/* Popov Academy — content-factory/phystech-2025-26-physics-round-1-v1: student labs (loaded only on these pages).
   Base styles shared by all labs; each lab may add visuals/labs/<kind>.css, which assets.mjs appends to this file.
   Colours are local variables. Dark values follow the site's own theme switch (html[data-design=v2] with
   data-theme=dark, or the system dark mode unless data-theme=light) and reuse the site tokens from
   redesign.css, as in the 2025 package; the global theme itself is not changed. */
.arch-lab{min-width:0;--arch-surface:#fff;--arch-ink:#1f2937;--arch-label:#203c58;--arch-muted:#5b6b82;--arch-field-line:#aebed1;--arch-soft-line:#d7e1ed;--arch-primary-bg:#244974;--arch-primary-ink:#fff;--arch-link:#244974;--arch-pressed-bg:#e6eefb;--arch-pressed-line:#244974;--arch-good:#047857;--arch-bad:#b91c1c;--arch-focus:#f59e0b;--arch-fig-line:#1f2937;--arch-grid:#c7d2e0;--arch-fill:#dbeafe;--arch-piece-a:#bfdbfe;--arch-piece-b:#fde68a;--arch-piece-c:#fecaca;--arch-piece-d:#bbf7d0;--arch-accent:#c2410c;--arch-water:#e0f2fe;--arch-ok-bg:#dcfce7;--arch-bad-bg:#fee2e2;--arch-knight:#1d4ed8;--arch-liar:#9f1239;--arch-clear:#e2e8f0}
@media (prefers-color-scheme: dark){:root[data-design="v2"]:not([data-theme="light"]) .arch-lab{--arch-surface:var(--play-stage);--arch-ink:var(--ink);--arch-label:var(--ink);--arch-muted:var(--ink-2);--arch-field-line:var(--ink-3);--arch-soft-line:var(--play-line);--arch-primary-bg:var(--accent);--arch-primary-ink:var(--on-ink);--arch-link:var(--accent-ink);--arch-pressed-bg:var(--accent-soft);--arch-pressed-line:var(--accent);--arch-good:var(--ok);--arch-bad:var(--bad);--arch-fig-line:#dbe4f0;--arch-grid:#4a5568;--arch-fill:#1e3a5f;--arch-piece-a:#1e40af;--arch-piece-b:#854d0e;--arch-piece-c:#9f1239;--arch-piece-d:#166534;--arch-accent:#fb923c;--arch-water:#0c2a3f;--arch-ok-bg:#14341f;--arch-bad-bg:#431818;--arch-knight:#93c5fd;--arch-liar:#fda4af;--arch-clear:#3f4654}}
:root[data-design="v2"][data-theme="dark"] .arch-lab{--arch-surface:var(--play-stage);--arch-ink:var(--ink);--arch-label:var(--ink);--arch-muted:var(--ink-2);--arch-field-line:var(--ink-3);--arch-soft-line:var(--play-line);--arch-primary-bg:var(--accent);--arch-primary-ink:var(--on-ink);--arch-link:var(--accent-ink);--arch-pressed-bg:var(--accent-soft);--arch-pressed-line:var(--accent);--arch-good:var(--ok);--arch-bad:var(--bad);--arch-fig-line:#dbe4f0;--arch-grid:#4a5568;--arch-fill:#1e3a5f;--arch-piece-a:#1e40af;--arch-piece-b:#854d0e;--arch-piece-c:#9f1239;--arch-piece-d:#166534;--arch-accent:#fb923c;--arch-water:#0c2a3f;--arch-ok-bg:#14341f;--arch-bad-bg:#431818;--arch-knight:#93c5fd;--arch-liar:#fda4af;--arch-clear:#3f4654}
.arch-try{margin:18px 0}
.arch-lab [data-arch-lab-body]{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;min-width:0}
.arch-lab .arch-lab-fallback{color:var(--arch-muted);font-size:15px}
.arch-lab label,.arch-lab .arch-label{font-weight:600;color:var(--arch-label)}
.arch-lab .arch-help{font-size:14px;color:var(--arch-muted);margin:0}
.arch-lab .arch-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;min-width:0}
.arch-lab input[type=text],.arch-lab input[type=number],.arch-lab select{font:inherit;font-size:18px;min-height:44px;padding:8px 12px;border:1px solid var(--arch-field-line);border-radius:12px;background:var(--arch-surface);color:var(--arch-ink);min-width:0}
.arch-lab input[type=number]{width:88px}
.arch-lab input[type=range]{flex:1 1 180px;min-width:0;min-height:44px;accent-color:var(--arch-primary-bg)}
.arch-lab button{font:inherit;font-size:16px;min-height:44px;min-width:44px;padding:10px 16px;border-radius:999px;line-height:1.4;max-width:100%;white-space:normal;cursor:pointer}
.arch-lab .arch-primary{background:var(--arch-primary-bg);color:var(--arch-primary-ink);border:1px solid var(--arch-primary-bg)}
.arch-lab .arch-secondary{background:var(--arch-surface);color:var(--arch-link);border:1px solid var(--arch-field-line)}
.arch-lab button[aria-disabled=true]{opacity:.45;cursor:default}
.arch-lab button:focus-visible,.arch-lab input:focus-visible,.arch-lab select:focus-visible,.arch-lab [tabindex]:focus-visible{outline:3px solid var(--arch-focus);outline-offset:2px}
.arch-lab .arch-actions{display:flex;flex-wrap:wrap;gap:8px}
.arch-lab .arch-toggle{display:flex;flex-wrap:wrap;gap:6px}
.arch-lab .arch-toggle button{background:var(--arch-surface);color:var(--arch-link);border:1px solid var(--arch-field-line)}
.arch-lab .arch-toggle button[aria-pressed=true]{background:var(--arch-pressed-bg);border-color:var(--arch-pressed-line);font-weight:600}
.arch-lab .arch-result{background:var(--arch-surface);color:var(--arch-ink);border:1px solid var(--arch-soft-line);border-radius:14px;padding:14px 16px;line-height:1.55;min-width:0;overflow-wrap:anywhere}
.arch-lab .arch-result:empty{display:none}
.arch-lab :is(button,input,select){scroll-margin-block:120px}
.arch-lab .arch-result p{margin:6px 0}
.arch-lab .arch-checks{list-style:none;padding:0;margin:6px 0;display:grid;gap:6px}
.arch-lab .arch-checks li{display:flex;gap:8px;align-items:flex-start}
.arch-lab .arch-pass::before{content:'✓';color:var(--arch-good);font-weight:700;flex-shrink:0;width:1.2em}
.arch-lab .arch-fail::before{content:'✗';color:var(--arch-bad);font-weight:700;flex-shrink:0;width:1.2em}
.arch-lab .arch-good{color:var(--arch-good);font-weight:600}
.arch-lab .arch-bad{color:var(--arch-bad);font-weight:600}
.arch-lab .arch-sub{display:grid;gap:8px;border-top:1px solid var(--arch-soft-line);padding-top:12px}
.arch-lab .arch-stage{background:var(--arch-surface);border:1px solid var(--arch-soft-line);border-radius:8px;padding:8px;min-width:0}
.arch-lab .arch-stage svg{display:block;width:100%;height:auto;max-height:70vh;touch-action:manipulation}
.arch-lab svg text{fill:var(--arch-ink);font-family:system-ui,-apple-system,"Segoe UI",Arial,sans-serif}
.arch-lab .arch-readouts{display:flex;flex-wrap:wrap;gap:8px 18px;margin:0;font-variant-numeric:tabular-nums}
.arch-lab .arch-readouts div{display:flex;gap:6px;align-items:baseline}
.arch-lab .arch-readouts dt{color:var(--arch-muted);font-size:14px}
.arch-lab .arch-readouts dd{margin:0;font-weight:600;color:var(--arch-ink);white-space:nowrap;overflow-wrap:normal}
.arch-lab .arch-table-wrap{overflow-x:auto;max-width:100%}
.arch-lab table.arch-table{border-collapse:collapse;font-variant-numeric:tabular-nums}
.arch-lab table.arch-table th,.arch-lab table.arch-table td{border:1px solid var(--arch-soft-line);padding:4px 8px;text-align:center;color:var(--arch-ink)}
.arch-lab table.arch-table th{color:var(--arch-label);font-weight:600}
.arch-lab .arch-chip{display:inline-flex;align-items:center;justify-content:center;min-width:2.2em;padding:2px 8px;border-radius:999px;border:1px solid var(--arch-soft-line);font-weight:600}
@media(max-width:480px){.arch-lab .arch-row .arch-primary{flex:1 1 100%}.arch-lab button{padding:8px 10px}}
/* shared: play button keeps its width next to a time slider, also on phones */
.arch-lab .arch-timeline{flex-wrap:nowrap}
.arch-lab .arch-timeline .arch-play{flex:0 0 auto;min-width:96px}
/* Inside the «Исследовать» disclosure the lab already has a frame: on phones drop the second one so models keep their width. */
@media (max-width:560px){.lesson-disclosure .arch-lab{padding:0;border:0;background:none;box-shadow:none}.lesson-disclosure .arch-lab .arch-stage{padding:4px}}
/* Phones: «Крупные клетки» (ui.mjs zoomable). Cells keep at least 44 px and the board scrolls sideways in its frame;
   the board geometry is unchanged, only its scale. */
.arch-lab .arch-zoom{min-width:0}
.arch-lab .arch-zoom-tools{margin-bottom:8px}
.arch-lab .arch-zoom-hint{margin:0 0 8px;font-weight:600;color:var(--arch-label)}
.arch-lab .arch-zoom-probe{height:0}
.arch-lab .arch-zoom-scroll{overflow-x:auto;overscroll-behavior-x:contain;padding:4px;min-width:0}
/* shared extras for this package: cell boards built from buttons, a status line that is never hidden under the
   sticky header after a programmatic scroll, and a compact step list */
.arch-lab .arch-board{display:grid;gap:0;justify-content:center;margin:auto}
.arch-lab .arch-cell{aspect-ratio:1;min-width:0;min-height:0;width:100%;padding:0;border-radius:0;background:var(--arch-surface);color:var(--arch-ink);border:1px solid var(--arch-grid);outline-offset:-3px;font-variant-numeric:tabular-nums}
.arch-lab .arch-result{scroll-margin-top:96px;scroll-margin-bottom:96px}
.arch-lab .arch-log{margin:0;padding-left:1.4em;display:grid;gap:4px;font-variant-numeric:tabular-nums}
.arch-lab .arch-legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0;padding:0;list-style:none;font-size:14px;color:var(--arch-ink)}
.arch-lab .arch-legend li{display:flex;align-items:center;gap:6px}

/* Same page presentation as the final 2023–2024 edition on main (GPT polish of 18.10.2026): the shared research
   renderer follows the current site on these pages only. Diagrams keep their light paper; controls and readouts
   follow the selected theme. */
[data-problem-id^="phystech-2025-2026-"] .cf-figure figcaption,
[data-problem-id^="phystech-2025-2026-"] .lesson-source{color:var(--ink-2)}
[data-problem-id^="phystech-2025-2026-"] .lesson-source summary{color:var(--ink)}
[data-problem-id^="phystech-2025-2026-"] :is(button[data-cf-zoom],button[data-cf-scene-zoom]){color:var(--ink);background:var(--play-stage);border-color:var(--ink-3);border-radius:999px;min-height:44px;padding:10px 16px;margin-top:12px;max-width:100%;line-height:1.4}
[data-problem-id^="phystech-2025-2026-"] .interactive-actions button{color:var(--ink);background:var(--play-stage);border-color:var(--ink-3);font-size:16px}
[data-problem-id^="phystech-2025-2026-"] .interactive-actions button[data-action=play]{color:var(--on-ink);background:var(--ink);border-color:var(--ink)}
[data-problem-id^="phystech-2025-2026-"] .interactive-range-row{grid-template-columns:minmax(60px,1fr) 88px}
[data-problem-id^="phystech-2025-2026-"] .cf-number{background:var(--play-stage);color:var(--ink);border-color:var(--ink-3);border-radius:12px;min-height:44px;height:auto;padding:8px 6px;font-size:18px;font-variant-numeric:tabular-nums}
[data-problem-id^="phystech-2025-2026-"] .interactive-range-row input[type=range]{min-height:44px;accent-color:var(--accent)}
[data-problem-id^="phystech-2025-2026-"] .interactive-results>div{background:var(--play-stage);border-color:var(--play-line);border-radius:14px;padding:14px 16px;font-size:16px}
[data-problem-id^="phystech-2025-2026-"] .interactive-results :is(div,span,strong){color:var(--ink)}
[data-problem-id^="phystech-2025-2026-"] .learning-interactive :is(button,input){scroll-margin-block:120px}
/* Keep diagrams readable as diagrams, without the inherited white text outline. */
[data-problem-id^="phystech-2025-2026-"] :is(.cf-figure-svg,.cf-zoom-content) svg text{stroke:none;paint-order:normal}
[data-problem-id^="phystech-2025-2026-"] .cf-figure figcaption button[data-cf-zoom]{display:block;margin:14px auto 0}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:20px 24px;margin:24px 0;border:1px solid var(--play-line);border-radius:var(--r-lg);background:var(--play-bg);color:var(--ink)}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry>div{flex:1 1 240px;min-width:0}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry strong{font-size:17px}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry p{margin:5px 0 0;color:var(--ink-2);font-size:16px;line-height:1.5}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry a{display:inline-flex;gap:12px;align-items:center;min-height:44px;padding:10px 16px;border:1px solid var(--ink-3);border-radius:999px;background:var(--play-stage);color:var(--ink);font:600 16px/1.4 var(--font);text-decoration:none}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry a:hover{border-color:var(--accent);color:var(--accent)}
[data-problem-id^="phystech-2025-2026-"] .arch-model-entry a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
@media(max-width:480px){[data-problem-id^="phystech-2025-2026-"] .arch-model-entry{padding:16px}[data-problem-id^="phystech-2025-2026-"] .arch-model-entry a{width:100%;justify-content:space-between}}

/* ===== Physics controls of this package (visuals/phys.mjs): slider + exact input + large «−»/«+» ===== */
.arch-lab .phx-controls{display:grid;gap:12px;min-width:0}
.arch-lab .phx-params{display:grid;gap:12px;min-width:0}
.arch-lab .phx-param{display:grid;gap:2px;min-width:0;padding:6px 10px;border:1px solid var(--arch-soft-line);border-radius:14px;background:var(--arch-surface)}
.arch-lab .phx-param-label{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline}
.arch-lab .phx-param-name{font-weight:600;color:var(--arch-label)}
.arch-lab .phx-param-bounds{font-weight:400;font-size:13px;color:var(--arch-muted)}
.arch-lab .phx-param .arch-help{font-size:13px}
.arch-lab .phx-param-row{display:grid;grid-template-columns:48px minmax(0,1fr) 48px 84px;gap:8px;align-items:center;min-width:0}
.arch-lab .phx-param-row input[type=range]{width:100%;margin:0}
.arch-lab .phx-step{min-width:48px;min-height:48px;padding:0;font-size:24px;font-weight:600;line-height:1;border-radius:12px}
.arch-lab input.phx-num{width:100%;font-size:18px;min-height:48px;padding:8px 10px;text-align:right;font-variant-numeric:tabular-nums}
.arch-lab .phx-param-msg{margin:0;font-size:14px;color:var(--arch-bad);min-height:0}
.arch-lab .phx-param-msg:empty{display:none}
@media (max-width:420px){
 .arch-lab .phx-param-row{grid-template-columns:48px minmax(0,1fr) 48px;grid-template-areas:"range range range" "minus num plus"}
 .arch-lab .phx-param-row input[type=range]{grid-area:range}
 .arch-lab .phx-param-row .phx-step:first-child{grid-area:minus}
 .arch-lab .phx-param-row .phx-step:nth-child(3){grid-area:plus}
 .arch-lab .phx-param-row input.phx-num{grid-area:num}
}
.arch-lab .phx-presets{display:grid;gap:6px}
.arch-lab .phx-presets-title{margin:0;font-weight:600;color:var(--arch-label)}
.arch-lab .phx-preset[aria-pressed=true]{background:var(--arch-pressed-bg);border-color:var(--arch-pressed-line);font-weight:600}
.arch-lab .phx-preset-state{margin:0;font-size:14px;color:var(--arch-muted)}
.arch-lab .phx-readouts dd.phx-secret{color:var(--arch-muted)}
.arch-lab .phx-time{font-variant-numeric:tabular-nums;font-weight:600;min-width:9em;color:var(--arch-ink)}
.arch-lab .phx-clock{display:grid;gap:6px}
.arch-lab .phx-clock input[type=range]{flex:1 1 160px}
.arch-lab .phx-svg{display:block;width:100%;height:auto}
.arch-lab .phx-stage{padding:4px}
.arch-lab .phx-stage-pair{display:grid;gap:10px;grid-template-columns:minmax(0,1fr)}
@media (min-width:900px){.arch-lab .phx-stage-pair.phx-two{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.arch-lab .phx-choice{display:flex;flex-wrap:wrap;gap:8px}
.arch-lab .phx-note{margin:0;font-size:14px;color:var(--arch-muted)}
/* SVG: theme-aware strokes and fills */
.arch-lab .phx-svg{--phx-a:#1d4ed8;--phx-b:#c2410c;--phx-c:#047857;--phx-d:#7c3aed;--phx-water:#dbeafe;--phx-body:#e2e8f0;--phx-paper:#ffffff}
@media (prefers-color-scheme: dark){:root[data-design="v2"]:not([data-theme="light"]) .arch-lab .phx-svg{--phx-a:#93c5fd;--phx-b:#fdba74;--phx-c:#6ee7b7;--phx-d:#c4b5fd;--phx-water:#0c2a3f;--phx-body:#334155;--phx-paper:transparent}}
:root[data-design="v2"][data-theme="dark"] .arch-lab .phx-svg{--phx-a:#93c5fd;--phx-b:#fdba74;--phx-c:#6ee7b7;--phx-d:#c4b5fd;--phx-water:#0c2a3f;--phx-body:#334155;--phx-paper:transparent}
.arch-lab .phx-svg .phx-line{stroke:var(--arch-fig-line);stroke-width:2;fill:none}
.arch-lab .phx-svg .phx-thin{stroke:var(--arch-fig-line);stroke-width:1;fill:none}
.arch-lab .phx-svg .phx-dash{stroke:var(--arch-muted);stroke-width:1.5;fill:none;stroke-dasharray:5 4}
.arch-lab .phx-svg .phx-body{fill:var(--phx-body);stroke:var(--arch-fig-line);stroke-width:2}
.arch-lab .phx-svg .phx-body-a{fill:var(--phx-a);stroke:var(--arch-fig-line);stroke-width:1.5}
.arch-lab .phx-svg .phx-body-b{fill:var(--phx-b);stroke:var(--arch-fig-line);stroke-width:1.5}
.arch-lab .phx-svg .phx-water{fill:var(--phx-water);stroke:none}
.arch-lab .phx-svg .phx-ground{stroke:var(--arch-fig-line);stroke-width:2.5}
.arch-lab .phx-svg .phx-hatch{stroke:var(--arch-fig-line);stroke-width:1.2}
.arch-lab .phx-svg .phx-grid{stroke:var(--arch-grid);stroke-width:1}
.arch-lab .phx-svg .phx-axis{stroke:var(--arch-fig-line);stroke-width:1.5}
.arch-lab .phx-svg .phx-tick{font-size:12px;fill:var(--arch-muted)}
.arch-lab .phx-svg .phx-axis-label{font-size:13px;font-weight:600}
.arch-lab .phx-svg .phx-text{font-size:15px}
.arch-lab .phx-svg .phx-small{font-size:12.5px}
.arch-lab .phx-svg .phx-big{font-size:18px;font-weight:600}
.arch-lab .phx-svg .phx-curve{fill:none;stroke:var(--phx-a);stroke-width:2.5}
.arch-lab .phx-svg .phx-curve-b{fill:none;stroke:var(--phx-b);stroke-width:2.5}
.arch-lab .phx-svg .phx-curve-c{fill:none;stroke:var(--phx-c);stroke-width:2.5}
.arch-lab .phx-svg .phx-curve-d{fill:none;stroke:var(--phx-d);stroke-width:2.5}
.arch-lab .phx-svg .phx-ghost{fill:none;stroke:var(--arch-muted);stroke-width:1.5;stroke-dasharray:3 4}
.arch-lab .phx-svg .phx-arrow .phx-arrow-shaft{stroke:var(--arch-accent);stroke-width:2.5}
.arch-lab .phx-svg .phx-arrow .phx-arrow-head{fill:var(--arch-accent);stroke:none}
.arch-lab .phx-svg .phx-arrow-a .phx-arrow-shaft{stroke:var(--phx-a);stroke-width:2.5}
.arch-lab .phx-svg .phx-arrow-a .phx-arrow-head{fill:var(--phx-a);stroke:none}
.arch-lab .phx-svg .phx-arrow-b .phx-arrow-shaft{stroke:var(--phx-b);stroke-width:2.5}
.arch-lab .phx-svg .phx-arrow-b .phx-arrow-head{fill:var(--phx-b);stroke:none}
.arch-lab .phx-svg .phx-arrow-c .phx-arrow-shaft{stroke:var(--phx-c);stroke-width:2.5}
.arch-lab .phx-svg .phx-arrow-c .phx-arrow-head{fill:var(--phx-c);stroke:none}
.arch-lab .phx-svg .phx-arrow-ink .phx-arrow-shaft{stroke:var(--arch-fig-line);stroke-width:1.6}
.arch-lab .phx-svg .phx-arrow-ink .phx-arrow-head{fill:var(--arch-fig-line);stroke:none}
.arch-lab .phx-svg .phx-dot{fill:var(--arch-fig-line);stroke:none}
.arch-lab .phx-svg .phx-dot-a{fill:var(--phx-a);stroke:var(--arch-surface);stroke-width:1.5}
.arch-lab .phx-svg .phx-dot-b{fill:var(--phx-b);stroke:var(--arch-surface);stroke-width:1.5}
.arch-lab .phx-svg .phx-dot-c{fill:var(--phx-c);stroke:var(--arch-surface);stroke-width:1.5}
.arch-lab .phx-svg .phx-fill-a{fill:var(--phx-a);fill-opacity:.18;stroke:var(--phx-a);stroke-width:1.5}
.arch-lab .phx-svg .phx-fill-b{fill:var(--phx-b);fill-opacity:.18;stroke:var(--phx-b);stroke-width:1.5}
.arch-lab .phx-svg .phx-fill-c{fill:var(--phx-c);fill-opacity:.18;stroke:var(--phx-c);stroke-width:1.5}
.arch-lab .phx-svg .phx-wire{stroke:var(--arch-fig-line);stroke-width:2.5;fill:none;stroke-linecap:round}
.arch-lab .phx-svg .phx-hot{stroke:var(--phx-b);stroke-width:4;fill:none;stroke-linecap:round}
.arch-lab .phx-svg .phx-cold{stroke:var(--phx-a);stroke-width:4;fill:none;stroke-linecap:round}
.arch-lab .phx-svg .phx-text-a{fill:var(--phx-a);font-weight:600}
.arch-lab .phx-svg .phx-text-b{fill:var(--phx-b);font-weight:600}
.arch-lab .phx-svg .phx-text-c{fill:var(--phx-c);font-weight:600}
.arch-lab .phx-svg text{paint-order:stroke;stroke:var(--arch-surface);stroke-width:3px;stroke-linejoin:round}
.arch-lab .phx-svg .phx-tick,.arch-lab .phx-svg .phx-nohalo{stroke:none}
.arch-lab .phx-drag{cursor:grab;touch-action:none}
.arch-lab .phx-handle{fill:var(--phx-b);fill-opacity:.25;stroke:var(--phx-b);stroke-width:2}
.arch-lab .phx-handle:focus-visible{outline:none;stroke:var(--arch-focus);stroke-width:4}
/* Readouts as a two-column table: long values wrap instead of running off a phone screen. */
.arch-lab .phx-readouts{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:6px 12px;align-items:baseline}
.arch-lab .phx-readouts>div{display:contents}
.arch-lab .phx-readouts dd{white-space:normal;overflow-wrap:anywhere}
.arch-lab .phx-svg .phx-rod{stroke:var(--arch-fig-line);stroke-width:7;stroke-linecap:round;fill:none}
.arch-lab .phx-svg .phx-arrow-g .phx-arrow-shaft{stroke:var(--arch-fig-line);stroke-width:3}
.arch-lab .phx-svg .phx-arrow-g .phx-arrow-head{fill:var(--arch-fig-line);stroke:none}

/* This batch follows the accepted final-v67 mobile layout: scenes and labels
   remain in normal flow. Parameter focus must never be covered by a pinned scene. */
@media (max-width:600px){
 .arch-lab :is(button,input,select,textarea,a[href]){scroll-margin-top:calc(var(--phx-sticky-top,0px) + 16px);scroll-margin-bottom:100px}
 .arch-lab .phx-stage,.arch-lab .phx-cap-pin{position:static;max-height:none}
 .arch-lab .phx-stage .phx-svg{max-height:none}
}
/* Narrow screens (R1-F09): readout names and values in two equal columns, long names may break */
@media (max-width:360px){
 .arch-lab .phx-readouts{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}
 .arch-lab .phx-readouts dt{overflow-wrap:anywhere}
}