/* ==========================================================================
   SMGerman – design 2
   One rule: the colour follows the level. --h (set by JS per level / topic) drives every accent;
   --kh tints the exercise card. All other colours are fixed semantic tokens.
   Colours use OKLCH, so the same lightness gives the same contrast on every hue.
   ========================================================================== */

@font-face{font-family:'Plus Jakarta Sans';font-style:normal;font-weight:400 800;font-display:swap;src:url(../fonts/plus-jakarta-sans-var-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Plus Jakarta Sans';font-style:normal;font-weight:400 800;font-display:swap;src:url(../fonts/plus-jakarta-sans-var-latin.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}

/* ---------- Tokens ---------- */
/* theme = lightness/chroma numbers only; the colours are built from them below */
:root{
  --h:150; --kh:40;
  --l-bg:.975; --c-bg:.016; --l-surf:1; --c-surf:0; --l-s2:.955; --c-s2:.022;
  --l-ink:.25; --l-mut:.47; --l-line:.905;
  --l-acc:.53; --c-acc:.17; --l-accd:.43; --l-accs:.945; --c-accs:.045; --l-onacc:1;
  --l-kbg:.985; --c-kbg:.022;
  --ok:oklch(.56 .15 150); --ok-deep:oklch(.46 .14 150); --okbg:oklch(.955 .045 150);
  --red:oklch(.56 .2 27); --red-deep:oklch(.46 .18 27); --redbg:oklch(.955 .035 27);
  --warn:oklch(.56 .13 62); --hlbg:oklch(.955 .07 95);
  --der:oklch(.52 .2 262); --die:oklch(.55 .22 350); --das:oklch(.54 .15 155); --pl:oklch(.6 .16 55);
  --shadow:0 1px 2px oklch(.3 .03 var(--h) / .06),0 8px 24px -12px oklch(.3 .05 var(--h) / .18);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --r-s:10px; --r:14px; --r-l:20px;
  --nav-h:68px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --l-bg:.165; --c-bg:.018; --l-surf:.215; --c-surf:.022; --l-s2:.255; --c-s2:.028;
  --l-ink:.95; --l-mut:.76; --l-line:.32;
  --l-acc:.77; --c-acc:.14; --l-accd:.6; --l-accs:.3; --c-accs:.06; --l-onacc:.18;
  --l-kbg:.235; --c-kbg:.035;
  --ok:oklch(.79 .16 150); --ok-deep:oklch(.6 .14 150); --okbg:oklch(.3 .06 150);
  --red:oklch(.73 .17 25); --red-deep:oklch(.56 .17 25); --redbg:oklch(.3 .07 25);
  --warn:oklch(.82 .13 75); --hlbg:oklch(.34 .06 95);
  --der:oklch(.76 .13 262); --die:oklch(.77 .15 350); --das:oklch(.79 .15 155); --pl:oklch(.81 .13 60);
  --shadow:0 1px 2px oklch(0 0 0 / .3),0 10px 28px -14px oklch(0 0 0 / .6);
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --l-bg:.165; --c-bg:.018; --l-surf:.215; --c-surf:.022; --l-s2:.255; --c-s2:.028;
  --l-ink:.95; --l-mut:.76; --l-line:.32;
  --l-acc:.77; --c-acc:.14; --l-accd:.6; --l-accs:.3; --c-accs:.06; --l-onacc:.18;
  --l-kbg:.235; --c-kbg:.035;
  --ok:oklch(.79 .16 150); --ok-deep:oklch(.6 .14 150); --okbg:oklch(.3 .06 150);
  --red:oklch(.73 .17 25); --red-deep:oklch(.56 .17 25); --redbg:oklch(.3 .07 25);
  --warn:oklch(.82 .13 75); --hlbg:oklch(.34 .06 95);
  --der:oklch(.76 .13 262); --die:oklch(.77 .15 350); --das:oklch(.79 .15 155); --pl:oklch(.81 .13 60);
  --shadow:0 1px 2px oklch(0 0 0 / .3),0 10px 28px -14px oklch(0 0 0 / .6);
  color-scheme:dark;
}
/* colours from the numbers; repeated on every element with its own --h (levels, topics), so they take that hue */
:root,[style*="--h"]{
  --bg:oklch(var(--l-bg) var(--c-bg) var(--h));
  --surface:oklch(var(--l-surf) var(--c-surf) var(--h));
  --surface-2:oklch(var(--l-s2) var(--c-s2) var(--h));
  --ink:oklch(var(--l-ink) .03 var(--h));
  --muted:oklch(var(--l-mut) .035 var(--h));
  --line:oklch(var(--l-line) .025 var(--h));
  --acc:oklch(var(--l-acc) var(--c-acc) var(--h));
  --acc-deep:oklch(var(--l-accd) var(--c-acc) var(--h));
  --acc-soft:oklch(var(--l-accs) var(--c-accs) var(--h));
  --on-acc:oklch(var(--l-onacc) .03 var(--h));
  --k-bg:oklch(var(--l-kbg) var(--c-kbg) var(--kh));
  --k-acc:oklch(var(--l-acc) var(--c-acc) var(--kh));
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;word-spacing:.03em;min-height:100vh;min-height:100dvh;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;transition:background-color .4s ease}
[hidden]:not([hidden=until-found i]){display:none!important}
img,svg{max-width:100%}
svg{flex:none}
button{font:inherit;color:inherit;-webkit-tap-highlight-color:transparent}
a{color:var(--acc)}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px;border-radius:6px}
h1,h2{margin:0;font-weight:800;letter-spacing:-.01em;word-spacing:.08em;text-wrap:balance}
h1{font-size:1.6rem;line-height:1.2}
h2{font-size:1.15rem;line-height:1.3}
.ico{width:20px;height:20px;display:block}

.wrap{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:18px;
  padding:max(14px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px))}
body[data-nav] .wrap{padding-bottom:calc(var(--nav-h) + 32px + env(safe-area-inset-bottom,0px))}

/* ---------- Header ---------- */
.top{display:flex;align-items:center;gap:10px;min-height:44px}
.brand{margin-right:auto;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:9px}
.brand .lg{width:28px;height:28px;flex:none;border-radius:6px;box-shadow:0 2px 0 var(--acc-deep)}
.brand .wm{height:20px;width:auto;display:block}
/* pages without levels (legal, admin) show the brand blue */
.brand.fixed{--acc:#2456D3;--acc-deep:#1a3fa0}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .brand.fixed{--acc:#6f95f5;--acc-deep:#2456D3}}
:root[data-theme="dark"] .brand.fixed{--acc:#6f95f5;--acc-deep:#2456D3}
.tag{color:var(--muted);font-size:.8rem;font-weight:600}
.iconbtn{flex:none;width:44px;height:44px;border-radius:50%;border:0;background:var(--surface);box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.iconbtn:hover{color:var(--acc)}
.iconbtn .ico{width:22px;height:22px}

/* account chip */
.acct{display:inline-flex;align-items:center;gap:8px;border:0;background:var(--surface);box-shadow:var(--shadow);color:var(--ink);border-radius:999px;min-height:44px;padding:4px 14px 4px 5px;font-size:.88rem;font-weight:700;cursor:pointer;min-width:0;max-width:48vw}
.acct span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct i{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--acc);color:var(--on-acc);font-style:normal;font-weight:800;font-size:.9rem;text-transform:uppercase;flex:none}
.acct .dot{width:8px;height:8px;border-radius:50%;background:var(--muted);flex:none}
.acct .dot.ok{background:var(--ok)}
.acct .dot.err{background:var(--red)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;border:0;border-radius:var(--r);padding:12px 22px;font-weight:800;font-size:1rem;letter-spacing:.01em;cursor:pointer;text-decoration:none;transition:transform .08s ease,box-shadow .08s ease,filter .15s}
.btn.primary{background:var(--acc);color:var(--on-acc);box-shadow:0 4px 0 var(--acc-deep)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.primary:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px 0 var(--acc-deep)}
.btn.ghost{background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 2px var(--line),0 3px 0 var(--line)}
.btn.ghost:hover{color:var(--acc)}
.btn.ghost:active:not(:disabled){transform:translateY(2px);box-shadow:inset 0 0 0 2px var(--line),0 1px 0 var(--line)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.block{width:100%}
.btn.big{min-height:58px;font-size:1.1rem;border-radius:16px}
.btn .ico{width:20px;height:20px}
.danger{color:var(--red)!important}
.btn.ghost.danger{box-shadow:inset 0 0 0 2px var(--redbg),0 3px 0 var(--redbg)}
.linkbtn{background:none;border:0;min-height:44px;padding:4px 8px;color:var(--acc);font-weight:700;font-size:.92rem;cursor:pointer;text-align:center}
.linkbtn:hover{text-decoration:underline}

/* ---------- Level picker ---------- */
.levels{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.lvl{position:relative;display:flex;flex-direction:column;align-items:center;gap:1px;padding:10px 4px 9px;border:0;border-radius:var(--r);background:var(--surface);box-shadow:inset 0 0 0 2px var(--line),0 3px 0 var(--line);cursor:pointer;text-align:center;transition:transform .08s ease}
.lvl b{font-size:1.25rem;font-weight:800;color:var(--acc);line-height:1.2}
.lvl small{font-size:.68rem;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
button.lvl:active{transform:translateY(2px)}
.lvl.on{background:var(--acc);box-shadow:0 4px 0 var(--acc-deep)}
.lvl.on b,.lvl.on small{color:var(--on-acc)}
.lvl.off{opacity:.45;cursor:default;box-shadow:inset 0 0 0 2px var(--line)}
.lvl.off b{color:var(--muted)}
.lvl .wc{position:absolute;top:-8px;right:-3px;font-size:.62rem;font-weight:800;line-height:1;padding:4px 6px;border-radius:99px;background:var(--surface);color:var(--acc);box-shadow:inset 0 0 0 1.5px var(--acc);font-variant-numeric:tabular-nums}
.fachrow{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin-top:-4px}
.fachrow .fl{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:800;white-space:nowrap}
.fachs{display:flex;gap:8px;flex:1;min-width:0}
.fachs{flex:1 1 220px}
.fachs .lvl.fach{flex:1 1 0;min-width:0;padding:9px 8px}
.fachs .lvl.fach b{font-size:.95rem}

/* ---------- Cards / sections ---------- */
.hero,.panel,.testcard,.idrow,.win{background:var(--surface);border-radius:var(--r-l);box-shadow:var(--shadow)}
.hero{padding:20px;display:flex;flex-direction:column;gap:14px}
.hero .lv{font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--acc);font-weight:800}
.hero h1{font-size:1.55rem}
.sec{display:flex;flex-direction:column;gap:10px}
.sec>h2{padding:0 4px}
.note{color:var(--muted);font-size:.88rem;margin:0}
.note.warn{color:var(--warn);font-weight:700}
.empty{color:var(--muted);font-size:.92rem;margin:0;padding:16px;border-radius:var(--r);background:var(--surface-2);text-align:center}
.loading{color:var(--muted);text-align:center;padding:40px 0}

/* home: the level colour as a bold card with the main action */
.home-hero{position:relative;overflow:hidden;color:var(--on-acc);background:radial-gradient(120% 90% at 100% 0%,color-mix(in oklch,var(--on-acc) 18%,transparent),transparent 60%),linear-gradient(150deg,var(--acc),var(--acc-deep));box-shadow:0 14px 30px -16px var(--acc-deep)}
.home-hero .lv{color:inherit;opacity:.85}
.home-hero h1{font-size:1.7rem}
.home-hero .bar3{background:color-mix(in oklch,var(--on-acc) 22%,transparent)}
.home-hero .bar3 .m{background:var(--on-acc)}
.home-hero .bar3 .l{background:color-mix(in oklch,var(--on-acc) 55%,transparent)}
.home-hero .legend{color:inherit;opacity:.92}
.home-hero .legend span::before{box-shadow:inset 0 0 0 1.5px var(--on-acc);background:transparent}
.home-hero .legend .m::before{background:var(--on-acc)}
.home-hero .legend .l::before{background:color-mix(in oklch,var(--on-acc) 55%,transparent)}
/* white key on the coloured card; its edge is a pale tint of the level colour, not black */
.home-hero .btn.primary{background:var(--on-acc);color:var(--acc-deep);box-shadow:0 4px 0 oklch(.84 .08 var(--h))}
.home-hero .btn.primary:active{box-shadow:0 1px 0 oklch(.84 .08 var(--h))}
.stats{gap:12px}
/* dark: a deep tinted card instead of a bright one */
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .home-hero{background:radial-gradient(120% 90% at 100% 0%,oklch(1 0 0 / .1),transparent 60%),linear-gradient(150deg,oklch(.47 .13 var(--h)),oklch(.32 .09 var(--h)));color:oklch(.97 .01 var(--h));box-shadow:0 14px 30px -16px oklch(0 0 0 / .7)}:root:not([data-theme="light"]) .home-hero .btn.primary{background:var(--acc);color:var(--on-acc);box-shadow:0 4px 0 var(--acc-deep)}:root:not([data-theme="light"]) .home-hero .bar3 .m,.home-hero .legend .m::before{background:var(--acc)}}
:root[data-theme="dark"] .home-hero{background:radial-gradient(120% 90% at 100% 0%,oklch(1 0 0 / .1),transparent 60%),linear-gradient(150deg,oklch(.47 .13 var(--h)),oklch(.32 .09 var(--h)));color:oklch(.97 .01 var(--h));box-shadow:0 14px 30px -16px oklch(0 0 0 / .7)}
:root[data-theme="dark"] .home-hero .btn.primary{background:var(--acc);color:var(--on-acc);box-shadow:0 4px 0 var(--acc-deep)}
:root[data-theme="dark"] .home-hero .bar3 .m,.home-hero .legend .m::before{background:var(--acc)}

/* word counters */
.words{display:grid;grid-template-columns:repeat(auto-fit,minmax(92px,1fr));gap:8px}
.words div{background:var(--surface-2);border-radius:var(--r);padding:10px 12px;display:flex;flex-direction:column}
.words b{font-size:1.4rem;font-weight:800;color:var(--acc);font-variant-numeric:tabular-nums;line-height:1.2}
.words small{font-size:.74rem;color:var(--muted);font-weight:600;line-height:1.3}

/* progress */
.bar3{display:flex;height:12px;border-radius:99px;overflow:hidden;background:var(--surface-2)}
.bar3 i{display:block;height:100%}
.bar3 .m{background:var(--ok)}
.bar3 .l{background:var(--acc)}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.84rem;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}
.legend span::before{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;background:var(--surface-2);box-shadow:inset 0 0 0 1.5px var(--line);vertical-align:-1px}
.legend .m::before{background:var(--ok);box-shadow:none}
.legend .l::before{background:var(--acc);box-shadow:none}

/* today / streak / due */
.today{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.today>div{position:relative;background:var(--surface);box-shadow:var(--shadow);border-radius:var(--r);padding:12px 12px 10px;display:flex;flex-direction:column;gap:1px;min-width:0}
.today .ico{width:22px;height:22px;margin-bottom:4px}
.today .st-goal .ico{color:var(--acc)}
.today .st-streak .ico{color:oklch(.68 .19 45)}
.today .st-due .ico{color:oklch(.6 .17 262)}
.today b{font-size:1.35rem;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.15}
.today small{color:var(--muted);font-size:.72rem;font-weight:600;line-height:1.3}
.today .gbar{height:6px;border-radius:99px;background:var(--line);overflow:hidden;margin-top:6px}
.today .gbar i{display:block;height:100%;background:var(--ok);border-radius:99px}
.goalrow{display:flex;gap:6px;align-items:center;flex-wrap:wrap;font-size:.84rem;font-weight:600;color:var(--muted)}
.gc{min-width:44px;min-height:36px;border:0;border-radius:99px;padding:4px 12px;font-weight:800;font-size:.85rem;cursor:pointer;color:var(--muted);background:var(--surface-2)}
.gc.on{background:var(--ok);color:var(--surface)}
.sync{font-size:.8rem;color:var(--muted);margin:0;display:flex;gap:6px;align-items:flex-start}
.sync.ok{color:var(--ok)}

/* placement test teaser */
.testcard{padding:16px 18px;display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.testcard p{margin:0;max-width:44ch;min-width:0}

/* topics */
.units{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.unit{width:100%;display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:2px 14px;text-align:left;background:var(--surface);border:0;border-radius:var(--r-l);padding:14px 16px;cursor:pointer;box-shadow:var(--shadow);transition:transform .1s ease}
.unit:hover{transform:translateY(-1px)}
.unit:active{transform:translateY(1px)}
.unit .no{grid-row:span 2;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font-weight:800;font-size:1rem;background:var(--acc-soft);color:var(--acc)}
.unit .nm{font-weight:800;min-width:0;line-height:1.3}
.unit .sb{grid-column:2;color:var(--muted);font-size:.82rem;min-width:0;line-height:1.35}
.unit .ct{grid-row:span 2;font-variant-numeric:tabular-nums;color:var(--muted);font-size:.85rem;font-weight:700;text-align:right}
.unit .pb{grid-column:2 / 4;height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin-top:8px}
.unit .pb i{display:block;height:100%;background:var(--acc);border-radius:99px}
.unit.wd .no{background:var(--acc);color:var(--on-acc);box-shadow:0 3px 0 var(--acc-deep)}

/* difficult cards */
.hard{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.hard li{background:var(--surface);border-radius:var(--r);padding:12px 14px;display:flex;justify-content:space-between;gap:12px;align-items:baseline;box-shadow:var(--shadow)}
.hard li span:first-child{min-width:0}
.hard .wn{color:var(--red);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:.82rem;font-weight:700}
.hard .wn.done{color:var(--ok)}
.reset{display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:.9rem}
.export{display:grid;gap:8px;margin-top:14px;color:var(--muted);font-size:.9rem}
.export textarea{width:100%;min-height:110px;font:12px/1.4 ui-monospace,monospace;padding:10px;border-radius:var(--r-s);border:2px solid var(--line);background:var(--surface-2);color:inherit}
.export .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* ---------- Learning screen ---------- */
.lbar{display:flex;align-items:center;gap:10px;min-height:44px}
.back{display:inline-flex;align-items:center;gap:2px;min-height:44px;background:none;border:0;color:var(--acc);font-weight:800;cursor:pointer;padding:6px 8px 6px 0;white-space:nowrap}
@media (max-width:520px){.back .bt{display:none}.back{width:44px;justify-content:center;padding:0;border-radius:50%;background:var(--surface);box-shadow:var(--shadow)}}
.lbar .lt{flex:1;min-width:0;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lbar .lc{font-size:.8rem;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(70px,1fr));gap:4px;background:var(--surface-2);border-radius:var(--r);padding:4px}
.md{min-height:40px;border:0;background:transparent;border-radius:11px;padding:8px 4px;font-size:.85rem;font-weight:800;color:var(--muted);cursor:pointer}
.md:hover{color:var(--ink)}
.md.on{background:var(--surface);color:var(--acc);box-shadow:0 1px 3px oklch(0 0 0 / .12)}

.kk{background:var(--k-bg);border-radius:var(--r-l);box-shadow:var(--shadow);overflow:hidden;transition:background-color .35s ease}
.kh{display:flex;align-items:center;gap:8px;padding:14px 18px 0;flex-wrap:wrap}
.kh .q{font-weight:800;flex:1;min-width:0;color:var(--k-acc);font-size:.92rem}
.chip{font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:99px;background:var(--surface);color:var(--muted);font-weight:800}
.chip.err{background:var(--redbg);color:var(--red)}
.dots{display:inline-flex;gap:4px}
.dots i{width:12px;height:12px;border-radius:50%;box-shadow:inset 0 0 0 2px var(--ok);display:block}
.dots i.on{background:var(--ok)}
.kb{padding:12px 18px 22px}
.sent{font-size:1.45rem;font-weight:700;line-height:1.75;margin:0;min-height:2.6em;letter-spacing:-.01em}
.hint{margin:4px 0 0;color:var(--muted);font-weight:600;font-size:.92rem}
.slot{display:inline-block;min-width:3.4em;padding:0 6px;border-bottom:3px solid var(--k-acc);text-align:center;line-height:1.3;transition:color .15s}
.slot.bad{color:var(--red);border-color:var(--red)}
.slot.ok{color:var(--ok);border-color:var(--ok)}
.slot.ok.g-m,.tin.ok.g-m{color:var(--der)}
.slot.ok.g-f,.tin.ok.g-f{color:var(--die)}
.slot.ok.g-n,.tin.ok.g-n{color:var(--das)}
.slot.ok.g-p,.tin.ok.g-p{color:var(--pl)}
.slot .nil{opacity:.4}
.tin{font:inherit;font-size:1.25rem;font-weight:700;color:var(--ink);background:var(--surface);border:0;border-bottom:3px solid var(--k-acc);border-radius:8px 8px 0 0;padding:2px 8px;line-height:1.3;max-width:100%;text-align:center}
.tin:focus{outline:none;box-shadow:0 0 0 3px var(--acc-soft)}
.tin.bad{color:var(--red);border-color:var(--red);background:var(--redbg);text-decoration:line-through;animation:shake .35s}
.tin.ok{color:var(--ok);border-color:var(--ok);background:var(--okbg)}
.typbar{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.uml{display:flex;gap:6px;flex-wrap:wrap}
.uk{width:44px;height:44px;border-radius:12px;border:0;background:var(--surface);box-shadow:inset 0 0 0 2px var(--line),0 3px 0 var(--line);cursor:pointer;font-weight:700;font-size:1.1rem}
.uk:active{transform:translateY(2px);box-shadow:inset 0 0 0 2px var(--line),0 1px 0 var(--line)}
.tip{margin:0;background:var(--hlbg);border-radius:var(--r);padding:10px 14px;font-weight:600}

/* answer options */
.opts{display:grid;grid-template-columns:1fr;gap:10px}
.opts.art{grid-template-columns:repeat(3,1fr)}
.opt{position:relative;overflow:hidden;display:flex;align-items:center;gap:12px;min-height:56px;padding:12px 16px;border:0;border-radius:var(--r);background:var(--surface);box-shadow:inset 0 0 0 2px var(--line),0 4px 0 var(--line);cursor:pointer;text-align:left;font-size:1.08rem;font-weight:700;transition:transform .08s ease,box-shadow .08s ease,background-color .15s}
.opt:hover:not(:disabled):not([aria-disabled]){box-shadow:inset 0 0 0 2px var(--acc),0 4px 0 var(--acc-deep)}
.opt:active:not(:disabled){transform:translateY(3px);box-shadow:inset 0 0 0 2px var(--line),0 1px 0 var(--line)}
.opt .val{flex:1;min-width:0}
.opt kbd{font-family:var(--font);font-size:.72rem;font-weight:700;color:var(--muted);background:var(--surface-2);border-radius:6px;padding:1px 6px}
@media (hover:none){.opt kbd{display:none}}
.opts.art .opt{justify-content:center;font-size:1.3rem;padding:14px 8px}
.opts.art .opt .val{flex:none}
.opts.art .opt kbd{position:absolute;top:6px;right:8px}
.opt[data-g=m] .val{color:var(--der)}
.opt[data-g=f] .val{color:var(--die)}
.opt[data-g=n] .val{color:var(--das)}
.mark{flex:none;width:26px;height:26px;border-radius:50%;box-shadow:inset 0 0 0 2px var(--line);display:grid;place-items:center;color:var(--surface);transition:all .15s}
.mark .ico{width:16px;height:16px}
.opts.art .mark{display:none}
.opt.sel{box-shadow:inset 0 0 0 2px var(--acc),0 4px 0 var(--acc-deep);background:var(--acc-soft)}
.opt.ok{background:var(--okbg);box-shadow:inset 0 0 0 2px var(--ok),0 4px 0 var(--ok-deep)}
.opt.ok .mark{background:var(--ok);box-shadow:none}
.opt.bad{background:var(--redbg);box-shadow:inset 0 0 0 2px var(--red),0 4px 0 var(--red-deep);animation:shake .35s}
.opt.bad .val{color:var(--red)!important}
.opt.bad .mark{background:var(--red);box-shadow:none}
.opt.bad::after{content:"";position:absolute;left:0;bottom:0;height:4px;width:100%;background:var(--red);transform-origin:left;animation:drain 2s linear forwards}
.opt.out{opacity:.4;cursor:not-allowed}
.opt.out .val{text-decoration:line-through}
.opt.dim{opacity:.4;cursor:default}
.opt[aria-disabled]{cursor:wait}
@keyframes drain{from{transform:scaleX(1)}to{transform:scaleX(0)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
@keyframes pop{0%{transform:scale(.96);opacity:0}100%{transform:scale(1);opacity:1}}

/* word order */
.line{display:inline-flex;flex-wrap:wrap;gap:6px;min-height:50px;min-width:60%;vertical-align:middle;padding:4px 6px;border-bottom:3px solid var(--k-acc);line-height:1.2}
.line.bad{border-color:var(--red);background:var(--redbg);border-radius:8px 8px 0 0}
.line.ok{border-color:var(--ok);background:var(--okbg);border-radius:8px 8px 0 0}
.tile{min-height:44px;font-size:1.05rem;font-weight:700;padding:8px 14px;border-radius:12px;border:0;background:var(--surface);box-shadow:inset 0 0 0 2px var(--line),0 3px 0 var(--line);cursor:pointer;line-height:1.2}
.tile:active{transform:translateY(2px)}
.line .tile{box-shadow:inset 0 0 0 2px var(--acc),0 3px 0 var(--acc-deep);background:var(--acc-soft)}
.line.bad .tile{box-shadow:inset 0 0 0 2px var(--red);color:var(--red);background:var(--surface)}
.line.ok .tile{box-shadow:inset 0 0 0 2px var(--ok);color:var(--ok);background:var(--surface)}
.bank{display:flex;flex-wrap:wrap;gap:8px;min-height:50px}
.ordact{display:flex;gap:10px;flex-wrap:wrap}

/* new word intro */
.wdw{display:flex;align-items:center;gap:12px;margin:0;font-size:2rem;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.wdw span{min-width:0}
.wdw.g-m{color:var(--der)}
.wdw.g-f{color:var(--die)}
.wdw.g-n{color:var(--das)}
.forms{margin:6px 0 0;color:var(--k-acc);font-weight:700}
.def{margin:8px 0 0;max-width:60ch}
.exs{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.exs li{display:flex;align-items:center;gap:10px;font-size:1.05rem;font-weight:600;background:var(--surface);border-radius:var(--r);padding:6px 6px 6px 14px}
.exs li span{flex:1;min-width:0}

/* feedback after an answer */
#fb{display:flex;flex-direction:column;gap:14px}
.tr{background:var(--surface);border-radius:var(--r);padding:14px 16px;box-shadow:inset 4px 0 0 var(--warn),var(--shadow)}
.tr .trl{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--warn);font-weight:800;margin-bottom:4px}
.tr p{margin:0;max-width:62ch}
.win{padding:18px;display:flex;flex-direction:column;gap:12px;animation:pop .22s ease-out;box-shadow:inset 0 4px 0 var(--ok),var(--shadow)}
.win .wt{font-weight:800;font-size:1.05rem;color:var(--ok);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.win .wt .gl{background:var(--ok);color:var(--surface);padding:3px 10px;border-radius:99px;font-size:.75rem}
.full{font-size:1.2rem;font-weight:700;margin:0;display:flex;gap:10px;align-items:flex-start}
.full span.t{flex:1;min-width:0}
.hl{color:var(--acc)}
.hl.g-m{color:var(--der)}
.hl.g-f{color:var(--die)}
.hl.g-n{color:var(--das)}
.hl.g-p{color:var(--pl)}
.spk{flex:none;width:44px;height:44px;border-radius:50%;border:0;background:var(--acc-soft);cursor:pointer;display:grid;place-items:center;color:var(--acc)}
.spk:active{transform:scale(.94)}
.spk svg{width:20px;height:20px}
.wbtns{display:flex;gap:10px;flex-wrap:wrap}
.wbtns .btn.primary{flex:1 1 auto}
.done-msg{background:var(--okbg);color:var(--ok);border-radius:var(--r);padding:12px 14px;font-weight:700;margin:0}

/* tables */
.tbw{overflow-x:auto;margin-top:4px}
.tb{border-collapse:collapse;font-size:.92rem;min-width:240px}
.tb caption{text-align:left;font-weight:800;padding-bottom:6px;color:var(--muted);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase}
.tb td,.tb th{padding:6px 14px 6px 0;border-bottom:1px solid var(--line);text-align:left;font-weight:500}
.tb td:first-child{color:var(--muted)}
.tb tr.x td:last-child{color:var(--acc);font-weight:800}
.tb2{font-size:.86rem}
.tb2 th{color:var(--muted);font-size:.74rem;font-weight:700}
.tb2 td,.tb2 th{padding:6px 8px;white-space:nowrap}
.tb2 td b{color:var(--acc)}
.tb2 td.x2{background:var(--hlbg);font-weight:800;border-radius:6px}

/* translation */
.trn{border-top:2px dashed var(--line);padding-top:12px;display:flex;flex-direction:column;gap:6px}
.trn .lab{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:800}
.trn .de,.trn .tr2{margin:0;font-size:1.1rem;font-weight:600;line-height:1.6}
.trn .wait{color:var(--muted);margin:0}

/* listening */
.listen{display:flex;gap:8px;flex-wrap:wrap}
.listen svg{width:18px;height:18px}

/* placement test */
.tprog{height:10px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.tprog i{display:block;height:100%;background:var(--acc);border-radius:99px;transition:width .3s ease}
.tres{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.tres li{display:grid;grid-template-columns:2.6em 1fr auto;gap:10px;align-items:center;font-variant-numeric:tabular-nums;font-weight:600}
.tres b{font-weight:800;font-size:1.1rem}
.tres .bar{height:12px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.tres .bar i{display:block;height:100%;background:var(--ok);border-radius:99px}
.tres .bar i.lo{background:var(--warn)}
.rec{font-size:1.4rem;font-weight:800;margin:0}

/* ---------- Sign-in and account ---------- */
.auth{max-width:440px;width:100%;margin:0 auto;gap:12px}
.auth h1{font-size:1.45rem}
.tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;background:var(--surface-2);border-radius:var(--r);padding:4px}
.tabs button{min-height:42px;border:0;background:transparent;color:var(--muted);border-radius:11px;font-weight:800;cursor:pointer}
.tabs button.on{background:var(--surface);color:var(--acc);box-shadow:0 1px 3px oklch(0 0 0 / .12)}
.hero form{display:flex;flex-direction:column;gap:12px}
.fld{display:flex;flex-direction:column;gap:5px;font-size:.85rem;font-weight:700}
.fld small{font-weight:500;color:var(--muted)}
.fld input{font:inherit;font-weight:500;font-size:1rem;min-height:50px;padding:10px 14px;border-radius:var(--r);border:2px solid var(--line);background:var(--surface);color:var(--ink);width:100%}
.fld input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 4px var(--acc-soft)}
.ferr,.fok{margin:0;padding:10px 14px;border-radius:var(--r);font-size:.88rem;font-weight:600}
.ferr{background:var(--redbg);color:var(--red)}
.fok{background:var(--okbg);color:var(--ok)}
.ferr:empty,.fok:empty{display:none}
.tr-sub{display:block;font-weight:500;font-size:.78rem;color:var(--muted);letter-spacing:0;text-transform:none}
.btn .tr-sub{font-size:.72rem}
/* German label with the Turkish one below it */
.btn:has(> .tr-sub){flex-direction:column;gap:0;line-height:1.25}
.btn.primary .tr-sub{color:inherit;opacity:.8}
.gbtn{text-decoration:none}
.gbtn.sm{min-height:44px;padding:8px 14px;font-size:.9rem}
.gicon{width:20px;height:20px;flex:none}
.or{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.78rem;font-weight:600}
.or::before,.or::after{content:"";flex:1;height:2px;border-radius:2px;background:var(--line)}
.idrow{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 16px}
.idrow>div:first-child{display:flex;flex-direction:column;gap:2px;min-width:0}
.idrow>div:first-child span{color:var(--muted);font-size:.88rem;overflow-wrap:anywhere}
.badge{font-style:normal;font-size:.7rem;font-weight:800;padding:2px 8px;border-radius:99px;margin-left:4px;white-space:nowrap}
.badge.ok{background:var(--okbg);color:var(--ok)}
.badge.warn{background:var(--hlbg);color:var(--warn)}
.panel{display:flex;flex-direction:column;gap:12px;padding:16px}
/* small phones: the sign-in card must fit without scrolling past the keyboard */
@media (max-width:480px){
  .auth{padding:16px;gap:10px}
  .auth h1{font-size:1.3rem}
  .auth>.note{display:none}
  .auth .fld input{min-height:46px}
  .auth .btn{min-height:46px}
}

/* ---------- Bottom navigation ---------- */
.bnav{position:fixed;left:0;right:0;bottom:0;z-index:20;display:none;justify-content:center;
  padding:6px max(8px,env(safe-area-inset-right,0px)) calc(6px + env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-left,0px));
  background:color-mix(in oklch,var(--surface) 88%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 -1px 0 var(--line)}
body[data-nav] .bnav{display:flex}
.bnav{transition:transform .28s cubic-bezier(.2,.8,.2,1)}
body.nav-away .bnav,body.nav-kb .bnav{transform:translateY(calc(100% + 34px))}

.bnav-in{display:grid;grid-template-columns:repeat(5,1fr);gap:2px;width:100%;max-width:520px;align-items:end}
.bnav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:var(--nav-h);min-height:56px;border:0;background:none;border-radius:var(--r);color:var(--muted);font-size:.7rem;font-weight:800;cursor:pointer;letter-spacing:.01em}
.bnav button .ico{width:24px;height:24px}
.bnav button[aria-current="page"]{color:var(--acc)}
.bnav button[aria-current="page"] .ico{transform:translateY(-1px)}
.bnav button:active{background:var(--surface-2)}

/* ---------- Footer, documents ---------- */
.credit{text-align:center;color:var(--muted);font-size:12px;margin:-24px auto 0;padding:0 16px max(20px,env(safe-area-inset-bottom,0px))}
body[data-nav] .credit{display:none}
.credit a{color:inherit}
.doc .hero h2{font-size:1rem;margin:8px 0 0}
.doc .hero p,.doc .hero li{margin:0;line-height:1.6}
.doc .hero ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.doc .brand{text-decoration:none}
.docback{margin:0}

@media (max-width:420px){
  .sent{font-size:1.28rem}
  .opts.art .opt{font-size:1.15rem}
  .md{font-size:.78rem}
  .wdw{font-size:1.7rem}
  .hero{padding:16px}
  .lvl b{font-size:1.1rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition:none!important}
  .opt.bad::after{animation:none;transform:scaleX(0);transition:transform 2s linear!important}
}

/* the middle button: a solid key in the level colour, sitting in the bar like the others */
.bnav .fab{color:var(--acc)}
.bnav .fab .fab-in{width:54px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--acc);color:var(--on-acc);box-shadow:0 3px 0 var(--acc-deep);transition:transform .08s ease,box-shadow .08s ease}
.bnav .fab .fab-in .ico{width:20px;height:20px;margin-left:2px}
.bnav .fab:active{background:none}
.bnav .fab:active .fab-in{transform:translateY(2px);box-shadow:0 1px 0 var(--acc-deep)}

/* page titles of the tabs */
.pagehead{display:flex;flex-direction:column;gap:4px;padding:0 4px}
.pagehead h1{font-size:1.75rem}

/* placement test teaser */
.testcard{flex-wrap:nowrap}
.testcard .tc-ico{flex:none;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--acc-soft);color:var(--acc)}
.testcard p{flex:1;display:flex;flex-direction:column;gap:2px}
.testcard .btn{min-height:44px;padding:8px 16px}

/* chart: cards per day */
.chartcard{gap:12px}
.ch-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.ch-sum{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.ch-sum div{display:flex;flex-direction:column}
.ch-sum b{font-size:1.35rem;font-weight:800;line-height:1.2}
.ch-sum small{font-size:.74rem;color:var(--muted);font-weight:600}
.chart{--xh:22px;--top:22px;position:relative;height:170px;display:grid;grid-template-columns:repeat(14,1fr);align-items:stretch;padding-top:var(--top)}
.chart::after{content:"";position:absolute;left:0;right:0;bottom:var(--xh);height:1px;background:var(--line)}
.ch-goal{position:absolute;left:0;right:0;height:0;border-top:1px dashed var(--muted);opacity:.55;bottom:calc(var(--xh) + var(--g) * (100% - var(--xh) - var(--top)));pointer-events:none}
.ch-goal span{position:absolute;left:0;bottom:1px;background:var(--surface);padding:0 4px 0 0;font-size:.66rem;font-weight:700;color:var(--muted)}
.col{display:flex;flex-direction:column;align-items:stretch;min-width:0;padding:0;border:0;background:none;cursor:default;border-radius:6px}
.col .pl{position:relative;flex:1;display:flex;align-items:flex-end;justify-content:center;padding:0 1px}
.col .bar{position:relative;display:block;width:min(18px,100%);border-radius:4px 4px 0 0;background:var(--acc);opacity:.55}
.col.now .bar{opacity:1}
.col .v{position:absolute;left:50%;transform:translateX(-50%);bottom:calc(100% + 2px);font-size:.7rem;font-weight:800;color:var(--ink)}
.col .x{height:var(--xh);display:grid;place-items:center;font-size:.64rem;font-weight:700;color:var(--muted)}
.col.now .x{color:var(--ink)}
.col .tip{display:none;position:absolute;bottom:calc(100% + 4px);left:50%;transform:translateX(-50%);white-space:nowrap;background:var(--ink);color:var(--surface);font-size:.72rem;font-weight:700;padding:4px 8px;border-radius:8px;z-index:2}
.col:hover .tip,.col:focus-visible .tip,.col:focus .tip{display:block}
.col:hover .bar,.col:focus .bar{opacity:1}
.tview summary{cursor:pointer;color:var(--muted);font-size:.82rem;font-weight:700;min-height:32px}
.tview table{margin-top:6px}

/* lesson header */
.lhead{background:var(--surface);border-radius:var(--r-l);box-shadow:var(--shadow);padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.lh-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.lh-eye{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;font-weight:800;color:var(--acc)}
.lh-count{font-size:.75rem;font-weight:700;color:var(--muted);white-space:nowrap}
/* the lesson title is a picker: a soft field with a chevron, so it reads as tappable */
.lh-pick{display:flex;align-items:center;gap:8px;width:100%;margin:2px -8px 0;width:calc(100% + 16px);padding:6px 8px;border:0;border-radius:12px;background:transparent;text-align:left;cursor:pointer;transition:background-color .15s}
.lh-pick:hover,.lh-pick:focus-visible{background:var(--surface-2)}
.lh-pick:active{background:var(--acc-soft)}
.lh-title{flex:1;min-width:0;font-size:1.2rem;font-weight:800;line-height:1.25;letter-spacing:-.01em;word-spacing:.08em}
.lh-chev{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--acc-soft);color:var(--acc);transition:transform .2s ease}
.lh-pick:hover .lh-chev{transform:translateY(2px)}
.lh-chev .ico{width:18px;height:18px}
.lh-sub{margin:0;font-size:.82rem;color:var(--muted);line-height:1.4}
.lh-goal{display:flex;align-items:center;gap:10px;margin-top:6px}
.lh-goal .gbar{flex:1;height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.lh-goal .gbar i{display:block;height:100%;background:var(--ok);border-radius:99px;transition:width .3s ease}
.lh-goal small{font-size:.75rem;font-weight:700;color:var(--muted);white-space:nowrap}
.mode-note{margin:-8px 4px 0;font-size:.8rem;color:var(--muted);font-weight:600}
/* topic of the card when topics are mixed */
.ktopic{flex-basis:100%;display:flex;align-items:center;gap:6px;font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.ktopic .ico{width:14px;height:14px}
/* "mix all topics" links: under the main button and in the lesson header */
.linkbtn.onhero{color:inherit;opacity:.9;margin:-4px auto 0;font-size:.85rem;text-decoration:underline;text-underline-offset:3px}
.linkbtn.inline{display:inline;min-height:0;padding:0;font-size:inherit;text-decoration:underline;text-underline-offset:2px}

/* ---------- Topic picker sheet ---------- */
.picker{position:fixed;inset:0;z-index:40}
.picker[hidden]{display:none}
.pk-bg{position:absolute;inset:0;background:oklch(0.15 0.02 var(--h) / .45);opacity:0;transition:opacity .28s ease}
.pk-sheet{position:absolute;left:0;right:0;bottom:0;margin:0 auto;max-width:640px;max-height:min(84vh,84dvh);display:flex;flex-direction:column;gap:12px;
  background:var(--bg);border-radius:24px 24px 0 0;box-shadow:0 -10px 40px -10px oklch(0 0 0 / .35);
  padding:8px 16px calc(16px + env(safe-area-inset-bottom,0px));transform:translateY(105%);transition:transform .32s cubic-bezier(.2,.85,.25,1)}
.picker.open .pk-bg{opacity:1}
.picker.open .pk-sheet{transform:none}
body.pk-lock{overflow:hidden}
.pk-grab{width:44px;height:5px;border-radius:99px;background:var(--line);margin:2px auto 0;flex:none}
.pk-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex:none}
.pk-head h2{font-size:1.15rem}
.pk-head .iconbtn{width:40px;height:40px;box-shadow:none;background:var(--surface-2)}
.pk-lvs{display:flex;gap:6px;overflow-x:auto;flex:none;padding:2px 2px 6px;scrollbar-width:none}
.pk-lv{flex:none;min-height:40px;min-width:52px;padding:6px 14px;border:0;border-radius:12px;font-weight:800;font-size:.92rem;cursor:pointer;background:var(--surface);color:var(--acc);box-shadow:inset 0 0 0 2px var(--line),0 3px 0 var(--line)}
.pk-lv.on{background:var(--acc);color:var(--on-acc);box-shadow:0 3px 0 var(--acc-deep)}
.pk-list{overflow-y:auto;overscroll-behavior:contain;margin:0 -16px;padding:0 16px 4px}
.pk-list h3{margin:14px 4px 8px;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:800}
.pk-list ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.pk-item{width:100%;display:flex;align-items:center;gap:12px;min-height:60px;padding:10px 12px;border:0;border-radius:var(--r);background:var(--surface);box-shadow:var(--shadow);text-align:left;cursor:pointer;transition:transform .08s ease}
.pk-item:active{transform:scale(.985)}
.pk-item.on{box-shadow:inset 0 0 0 2px var(--acc),var(--shadow)}
.pk-no{flex:none;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-weight:800;font-size:.9rem;background:var(--acc-soft);color:var(--acc)}
.pk-no .ico{width:16px;height:16px}
.pk-tx{flex:1;min-width:0;display:flex;flex-direction:column}
.pk-tx b{font-size:.95rem;line-height:1.3}
.pk-tx small{font-size:.76rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pk-st{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:2px;color:var(--acc)}
.pk-st small{font-size:.74rem;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}
.pk-st i{font-style:normal;font-size:.66rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;background:var(--acc-soft);color:var(--acc);padding:2px 7px;border-radius:99px}
.pk-st .ico{width:18px;height:18px}
/* DE | TR switch: two letters, the active one filled in the level colour */
.langbtn{flex:none;display:inline-flex;align-items:center;gap:2px;height:44px;padding:4px;border:0;border-radius:999px;background:var(--surface);box-shadow:var(--shadow);cursor:pointer;font-weight:800;font-size:.78rem;letter-spacing:.04em}
.langbtn span{display:grid;place-items:center;min-width:32px;height:36px;border-radius:999px;color:var(--muted);transition:background-color .2s ease,color .2s ease}
.langbtn span.on{background:var(--acc);color:var(--on-acc)}
.langbtn:active span.on{transform:scale(.94)}
.lh-right{display:flex;align-items:center;gap:8px}
.lh-right .langbtn{height:34px;padding:3px;box-shadow:none;background:var(--surface-2)}
.lh-right .langbtn span{min-width:28px;height:28px;font-size:.7rem}
/* narrow phones: with the language and theme switches the account chip keeps only its avatar */
@media (max-width:430px){.top .acct span{display:none}.top .acct{padding:4px}}
/* Turkish hint under the German task line */
.q-tr{display:block;font-size:.78rem;font-weight:600;color:var(--muted);margin-top:1px}
/* install card (home) and iPhone steps sheet */
.instcard{position:relative;display:flex;align-items:center;gap:14px;padding:16px 50px 16px 16px;background:var(--surface);border-radius:var(--r-l);box-shadow:inset 0 0 0 2px var(--acc-soft),var(--shadow)}
.instcard .tc-ico{flex:none;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--acc);color:var(--on-acc)}
.instcard p{flex:1;margin:0;display:flex;flex-direction:column;gap:2px;min-width:0}
.instcard .btn{min-height:44px;padding:8px 16px;flex:none}
.instcard .instx{position:absolute;top:6px;right:6px;width:36px;height:36px;box-shadow:none;background:transparent;color:var(--muted)}
.instcard .instx .ico{width:18px;height:18px}
@media (max-width:420px){.instcard{flex-wrap:wrap}.instcard .btn{width:100%}}
.isteps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.isteps li{display:flex;align-items:center;gap:12px;background:var(--surface);border-radius:var(--r);padding:12px;box-shadow:var(--shadow)}
.is-no{flex:none;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:.75rem;font-weight:800;background:var(--surface-2);color:var(--muted)}
.is-ico{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--acc-soft);color:var(--acc)}
.is-ico .ico{width:24px;height:24px}
.is-tx{display:flex;flex-direction:column;min-width:0}
.is-tx b{font-size:.95rem}
.is-tx small{font-size:.8rem;color:var(--muted)}
#instsheet .pk-sheet{gap:14px}
/* install sheet: app icon with three perks */
.is-hero{display:flex;align-items:center;gap:16px;background:var(--surface);border-radius:var(--r-l);padding:14px 16px;box-shadow:var(--shadow)}
.is-hero img{flex:none;width:64px;height:64px;border-radius:16px;box-shadow:0 6px 16px -8px oklch(0 0 0 / .4)}
.perks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;font-size:.88rem;font-weight:600}
.perks li{display:flex;align-items:center;gap:8px}
.perks .ico{width:18px;height:18px;color:var(--acc)}
#instsheet .linkbtn{align-self:center;color:var(--muted)}
/* names used by the admin page (written for the first design) */
:root{--card:var(--surface);--royal:var(--acc);--display:var(--font)}

/* ---------- Welcome for new visitors ---------- */
.ob-dots{flex:1;display:flex;justify-content:center;gap:6px}
.ob-dots i{width:28px;height:6px;border-radius:99px;background:var(--line);transition:background-color .2s}
.ob-dots i.on{background:var(--acc)}
.wl-hero{display:flex;flex-direction:column;gap:8px;padding:8px 4px 0}
.wl-hero h1{font-size:1.9rem;line-height:1.15}
.wl-sub{margin:0;color:var(--muted);font-size:1rem;font-weight:500}
.kk.demo .kb{padding-bottom:16px}
.demo-msg{margin:6px 0 0;font-weight:700;color:var(--red);animation:pop .2s ease-out}
.demo-msg.ok{color:var(--ok)}
.wl-perks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.wl-perks li{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border-radius:var(--r);padding:12px 14px;box-shadow:var(--shadow)}
.wl-perks .ico{flex:none;width:22px;height:22px;color:var(--acc);margin-top:2px}
.wl-perks span{display:flex;flex-direction:column;font-size:.86rem;color:var(--muted);line-height:1.4}
.wl-perks b{color:var(--ink);font-size:.95rem}
.ob-cta{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:4px}
.ob-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.ob-opt{width:100%;display:flex;align-items:center;gap:12px;min-height:64px;padding:12px 14px;border:0;border-radius:var(--r);background:var(--surface);box-shadow:inset 0 0 0 2px var(--line),0 3px 0 var(--line);text-align:left;cursor:pointer;transition:transform .08s ease}
.ob-opt:hover{box-shadow:inset 0 0 0 2px var(--acc),0 3px 0 var(--acc-deep)}
.ob-opt:active{transform:translateY(2px)}
.ob-opt.on{box-shadow:inset 0 0 0 2px var(--acc),0 3px 0 var(--acc-deep);background:var(--acc-soft)}
.ob-opt .pk-no{font-size:.85rem}
.ob-opt>.ico{flex:none;width:20px;height:20px;color:var(--acc)}
/* guest reached the daily goal: offer an account, without stopping the lesson */
.savecard{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--acc-soft);border-radius:var(--r);padding:12px 14px}
.savecard p{flex:1;margin:0;display:flex;flex-direction:column;gap:2px;min-width:180px}
.savecard .btn{min-height:44px;padding:8px 16px}