/* Deutsch im Alltag — mobile first (393/430 px phones), tablet layout from 768 px.
   Layout: phones = header + topic chips + content + bottom tab bar (thumb reach);
   tablets = header with tabs, left rail of topics, content column. */

@font-face{font-family:"Fira Sans Condensed";font-weight:600;font-display:swap;src:url(fonts/fira-sans-condensed-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Fira Sans Condensed";font-weight:600;font-display:swap;src:url(fonts/fira-sans-condensed-cyrillic-600-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Fira Sans Condensed";font-weight:700;font-display:swap;src:url(fonts/fira-sans-condensed-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Fira Sans Condensed";font-weight:700;font-display:swap;src:url(fonts/fira-sans-condensed-cyrillic-700-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-display:swap;src:url(fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-display:swap;src:url(fonts/ibm-plex-sans-cyrillic-400-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"IBM Plex Sans";font-weight:500;font-display:swap;src:url(fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-weight:500;font-display:swap;src:url(fonts/ibm-plex-sans-cyrillic-500-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-display:swap;src:url(fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-display:swap;src:url(fonts/ibm-plex-sans-cyrillic-600-normal.woff2) format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}

:root{
  --bg:#f3f4ef; --surface:#ffffff; --ink:#1a2130; --muted:#5a6475; --line:#dcdfd6; --chip:#e8eae2;
  --sign:#f2c200; --sign-ink:#17170f; --blue:#1d4d8b; --good:#1d7a49; --bad:#b2352b;
  --good-bg:#e2f1e7; --bad-bg:#f8e2df; --overlay:rgba(16,20,28,.45);
  --f-display:"Fira Sans Condensed","Arial Narrow","Roboto Condensed",sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --tabbar-h:60px; --radius:12px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#11151c; --surface:#1a2029; --ink:#e6e9ee; --muted:#9aa3b1; --line:#2b333f; --chip:#232a35;
  --sign:#e8ba12; --sign-ink:#15140e; --blue:#80aae6; --good:#5bbf88; --bad:#ee7c70;
  --good-bg:#16301f; --bad-bg:#3a1c19; --overlay:rgba(0,0,0,.6);
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#11151c; --surface:#1a2029; --ink:#e6e9ee; --muted:#9aa3b1; --line:#2b333f; --chip:#232a35;
  --sign:#e8ba12; --sign-ink:#15140e; --blue:#80aae6; --good:#5bbf88; --bad:#ee7c70;
  --good-bg:#16301f; --bad-bg:#3a1c19; --overlay:rgba(0,0,0,.6);
  color-scheme:dark;
}
.themebtn{border:1px solid var(--line);background:var(--surface);border-radius:999px;width:44px;height:44px;display:grid;place-items:center;flex:0 0 auto}
.themebtn svg{width:20px;height:20px}
.top-in .right{display:flex;gap:8px;align-items:center}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 var(--f-body);min-height:100vh;min-height:100dvh}
[hidden]{display:none!important}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.gutter{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:20;background:var(--bg);padding-top:env(safe-area-inset-top,0px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:56px;max-width:1120px;margin:0 auto}
.brand{display:flex;align-items:center;gap:8px;background:var(--sign);color:var(--sign-ink);border:2px solid var(--sign-ink);border-radius:6px;padding:3px 9px;font:700 1.15rem/1.15 var(--f-display);letter-spacing:.01em;white-space:nowrap}
.brand small{font:600 .7rem/1 var(--f-display);border-left:2px solid var(--sign-ink);padding-left:7px}
.coins{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 12px;min-height:40px;font-weight:600;font-variant-numeric:tabular-nums}
.coins svg{width:18px;height:18px}
.coins .delta{font-size:.85rem;font-weight:700;display:none}
.coins.up,.coins.down{animation:coin-pop .45s ease-out}
.coins.up{border-color:var(--good);background:var(--good-bg)}
.coins.down{border-color:var(--bad);background:var(--bad-bg)}
.coins.up .delta{display:inline;color:var(--good)}
.coins.down .delta{display:inline;color:var(--bad)}
@keyframes coin-pop{0%{transform:scale(1)}40%{transform:scale(1.12)}100%{transform:scale(1)}}
.htabs{display:none}

/* ---------- topics ---------- */
.topics{display:flex;gap:8px;overflow-x:auto;padding-block:10px;scrollbar-width:none;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity}
.topics::-webkit-scrollbar{display:none}
.topic{flex:0 0 auto;scroll-snap-align:start;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:8px 14px;min-height:40px;font-size:.92rem;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.topic[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.topic .pct{font-size:.75rem;opacity:.7;font-variant-numeric:tabular-nums}
.topicbar{display:flex;gap:8px;padding-block:10px;align-items:stretch}
.topicbar .topic{flex:0 0 auto}
.selwrap{position:relative;flex:1 1 auto;min-width:0;display:flex}
.selwrap select{appearance:none;-webkit-appearance:none;width:100%;min-width:0;min-height:44px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:8px 38px 8px 14px;font-size:.92rem;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}
.selwrap.on select{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.selwrap::after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;margin-top:-6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);pointer-events:none;color:var(--muted)}
.selwrap.on::after{color:var(--bg)}

/* ---------- layout ---------- */
.shell{max-width:1120px;margin:0 auto}
.main{padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom,0px) + 24px);min-width:0}
.rail{display:none}

/* ---------- bottom tab bar ---------- */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
.tabbar button{position:relative;border:0;background:none;height:var(--tabbar-h);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);font-size:.72rem;font-weight:500}
.tabbar svg{width:24px;height:24px}
.tabbar button[aria-current="page"]{color:var(--ink)}
.tabbar button[aria-current="page"] svg{color:var(--blue)}
.tabbar button[aria-current="page"]::before{content:"";position:absolute;top:0;left:50%;width:32px;height:3px;margin-left:-16px;border-radius:0 0 3px 3px;background:var(--sign)}

/* ---------- common ---------- */
h1,h2{font-family:var(--f-display);font-weight:700;line-height:1.1;text-wrap:balance;margin:0}
h2{font-size:1.55rem;margin-top:18px}
h3{font:600 .78rem/1 var(--f-display);letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin:20px 0 6px}
.lbl{font:600 .72rem/1 var(--f-display);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.muted{color:var(--muted)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.stack{display:flex;flex-direction:column;gap:12px}
.seg{display:inline-flex;background:var(--chip);border-radius:10px;padding:3px;gap:2px}
.seg button{border:0;background:transparent;padding:8px 14px;min-height:38px;border-radius:8px;font-weight:500;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.14)}
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;margin-top:6px}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:12px 18px;min-height:48px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;color:var(--ink)}
.btn.pri{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn.sign{background:var(--sign);color:var(--sign-ink);border:2px solid var(--sign-ink)}
.btn.good{background:var(--good-bg);border-color:var(--good);color:var(--good)}
.btn.bad{background:var(--bad-bg);border-color:var(--bad);color:var(--bad)}
.btn.ghost{background:transparent}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:default}
.icon{border:1px solid var(--line);background:var(--surface);border-radius:10px;width:42px;height:42px;display:grid;place-items:center;flex:0 0 auto}
.icon svg{width:20px;height:20px}
.icon.on{border-color:var(--good);color:var(--good);background:var(--good-bg)}
.tag{display:inline-block;font:600 .68rem/1 var(--f-display);letter-spacing:.08em;text-transform:uppercase;padding:3px 6px;border-radius:4px;margin-right:6px;vertical-align:2px;background:var(--chip);color:var(--muted)}
.tag.du{background:var(--sign);color:var(--sign-ink)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:14px}
.meta{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:.85rem;font-variant-numeric:tabular-nums}
.prog{height:6px;background:var(--chip);border-radius:3px;overflow:hidden}
.prog i{display:block;height:100%;width:0;background:var(--good);transition:width .3s}
.meta + .prog{margin:8px 0 16px}
.tr{color:var(--blue);font-size:.92rem;border-left:3px solid var(--blue);padding-left:8px}
.empty{color:var(--muted);padding:24px 0}

/* ---------- phrases ---------- */
.list{display:flex;flex-direction:column}
.ph{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;padding:12px 0;border-top:1px solid var(--line)}
.ph .ru{color:var(--muted);font-size:.92rem}
.ph .de{display:flex;flex-direction:column;gap:3px;font-weight:500;font-size:1.04rem}
.ph .acts{grid-column:2;grid-row:1 / span 4;display:flex;flex-direction:column;gap:6px}
.ph .reply,.ph .note{font-size:.86rem;color:var(--muted)}
.reply{border-left:3px solid var(--sign);padding-left:8px}
.note::before{content:"ⓘ ";color:var(--blue)}

/* ---------- cards & quiz ---------- */
.flash .q{font:600 1.5rem/1.25 var(--f-display);text-wrap:balance}
.flash .a{border-top:1px dashed var(--line);padding-top:12px;display:flex;flex-direction:column;gap:8px;font-size:1.1rem;font-weight:500}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.prompt{font:600 1.3rem/1.3 var(--f-display);text-wrap:balance}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:13px 15px;min-height:52px;font-size:1rem;display:flex;flex-direction:column;gap:4px}
.opt .tr{font-size:.86rem}
.opt.ok{background:var(--good-bg);border-color:var(--good)}
.opt.no{background:var(--bad-bg);border-color:var(--bad)}
.opt:disabled{cursor:default;color:var(--ink)}
.qtools{display:flex;gap:8px;justify-content:space-between;flex-wrap:nowrap}
.chipbtn{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:8px 14px;min-height:40px;font-size:.9rem;font-weight:500;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;min-width:0}
.chipbtn svg{width:16px;height:16px}
.chipbtn.free{border-color:var(--blue);color:var(--blue)}
.expl{font-size:.92rem;color:var(--muted)}
.modes{display:grid;grid-template-columns:1fr;gap:10px}
.mode{text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:4px;min-height:84px}
.mode b{font:700 1.25rem/1.1 var(--f-display)}
.mode span{color:var(--muted);font-size:.88rem}
.mode em{font-style:normal;font-size:.8rem;color:var(--blue);font-variant-numeric:tabular-nums}
.score{font:700 3.2rem/1 var(--f-display);font-variant-numeric:tabular-nums}

/* ---------- profile ---------- */
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;align-items:center}
.kv dt{color:var(--muted);font-size:.9rem}
.kv dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums;min-width:0;overflow-wrap:anywhere}
.bars{display:flex;flex-direction:column;gap:10px}
.bar{display:grid;grid-template-columns:minmax(0,1fr) 3.2em;gap:4px 10px;align-items:center;font-size:.9rem}
.bar .prog{grid-column:1 / -1}
.bar span:last-child{text-align:right;font-variant-numeric:tabular-nums;color:var(--muted)}
.danger{border-color:var(--bad)}
.links{display:flex;gap:16px;flex-wrap:wrap;font-size:.9rem}
.links a{color:var(--blue);display:inline-block;padding-block:11px}

/* ---------- auth screens ---------- */
.auth{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;justify-content:center;gap:22px;max-width:460px;margin:0 auto;
  padding-block:calc(env(safe-area-inset-top,0px) + 24px) calc(env(safe-area-inset-bottom,0px) + 24px)}
.auth .brand{align-self:flex-start;font-size:1.6rem;padding:6px 12px}
.auth h1{font-size:2.1rem}
.auth p{margin:0}
.field{display:flex;flex-direction:column;gap:6px}
.field input{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:12px 14px;min-height:50px;font-size:1.05rem;width:100%;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.pw{display:flex;gap:8px}
.pw input{flex:1;min-width:0}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.95rem}
.check input{width:22px;height:22px;margin-top:2px;flex:0 0 auto;accent-color:var(--ink)}
.notice{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:12px 14px;font-size:.92rem}
.notice.warn{border-color:var(--bad);background:var(--bad-bg)}
.steps{margin:0;padding-left:1.2em;font-size:.92rem;color:var(--muted);display:flex;flex-direction:column;gap:4px}

/* ---------- dialog & toast ---------- */
dialog{border:0;border-radius:18px 18px 0 0;padding:0;margin:auto auto 0;width:100%;max-width:560px;background:var(--surface);color:var(--ink);max-height:92dvh}
dialog::backdrop{background:var(--overlay)}
.dlg{padding:18px max(16px,env(safe-area-inset-left,0px)) calc(18px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:14px}
.dlg header{display:flex;justify-content:space-between;align-items:center;gap:10px}
.dlg h2{margin:0;font-size:1.35rem}
.dlg select,.dlg textarea{border:1px solid var(--line);background:var(--bg);border-radius:10px;padding:12px;font-size:1rem;width:100%}
.dlg textarea{min-height:130px;resize:vertical}
.ctx{font-size:.88rem;color:var(--muted);border-left:3px solid var(--line);padding-left:8px;overflow-wrap:anywhere}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom,0px) + 14px);z-index:60;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;font-weight:500;max-width:calc(100% - 32px);box-shadow:0 6px 20px rgba(0,0,0,.25)}
.loading{padding:40px 0;color:var(--muted)}

/* ---------- 6.7" phones and up ---------- */
@media (min-width:420px){
  .modes{grid-template-columns:1fr 1fr}
}

/* ---------- tablets ---------- */
@media (min-width:768px){
  :root{--tabbar-h:0px}
  body{font-size:16.5px}
  .tabbar{display:none}
  .htabs{display:flex;gap:4px;background:var(--chip);border-radius:12px;padding:4px}
  .htabs button{border:0;background:none;padding:9px 16px;min-height:42px;border-radius:9px;font-weight:600;color:var(--muted);display:inline-flex;gap:8px;align-items:center}
  .htabs button svg{width:20px;height:20px}
  .htabs button[aria-current="page"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.14)}
  .shell{display:grid;grid-template-columns:250px minmax(0,1fr);gap:28px}
  .shell.wide{grid-template-columns:minmax(0,1fr)}
  .rail{display:block;position:sticky;top:calc(env(safe-area-inset-top,0px) + 74px);align-self:start;max-height:calc(100dvh - 90px);overflow-y:auto;padding-block:16px}
  .rail .topics{flex-direction:column;overflow:visible;padding:0;gap:4px}
  .rail .topic{border:0;background:transparent;border-radius:10px;justify-content:space-between;width:100%;white-space:normal;text-align:left;min-height:44px}
  .rail .topic[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
  .mobile-topics{display:none}
  .main{padding-bottom:40px;padding-top:4px}
  #view{max-width:780px}
  .ph .acts{flex-direction:row;grid-row:1 / span 2;align-self:start}
  .toast{bottom:24px}
  dialog{border-radius:18px;margin:auto}
  .card{padding:24px}
  .modes{grid-template-columns:repeat(2,1fr)}
  .flash .q{font-size:1.75rem}
}
@media (min-width:768px) and (max-width:1099px){
  .htabs button{padding:9px 12px}
  .htabs button svg{display:none}
  .top-in .brand small{display:none}
}
@media (min-width:1100px){
  .modes{grid-template-columns:repeat(4,1fr)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ---------- legal pages ---------- */
.doc{max-width:720px;margin:0 auto;padding-block:calc(env(safe-area-inset-top,0px) + 24px) calc(env(safe-area-inset-bottom,0px) + 40px)}
.doc h1{font-size:2rem;margin:16px 0 8px}
.doc h2{font-size:1.25rem;margin-top:26px}
.doc p,.doc li{max-width:68ch}
.doc .todo{background:var(--sign);color:var(--sign-ink);padding:0 4px;border-radius:3px}
.doc a{color:var(--blue)}