth-child(8) { animation-delay: .28s; } .calc-card:nth-child(9) { animation-delay: .32s; }
.calc-card__label { font-size: .76rem; font-weight: 800; color: var(--tl-muted); }
.calc-card__formula { font-size: .8rem; padding: 6px 8px; border-radius: 8px; background: var(--tl-bg-2); word-break: break-word; }
.calc-card__value b { font-family: var(--tl-mono); font-size: 1.45rem; font-variant-numeric: tabular-nums; }
.calc-card__value small { margin-inline-start: 5px; color: var(--tl-muted); font-family: var(--tl-mono); }
.calc-card__explain { margin: 0; font-size: .74rem; color: var(--tl-muted); }
.calc-card.is-theory { border-color: color-mix(in srgb, var(--tl-accent-2) 40%, transparent); }
.calc-card.is-exp { border-color: color-mix(in srgb, var(--tl-accent) 45%, transparent); background: var(--tl-accent-soft); }
.calc-card.is-error.is-excellent, .calc-card.is-error.is-good { background: var(--tl-ok-soft); color: var(--tl-ok); }
.calc-card.is-error.is-fair { background: var(--tl-warn-soft); color: var(--tl-warn); }
.calc-card.is-error.is-poor { background: var(--tl-bad-soft); color: var(--tl-bad); }
.legend { margin-top: 14px; padding: 12px; border-radius: 12px; background: var(--tl-bg-2); font-size: .78rem; }
.legend ul { columns: 2 220px; margin: 6px 0 0; padding-inline-start: 18px; }
.legend code { font-weight: 800; color: var(--tl-accent); }
.calc-actions { margin-top: 12px; }

/* Nazariya */
.objective { padding: 12px 14px; border-radius: 12px; background: var(--tl-accent-soft); margin-bottom: 14px; font-size: .84rem; }
.objective p { margin: 0 0 6px; } .objective p:last-child { margin: 0; }
.theory-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin-bottom: 12px; }
.tcard { padding: 13px; border-radius: 12px; border: 1px solid var(--tl-line); background: var(--tl-solid); margin-bottom: 12px; }
.theory-grid .tcard { margin: 0; }
.tcard h4 { font-size: .9rem; margin: 0 0 6px; }
.tcard p { margin: 0 0 8px; font-size: .8rem; color: var(--tl-muted); }
.tcard--wide { grid-column: 1 / -1; }
.formula { display: inline-block; padding: 5px 10px; border-radius: 8px; background: var(--tl-bg-2); font-weight: 700; color: var(--tl-accent); }
.theory-split { display: grid; grid-template-columns: 1.3fr 1fr; gap: 12px; margin-bottom: 12px; }
.formula-board { padding: 14px; border-radius: 12px; color: #e2e8f0; background: linear-gradient(160deg, #0f2a1f, #10241b); border: 6px solid #6b4f2a; box-shadow: inset 0 0 40px rgba(0,0,0,.35); }
.formula-board h4 { margin: 0 0 8px; color: #fef3c7; }
.formula-row { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px dashed rgba(255,255,255,.12); }
.formula-row code { font-size: 1.02rem; color: #fff; font-weight: 700; }
.formula-row span { font-size: .74rem; color: #a7f3d0; text-align: end; }
.units { width: 100%; border-collapse: collapse; font-size: .8rem; background: var(--tl-solid); border-radius: 12px; overflow: hidden; border: 1px solid var(--tl-line); }
.units caption { caption-side: top; text-align: start; font-weight: 800; padding-bottom: 6px; color: var(--tl-ink); }
.units th, .units td { padding: 7px 10px; border-bottom: 1px solid var(--tl-line); text-align: start; }
.units thead th { background: var(--tl-bg-2); color: var(--tl-muted); font-size: .72rem; }
.strobe { width: 100%; height: auto; max-height: 120px; }
.strobe__axis { stroke: var(--tl-faint); stroke-width: 2; }
.strobe__dot { fill: var(--tl-x); transition: cx .3s ease; }
.strobe__label { fill: var(--tl-muted); font-size: 10px; text-anchor: middle; font-family: var(--tl-mono); }
.strobe__control { display: flex; align-items: center; gap: 12px; }
.strobe__control output { font-family: var(--tl-mono); font-weight: 800; white-space: nowrap; }
.shapes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.shape-card { margin: 0; text-align: center; font-size: .76rem; color: var(--tl-muted); }
.shape { width: 100%; max-width: 220px; }
.shape__axis { fill: none; stroke: var(--tl-faint); stroke-width: 2; }
.shape__line { fill: none; stroke-width: 3.5; stroke-linecap: round; stroke-dasharray: 260; stroke-dashoffset: 260; animation: tl-draw 1.4s ease forwards; }
.shape__label { fill: var(--tl-ink); font-size: 12px; font-weight: 800; font-family: var(--tl-mono); }
.apps { margin: 0; padding-inline-start: 18px; font-size: .82rem; columns: 2 240px; }
.help { font-size: .84rem; padding-inline-start: 18px; }
.keys { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: .84rem; }
.keys dd { margin: 0; }
kbd { padding: 2px 7px; border-radius: 6px; border: 1px solid var(--tl-line); border-bottom-width: 3px; background: var(--tl-solid); font-family: var(--tl-mono); font-size: .76rem; }

/* Hisobot */
.rep-form { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; max-width: 900px; }
.rep-field { display: flex; flex-direction: column; gap: 5px; font-size: .8rem; font-weight: 700; }
.rep-field--wide { grid-column: 1 / -1; }
.rep-field input, .rep-field textarea {
  padding: 9px 11px; border-radius: 10px; border: 1px solid var(--tl-line); background: var(--tl-solid);
  color: var(--tl-ink); font: inherit; font-weight: 500;
}
.rep-field input:focus, .rep-field textarea:focus { border-color: var(--tl-accent); outline: none; box-shadow: 0 0 0 4px var(--tl-accent-soft); }
.counter { color: var(--tl-muted); font-weight: 600; }
.rep-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.sheet { max-width: 860px; padding: 28px 32px; border-radius: 12px; background: #fff; color: #0f172a; border: 1px solid var(--tl-line); box-shadow: var(--tl-shadow); animation: tl-rise .4s ease; }
.sheet__head { text-align: center; border-bottom: 2px solid #0f172a; padding-bottom: 12px; margin-bottom: 14px; }
.sheet__eyebrow { margin: 0; text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; color: #475569; }
.sheet h3 { margin: 4px 0; font-size: 1.2rem; }
.sheet h4 { font-size: .92rem; margin: 14px 0 6px; color: #1e3a8a; }
.sheet p { margin: 0 0 6px; font-size: .84rem; }
.sheet__table { width: 100%; border-collapse: collapse; font-size: .8rem; }
.sheet__table th, .sheet__table td { border: 1px solid #cbd5e1; padding: 5px 8px; text-align: start; }
.sheet__table thead th { background: #eef2f7; }
.sheet__charts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.sheet__charts h4 { grid-column: 1 / -1; }
.sheet__chart { width: 100%; border: 1px solid #e2e8f0; border-radius: 6px; background: #fff; }
.sheet__conclusion { white-space: pre-wrap; padding: 10px; border-radius: 8px; background: #f8fafc; }
.sheet__sign { display: flex; justify-content: space-between; margin-top: 26px; font-size: .84rem; }

/* Topshiriq */
.task-head h4 { margin: 8px 0 2px; font-size: 1.05rem; }
.task-meta { display: grid; grid-template-columns: auto 1fr; gap: 5px 14px; font-size: .84rem; margin: 12px 0; }
.task-meta dt { color: var(--tl-muted); }
.task-meta dd { margin: 0; font-weight: 700; }
.task-text { white-space: pre-wrap; padding: 12px; border-radius: 12px; background: var(--tl-bg-2); font-size: .84rem; margin-bottom: 12px; }
.task-score { display: flex; gap: 10px; margin: 12px 0; }
.task-score > div { flex: 1; max-width: 200px; padding: 12px; border-radius: 12px; background: var(--tl-accent-soft); display: flex; flex-direction: column; }
.task-score span { font-size: .74rem; color: var(--tl-muted); }
.task-score b { font-size: 1.6rem; font-family: var(--tl-mono); }
.task-comment { margin: 0; padding: 10px 12px; border-inline-start: 4px solid var(--tl-accent); background: var(--tl-solid); border-radius: 8px; font-size: .84rem; }
.badge-status { display: inline-block; padding: 3px 10px; border-radius: 99px; font-size: .72rem; font-weight: 800; background: var(--tl-bg-2); color: var(--tl-muted); }
.badge-status.is-progress { background: var(--tl-accent-soft); color: var(--tl-accent); }
.badge-status.is-submitted { background: var(--tl-warn-soft); color: var(--tl-warn); }
.badge-status.is-checked { background: var(--tl-ok-soft); color: var(--tl-ok); }
.badge-status.is-returned { background: var(--tl-bad-soft); color: var(--tl-bad); }

/* ------------------------------------------------------------------ toast */
.tlab-toast {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); z-index: 30;
  max-width: min(560px, calc(100% - 32px)); padding: 11px 18px; border-radius: 12px;
  background: #0f172a; color: #fff; font-weight: 600; font-size: .86rem; box-shadow: 0 12px 32px rgba(0,0,0,.3);
}
.tlab-toast.is-in { animation: tl-toast .3s ease; }

/* ----------------------------------------------------------- kirish ekrani */
.splash {
  position: absolute; inset: 0; z-index: 40; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(800px 400px at 50% 0%, rgba(37,99,235,.25), transparent), rgba(10, 16, 32, .72);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); overflow-y: auto;
  transition: opacity .35s ease;
}
.splash.is-leaving { opacity: 0; }
.splash-bg { position: absolute; left: 0; right: 0; bottom: 12%; height: 60px; pointer-events: none; opacity: .5; }
.splash-track { position: absolute; left: 6%; right: 6%; bottom: 0; height: 6px; border-radius: 4px; background: linear-gradient(90deg, #475569, #94a3b8); }
.splash-cart { position: absolute; bottom: 6px; left: 6%; width: 64px; height: 28px; border-radius: 7px; background: linear-gradient(135deg, #60a5fa, #1d4ed8); animation: tl-cart 4.5s cubic-bezier(.55, 0, .9, .6) infinite; }
.splash-card {
  position: relative; width: min(620px, 100%); padding: 30px 28px; border-radius: 22px; text-align: center;
  background: var(--tl-solid); color: var(--tl-ink); box-shadow: 0 30px 80px rgba(0,0,0,.35);
  animation: tl-rise .5s ease;
}
.splash-icon { display: inline-grid; place-items: center; width: 64px; height: 64px; border-radius: 18px; font-size: 1.7rem; color: #fff; background: linear-gradient(135deg, var(--tl-accent), var(--tl-accent-2)); box-shadow: 0 12px 30px rgba(37,99,235,.4); }
.splash-eyebrow { margin: 14px 0 4px; font-size: .74rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--tl-accent); }
.splash-card h1 { font-size: clamp(1.35rem, 3vw, 1.9rem); font-weight: 900; margin: 0 0 10px; }
.splash-text { color: var(--tl-muted); margin: 0 auto 16px; max-width: 500px; }
.splash-points { list-style: none; padding: 0; margin: 0 0 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; text-align: start; }
.splash-points li { background: var(--tl-bg-2); border-radius: 10px; padding: 8px 12px; font-size: .82rem; font-weight: 700; }
.splash-points i { color: var(--tl-accent); width: 18px; }
.splash-formula { display: inline-block; margin-bottom: 14px; padding: 6px 14px; border-radius: 10px; background: var(--tl-accent-soft); color: var(--tl-accent); font-weight: 800; }
.splash-restored { background: var(--tl-ok-soft); color: var(--tl-ok); border-radius: 10px; padding: 8px 12px; font-weight: 700; font-size: .84rem; }
.splash-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.splash-back { color: var(--tl-muted); font-size: .84rem; text-decoration: none; }
.splash-back:hover { color: var(--tl-accent); }
.tlab.is-intro .tlab-grid { filter: blur(2px); }
.tlab-noscript { position: absolute; inset: 0; display: grid; place-items: center; background: var(--tl-bg); font-weight: 800; z-index: 50; }

/* ------------------------------------------------------------ animatsiya */
@keyframes tl-fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@keyframes tl-rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes tl-row { from { opacity: 0; background: var(--tl-accent-soft); } to { opacity: 1; } }
@keyframes tl-pulse { 0%, 100% { box-shadow: 0 0 0 3px var(--tl-accent-soft); } 50% { box-shadow: 0 0 0 7px transparent; } }
@keyframes tl-blink { 50% { opacity: .2; } }
@keyframes tl-spin { to { transform: rotate(360deg); } }
@keyframes tl-toast { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }
@keyframes tl-draw { to { stroke-dashoffset: 0; } }
@keyframes tl-cart { 0% { left: 6%; } 85% { left: calc(94% - 64px); } 100% { left: calc(94% - 64px); opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .tlab *, .tlab *::before, .tlab *::after { animation: none !important; transition: none !important; }
  .shape__line { stroke-dashoffset: 0; }
}

/* ------------------------------------------------------------- moslashuv */
@media (max-width: 1280px) {
  .tlab-grid { grid-template-columns: 270px minmax(0, 1fr) 220px; }
  .stepbar { display: none; }
}
@media (max-width: 1024px) {
  .tlab { overflow-y: auto; }
  .tlab-grid {
    grid-template-columns: minmax(0, 1fr); grid-template-rows: none;
    grid-template-areas: "stage" "read" "side" "dock";
  }
  /* Ustunlar ketma-ket — balandlik kontentga qarab, sahifa o'zi aylanadi */
  .tlab-grid { flex: 0 0 auto; }
  .tlab-side, .tlab-read { overflow: visible; }
  .tlab-stage { height: 62vh; min-height: 340px; }
  .tlab-read .readout { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
  .tlab-dock { min-height: 70vh; }
  .tlab-brand__text small { display: none; }
  .table-layout, .theory-split { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .tlab-top { flex-wrap: wrap; gap: 8px; padding: 8px; }
  .tlab-top__right { flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
  [data-fullscreen] { display: none; }
  .tb-text { display: none; }
  .tlab-brand { order: 3; width: 100%; }
  .tlab-grid { padding: 8px; gap: 8px; }
  .tlab-stage { height: 52vh; }
  .rep-form, .splash-points { grid-template-columns: 1fr; }
  .shapes, .sheet__charts { grid-template-columns: 1fr; }
  .sheet { padding: 18px; }
  .stage-controls .tbtn { flex: 1 1 auto; }
}

/* --------------------------------------------------------------- chop etish */
@media print {
  body * { visibility: hidden !important; }
  .tlab, .tlab .sheet, .tlab .sheet * { visibility: visible !important; }
  .tlab { position: static; display: block; background: #fff; overflow: visible; }
  .tlab .sheet { position: absolute; left: 0; top: 0; width: 100%; max-width: none; box-shadow: none; border: 0; padding: 0; }
  .splash, .tlab-toast { display: none !important; }
}