/* Experiment Lab — единая тёплая тема. Mobile-first адаптация без слоёв-«заплаток». */
:root{
  --bg:#f4ebe0;--bg2:#ecdfd0;--surface:#fffaf3;--surface2:#f8efe4;--surface3:#f1e3d4;
  --ink:#46372e;--ink2:#7a6556;--ink3:#8f7a6b;
  --line:rgba(104,74,55,.14);--line2:rgba(104,74,55,.26);
  --accent:#b7694f;--accent2:#d18a62;--accent-ink:#8e503b;--accent-soft:rgba(199,123,84,.13);
  --ok:#5f8a69;--ok-soft:rgba(95,138,105,.14);--gold:#b98422;
  --radius:16px;--shadow:0 10px 30px rgba(94,63,42,.10);
  --nav-h:62px;--top-h:58px;
  --safe-b:env(safe-area-inset-bottom,0px);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);background:var(--bg);
  -webkit-text-size-adjust:100%;text-size-adjust:100%;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{background:var(--bg);scroll-padding-top:calc(var(--top-h) + 10px)}
body{margin:0;min-height:100vh;min-height:100dvh;background:radial-gradient(circle at 50% -10%,#fffaf1 0,var(--bg) 46%,var(--bg2) 100%);color:var(--ink);font-size:15px;line-height:1.45;overflow-x:hidden}
body.modal-open{overflow:hidden}
button,input{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation}
h1,h2,h3,p{margin:0}
svg{display:block}
.hidden{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}

/* ---------- базовые элементы ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.kicker{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3)}
.label,.brief-label{display:block;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border-radius:12px;border:1px solid var(--line2);background:var(--surface);color:var(--ink);font-weight:700;font-size:14px;text-decoration:none;transition:background .15s,transform .1s}
.btn:hover{background:var(--surface3)}.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.5;cursor:default}
.btn.primary{background:linear-gradient(135deg,var(--accent2),var(--accent));border-color:transparent;color:#fff9f2;box-shadow:0 8px 20px rgba(176,91,59,.22)}
.btn.primary:hover{filter:brightness(1.05)}
.btn.small{min-height:40px;padding:8px 12px;font-size:13px}
.btn.big{min-height:52px;padding:14px 22px;font-size:16px}
.btn.block{display:flex;width:100%}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}
.link-btn{background:none;border:0;padding:6px 4px;color:var(--accent-ink);font-weight:700;font-size:13px;text-decoration:underline;text-underline-offset:3px;min-height:32px}
.close-btn{position:absolute;right:12px;top:12px;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface2);color:var(--ink2);font-size:24px;line-height:1;z-index:2}

/* ---------- шапка ---------- */
.topbar{position:sticky;top:0;z-index:30;height:var(--top-h);padding:0 22px;display:flex;align-items:center;gap:20px;background:var(--bg);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;color:inherit;text-decoration:none;flex:none}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--accent)}
.brand-mark svg{width:24px}
.brand-text b{display:block;font-size:14px;letter-spacing:.06em;text-transform:uppercase}
.brand-text small{display:block;font-size:11px;color:var(--ink3);margin-top:1px}
.tools{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.career{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:13px}
.career b{font-weight:800}.career span{color:var(--gold);font-weight:800}
.account-menu{position:relative}
.account-menu summary{list-style:none;cursor:pointer;display:block}
.account-menu summary::-webkit-details-marker{display:none}
.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent2),var(--accent));color:#fff9f2;font-weight:800}
.menu-pop{position:absolute;right:0;top:calc(100% + 8px);width:250px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 16px 40px rgba(94,63,42,.2);padding:8px;z-index:40}
.menu-who{padding:8px 10px 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.menu-who b{display:block;font-size:14px}.menu-who small{display:block;color:var(--ink3);font-size:12px;margin-top:2px}
.menu-item{display:flex;align-items:center;width:100%;min-height:44px;padding:10px;border:0;background:none;border-radius:10px;text-align:left;font-size:14px;font-weight:600;color:var(--ink);text-decoration:none}
.menu-item:hover{background:var(--surface3)}

/* навигация (десктоп — в шапке) */
.main-nav{display:flex;gap:4px;margin:0 auto}
.nav-btn{display:flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid transparent;border-radius:12px;background:none;color:var(--ink2);font-weight:700;font-size:14px}
.nav-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-btn:hover{background:var(--surface);color:var(--ink)}
.nav-btn.active{background:var(--accent-soft);border-color:rgba(194,128,93,.28);color:var(--accent-ink)}
.lbl-short{display:none}

/* ---------- лендинг ---------- */
.landing{min-height:calc(100dvh - var(--top-h));display:grid;place-items:center;padding:28px 16px 48px}
.landing-card{width:min(880px,100%);padding:44px 40px;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}
.lab-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border-radius:999px;background:var(--accent-soft);border:1px solid rgba(194,128,93,.24);font-size:12px;letter-spacing:.06em;color:var(--accent-ink);font-weight:800;text-transform:uppercase}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px var(--ok-soft)}
.hero-scene{height:230px;margin:8px auto 0}.hero-scene svg{width:min(640px,100%);height:100%;margin:auto}
.landing h1{font-size:clamp(34px,7vw,58px);line-height:1.05;margin:4px 0 16px;letter-spacing:-.04em}
.landing h1 span{color:var(--accent)}
.landing p{max-width:600px;margin:0 auto;color:var(--ink2);font-size:17px;line-height:1.6}
.landing-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-note{margin-top:16px;color:var(--ink3);font-size:13px}

/* ---------- каркас приложения ---------- */
.app{max-width:1360px;margin:0 auto;padding:16px 22px 40px}
.tab{display:none}.tab.active{display:block}

/* полоса миссии */
.mission{padding:14px 20px 16px;display:grid;grid-template-columns:1fr auto;gap:2px 20px;align-items:start;position:relative;overflow:hidden}
.mission-top{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:10px}
.mission-meta{display:flex;align-items:center;gap:12px}
.mission-meta b{color:var(--gold);font-size:15px}
.mission h2{grid-column:1/-1;font-size:22px;letter-spacing:-.02em;line-height:1.2}
.mission-text{grid-column:1/-1;color:var(--ink2);font-size:14px;max-width:760px}
.steps{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.goal-chip{padding:6px 11px;border:1px solid var(--line);background:var(--surface2);border-radius:999px;color:var(--ink2);font-size:13px;font-weight:600;white-space:nowrap}
.goal-chip.done{background:var(--ok-soft);border-color:rgba(95,138,105,.35);color:#3f6b4b}
.xp{position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--line)}
.xp i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent2),var(--accent));transition:width .4s}
@media(min-width:1100px){
  .mission{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr) auto;grid-template-rows:auto auto auto;column-gap:28px;padding:14px 20px 18px}
  .mission-top{display:contents}
  .mission-top .kicker{grid-column:1;grid-row:1}
  .mission h2{grid-column:1;grid-row:2}
  .mission-text{grid-column:1;grid-row:3}
  .steps{grid-column:2;grid-row:1/4;align-self:center;margin:0}
  .mission-meta{grid-column:3;grid-row:1/4;align-self:center;flex-direction:column;align-items:flex-end;gap:2px}
}

/* сетка лаборатории: реактивы | стол | подсказки */
.lab-grid{display:grid;grid-template-columns:250px minmax(0,1fr) 320px;gap:14px;margin-top:14px;align-items:start}
.stage{min-width:0}
.side{display:grid;gap:12px;align-content:start}

/* реактивы */
.reagents{padding:12px;position:sticky;top:calc(var(--top-h) + 12px);max-height:calc(100dvh - var(--top-h) - 28px);display:flex;flex-direction:column}
.reagents-head{display:grid;gap:10px;margin-bottom:10px}
.reagents-head strong{font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:4px}
.chips button{border:1px solid transparent;background:none;border-radius:999px;padding:6px 11px;font-size:13px;font-weight:600;color:var(--ink2);white-space:nowrap;min-height:34px}
.chips button:hover{background:var(--surface3)}
.chips button.active{background:var(--accent-soft);border-color:rgba(194,128,93,.3);color:var(--accent-ink)}
.material-list{display:grid;grid-auto-rows:max-content;gap:6px;overflow-y:auto;padding:2px 4px 2px 2px;margin:-2px -4px -2px -2px;overscroll-behavior:contain}
.reagent{display:grid;grid-template-columns:36px minmax(0,1fr);align-items:center;gap:10px;padding:7px 9px;border:1px solid var(--line);background:var(--surface2);border-radius:12px;text-align:left;color:var(--ink);min-height:48px;transition:border-color .15s,background .15s,transform .1s}
.reagent:hover,.reagent.dragging{border-color:rgba(194,122,85,.5);background:var(--surface3)}
.reagent:active{transform:scale(.98)}
.reagent-icon{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--surface3);color:var(--accent)}
.reagent-svg{width:26px;height:26px}
.reagent-text{min-width:0}
.reagent-text b{display:block;font-size:13px;font-weight:700;line-height:1.2}
.reagent-text small{display:block;color:var(--ink3);font-size:11px;margin-top:2px}
.reagent.is-next{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 3px rgba(183,105,79,.16)}

/* стол */
.stage-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.seg{display:flex;padding:3px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.seg button{border:0;background:none;padding:8px 13px;border-radius:9px;font-size:13px;font-weight:700;color:var(--ink2);min-height:36px;white-space:nowrap}
.seg button:hover{color:var(--ink)}
.seg button.active{background:var(--accent-soft);color:var(--accent-ink);box-shadow:inset 0 0 0 1px rgba(194,128,93,.3)}
.stage-actions{display:flex;gap:8px}

.bench{position:relative;width:100%;aspect-ratio:59/54;max-height:calc(100dvh - 350px);min-height:400px;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:radial-gradient(circle at 50% 42%,#fff7ec 0,#f3e2d1 58%,#e6d0bb 100%);box-shadow:inset 0 0 70px rgba(136,91,60,.10)}
.lab-scene{position:absolute;inset:0;width:100%;height:100%}
.bench-caption{position:absolute;left:12px;top:12px;z-index:3;padding:5px 10px;border-radius:999px;background:rgba(255,250,243,.9);border:1px solid var(--line);font-size:12px;font-weight:700;color:var(--ink2)}
.readouts{position:absolute;right:12px;top:12px;z-index:3;display:flex;gap:6px}
.readout{position:relative;display:flex;align-items:baseline;gap:5px;padding:5px 10px;border-radius:999px;background:rgba(255,250,243,.92);border:1px solid var(--line);font-size:12px;overflow:hidden}
.readout span{color:var(--ink3);font-weight:700}
.readout b{font-size:13px;font-variant-numeric:tabular-nums}
.readout-bar{display:none}
.readout-bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}
.mode-chip{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);z-index:3;max-width:calc(100% - 24px);padding:6px 14px;border-radius:999px;background:rgba(255,250,243,.94);border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--ink2);text-align:center}
.mode-chip span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drop-overlay{position:absolute;left:50%;top:27%;max-width:80%;transform:translate(-50%,-50%);z-index:4;padding:12px 22px;border:2px dashed rgba(183,105,79,.5);border-radius:14px;background:rgba(255,250,243,.94);pointer-events:none;opacity:0;transition:opacity .15s}
.drop-overlay b{font-size:14px;color:var(--accent-ink);line-height:1.3;display:block;text-align:center}
.bench.is-empty .drop-overlay,.bench.drag-over .drop-overlay{opacity:1}
.drop-overlay .hint-mouse{display:none}
@media(hover:hover) and (pointer:fine){.drop-overlay .hint-touch{display:none}.drop-overlay .hint-mouse{display:block}}
.pour-stream{position:absolute;left:50%;top:8%;width:4px;height:0;margin-left:-2px;background:linear-gradient(#fff,#7fb8e8);border-radius:99px;z-index:2;box-shadow:0 0 8px rgba(127,184,232,.7)}
.pour-stream.pouring{animation:pour .65s ease-out}
.reaction-burst{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%) scale(.2);z-index:8;opacity:0;pointer-events:none;mix-blend-mode:multiply}
.reaction-burst span{position:relative;z-index:2;display:grid;place-items:center;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,#ffd98a,rgba(255,180,90,.35) 45%,transparent 68%);font-weight:900;font-size:15px;color:#7a3a1d}
.reaction-burst i{position:absolute;width:8px;height:8px;border-radius:50%;background:#e8a24a;top:50%;left:50%}
.reaction-burst i:nth-child(2){transform:rotate(20deg) translateX(90px)}
.reaction-burst i:nth-child(3){transform:rotate(150deg) translateX(100px)}
.reaction-burst i:nth-child(4){transform:rotate(265deg) translateX(100px)}
.reaction-burst.active{animation:burstFlash .9s ease-out}
.svg-bubble{animation:riseSvg 1.7s ease-out both}
.svg-snowflake{animation:snowFloat 1.7s ease-in-out infinite alternate;transform-box:fill-box;transform-origin:center}
.shake-stage .lab-scene{animation:shakeStage .7s ease}
.stir-stage .lab-scene{animation:stirStage .7s ease}
.danger-shake{animation:dangerShake .08s linear 14}

/* панель действий под столом */
.tray{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.tray button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;min-height:60px;padding:8px 4px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);font-size:13px;font-weight:700;transition:background .15s,transform .1s,border-color .15s}
.tray button:hover{background:var(--surface3)}.tray button:active{transform:scale(.97)}
.tray svg{width:22px;height:22px;fill:none;stroke:var(--accent);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.tray button.is-next{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 3px rgba(183,105,79,.16)}

/* правая колонка */
.coach{padding:14px 16px;border-left:4px solid var(--accent)}
.coach-title{font-size:17px;font-weight:800;margin-top:4px;line-height:1.25}
.coach-text{margin-top:6px;color:var(--ink2);font-size:14px;line-height:1.5}
.fold{padding:0}
.fold>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 16px;cursor:pointer;min-height:48px}
.fold>summary::-webkit-details-marker{display:none}
.fold>summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--ink3);border-bottom:2px solid var(--ink3);transform:rotate(45deg);margin:-4px 2px 0 6px;flex:none;transition:transform .2s}
.fold[open]>summary::after{transform:rotate(-135deg);margin-top:4px}
.fold-label{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3);flex:none}
.fold-title{flex:1;min-width:0;text-align:right;font-size:14px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fold[open] .fold-title{display:none}
.fold>summary .link-btn{margin-left:auto}
.explain,.log{padding:0 16px 16px}
.explain b{font-size:15px}
.explain p{font-size:14px;color:var(--ink2);line-height:1.55;margin:5px 0}
.ex-tip{border-left:3px solid var(--accent2);margin-top:8px;padding:6px 10px;background:var(--accent-soft);color:var(--accent-ink);font-size:13px;line-height:1.45;border-radius:0 8px 8px 0}
.log{display:grid;gap:6px;max-height:220px;overflow:auto}
.log-entry{display:grid;grid-template-columns:44px 1fr;gap:8px;font-size:13px}
.log-entry span{color:var(--ink3)}.log-entry b{font-weight:600;color:var(--ink2)}
.empty-log{font-size:13px;color:var(--ink3)}
.safe-note{font-size:12px;color:var(--ink3);line-height:1.5;padding:0 4px}

/* ---------- прочие вкладки ---------- */
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin:6px 2px 18px}
.section-head h1{margin:6px 0;font-size:32px;letter-spacing:-.03em;line-height:1.1}
.section-head p{max-width:640px;color:var(--ink2);font-size:14px}
.section-stat{text-align:right;flex:none}.section-stat b{font-size:26px}.section-stat span{display:block;color:var(--ink3);font-size:12px}
.search-wrap input{width:280px;min-height:46px;border:1px solid var(--line2);background:var(--surface);border-radius:12px;padding:10px 14px;outline:none;font-size:15px}
.search-wrap input:focus{border-color:var(--accent)}

.mission-grid,.encyclopedia-grid,.achievement-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.mission-card{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;padding:16px;align-items:center}
.mission-card.locked{opacity:.5}
.mission-card.done{background:linear-gradient(145deg,#f4faf3,var(--surface));border-color:rgba(95,138,105,.35)}
.mission-card.current{border-color:var(--accent);box-shadow:0 0 0 3px rgba(183,105,79,.14),var(--shadow)}
.mission-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--surface3);color:var(--accent-ink);font-weight:800;font-size:17px}
.done .mission-icon{background:var(--ok-soft);color:#3f6b4b}
.mission-copy>span{font-size:11px;letter-spacing:.1em;font-weight:800;color:var(--ink3)}
.mission-copy h3{margin:2px 0 4px;font-size:17px}
.mission-copy p{color:var(--ink2);font-size:14px;line-height:1.45}
.mission-tags,.tag-row{display:flex;gap:5px;flex-wrap:wrap;margin-top:8px}
.mission-tags i,.tag-row i{font-style:normal;font-size:12px;padding:3px 9px;border-radius:999px;background:var(--surface3);color:var(--ink2)}
.mission-side{display:grid;justify-items:end;gap:8px}
.mission-side>b{color:var(--gold);font-size:15px}
.mission-side button{min-height:40px;padding:8px 14px;border:1px solid var(--line2);background:var(--surface);border-radius:11px;font-size:13px;font-weight:700;color:var(--ink)}
.mission-card.current .mission-side button{background:linear-gradient(135deg,var(--accent2),var(--accent));border-color:transparent;color:#fff9f2}
.mission-side button:disabled{opacity:.5;cursor:not-allowed}

.ency-card{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:16px}
.ency-icon{width:48px;height:48px;border-radius:14px;background:var(--surface3);display:grid;place-items:center;color:var(--accent)}
.ency-main>div:first-child{display:block}
.ency-main span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink3);font-weight:700}
.ency-main h3{margin:2px 0 0;font-size:16px}
.ency-main p{margin:8px 0 6px;font-size:14px;color:var(--ink2);line-height:1.5}
.ency-main small{font-size:12px;color:var(--ink3)}
.empty-state{padding:24px;border-radius:16px;text-align:center;color:var(--ink3);background:var(--surface);border:1px solid var(--line)}

.achievement-card{display:grid;grid-template-columns:50px 1fr auto;gap:14px;align-items:center;padding:14px 16px;opacity:.6}
.achievement-card.unlocked{opacity:1;border-color:rgba(185,132,34,.4)}
.achievement-mark{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--surface3);color:var(--ink3);font-size:20px}
.unlocked .achievement-mark{background:rgba(232,190,90,.25);color:var(--gold)}
.achievement-card span{display:none}
.achievement-card h3{margin:2px 0;font-size:16px}.achievement-card p{color:var(--ink2);font-size:13px}
.achievement-card>b{font-size:11px;color:var(--ink3);letter-spacing:.06em}.unlocked>b{color:var(--ok)}

.quiz-card{min-height:420px;padding:32px}
.quiz-top{display:flex;justify-content:space-between;color:var(--ink3);font-size:13px;font-weight:700}
.quiz-card h2{max-width:760px;margin:24px 0 22px;font-size:26px;line-height:1.25}
.quiz-options{display:grid;gap:10px;max-width:760px}
.quiz-options button{text-align:left;min-height:52px;border:1px solid var(--line);background:var(--surface2);border-radius:14px;padding:13px 16px;font-size:15px}
.quiz-options button:hover{background:var(--surface3);border-color:rgba(194,122,85,.45)}
.quiz-feedback{min-height:64px;margin-top:18px;color:var(--ink2);font-size:14px}.quiz-feedback b{color:var(--accent-ink)}
.quiz-result{text-align:center;padding:40px 10px}
.quiz-big{font-size:64px;font-weight:900;color:var(--accent)}
.quiz-result h2{margin:8px 0}.quiz-result p{color:var(--ink2);font-size:14px}.quiz-result button{margin-top:16px}

/* ---------- модальные окна ---------- */
.modal{position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;padding:16px;background:rgba(56,38,27,.5)}
.modal.open{display:flex;animation:fade .18s ease}
.modal-card{position:relative;width:min(560px,100%);max-height:calc(100dvh - 32px);overflow:auto;overscroll-behavior:contain;padding:26px;border-radius:22px;background:var(--surface);border:1px solid var(--line);box-shadow:0 24px 70px rgba(56,38,27,.35)}
.modal-card h2{font-size:26px;margin:6px 0 4px;letter-spacing:-.02em;padding-right:40px}
.modal-card p{color:var(--ink2);line-height:1.55;font-size:14px}
.complete-spark{font-size:38px;color:var(--gold);line-height:1}
.reward-row{display:flex;gap:12px;align-items:baseline;margin:16px 0}
.reward-row strong{font-size:26px;color:var(--gold)}.reward-row span{color:var(--accent-ink);font-weight:700}
.note-box{margin:0 0 16px;padding:12px 14px;border-radius:12px;background:var(--surface3);display:grid;gap:4px}
.note-box b{font-size:14px}.note-box span{font-size:13px;color:var(--ink2);line-height:1.5}
.tutorial-step{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:16px;border:1px solid var(--line);background:var(--surface2);border-radius:16px;margin-top:14px}
.tutorial-number{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-ink);font-weight:800}
.tutorial-step b{font-size:15px}.tutorial-step p{margin:5px 0 0}
.tutorial-nav{display:flex;align-items:center;justify-content:space-between;margin-top:18px;gap:10px}
#tutorialDots{color:var(--accent);letter-spacing:.1em;font-size:12px}

.mission-brief-card{width:min(820px,100%)}
.brief-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}
.modal-steps{display:grid;gap:8px}
.modal-steps div{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);background:var(--surface2);border-radius:12px}
.modal-steps div>b{flex:0 0 26px;height:26px;display:grid;place-items:center;border-radius:8px;background:var(--accent-soft);color:var(--accent-ink);font-size:13px}
.modal-steps div span{display:grid;gap:2px}
.modal-steps strong{font-size:14px}.modal-steps small{font-size:13px;color:var(--ink2);line-height:1.4}
.mission-science{padding:14px;border:1px solid rgba(193,132,98,.22);background:var(--surface3);border-radius:14px;height:100%}
.mission-science>b{display:block;font-size:15px}
.mission-science p{margin:6px 0 0}
.mission-science .science-result{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);color:var(--ink2);font-size:13px;line-height:1.5}
.brief-watch{margin-top:16px;padding:12px 14px;border-radius:14px;background:var(--accent-soft)}
.brief-watch p{font-size:14px;line-height:1.5;color:var(--ink)}
.brief-ingredients{margin-top:14px;border:1px solid var(--line);border-radius:14px;background:var(--surface2)}
.brief-ingredients>summary{list-style:none;cursor:pointer;padding:12px 14px;font-weight:700;font-size:14px;display:flex;justify-content:space-between;min-height:46px;align-items:center}
.brief-ingredients>summary::-webkit-details-marker{display:none}
.brief-ingredients>summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--ink3);border-bottom:2px solid var(--ink3);transform:rotate(45deg)}
.brief-ingredients[open]>summary::after{transform:rotate(-135deg)}
.ingredient-explain{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:0 12px 12px}
.ingredient-card{display:grid;grid-template-columns:38px 1fr;gap:10px;padding:10px;border:1px solid var(--line);background:var(--surface);border-radius:12px}
.ingredient-icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:var(--surface3);color:var(--accent)}
.ingredient-icon svg{width:24px;height:24px}
.ingredient-card b{display:block;font-size:14px}.ingredient-card p{margin:3px 0 0;font-size:13px;line-height:1.4;color:var(--ink2)}
.sticky-cta{position:sticky;bottom:-26px;margin-top:18px;z-index:3;box-shadow:0 -14px 16px -6px var(--surface),0 8px 20px rgba(176,91,59,.22)}

.learning-card{width:min(720px,100%)}
.learning-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-top:2px}
.learning-head h2{margin:0;font-size:24px}
.learning-head p{margin:6px 0 0;font-size:14px}
.learning-head>span{font-size:13px;font-weight:800;color:var(--accent-ink);padding:6px 10px;border-radius:10px;background:var(--accent-soft);white-space:nowrap;margin-right:44px}
.learning-rate{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.learning-rate button{display:grid;grid-template-columns:36px 1fr;gap:12px;text-align:left;padding:14px;border-radius:14px;border:1px solid var(--line);background:var(--surface2);min-height:72px}
.learning-rate button:hover{background:var(--surface3);border-color:rgba(194,125,91,.45)}
.learning-rate button>b{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-ink)}
.learning-rate strong{display:block;font-size:15px}.learning-rate small{display:block;margin-top:3px;font-size:13px;line-height:1.4;color:var(--ink2)}
.learning-explanation{margin-top:14px}
.learning-summary{display:grid;grid-template-columns:1.1fr .9fr;gap:14px;padding:14px;border:1px solid var(--line);background:var(--surface2);border-radius:14px}
.learning-summary-main h3{font-size:18px}
.learning-summary-main .equation{margin-top:8px;padding:9px 11px;border-radius:10px;background:var(--surface3);color:var(--accent-ink);font:700 13px ui-monospace,SFMono-Regular,monospace;overflow:auto}
.learning-summary-main p{font-size:14px;line-height:1.5;color:var(--ink2);margin-top:8px}
.learn-observe{margin-top:10px;padding:10px 12px;border-radius:10px;background:var(--accent-soft);color:var(--ink2);font-size:13px;line-height:1.5}.learn-observe b{color:var(--ink)}
.learn-ingredients{display:grid;gap:8px;align-content:start}
.learn-ingredient{padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:var(--surface)}
.learn-ingredient strong{font-size:14px}.learn-ingredient span{margin-left:6px;color:var(--ink3);font:700 12px ui-monospace,monospace}
.learn-ingredient p{margin:4px 0 0;color:var(--ink2);font-size:13px;line-height:1.4}
.learning-question{margin-top:18px;padding:16px;border-radius:16px;border:1px solid var(--line);background:var(--surface2)}
.learning-question>h3{margin:4px 0 14px;font-size:18px;line-height:1.3}
.learning-answers{display:grid;gap:8px}
.learning-answers button{padding:13px 14px;text-align:left;border-radius:12px;border:1px solid var(--line);background:var(--surface);font-size:15px;min-height:50px}
.learning-answers button:hover:not(:disabled){background:var(--surface3);border-color:rgba(194,125,91,.45)}
.learning-answers button:disabled{opacity:.7;cursor:default}
.learning-feedback{margin-top:12px}
.learning-feedback b{font-size:14px;color:#b5573b}.learning-feedback b.good{color:var(--ok)}
.learning-feedback p,.feedback-explain{margin:6px 0 0;color:var(--ink2);font-size:14px;line-height:1.5}
.feedback-explain{padding:9px 12px;background:var(--accent-soft);border-radius:10px}
.learning-result{text-align:center;padding:10px 2px}
.learning-result-icon{font-size:48px;color:var(--ok);line-height:1.1}
.learning-result h3{margin:8px 0 0;font-size:20px}
.learning-result p{margin:8px auto 0;max-width:460px}
#learningNext,#learningRetry{margin-top:16px}
#learningResult{margin-top:14px;padding:20px 14px;border-radius:16px;background:var(--surface2);border:1px solid var(--line)}
#learningExplanation:not(.hidden)+.learning-question,#learningExplanation:not(.hidden)~#learningResult{margin-top:14px}
.learning-answers button.right{border-color:var(--ok);background:var(--ok-soft);opacity:1}
.learning-answers button.wrong{border-color:#c4523a;background:#c4523a14;opacity:1}

/* аварийный экран: всегда на весь экран */
.danger-screen{position:fixed;inset:0;z-index:80;display:none;overflow:auto;padding:18px;background:radial-gradient(circle at 50% 40%,rgba(196,57,37,.55),rgba(31,13,9,.96) 62%)}
.danger-screen.active{display:grid;place-items:center;animation:fade .2s ease}
.danger-card{width:min(600px,100%);padding:26px;border-radius:24px;text-align:center;background:#3b1711f2;border:1px solid rgba(255,176,149,.3);box-shadow:0 30px 90px rgba(76,24,12,.5)}
.danger-core{font-size:clamp(44px,14vw,84px);font-weight:900;letter-spacing:.06em;color:#fff;text-shadow:0 0 30px #ff7e54,0 0 90px #ff2f17;animation:dangerPulse .25s ease-in-out infinite alternate}
.danger-card h2{margin:6px 0;color:#ffe3d8;font-size:22px}
.danger-card p{color:#f0bcae;font-size:15px;line-height:1.5;margin:8px auto}
.danger-consequence{margin:16px 0 10px;padding:13px 14px;text-align:left;border-radius:14px;background:rgba(255,177,151,.09);border:1px solid rgba(255,177,151,.2)}
.danger-consequence b{display:block;color:#ffd2c5;font-size:11px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:5px}
.danger-consequence span{color:#ecc0b3;font-size:14px;line-height:1.5}
.danger-tip{color:#c9a196;font-size:13px;line-height:1.5;margin:10px 0 18px}
.danger-card .btn{background:rgba(255,176,149,.12);border-color:rgba(255,176,149,.4);color:#ffece6;width:100%}

.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;z-index:90;max-width:min(92vw,460px);padding:11px 16px;border-radius:12px;border:1px solid var(--line2);background:#3f2f26;color:#fff4ea;font-size:14px;text-align:center;transition:.25s;pointer-events:none;box-shadow:0 14px 40px rgba(56,38,27,.35)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.good{background:#3d5a46}
body.modal-open .toast{bottom:auto;top:calc(12px + env(safe-area-inset-top,0px));transform:translate(-50%,-16px)}
body.modal-open .toast.show{transform:translate(-50%,0)}
.log-foot{padding:0 16px 14px}
.log-foot .link-btn{padding-left:0}

@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes sheetUp{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
@keyframes pour{0%{height:0;opacity:0}25%{opacity:1;height:26%}70%{height:30%;opacity:1}100%{height:30%;opacity:0}}
@keyframes riseSvg{0%{transform:translateY(0);opacity:0}15%{opacity:.8}100%{transform:translateY(-110px);opacity:0}}
@keyframes snowFloat{from{transform:translateY(-3px)}to{transform:translateY(7px)}}
@keyframes shakeStage{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px) rotate(-.5deg)}50%{transform:translateX(5px) rotate(.5deg)}75%{transform:translateX(-3px)}}
@keyframes stirStage{0%,100%{filter:none}50%{filter:brightness(1.08) saturate(1.2)}}
@keyframes burstFlash{0%{opacity:0;transform:translate(-50%,-50%) scale(.3)}12%{opacity:1;transform:translate(-50%,-50%) scale(1.18)}30%{opacity:.95;transform:translate(-50%,-50%) scale(1)}100%{opacity:0;transform:translate(-50%,-50%) scale(1.35)}}
@keyframes dangerPulse{from{opacity:.8;transform:scale(.96)}to{opacity:1;transform:scale(1.03)}}
@keyframes dangerShake{0%,100%{transform:translate(0)}25%{transform:translate(-7px,2px) rotate(-.6deg)}50%{transform:translate(7px,-2px) rotate(.6deg)}75%{transform:translate(-4px,1px)}}

/* =========================================================
   Планшет и ниже (< 1100px): одна колонка
   ========================================================= */
@media(max-width:1099px){
  .app{max-width:760px;padding:12px 14px calc(var(--nav-h) + var(--safe-b) + 24px)}
  .lab-grid{display:flex;flex-direction:column;align-items:stretch;gap:12px}
  .lab-grid>*{min-width:0}
  .side{display:contents}
  /* порядок: стол → что делать → реактивы → пояснения */
  .stage{order:1}.coach{order:2}.reagents{order:3}#explainFold{order:4}.fold-log{order:5}.safe-note{order:6}
  .reagents{position:static;max-height:none;display:block}
  .bench{max-height:62dvh;min-height:0}
}

/* Узкий десктоп / планшет: короткие подписи в верхней навигации */
@media(max-width:1199px){
  .brand-text{display:none}
  .lbl-full{display:none}.lbl-short{display:inline}
  .nav-btn{padding:8px 11px}
}

/* Мобильная нижняя навигация и компактная шапка (< 900px) */
@media(max-width:899px){
  :root{--top-h:54px}
  .topbar{padding:0 14px;gap:10px}
  .brand-text small{display:none}
  .brand-text b{font-size:13px}
  .career{padding:5px 10px;font-size:12px}
  .main-nav{position:fixed;left:0;right:0;bottom:0;z-index:35;margin:0;gap:0;height:calc(var(--nav-h) + var(--safe-b));padding:6px 6px var(--safe-b);display:grid;grid-template-columns:repeat(5,1fr);background:var(--surface);border-top:1px solid var(--line2);box-shadow:0 -6px 24px rgba(94,63,42,.08)}
  .nav-btn{flex-direction:column;justify-content:center;gap:3px;padding:4px 2px;border-radius:12px;font-size:11px;font-weight:700;min-width:0}
  .nav-btn svg{width:23px;height:23px}
  .nav-btn span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .lbl-full{display:none}.lbl-short{display:inline}
  .nav-btn.active{background:var(--accent-soft);border-color:transparent}
  .toast{bottom:calc(var(--nav-h) + var(--safe-b) + 14px)}
}

/* Телефон (< 640px) */
@media(max-width:639px){
  body{font-size:15px}
  .app{padding:10px 12px calc(var(--nav-h) + var(--safe-b) + 20px)}
  .landing{padding:14px 12px 32px;align-items:start}
  .landing-card{padding:26px 18px 24px;border-radius:22px}
  .hero-scene{height:160px}
  .landing p{font-size:15px}
  .landing-actions{flex-direction:column}.landing-actions .btn{width:100%}

  .mission{padding:12px 14px 12px;border-radius:14px;gap:2px 12px}
  .mission h2{font-size:19px}
  .mission-text{display:none}
  .steps{flex-wrap:nowrap;overflow-x:auto;margin:8px -14px 0;padding:0 14px 2px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .steps::-webkit-scrollbar{display:none}
  .goal-chip{flex:none}
  .xp{height:3px}
  .mission{padding-bottom:14px}

  .stage-bar{gap:8px;margin-bottom:8px}
  .seg{flex:1}.seg button{flex:1;padding:8px 4px;font-size:13px}
  .stage-actions .btn{width:44px;padding:0}.stage-actions .lbl{display:none}

  .bench{border-radius:16px}
  .bench-caption{left:8px;top:8px;font-size:11px;padding:4px 8px}
  .readouts{right:8px;top:8px;gap:4px}
  .readout{padding:4px 8px;font-size:11px;gap:4px}.readout b{font-size:12px}
  .mode-chip{bottom:8px;font-size:12px;padding:5px 12px}
  .reaction-burst span{width:110px;height:110px;font-size:13px}

  .tray{gap:6px;margin-top:8px}
  .tray button{min-height:56px;font-size:12px;border-radius:12px}

  .coach{padding:12px 14px}.coach-title{font-size:16px}.coach-text{font-size:14px}

  /* реактивы: горизонтальная лента плиток */
  .reagents{padding:12px 0 12px 12px}
  .reagents-head{grid-template-columns:auto 1fr;align-items:center;gap:8px;padding-right:12px}
  .chips{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;justify-content:flex-start}
  .chips::-webkit-scrollbar{display:none}
  .material-list{display:flex;gap:8px;overflow-x:auto;overflow-y:hidden;padding:6px 12px 8px 6px;margin:0 0 0 -6px;scroll-snap-type:x proximity;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .material-list::-webkit-scrollbar{display:none}
  .reagent{flex:0 0 92px;grid-template-columns:1fr;justify-items:center;text-align:center;gap:6px;padding:10px 6px;min-height:104px;scroll-snap-align:start;align-content:start}
  .reagent-text b{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:12px;min-height:29px}
  .reagent-text small{display:none}

  .fold>summary{padding:12px 14px}
  .explain,.log{padding:0 14px 14px}

  .section-head{flex-wrap:wrap;align-items:flex-end;gap:10px;margin-bottom:14px}
  .section-head h1{font-size:26px}
  .section-head p{display:none}
  .section-stat{text-align:right}.section-stat b{font-size:22px}
  .search-wrap{flex-basis:100%}.search-wrap input{width:100%}
  .mission-grid,.encyclopedia-grid,.achievement-grid{grid-template-columns:1fr;gap:10px}
  .mission-card{grid-template-columns:44px 1fr;grid-template-areas:"icon copy" "side side";gap:10px 12px;padding:14px;align-items:start}
  .mission-icon{grid-area:icon;width:42px;height:42px}
  .mission-copy{grid-area:copy}
  .mission-copy p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .mission-tags,.tag-row{display:none}
  .mission-card.locked{grid-template-areas:"icon copy";align-items:center;padding:12px 14px}
  .mission-card.locked .mission-side,.mission-card.locked .mission-copy p{display:none}
  .mission-card.locked .mission-copy h3{margin:0}
  .mission-side{grid-area:side;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:10px}
  .mission-side button{min-width:130px}
  .ency-card{grid-template-columns:44px 1fr;padding:14px;gap:12px}
  .ency-icon{width:44px;height:44px}
  .achievement-card{grid-template-columns:44px 1fr;padding:14px}.achievement-card:not(.unlocked)>b{display:none}
  .quiz-card{padding:20px 16px;min-height:0}
  .quiz-card h2{font-size:21px;margin:18px 0 16px}
  .quiz-big{font-size:52px}

  /* окна → нижние листы */
  .modal{align-items:flex-end;padding:0}
  .modal.open .modal-card{animation:sheetUp .22s ease-out}
  .modal-card{width:100%;max-height:92dvh;border-radius:22px 22px 0 0;padding:22px 16px calc(20px + var(--safe-b))}
  .modal-card h2{font-size:22px}
  .sticky-cta{bottom:calc(-20px - var(--safe-b))}
  .modal-steps small{display:none}
  .modal-steps div{padding:8px 12px;align-items:center}
  .brief-grid,.learning-summary{grid-template-columns:1fr}
  .ingredient-explain,.learning-rate{grid-template-columns:1fr}
  .learning-head h2{font-size:21px}
  .learning-head>span{margin-right:44px}
  .tutorial-nav .btn{padding:10px 14px}
  .danger-screen{padding:12px}.danger-card{padding:20px 16px}.danger-tip{display:none}
}

/* очень узкие экраны */
@media(max-width:359px){
  .brand-text{display:none}
  .readout:nth-child(2){display:none}
  .reagent{flex-basis:84px}
}

/* невысокие экраны в ландшафте */
@media(max-height:520px) and (orientation:landscape) and (max-width:1099px){
  .bench{aspect-ratio:auto;height:72dvh;min-height:240px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}