/* Лаборатория v4 — вёрстка телефона (html[data-layout="m"]): своя, не адаптация.
 * Экран: шапка · сцена сверху (3D или картинка раздела) · колода карточек во весь
 * экран (свайп вбок, scroll-snap) · вкладки разделов внизу. Страница не прокручивается. */
[data-layout="m"], [data-layout="m"] body { height: 100%; overflow: hidden; overscroll-behavior: none; }
[data-layout="m"] #app {
  height: 100dvh; display: grid;
  grid-template-rows: auto minmax(200px, 42dvh) 1fr auto;
}
[data-layout="m"] .m-top {
  display: flex; align-items: center; gap: 10px; padding: calc(8px + env(safe-area-inset-top, 0px)) 16px 8px;
  background: var(--page); border-bottom: 1px solid var(--line);
}
[data-layout="m"] .m-title { margin: 0 auto 0 4px; font-weight: 700; color: var(--head); font-size: .95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
[data-layout="m"] .lang { padding: 6px 10px; font-size: .8rem; }
[data-layout="m"] .m-visual { position: relative; overflow: hidden; background: radial-gradient(120% 90% at 50% 20%, var(--card) 0%, var(--stage-bg) 70%); }
[data-layout="m"] .stage-m { position: absolute; inset: 0; background: transparent; }
[data-layout="m"] .stage-m.on-dark { background: radial-gradient(120% 90% at 50% 20%, #48413a 0%, #1f1c19 72%); }
[data-layout="m"] .stage-m.on-light { background: radial-gradient(120% 90% at 50% 20%, #ffffff 0%, #e6dfd4 72%); }
/* жесты: в сцене без 3D и в колоде браузер берёт только вертикаль, вбок — наш свайп */
[data-layout="m"] .m-visual, [data-layout="m"] .m-deck { touch-action: pan-y; }
[data-layout="m"] .m-visual { user-select: none; -webkit-user-select: none; }
[data-layout="m"] .stage-hint { top: 10px; bottom: auto; right: 12px; }
/* пока над сценой пилюля «Рушій збирає модель…», подсказка жеста под ней наезжала бы на неё (360 px) — прячем */
[data-layout="m"] .stage:has(.stage-status:not([hidden])) .stage-hint { opacity: 0; }

/* пояснение: поверх сцены — только пилюля статуса; подробности по «Чому?» —
 * нижний лист поверх колоды карточек, сцена с моделью остаётся открытой */
[data-layout="m"] .lab-hud { position: absolute; inset: 0; pointer-events: none; }
[data-layout="m"] .ex-pill { left: 8px; bottom: 8px; max-width: calc(100% - 16px); min-height: 40px; padding: 4px 10px 4px 6px; gap: 6px; }
/* статус проверки — важный текст: на узком экране (uk «Перевірено: усе в межах правил») вторая строка, а не многоточие */
[data-layout="m"] .ex-pill-text { font-size: .84rem; line-height: 1.2; min-width: 0; overflow-wrap: anywhere; }
[data-layout="m"] .explain.open .ex-pill-text { white-space: normal; overflow: visible; text-overflow: clip; }
[data-layout="m"] .explain[data-state="info"] .ex-pill-text { white-space: normal; }
[data-layout="m"] .explain.open .ex-pill { max-width: calc(100% - 16px); }
[data-layout="m"] .ex-drawer {
  position: fixed; top: auto; left: 0; right: 0; bottom: 0; width: auto; z-index: 40;
  max-height: min(56dvh, 480px); border-radius: 20px 20px 0 0; border-width: 1px 0 0;
  padding-bottom: env(safe-area-inset-bottom, 0px); background: var(--card);
  box-shadow: 0 -12px 40px -12px rgb(0 0 0 / 35%);
}
[data-layout="m"] .ex-head::before { content: ""; position: absolute; left: 50%; top: 6px; width: 36px; height: 4px; margin-left: -18px; border-radius: 2px; background: var(--line); }
[data-layout="m"] .ex-head { position: relative; padding-top: 16px; }
[data-layout="m"] .ex-scroll { grid-template-columns: 112px 1fr; gap: 12px; }
[data-layout="m"] .ex-scroll .explain-art { align-self: start; }
[data-layout="m"] .explain[data-state="ok"] .ex-scroll { grid-template-columns: 1fr; }
[data-layout="m"] .explain[data-state="ok"] .explain-art { display: none; }
[data-layout="m"] .explain[data-state="ok"].is-demo .ex-scroll { grid-template-columns: 112px 1fr; }
[data-layout="m"] .explain[data-state="ok"].is-demo .explain-art { display: grid; }
[data-layout="m"] .explain-why { font-size: .9rem; }
[data-layout="m"] .explain-engine { font-size: .82rem; }
[data-layout="m"] .stage-status { top: 10px; font-size: .8rem; }

/* картинки разделов без 3D */
[data-layout="m"] .m-visual > .recipe-visual { position: absolute; inset: 0; padding: 12px 16px; grid-template-columns: minmax(0, 48%) minmax(0, 1fr); gap: 14px; }
[data-layout="m"] .m-visual[data-ch="recipe"] .rc-clock { height: 100%; }
[data-layout="m"] .m-visual[data-ch="recipe"] .clock { width: 100%; max-height: calc(42dvh - 24px); }
[data-layout="m"] .rc-big { font-size: clamp(1.9rem, 9vw, 2.5rem); }
[data-layout="m"] .is-word .rc-unit { font-size: 1.3rem; }
[data-layout="m"] .rc-name { font-size: 1.02rem; }
[data-layout="m"] .rc-next { font-size: .82rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
[data-layout="m"] .curve { max-height: 64px; }
[data-layout="m"] .tl-mark b { display: none; }
[data-layout="m"] .m-visual > .relief-visual { position: absolute; inset: 0; padding: 12px; gap: 8px; }
[data-layout="m"] .rv-disc { width: min(100%, 34dvh); }
[data-layout="m"] .rv-text { font-size: clamp(16px, 6vw, 28px); }
[data-layout="m"] .rv-cut { max-height: 34dvh; }
[data-layout="m"] .how-badge { left: 10px; padding: 4px 12px 4px 4px; }
[data-layout="m"] .how-num { width: 32px; height: 32px; }

/* колода */
[data-layout="m"] .m-deck { position: relative; min-height: 0; display: grid; grid-template-rows: 1fr auto; background: var(--page); }
[data-layout="m"] .m-track {
  display: flex; overflow-x: hidden; overflow-y: hidden; scrollbar-width: none;
  overscroll-behavior-x: contain; min-height: 0;
}
[data-layout="m"] .m-track::-webkit-scrollbar { display: none; }
[data-layout="m"] .m-card {
  flex: 0 0 100%; overflow-y: auto; padding: 16px 16px 8px;
  overscroll-behavior: contain; touch-action: pan-y;
}
[data-layout="m"] .m-deck.is-single .m-deck-nav { display: none; }

/* «Як робиться»: категории во весь экран (сцены нет), потом плеер */
[data-layout="m"] #app.m-cats { grid-template-rows: auto 1fr auto; }
[data-layout="m"] #app.m-cats .m-visual { display: none; }
[data-layout="m"] .how-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
[data-layout="m"] .how-cat-name { font-size: .98rem; padding-top: 8px; }
[data-layout="m"] .how-cat-route { font-size: .74rem; }
[data-layout="m"] .how-player { gap: 12px; flex: 1; grid-template-rows: auto auto 1fr auto; }
[data-layout="m"] .m-card:has(> .how-player) { display: flex; flex-direction: column; padding-bottom: 12px; }
[data-layout="m"] .hp-now { align-self: center; }
[data-layout="m"] .hp-title { display: none; }
[data-layout="m"] .hp-top { flex-wrap: nowrap; }
[data-layout="m"] .hp-route { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
[data-layout="m"] .hp-chips {
  display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; padding: 2px 2px 4px; margin: 0 -2px;
  touch-action: pan-x pan-y; overscroll-behavior-x: contain;
}
[data-layout="m"] .hp-chips::-webkit-scrollbar { display: none; }
[data-layout="m"] .hp-chips li { flex: none; }
[data-layout="m"] .hp-chip { width: auto; min-height: 44px; padding: 6px 14px 6px 6px; gap: 8px; border-radius: 999px; border-color: var(--line); white-space: nowrap; font-size: .9rem; }
[data-layout="m"] .hp-chip .pict { display: none; }
[data-layout="m"] .hp-now { display: grid; gap: 2px; }
[data-layout="m"] .hp-step { font-size: .85rem; font-weight: 700; color: var(--head); }
[data-layout="m"] .hp-name { font: 600 1.3rem/1.2 var(--serif); }
[data-layout="m"] .hp-play { min-width: 104px; }
[data-layout="m"] .how-cap { bottom: 10px; padding: 6px 14px; font-size: .92rem; }
[data-layout="m"] .how-swipe { top: 22px; right: 10px; }
[data-layout="m"] .how-badge { top: 22px; }
[data-layout="m"] .m-card h2 { font-size: 1.35rem; }
[data-layout="m"] .m-card .lead { font-size: 1rem; }
[data-layout="m"] .m-swipe { font-weight: 600; color: var(--accent-ink); animation: nudge 1.6s ease-in-out infinite; }
@keyframes nudge { 50% { transform: translateX(8px); } }
[data-layout="m"] .m-deck-nav { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 16px 8px; }
[data-layout="m"] .m-dots { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
[data-layout="m"] .m-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--line); transition: width .25s var(--ease), background .25s; }
[data-layout="m"] .m-dots i.is-on { width: 20px; border-radius: 4px; background: var(--accent); }
[data-layout="m"] .m-step { display: flex; align-items: center; gap: 16px; margin-bottom: 10px; }
[data-layout="m"] .m-step-n { width: 52px; height: 52px; border-radius: 50%; background: var(--ink); color: var(--page); display: grid; place-items: center; font: 700 1.5rem var(--sans); flex: none; }
[data-layout="m"] .m-pict-lg .pict { width: 72px; height: 72px; color: var(--accent); stroke-width: 1.6; }
[data-layout="m"] .m-step-t { font-size: 1.1rem; color: var(--muted); }
[data-layout="m"] .m-ev { display: flex; gap: 14px; align-items: flex-start; }
[data-layout="m"] .m-ev .pict { width: 52px; height: 52px; color: var(--accent); flex: none; }
[data-layout="m"] .m-ev b { font-size: 1.15rem; }
[data-layout="m"] .m-ev em { font-style: normal; display: inline-block; background: var(--accent-soft); color: var(--accent-ink); border-radius: 999px; padding: 2px 10px; font-weight: 700; margin: 4px 0; }
[data-layout="m"] .m-ev small { font-size: .95rem; color: var(--muted); }
[data-layout="m"] .knobs { gap: 22px; }
[data-layout="m"] .recipe-bar { margin: 10px 0; }

/* вкладки */
[data-layout="m"] .m-tabs {
  display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); background: var(--card);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
[data-layout="m"] .m-tabs button {
  display: grid; justify-items: center; gap: 2px; padding: 8px 2px; min-height: 56px; border: 0; background: none;
  font-size: .72rem; color: var(--muted); cursor: pointer;
}
[data-layout="m"] .m-tabs svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
[data-layout="m"] .m-tabs button.is-on { color: var(--accent-ink); font-weight: 700; }
[data-layout="m"] .m-tabs button.is-on svg { stroke-width: 2.4; }
[data-layout="m"] .ex-pill-chev { transform: rotate(-90deg); }
[data-layout="m"] .explain.open .ex-pill-chev { transform: rotate(90deg); }