@font-face{font-family:"Bricolage Grotesque";src:url(../fonts/bricolage-grotesque-latin-opsz-normal.woff2) format("woff2-variations");font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"Instrument Sans";src:url(../fonts/instrument-sans-latin-wght-normal.woff2) format("woff2-variations");font-weight:400 700;font-style:normal;font-display:swap}
@font-face{font-family:"Instrument Sans";src:url(../fonts/instrument-sans-latin-wght-italic.woff2) format("woff2-variations");font-weight:400 700;font-style:italic;font-display:swap}
/* Dutch Studio — layout: sticky header with tabs; on desktop a fixed-width week rail + one content column; on phones the rail becomes a horizontal chip strip. */
:root{
  --bg:#f4f5f8; --surface:#ffffff; --surface2:#e9edf3; --fg:#16212c; --muted:#5b6b7c; --line:#d4dbe5;
  --accent:#1c4d99; --accent-fg:#ffffff; --accent-soft:#e1eaf8;
  --orange:#e46d26; --orange-soft:#fbe4d5;
  --ok:#1d8447; --ok-soft:#d9f2e2; --bad:#c13a3a; --bad-soft:#f8dcdc;
  --display:"Bricolage Grotesque","Instrument Sans",system-ui,sans-serif;
  --body:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r:10px; --gutter-l:max(16px,env(safe-area-inset-left,0px)); --gutter-r:max(16px,env(safe-area-inset-right,0px));
  color-scheme:light;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --bg:#0f141c; --surface:#171f2a; --surface2:#1f2a38; --fg:#e7ecf3; --muted:#9aa8b9; --line:#2b3748;
  --accent:#7ea9ee; --accent-fg:#0c192e; --accent-soft:#1b2b45;
  --orange:#f08b4e; --orange-soft:#3b2416;
  --ok:#5ccd88; --ok-soft:#153425; --bad:#f08484; --bad-soft:#3b1b1b; color-scheme:dark }}
:root[data-theme="dark"]{
  --bg:#0f141c; --surface:#171f2a; --surface2:#1f2a38; --fg:#e7ecf3; --muted:#9aa8b9; --line:#2b3748;
  --accent:#7ea9ee; --accent-fg:#0c192e; --accent-soft:#1b2b45;
  --orange:#f08b4e; --orange-soft:#3b2416;
  --ok:#5ccd88; --ok-soft:#153425; --bad:#f08484; --bad-soft:#3b1b1b; color-scheme:dark }

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%}
h1,h2,h3,h4{font-family:var(--display);line-height:1.15;margin:0;text-wrap:balance}
p{margin:0}
a{color:var(--accent)}
button{font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit;max-width:100%}
[hidden]{display:none !important}
.hidden{display:none !important}
img{max-width:100%}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--surface);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-block:10px 6px;padding-left:var(--gutter-l);padding-right:var(--gutter-r);max-width:1240px;margin:0 auto}
.brand{font-family:var(--display);font-weight:800;font-size:21px;letter-spacing:-.01em;color:var(--fg);text-decoration:none}
.brand span{color:var(--orange)}
.prog{flex:1 1 160px;min-width:120px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.bar{flex:1;height:8px;background:var(--surface2);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--orange);width:0;transition:width .3s}
.count{display:flex;gap:14px;margin-left:auto;font-variant-numeric:tabular-nums}
.count div{display:flex;flex-direction:column;align-items:flex-end;line-height:1.1}
.count b{font-family:var(--display);font-size:22px;font-weight:800;color:var(--orange)}
.count small{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em}
@media (max-width:560px){.top-in{gap:8px 12px}.prog{order:3;flex:1 1 100%}.count{margin-left:auto;gap:10px}.count b{font-size:18px}.count small{font-size:9px}}
.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;padding-left:var(--gutter-l);padding-right:var(--gutter-r);max-width:1240px;margin:0 auto}
.tabs::-webkit-scrollbar{display:none}
.tab{padding:8px 12px 10px;border-bottom:3px solid transparent;color:var(--muted);font-weight:600;white-space:nowrap;text-decoration:none;margin-bottom:-1px}
.tab[aria-current="page"]{color:var(--fg);border-bottom-color:var(--orange)}
.tab:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;border-radius:6px}

/* page grid */
.wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;max-width:1240px;margin:0 auto;padding-block:20px 48px;padding-left:var(--gutter-l);padding-right:var(--gutter-r)}
.wrap.has-rail{grid-template-columns:250px minmax(0,1fr);gap:28px}
@media (max-width:860px){.wrap.has-rail{grid-template-columns:minmax(0,1fr);gap:14px}}
.main{min-width:0;display:flex;flex-direction:column;gap:20px}
.foot{color:var(--muted);font-size:13px;text-align:center;padding-block:20px 40px;padding-left:var(--gutter-l);padding-right:var(--gutter-r)}

/* rail */
.rail{position:sticky;top:calc(env(safe-area-inset-top,0px) + 100px);align-self:start;display:flex;flex-direction:column;gap:3px;max-height:calc(100vh - 120px);overflow-y:auto}
@media (max-width:860px){.rail{position:static;flex-direction:row;overflow-x:auto;max-height:none;padding-bottom:6px;scrollbar-width:thin}}
.phase-lbl{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:10px 0 2px;font-weight:600}
@media (max-width:860px){.phase-lbl{display:none}}
.wk{display:flex;align-items:center;gap:10px;border:1px solid transparent;background:none;border-radius:8px;padding:6px 10px;text-align:left;white-space:nowrap;flex:none;text-decoration:none;color:var(--fg)}
.wk:hover{background:var(--surface2)}
.wk[aria-current="true"]{background:var(--accent-soft);border-color:var(--accent)}
.wk .n{font-family:var(--display);font-weight:800;font-size:13px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--surface2);flex:none;font-variant-numeric:tabular-nums}
.wk.done .n{background:var(--ok);color:#fff}
.wk.cur .n{box-shadow:0 0 0 2px var(--orange)}
.wk .t{font-size:13px;line-height:1.2}
.wk .t small{display:block;color:var(--muted);font-size:11px}
@media (max-width:860px){.wk .t small{display:none}}

/* cards & type */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;min-width:0}
@media (max-width:480px){.card{padding:14px}}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--orange);font-weight:600}
.h-week{font-size:clamp(26px,4vw,36px);font-weight:800;letter-spacing:-.02em}
.sub{color:var(--muted);margin-top:4px}
.lesson{max-width:72ch}
.lesson i,.ex-i{color:var(--accent);font-style:normal;font-weight:500}
.lesson p+p{margin-top:10px}
.sec-h{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.sec-h h3{font-size:19px;font-weight:700}
.sec-h .spacer{flex:1}
.chip{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;padding:3px 8px;border-radius:99px;background:var(--surface2);color:var(--muted);white-space:nowrap}
.chip.ex{background:var(--accent-soft);color:var(--accent)}
.chip.spk{background:var(--orange-soft);color:var(--orange)}
.chip.knm{background:var(--ok-soft);color:var(--ok)}
.instr{color:var(--muted);font-size:14px;margin-bottom:10px;max-width:72ch}
.note{font-size:13px;color:var(--muted)}
.mt{margin-top:10px}

/* grammar box */
.gram{display:grid;gap:12px}
.gram-rule{border-left:4px solid var(--accent);padding:8px 14px;background:var(--bg);border-radius:0 8px 8px 0;min-width:0;overflow:hidden}
.gram-rule h4{font-size:16px;margin-bottom:4px}
.gram-rule p{font-size:15px;max-width:72ch}
.gram-rule .ex{display:block;margin-top:6px;color:var(--accent);font-weight:500}
.gram-rule .ex small{color:var(--muted);font-weight:400}
.gram-rule table{margin-top:8px;font-size:14px;width:auto}
.gram-rule td,.gram-rule th{padding:3px 10px 3px 0;border:0}

/* exercises */
.items{display:flex;flex-direction:column;gap:8px}
.item{display:grid;grid-template-columns:26px minmax(0,1fr);gap:8px;align-items:start}
.item .num{color:var(--muted);font-size:13px;padding-top:7px;font-variant-numeric:tabular-nums}
.item .q{min-width:0}
.gapq{display:inline;line-height:2.2}
.gap{display:inline-block;width:9em;max-width:calc(100vw - 110px);border:0;border-bottom:2px solid var(--line);background:transparent;padding:2px 6px;text-align:center;margin:0 3px;border-radius:0}
.gap:focus{outline:none;border-bottom-color:var(--accent)}
.gap.ok{border-bottom-color:var(--ok);background:var(--ok-soft)}
.gap.bad{border-bottom-color:var(--bad);background:var(--bad-soft)}
.line{display:block;width:100%;border:1px solid var(--line);background:var(--bg);padding:7px 10px;border-radius:6px;margin-top:4px}
.line:focus{outline:2px solid var(--accent);outline-offset:-1px}
.line.ok{border-color:var(--ok);background:var(--ok-soft)}
.line.bad{border-color:var(--bad);background:var(--bad-soft)}
.key{font-size:14px;color:var(--muted);margin-top:4px}
.key b{color:var(--ok);font-weight:600}
.opts{display:inline-flex;gap:6px;margin-right:8px;vertical-align:middle;flex-wrap:wrap}
.opt{border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:3px 10px;font-weight:600}
.opt[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent)}
.opt.ok{background:var(--ok-soft);border-color:var(--ok)}
.opt.bad{background:var(--bad-soft);border-color:var(--bad)}
.mc{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.mc label{display:flex;gap:10px;align-items:flex-start;padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);cursor:pointer}
.mc label.ok{border-color:var(--ok);background:var(--ok-soft)}
.mc label.bad{border-color:var(--bad);background:var(--bad-soft)}
.mc input{margin-top:4px;accent-color:var(--accent)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;align-items:center}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:7px 14px;font-weight:600;line-height:1.3}
.btn:hover{background:var(--surface2)}
.btn.primary{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.small{padding:3px 9px;font-size:13px}
.btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.score{font-weight:600;color:var(--muted)}
.score.good{color:var(--ok)}

/* speak button */
.say{border:1px solid var(--line);background:var(--surface);border-radius:99px;width:28px;height:28px;display:inline-grid;place-items:center;vertical-align:middle;margin-left:6px;padding:0;color:var(--accent);flex:none}
.say:hover{background:var(--accent-soft)}
.say svg{width:15px;height:15px;fill:currentColor}
.say.big{width:44px;height:44px}.say.big svg{width:22px;height:22px}
.tts-off{font-size:13px;color:var(--muted)}

.reveal{border:1px dashed var(--line);border-radius:8px;padding:10px 12px;margin-top:8px;background:var(--bg);font-size:15px}
.reveal summary{cursor:pointer;font-weight:600;color:var(--accent);list-style:none}
.reveal summary::-webkit-details-marker{display:none}
.reveal summary::before{content:"▸ "}
.reveal[open] summary::before{content:"▾ "}
.reveal p{margin-top:8px}
.model{font-style:italic}

.qlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.qcard{border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--bg);display:flex;flex-direction:column;gap:8px;min-width:0}
.qcard .qq{font-weight:600}
.qcard .ans{font-size:14px;color:var(--muted)}
.qcard .ans i{color:var(--fg)}
.flipbtn{align-self:flex-start;border:0;background:none;color:var(--accent);font-weight:600;padding:0;font-size:14px}

.dialog{background:var(--bg);border-radius:8px;padding:12px 14px;margin-top:10px;font-size:15px;line-height:1.6}
.dialog b{color:var(--orange)}
.dialog .turn{display:flex;gap:8px;align-items:flex-start}
.dialog .turn .who{color:var(--orange);font-weight:700;flex:none;width:2.2em}

.check{display:flex;flex-direction:column;gap:6px}
.ck{display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:8px;border:1px solid var(--line);background:var(--bg);cursor:pointer}
.ck input{width:18px;height:18px;margin-top:3px;accent-color:var(--ok);flex:none}
.ck.on{background:var(--ok-soft);border-color:var(--ok)}
.ck .d{font-weight:700;font-family:var(--display);width:40px;flex:none}
.ck .w{min-width:0;font-size:15px}

table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}
.tscroll{overflow-x:auto;max-width:100%}

/* links list */
.linkrow{display:grid;grid-template-columns:minmax(0,1fr);gap:8px}
.lk{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:start;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg)}
.lk .kind{font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:700;color:var(--orange);padding-top:3px;width:70px}
.lk a{font-weight:600}
.lk small{display:block;color:var(--muted);font-size:13px}

/* overview */
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px;align-items:center}
@media (max-width:720px){.hero{grid-template-columns:minmax(0,1fr)}}
.hero h1{font-size:clamp(30px,5vw,46px);font-weight:800;letter-spacing:-.02em}
.hero p{margin-top:10px;max-width:60ch}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat{background:var(--surface2);border-radius:8px;padding:12px 14px;min-width:0}
.stat b{font-family:var(--display);font-size:26px;font-weight:800;display:block;font-variant-numeric:tabular-nums}
.stat small{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.phases{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
@media (max-width:720px){.phases{grid-template-columns:1fr 1fr}}
@media (max-width:420px){.phases{grid-template-columns:1fr}}
.ph{border-left:4px solid var(--accent);padding:8px 12px;background:var(--bg);border-radius:0 8px 8px 0;font-size:14px}
.ph.p2{border-color:var(--orange)}.ph.p3{border-color:var(--ok)}.ph.p4{border-color:var(--muted)}
.ph b{font-family:var(--display);display:block;font-size:15px}
.ph small{color:var(--muted);display:block;margin-bottom:4px}
.todo{background:var(--orange-soft);border:1px solid var(--orange);border-radius:8px;padding:12px 14px}
.todo b{color:var(--orange)}

/* flashcards */
.fc-wrap{display:flex;flex-direction:column;gap:14px;align-items:center}
.fc{width:100%;max-width:540px;min-height:210px;border:1px solid var(--line);border-radius:14px;background:var(--surface);display:grid;place-items:center;text-align:center;padding:26px 24px;cursor:pointer;position:relative;user-select:none}
.fc .big{font-family:var(--display);font-size:clamp(26px,5vw,38px);font-weight:700;overflow-wrap:anywhere}
.fc .side{position:absolute;top:10px;left:14px;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.fc .ex{display:block;margin-top:10px;color:var(--muted);font-style:italic;font-size:15px}
.fc .say.big{position:absolute;top:8px;right:10px}
.fc-ctl{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;align-items:center}
.fc-ctl select{padding:7px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--fg)}
.fc-count{color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}
.vocab-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:6px;font-size:14px}
.vocab-grid div{padding:5px 8px;background:var(--bg);border-radius:6px;display:flex;align-items:center;gap:4px;min-width:0}
.vocab-grid div span{min-width:0;overflow-wrap:anywhere}
.vocab-grid b{font-weight:600}

/* placement test */
.test-prog{display:flex;gap:4px;margin:8px 0 14px}
.test-prog i{flex:1;height:6px;border-radius:99px;background:var(--surface2)}
.test-prog i.done{background:var(--accent)}
.test-q{font-size:18px;font-weight:600;margin-bottom:8px}
.result{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.result .stat b{font-size:22px}
.level{font-family:var(--display);font-size:clamp(28px,5vw,40px);font-weight:800;color:var(--orange)}

/* grammar index */
.gidx{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px}
.gidx a{display:block;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);text-decoration:none;color:var(--fg);font-weight:600}
.gidx a small{display:block;color:var(--muted);font-weight:400;font-size:13px}
.gidx a:hover{border-color:var(--accent)}

@media (prefers-reduced-motion:reduce){*{transition:none !important}}

.src{font-size:13px;color:var(--muted,#777);margin:18px 4px 4px;line-height:1.5}.src a{color:inherit}
.foot a{color:inherit}

/* ---------- v3: today, settings, phone navigation ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.tile{display:block;padding:14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);text-decoration:none;color:var(--fg);min-height:72px}
.tile b{display:block;font-family:var(--display);font-size:16px}
.tile small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.tile:hover{border-color:var(--accent)}
.today .ck.big{margin-top:14px;padding:14px;font-size:16px}
.today .ck.big input{width:24px;height:24px}
.wkbar{display:flex;gap:6px}
.wkbar span{flex:1;text-align:center;font-size:12px;font-weight:600;padding:6px 0;border-radius:6px;background:var(--surface2);color:var(--muted)}
.wkbar span.on{background:var(--ok);color:#fff}
.wkbar span.now{box-shadow:inset 0 0 0 2px var(--orange)}
.form{display:flex;flex-direction:column;gap:14px;max-width:520px}
.fld{display:flex;flex-direction:column;gap:6px;border:0;padding:0;margin:0}
.fld>span,.fld legend{font-weight:600}
.fld small{display:block;font-weight:400;color:var(--muted);font-size:13px}
.fld input[type=date],.fld input[type=time]{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:10px 12px;min-height:44px;font-size:16px;max-width:240px}
.ck-inline{display:flex;gap:10px;align-items:center;font-size:15px}
.ck-inline input{width:20px;height:20px;accent-color:var(--accent)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;align-self:flex-start;margin:4px 0}
.seg label{position:relative}
.seg input{position:absolute;opacity:0;inset:0}
.seg span{display:block;padding:10px 18px;min-height:44px;font-weight:600;cursor:pointer}
.seg input:checked+span{background:var(--accent);color:var(--accent-fg)}
.seg input:focus-visible+span{outline:2px solid var(--orange);outline-offset:-2px}
.days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;max-width:360px}
.days label{position:relative}
.days input{position:absolute;opacity:0;inset:0}
.days span{display:grid;place-items:center;width:100%;max-width:44px;aspect-ratio:1;min-height:40px;border-radius:50%;border:1px solid var(--line);font-weight:700;cursor:pointer;background:var(--bg)}
.days input:checked+span{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}
.days input:focus-visible+span{outline:2px solid var(--orange);outline-offset:2px}
.btn.danger{color:var(--bad);border-color:var(--bad)}
label.btn{cursor:pointer}
.morelist{display:flex;flex-direction:column}
.morelist a{display:block;padding:14px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--fg)}
.morelist a:last-child{border-bottom:0}
.morelist small{display:block;color:var(--muted);font-size:13px}
.hero1 h1{font-size:clamp(28px,6vw,44px)}
.foot p+p{margin-top:6px}
.foot .imprint{font-size:12px}
.lesson ul{margin:6px 0;padding-left:20px}

/* bottom navigation on phones; the top tab row is hidden there */
.bnav{display:none}
@media (max-width:760px){
  .tabs{display:none}
  .bnav{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:10;background:var(--surface);border-top:1px solid var(--line);padding:4px max(6px,env(safe-area-inset-right)) calc(4px + env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left))}
  .bnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;min-height:52px;font-size:11px;font-weight:600;color:var(--muted);text-decoration:none;border-radius:8px}
  .bnav svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .bnav a[aria-current="page"]{color:var(--accent)}
  .bnav a[aria-current="page"] svg{stroke-width:2.4}
  body{padding-bottom:calc(68px + env(safe-area-inset-bottom))}
  .top{position:static}
  .wrap{padding-top:12px}
}
/* bigger touch targets on touch screens */
@media (pointer:coarse){
  .say{width:38px;height:38px}.say svg{width:18px;height:18px}
  .btn{min-height:44px;padding:9px 16px}
  .btn.small{min-height:36px}
  .opt{min-height:40px;padding:6px 14px}
  .mc label{padding:11px 12px}
  .flipbtn{padding:8px 0}
  .ck{padding:12px}
  .gap{font-size:16px}
  .line{font-size:16px;min-height:44px}
}