:root{
 --bg:#f5f6f3;--surface:#fff;--surface-2:#f0f3ee;--ink:#17261f;--muted:#64746c;--line:#e1e7e2;
 --green:#174a3b;--green-2:#2d6b55;--lime:#d3f281;--lime-ink:#1f3a12;--ok:#2f7d4f;--ok-bg:#ebf6ee;--bad:#b23b33;--bad-bg:#fdf0ee;--warn-bg:#fff6e0;
 --blue-bg:#eef3fb;--radius:14px;--shadow:0 1px 2px #0000000a,0 4px 16px #0000000a;
 font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:16px;line-height:1.55;color:var(--ink);background:var(--bg);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);-webkit-font-smoothing:antialiased}
/* Long words, URLs and sentences never push content outside its box. */
h1,h2,h3,p,li,small,strong,span,label,summary,a,button,td,th,blockquote,.reading{overflow-wrap:anywhere;word-break:normal}
h1,h2,h3{margin:0 0 .4em;line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(1.6rem,3.4vw,2.2rem);font-weight:700}
h2{font-size:1.3rem}
h3{font-size:1.05rem}
p{margin:0 0 .8em}
a{color:var(--green-2)}
small,.small{font-size:.86rem}
.muted{color:var(--muted)}
.grow{flex:1;min-width:0}
.mt{margin-top:24px}.mt-s{margin-top:12px}
.row{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0}
.row.wrap{flex-wrap:wrap}
.stack{display:flex;flex-direction:column;gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.grid-side{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:16px;align-items:start}
.ic{width:20px;height:20px;flex-shrink:0}
.ic.dim{color:#a3b0aa;width:18px;height:18px}
code{background:var(--surface-2);padding:1px 6px;border-radius:6px;font-size:.88em}

/* Buttons and inputs */
button,input,select,textarea{font:inherit;color:inherit}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:11px;border:1px solid var(--line);background:var(--surface);color:var(--green);font-weight:600;text-decoration:none;cursor:pointer;text-align:center;line-height:1.25;max-width:100%}
.btn:hover{border-color:#c5d2ca;background:#fafcf9}
.btn.primary{background:var(--green);border-color:var(--green);color:#fff}
.btn.primary:hover{background:#0f3a2d}
.btn.lime{background:var(--lime);border-color:var(--lime);color:var(--lime-ink)}
.btn.ghost{background:transparent;border-color:transparent}
.btn.ghost:hover{background:var(--surface-2)}
.btn.small{min-height:36px;padding:6px 12px;font-size:.9rem}
.btn.wide{width:100%}
.btn.danger{color:var(--bad)}
.btn small{display:block;font-weight:400;font-size:.78rem;opacity:.8}
.btn:disabled,button:disabled{opacity:.5;cursor:default}
.icon-btn{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--green);cursor:pointer;flex-shrink:0}
.icon-btn:hover{background:var(--surface-2)}
label{display:block;font-weight:600;font-size:.92rem;margin-bottom:4px}
input:not([type=checkbox]):not([type=radio]),select,textarea{display:block;width:100%;margin-top:6px;padding:11px 13px;border:1px solid #cdd8d1;border-radius:10px;background:#fff;font-weight:400;font-size:1rem}
textarea{resize:vertical;line-height:1.6;min-height:110px}
input:focus,select:focus,textarea:focus{outline:none}
input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #9fd3b6;outline-offset:2px}
.link{display:inline;color:var(--green-2);text-decoration:underline;cursor:pointer;font-weight:500}

/* Shell */
.shell{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100vh}
.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:24px 14px;background:var(--surface);border-right:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.12rem;color:var(--ink);text-decoration:none;padding:0 8px}
.brand img{width:32px;height:32px}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:32px}
.nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;color:#4d5f57;text-decoration:none;font-weight:500}
.nav a:hover{background:var(--surface-2)}
.nav a.active{background:#e6f1e6;color:var(--green);font-weight:700}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}
.me{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink);padding:6px 8px;border-radius:10px;min-width:0}
.me:hover{background:var(--surface-2)}
.me>span:last-child{min-width:0}
.me small{display:block;color:var(--muted);font-size:.78rem}
.avatar{width:36px;height:36px;border-radius:50%;background:#dcebdc;display:grid;place-items:center;font-weight:700;flex-shrink:0}
.mobile-top{display:none}
.main{min-width:0}
.content{max-width:960px;margin:0 auto;padding:36px 32px 80px}
.page-head{margin-bottom:22px}
.page-head p{margin:0}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;min-width:0}
.card h3{margin-bottom:10px}
.big{font-size:1.6rem}
.empty{text-align:center;padding:48px 20px;border:1px dashed #cad6ce;border-radius:var(--radius);background:var(--surface);color:var(--muted)}
.empty h2{color:var(--ink)}
.bar{height:8px;background:#e5ece6;border-radius:8px;overflow:hidden;margin:10px 0}
.bar span{display:block;height:100%;background:#5c9e6e;border-radius:8px}
.bar.thin{height:5px;margin:8px 0 0}
.bar.light{background:#ffffff26}.bar.light span{background:var(--lime)}
.tag{display:inline-block;font-size:.74rem;font-weight:600;padding:3px 8px;border-radius:6px;background:var(--surface-2);color:#4d5f57;white-space:nowrap}
.tag-grammar{background:#eef0fb;color:#4a55a2}
.tag-theme{background:#e8f4e8;color:#2e6a3c}

/* Today */
.hero{background:var(--green);color:#fff;border-radius:18px;padding:26px}
.hero h2{font-size:1.7rem;margin:10px 0 4px}
.hero p{color:#c6d8cf;margin:0}
.hero-top{display:flex;justify-content:space-between;align-items:center;gap:10px;color:#bcd2c5;font-size:.88rem}
.hero .tag{background:#ffffff1f;color:#e3efe7}
.hero-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:12px}
.hero-bottom small{display:block;color:#b7cdc1}
.hero-bottom div{min-width:0}
.plan{list-style:none;margin:0;padding:0}
.plan li a{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}
.plan li:last-child a{border:0}
.plan small,.lessons small,.unit-row small{display:block;color:var(--muted);font-size:.84rem}
.kind{color:var(--green-2)}

/* Course */
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 18px}
.tabs button{min-height:40px;padding:8px 16px;border:1px solid var(--line);background:var(--surface);border-radius:10px;font-weight:600;color:var(--muted);cursor:pointer}
.tabs button[aria-selected=true]{background:var(--green);border-color:var(--green);color:#fff}
.small-tabs button{min-height:36px;padding:6px 12px;font-size:.88rem}
.level-head{display:flex;gap:20px;justify-content:space-between;align-items:flex-start;margin-bottom:14px}
.level-head p{margin:0}
.level-progress{width:170px;flex-shrink:0;text-align:right}
.level-progress strong{font-size:1.4rem}
.units{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.unit-row a{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;color:var(--ink);text-decoration:none}
.unit-row a:hover{border-color:#c5d2ca}
.unit-row.cur a{border-color:var(--green-2);box-shadow:0 0 0 1px var(--green-2)}
.num{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--surface-2);font-weight:700;color:#4d5f57;flex-shrink:0}
.unit-row.fin .num{background:var(--ok-bg);color:var(--ok)}
.unit-row.cur .num{background:var(--green);color:#fff}
.unit-title{display:block;font-weight:650}
.unit-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}

/* Module */
.crumbs{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:.88rem;margin-bottom:14px;color:var(--muted)}
.crumbs .ic{width:14px;height:14px}
.crumbs a{text-decoration:none}
.unit-head{margin-bottom:26px}
.unit-head h1{margin-top:6px}
.stage{margin-top:26px}
.stage h2{display:flex;align-items:center;gap:10px;font-size:1.1rem;margin-bottom:10px}
.stage-num{min-width:28px;height:28px;padding:0 6px;border-radius:8px;background:var(--surface-2);display:inline-grid;place-items:center;font-size:.85rem;color:var(--green)}
.stage-num .ic{width:16px;height:16px}
.lessons{list-style:none;margin:0;padding:0;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.lesson-row>a,.lesson-row>div{display:flex;align-items:center;gap:14px;padding:13px 16px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}
.lesson-row:last-child>a,.lesson-row:last-child>div{border:0}
.lesson-row>a:hover{background:#fafcf9}
.lesson-row.locked{opacity:.6}
.lesson-ic{width:36px;height:36px;border-radius:10px;background:var(--blue-bg);color:#4a62a0;display:grid;place-items:center;flex-shrink:0}
.lesson-ic.fin{background:var(--ok-bg);color:var(--ok)}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:22px;flex-wrap:wrap}
.pager .btn{max-width:48%}

/* Lesson */
.lesson-head{margin-bottom:16px}
.lesson-head h1{margin:6px 0 4px}
.topic{color:var(--green-2);font-weight:600;margin:0 0 4px}
.lesson{padding:28px}
.lesson-intro{background:var(--blue-bg);border-radius:10px;padding:12px 14px;color:#34445f}
.section-title{margin-top:28px}
.theory+.theory{border-top:1px solid var(--line);margin-top:24px;padding-top:24px}
.theory h3{margin-top:20px;color:var(--green)}
.form-table{border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:6px 0 10px}
.ft-row{display:grid;grid-template-columns:minmax(110px,30%) minmax(0,1fr);border-bottom:1px solid var(--line)}
.ft-row:last-child{border:0}
.ft-label{background:var(--surface-2);padding:10px 12px;font-weight:600;font-size:.9rem}
.ft-ex{padding:10px 12px;font-family:Georgia,"Times New Roman",serif;font-size:1.04rem}
.form-line{font-size:.92rem;color:#3b4a44;background:var(--surface-2);padding:10px 12px;border-radius:10px}
.signal{font-size:.95rem}
.examples{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.examples li{padding:10px 14px;border-left:3px solid #a9cf8a;background:#fbfcfa;border-radius:0 10px 10px 0}
.examples .en{display:block;font-family:Georgia,"Times New Roman",serif;font-size:1.08rem}
.examples .ru{display:block;color:var(--muted);font-size:.9rem}
.pitfall{margin-top:18px;background:var(--warn-bg);border-radius:10px;padding:12px 14px}
.pitfall p{margin:4px 0 0}
.recap{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:14px 0;background:#fbfcfa}
.recap summary{cursor:pointer;font-weight:600;color:var(--green)}
.recap p{margin:8px 0}
.reading{font-family:Georgia,"Times New Roman",serif;font-size:1.15rem;line-height:1.8;white-space:pre-line;margin:16px 0}
.small-reading{font-size:1rem;background:var(--surface-2);padding:14px;border-radius:10px}
.transcript-box{margin:12px 0;border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.transcript-box summary{cursor:pointer;font-weight:600;color:var(--green)}
.task{background:var(--surface-2);border-radius:12px;padding:14px 16px;margin-bottom:16px}
.task p{margin:6px 0}
.tasks{padding-left:20px}
.tasks li{margin:4px 0}

/* Quiz */
.quiz{display:flex;flex-direction:column;gap:6px}
.q{padding:18px 0;border-top:1px solid var(--line)}
.q:first-child{border-top:0}
.q-prompt{display:flex;gap:10px;font-weight:600;font-size:1.03rem;margin-bottom:12px}
.q-num{width:26px;height:26px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-size:.8rem;flex-shrink:0;margin-top:1px}
.choices{display:grid;gap:8px}
.choice{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:10px 14px;text-align:left;border:1px solid var(--line);border-radius:11px;background:var(--surface);cursor:pointer;line-height:1.35}
.choice::before{content:"";width:18px;height:18px;border-radius:50%;border:2px solid #b8c6be;flex-shrink:0}
.choice:hover{border-color:#b9c9bf}
.choice.on{border-color:var(--green-2);background:#f0f7f1}
.choice.on::before{border:5px solid var(--green-2)}
.choice.ok{border-color:var(--ok);background:var(--ok-bg)}
.choice.bad{border-color:var(--bad);background:var(--bad-bg)}
.answer{max-width:100%}
.answer.ok{border-color:var(--ok);background:var(--ok-bg)}
.answer.bad{border-color:var(--bad);background:var(--bad-bg)}
.fb{margin-top:10px;font-size:.92rem;padding:10px 12px;border-radius:10px}
.fb.ok{background:var(--ok-bg);color:#215c38}
.fb.bad{background:var(--bad-bg);color:#7f2a24}
.builder{display:flex;flex-direction:column;gap:10px}
.built{min-height:54px;display:flex;flex-wrap:wrap;gap:8px;padding:8px;border:2px dashed #c9d6cd;border-radius:12px;align-items:center}
.built.ok{border-style:solid;border-color:var(--ok);background:var(--ok-bg)}
.built.bad{border-style:solid;border-color:var(--bad);background:var(--bad-bg)}
.placeholder{color:#97a69f;font-size:.9rem;padding:0 6px}
.pool{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:40px;padding:6px 14px;border-radius:10px;border:1px solid #cfdcd3;background:var(--surface);font-size:1.02rem;cursor:pointer;font-family:Georgia,"Times New Roman",serif}
.chip:hover{border-color:var(--green-2)}
.chip.on{background:var(--green);border-color:var(--green);color:#fff}
.chip.ghost{border-style:dashed;color:#b9c4be;cursor:default}
.built .chip:disabled,.pool .chip:disabled{opacity:1;cursor:default}
.result{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px;padding:16px;border-radius:12px}
.result small{display:block;color:inherit;opacity:.8}
.result.ok{background:var(--ok-bg);color:#1f5634}
.result.retry{background:var(--warn-bg);color:#6b4b0d}
.rubric{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:18px 0}
.rubric legend{font-weight:700;padding:0 6px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin:8px 0;cursor:pointer}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--green);flex-shrink:0}

/* Words */
.word-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin:14px 0}
.word-card{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;min-width:0}
.word-card>div{min-width:0}
.word-card small{display:block;color:var(--muted)}
.word-list{list-style:none;margin:0;padding:0}
.word-list li{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--line)}
.word-list li>span{min-width:0}
.word-list small{display:block;color:var(--muted)}
.toolbar{display:flex;gap:10px;align-items:flex-start;margin-bottom:14px}
.toolbar input{margin:0;flex:1}
.menu{position:relative}
.menu summary{list-style:none}
.menu summary::-webkit-details-marker{display:none}
.menu-body{position:absolute;right:0;top:calc(100% + 6px);z-index:5;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px;width:240px;box-shadow:var(--shadow)}
.dict{list-style:none;margin:0;padding:0;background:var(--surface);border:1px solid var(--line);border-radius:12px}
.dict li{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line)}
.dict li:last-child{border:0}
.dict small{display:block;color:var(--muted)}
.dict-meta{text-align:right;flex-shrink:0;max-width:30%}
.flash{text-align:center;max-width:560px;margin:20px auto;padding:40px 24px}
.flash h2{font-size:2.2rem;margin:10px 0}
.flash-tr{font-size:1.4rem;color:var(--ok);font-weight:600}
.rate{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:12px}

/* Media */
.player-box{margin:4px 0 14px}
.player-box video,.embed{display:block;width:100%;aspect-ratio:16/9;border:0;border-radius:12px;background:#0f1d18}
.player-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px}
.speed{display:inline-flex;flex-wrap:wrap;gap:4px}
.speed button{min-height:34px;padding:4px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);cursor:pointer;font-size:.86rem}
.speed button[aria-pressed=true]{background:var(--green);color:#fff;border-color:var(--green)}
.badge-ok{display:inline-flex;align-items:center;gap:4px;font-size:.82rem;color:var(--ok);margin-left:auto}
.badge-ok .ic{width:16px;height:16px}
.video-meta{margin-bottom:6px}
.video-meta small{display:block;color:var(--muted)}
.cues{list-style:none;padding:0;margin:8px 0 0;max-height:320px;overflow:auto}
.cues button{display:flex;gap:10px;width:100%;text-align:left;border:0;background:none;padding:6px 8px;border-radius:8px;cursor:pointer;line-height:1.4}
.cues button:hover{background:var(--surface-2)}
.cues button.now{background:#e6f1e6}
.cues .t{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.82rem;flex-shrink:0;padding-top:2px}
.audio{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0}
.audio select{width:auto;margin:0;padding:6px 8px;font-size:.88rem}
.audio.big{background:var(--surface-2);padding:12px;border-radius:12px}
.recorder{display:flex;align-items:center;gap:14px;padding:14px;background:var(--surface-2);border-radius:12px;flex-wrap:wrap}
.recorder small{display:block}
.rec-btn{width:52px;height:52px;border-radius:50%;border:0;background:var(--green);color:#fff;display:grid;place-items:center;cursor:pointer}
.rec-btn.live{background:var(--bad);animation:pulse 1.2s infinite}
@keyframes pulse{50%{opacity:.6}}
.recordings audio{width:100%;margin-top:8px}
.video-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.video-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--ink)}
.video-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#dfe6e1}
.video-card span{padding:10px 12px}
.video-card small{display:block;color:var(--muted)}
.steps{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.steps button{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:6px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;font-size:.9rem}
.steps button .ic{width:16px;height:16px;color:var(--ok)}
.steps button[aria-current=true]{background:var(--green);border-color:var(--green);color:#fff}
.steps button[aria-current=true] .ic{color:var(--lime)}

/* Profile, settings, test */
.choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.pick{display:flex;flex-direction:column;gap:2px;padding:14px;border:1px solid var(--line);border-radius:12px;cursor:pointer;font-weight:400}
.pick input{position:absolute;opacity:0;pointer-events:none}
.pick strong{font-size:1.1rem}
.pick span{color:var(--muted);font-size:.88rem}
.pick.on{border:2px solid var(--green-2);background:#f0f7f1;padding:13px}
.pick:focus-within{outline:3px solid #9fd3b6}
.lvl-row{display:flex;align-items:center;gap:12px;margin:6px 0}
.lvl-row strong{width:30px}
.lvl-list{list-style:none;padding:0}
.lvl-list li{display:grid;grid-template-columns:40px 1fr 50px;gap:10px;align-items:center}
.test{max-width:680px;margin:0 auto}
.test h2{margin-top:10px}
.onboard{max-width:760px;margin:0 auto;padding:32px 20px 60px}
.onboard .brand{margin-bottom:28px;padding:0}
.form-error{color:var(--bad);min-height:1.2em;font-size:.92rem}

/* Auth */
.auth{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}
.auth-side{background:var(--green);color:#fff;padding:48px;display:flex;flex-direction:column;justify-content:space-between;gap:30px}
.auth-side .brand{color:#fff;padding:0}
.auth-side h1{font-size:clamp(2rem,4vw,3.2rem);font-weight:600;max-width:520px}
.auth-side p{color:#c6d8cf;max-width:440px;font-size:1.05rem}
.auth-main{display:grid;place-items:center;padding:40px 24px}
.auth-form{width:100%;max-width:380px;display:flex;flex-direction:column;gap:14px}

/* Toast and dialog */
#toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:#14382c;color:#fff;padding:12px 18px;border-radius:12px;box-shadow:var(--shadow);z-index:50;max-width:min(520px,92vw);transition:.2s}
#toast.show{opacity:1;transform:translate(-50%,0)}
dialog{border:0;border-radius:16px;padding:22px;width:min(480px,94vw);box-shadow:0 10px 40px #0003}
dialog::backdrop{background:#0e221a80}
.loading{padding:80px 20px;text-align:center;color:var(--muted)}

@media (max-width:1000px){
 .shell{grid-template-columns:200px minmax(0,1fr)}
 .content{padding:28px 22px 70px}
 .grid-side{grid-template-columns:1fr}
}
@media (max-width:720px){
 .shell{display:block}
 .sidebar{position:fixed;top:auto;bottom:0;left:0;right:0;height:auto;z-index:20;padding:6px 4px calc(6px + env(safe-area-inset-bottom));border-right:0;border-top:1px solid var(--line)}
 .sidebar>.brand,.side-foot{display:none}
 .nav{flex-direction:row;margin:0;gap:2px}
 .nav a{flex:1;flex-direction:column;gap:2px;padding:6px 2px;font-size:.7rem;text-align:center}
 .mobile-top{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:15}
 .mobile-top .brand{padding:0;font-size:1rem}
 .mobile-top .brand img{width:28px;height:28px}
 .level-badge{background:#e6f1e6;color:var(--green);font-weight:700;padding:4px 10px;border-radius:8px;text-decoration:none}
 .content{padding:20px 16px 100px}
 .grid-2,.choice-grid{grid-template-columns:1fr}
 .card,.lesson{padding:18px}
 .hero{padding:20px}
 .hero h2{font-size:1.4rem}
 .hero-bottom .btn{width:100%}
 .level-head{flex-direction:column;gap:6px}
 .tabs{flex-wrap:nowrap;overflow-x:auto;margin-left:-16px;margin-right:-16px;padding:0 16px 4px;scrollbar-width:none}
 .tabs button{flex-shrink:0}
 .tabs.small-tabs{flex-wrap:wrap;overflow:visible;margin:0 0 12px;padding:0}
 .tabs.small-tabs button{flex-shrink:1}
 .level-progress{width:100%;text-align:left}
 .unit-row a{padding:12px;gap:10px}
 .unit-meta small{display:none}
 .unit-row .ic.dim{display:none}
 .lesson-row>a,.lesson-row>div{padding:12px}
 .pager .btn{max-width:100%;flex:1}
 .ft-row{grid-template-columns:1fr}
 .ft-label{padding:6px 12px}
 .rate{grid-template-columns:repeat(2,minmax(0,1fr))}
 .toolbar{flex-direction:column;align-items:stretch}
 .menu-body{left:0;right:auto}
 .dict li{flex-wrap:wrap}
 .dict-meta{max-width:none;text-align:left;flex-basis:100%;order:3;display:flex;gap:10px}
 .auth{grid-template-columns:1fr}
 .auth-side{padding:28px 20px;gap:14px}
 .auth-side h1{font-size:1.8rem}
 .badge-ok{margin-left:0}
 .reading{font-size:1.06rem}
 .flash h2{font-size:1.7rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}