/* Lettertypen staan lokaal in fonts/ (SIL Open Font License). */
@font-face{font-family:"Unbounded";font-style:normal;font-display:swap;font-weight:200 900;src:url(fonts/unbounded-cyrillic-wght-normal.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Unbounded";font-style:normal;font-display:swap;font-weight:200 900;src:url(fonts/unbounded-latin-ext-wght-normal.woff2) format("woff2-variations");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-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Unbounded";font-style:normal;font-display:swap;font-weight:200 900;src:url(fonts/unbounded-latin-wght-normal.woff2) format("woff2-variations");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:"Golos Text";font-style:normal;font-display:swap;font-weight:400 900;src:url(fonts/golos-text-cyrillic-wght-normal.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Golos Text";font-style:normal;font-display:swap;font-weight:400 900;src:url(fonts/golos-text-latin-ext-wght-normal.woff2) format("woff2-variations");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-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Golos Text";font-style:normal;font-display:swap;font-weight:400 900;src:url(fonts/golos-text-latin-wght-normal.woff2) format("woff2-variations");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}
:root{
  /* Plan: Joegoslavisch-modernistisch affiche. Brede display-letters, marineblauw vlak,
     Servisch rood alleen als signaal. Groot Cyrillisch als beeldmerk op het startscherm.
     Layout: vaste navigatie links (onderaan op telefoon), één leeskolom rechts. */
  --paper:#f3f4f7;
  --surface:#ffffff;
  --ink:#141a2b;
  --muted:#5a6274;
  --line:#d8dce6;
  --navy:#12234f;
  --on-navy:#ffffff;
  --serb:#1d4a9c;
  --accent:#c8202f;
  --good:#1c7a4b;
  --bad:#b42318;
  --tint:color-mix(in srgb, var(--serb) 8%, var(--paper));
  --font-display:"Unbounded", "Arial Black", "Segoe UI", sans-serif;
  --font-body:"Golos Text", "Segoe UI", Roboto, Arial, sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0d111d; --surface:#161b2b; --ink:#e7eaf2; --muted:#9aa3b8; --line:#2a3148;
    --navy:#1b2c63; --serb:#93b4ff; --accent:#ff6b76; --good:#5fd09a; --bad:#ff8a80;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0d111d; --surface:#161b2b; --ink:#e7eaf2; --muted:#9aa3b8; --line:#2a3148;
  --navy:#1b2c63; --serb:#93b4ff; --accent:#ff6b76; --good:#5fd09a; --bad:#ff8a80;
  color-scheme:dark;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.6}
a{color:var(--serb)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
[hidden]{display:none !important}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.2;text-wrap:balance;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(24px,3.4vw,32px);margin:0 0 6px}
h2{font-size:clamp(22px,3vw,28px);margin:4px 0 12px}
h3{font-size:18px;margin:32px 0 10px}
h4{font-size:15px;margin:22px 0 6px}
p,li{max-width:68ch}
.muted{color:var(--muted)}
small{font-size:14px}

/* ---------- Schil ---------- */
.shell{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100%}
.side{position:sticky;top:0;align-self:start;height:100vh;display:flex;flex-direction:column;gap:24px;padding:24px 16px;border-right:1px solid var(--line);background:var(--surface)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-family:var(--font-display);font-weight:800;font-size:18px;line-height:1.1}
.brand small{display:block;font-family:var(--font-body);font-weight:500;font-size:12.5px;color:var(--muted);letter-spacing:.02em;margin-top:3px}
.flag{display:grid;grid-template-rows:repeat(3,1fr);width:10px;height:36px;border-radius:2px;overflow:hidden;border:1px solid var(--line);flex:none}
.flag i:nth-child(1){background:#c8202f}.flag i:nth-child(2){background:#1d4a9c}.flag i:nth-child(3){background:#fff}
.side nav{display:grid;gap:2px}
.side nav a{display:block;padding:9px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:500}
.side nav a:hover{background:var(--tint)}
.side nav a.on{background:var(--navy);color:var(--on-navy)}
.side nav a .badge{float:right;font-size:12px;font-weight:700;background:var(--accent);color:#fff;border-radius:999px;padding:0 7px;line-height:20px;margin-top:3px}
.side-foot{margin-top:auto;display:grid;gap:10px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--paper);width:max-content}
.seg button{font-size:14px;border:0;background:transparent;padding:6px 13px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--serb);color:var(--surface)}
.sync{font-size:12.5px;color:var(--muted);margin:0;line-height:1.4}
main{padding:28px clamp(16px,4vw,48px) 96px;min-width:0}
.view{max-width:880px;margin:0 auto}
.lead{color:var(--muted);margin:0 0 20px;max-width:60ch}

@media (max-width: 860px){
  .shell{display:block}
  .side{position:sticky;top:0;z-index:20;height:auto;flex-direction:row;align-items:center;gap:12px;padding:10px 16px;border-right:0;border-bottom:1px solid var(--line)}
  .brand{font-size:15px;margin-right:auto}
  .brand small{display:none}
  .flag{height:26px}
  .side nav{position:fixed;left:0;right:0;bottom:0;z-index:30;grid-template-columns:repeat(5,1fr);gap:0;background:var(--surface);border-top:1px solid var(--line);padding:4px 4px calc(4px + env(safe-area-inset-bottom,0px))}
  .side nav a{text-align:center;font-size:12.5px;padding:10px 2px;border-radius:8px}
  .side nav a .badge{display:none}
  .side-foot{margin:0}
  .sync{display:none}
  main{padding:20px 16px 110px}
}

/* ---------- Knoppen, panelen ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15.5px;font-weight:600;padding:9px 18px;border-radius:999px;border:1.5px solid var(--serb);background:transparent;color:var(--serb);cursor:pointer;text-decoration:none;line-height:1.3}
.btn:hover{background:var(--tint)}
.btn.primary{background:var(--serb);color:var(--surface)}
.btn.primary:hover{background:color-mix(in srgb,var(--serb) 88%,var(--ink))}
.btn.red{border-color:var(--accent);background:var(--accent);color:#fff}
.btn.small{font-size:14px;padding:5px 12px}
.btn.quiet{border-color:var(--line);color:var(--ink)}
.btn[disabled]{opacity:.45;cursor:default}
.btns{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.panel > h2,.panel > h3{margin-top:0}
.panel h3{font-size:16px;margin-bottom:8px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.pill{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.03em;border-radius:999px;padding:1px 9px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}
.pill.ok{border-color:var(--good);color:var(--good)}
.pill.due{border-color:var(--accent);color:var(--accent)}
.bar{height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;background:var(--serb);border-radius:999px}
.stat{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin:10px 0 4px;font-size:15px}
.stat b{font-variant-numeric:tabular-nums}
.field{display:grid;gap:4px;font-size:14px;color:var(--muted)}
input[type="text"],input[type="search"],input[type="date"],select,textarea{font-size:16px;padding:8px 11px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink);max-width:100%}
textarea{width:100%;min-height:96px;resize:vertical;line-height:1.5}

/* ---------- Start ---------- */
.hero{background:var(--navy);color:var(--on-navy);border-radius:18px;padding:clamp(22px,4vw,36px);margin-bottom:16px;overflow:hidden}
.hero .cyr{font-family:var(--font-display);font-weight:800;font-size:clamp(40px,9.5vw,92px);line-height:1;letter-spacing:-.03em;margin:0;overflow-wrap:anywhere}
.hero .rule{height:6px;width:100%;max-width:220px;background:var(--accent);border-radius:3px;margin:16px 0 14px;transform-origin:left;animation:rule .7s cubic-bezier(.2,.7,.2,1) both}
@keyframes rule{from{transform:scaleX(.35)}to{transform:scaleX(1)}}
@media (prefers-reduced-motion: reduce){.hero .rule{animation:none}}
.hero .lat{font-size:19px;font-weight:600;margin:0}
.hero .lat span{opacity:.75;font-weight:400}
.hero .sub{margin:6px 0 0;opacity:.85;font-size:15.5px}
.week{display:flex;gap:8px;margin-top:6px}
.week div{flex:1;text-align:center;font-size:12px;color:var(--muted)}
.week i{display:block;height:8px;border-radius:999px;background:var(--line);margin-bottom:4px}
.week .act i{background:var(--good)}
.week .now{color:var(--ink);font-weight:700}
.todo{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.todo li{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line);max-width:none}
.todo li:last-child{border-bottom:0}
.todo .t{font-weight:600}
.todo .d{display:block;font-size:14px;color:var(--muted);font-weight:400}
.todo li.done .t{text-decoration:line-through;color:var(--muted)}
input[type="checkbox"]{width:20px;height:20px;accent-color:var(--good);flex:none}

/* ---------- Lessenlijst ---------- */
.toc{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.toc li{max-width:none;border-bottom:1px solid var(--line)}
.toc a{display:grid;grid-template-columns:64px 1fr auto;gap:12px;align-items:center;padding:14px 6px;text-decoration:none;color:var(--ink)}
.toc a:hover{background:var(--tint)}
.toc .n{font-family:var(--font-display);font-weight:800;font-size:24px;color:var(--serb);font-variant-numeric:tabular-nums}
.toc .n.word{font-size:13px;letter-spacing:.04em;text-transform:uppercase}
.toc .ti{font-weight:600}
.toc .me{display:block;font-size:14px;color:var(--muted);font-weight:400}
.toc li.done .n{color:var(--good)}

/* ---------- Les ---------- */
.lesbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
.lesbar .sp{margin-left:auto}
section.chapter{padding-top:8px}
#view-naslag section.chapter{padding-top:28px;border-top:1px solid var(--line);margin-top:36px}
#view-naslag section.chapter:first-of-type{border-top:0;margin-top:0;padding-top:0}
.eyebrow{margin:0;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700}
.goal{background:var(--tint);border-radius:10px;padding:12px 16px;margin:16px 0}
.goal strong{color:var(--serb)}
.s, b.s{color:var(--serb);font-weight:600}
table.s td, tbody.s td{color:var(--serb);font-weight:600}
table.s td.nl, tbody.s td.nl, .s .nl{color:var(--ink);font-weight:400}
.tbl{overflow-x:auto;margin:12px 0 20px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:16px}
th,td{text-align:left;padding:7px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td, tr:last-child th{border-bottom:0}
thead th{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--tint);font-weight:700}
tbody th{font-weight:600;color:var(--muted);white-space:nowrap}
.vocab td:first-child{width:46%}
.num td, .num th{font-variant-numeric:tabular-nums}
ul.ex{list-style:none;padding:0;margin:12px 0 20px;display:grid;gap:8px}
ul.ex li{display:grid;padding-left:14px;border-left:3px solid var(--line)}
ul.ex .nl{color:var(--muted);font-size:15.5px}
.dialog{display:grid;grid-template-columns:max-content 1fr;gap:6px 14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:12px 0 20px}
.dialog .who{font-weight:600;color:var(--muted);font-size:15px;padding-top:2px}
.dialog .line .s{display:block}
.dialog .line .nl{display:block;color:var(--muted);font-size:15px}
@media (max-width:480px){.dialog{grid-template-columns:1fr}.dialog .who{padding-top:8px}}
.note{border-left:4px solid var(--accent);background:var(--surface);padding:12px 16px;border-radius:0 10px 10px 0;margin:16px 0}
.note > :first-child{margin-top:0}.note > :last-child{margin-bottom:0}
.note .label{display:block;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--accent);margin-bottom:2px}
.note.culture{border-left-color:var(--serb)}
.note.culture .label{color:var(--serb)}
.abc{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin:16px 0}
.abc div{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--surface)}
.abc .pair{font-family:var(--font-display);font-weight:700;font-size:22px;line-height:1.2}
.abc .pair .c{color:var(--accent);margin-left:8px}
.abc .hint{font-size:14px;color:var(--muted);line-height:1.35;margin-top:4px}
.abc .w{font-size:14px;margin-top:4px}
.lesfoot{margin-top:36px;padding:18px 20px;border-radius:14px;background:var(--tint);display:grid;gap:12px}
.lesfoot p{margin:0;font-weight:600}

/* ---------- Oefeningen ---------- */
.oef{border:1px solid var(--line);border-radius:12px;padding:6px 18px 14px;margin:16px 0;background:var(--surface)}
.oef h4{margin-top:12px}
.oef ol{padding-left:22px}
.oef li{margin:6px 0}
details{margin-top:8px}
summary{cursor:pointer;color:var(--serb);font-weight:600;width:max-content;max-width:100%}
details[open] > summary{margin-bottom:6px}
.oef details ol,.oef details ul{background:var(--tint);border-radius:8px;padding:10px 12px 10px 34px}
.blank{display:inline-block;min-width:4.5em;border-bottom:1.5px solid var(--muted);height:1.1em;vertical-align:baseline}
.ansrow{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:4px}
input.ans{font-size:16px;padding:5px 9px;border:1.5px solid var(--line);border-radius:8px;background:var(--paper);width:min(100%,22em);font-weight:400;color:var(--ink)}
input.ans.inline{width:7.5em;margin:0 2px}
input.ans.ok{border-color:var(--good);background:color-mix(in srgb,var(--good) 10%,var(--surface))}
input.ans.bad{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 8%,var(--surface))}
.fb{font-size:14.5px;font-weight:600}
.fb.ok{color:var(--good)}.fb.bad{color:var(--bad)}.fb.near{color:var(--good)}
.oef-tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:10px}
.chars{display:inline-flex;gap:4px}
.chars button{min-width:32px;height:32px;border:1px solid var(--line);background:var(--paper);border-radius:7px;cursor:pointer;font-weight:600}
.chars button:hover{background:var(--tint)}
.score{font-size:14.5px;font-weight:600;color:var(--muted)}
.tutor-out{white-space:pre-wrap;background:var(--tint);border-radius:10px;padding:12px 14px;margin-top:10px;font-size:15.5px}

/* ---------- Oefenen ---------- */
.controls{display:flex;gap:12px;flex-wrap:wrap;align-items:end;margin-bottom:14px}
.stage{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px}
.card{border:2px solid var(--line);border-radius:14px;min-height:200px;display:grid;place-content:center;text-align:center;padding:24px;background:var(--paper);margin-bottom:14px}
.card .prompt{font-family:var(--font-display);font-weight:700;font-size:clamp(22px,4.4vw,32px);line-height:1.25;color:var(--ink)}
.card .prompt.s{color:var(--serb)}
.card .answer{margin-top:12px;font-size:20px;min-height:1.6em}
.card .meta{margin-top:10px;font-size:13px;color:var(--muted)}
.opts{display:grid;gap:8px;margin-bottom:12px}
.opt{text-align:left;padding:11px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;font-size:16px}
.opt:hover:not([disabled]){border-color:var(--serb)}
.opt.right{border-color:var(--good);background:color-mix(in srgb,var(--good) 12%,var(--surface))}
.opt.wrong{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 9%,var(--surface))}
.progress{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.done-box{text-align:center;padding:28px 12px}
.done-box .big{font-family:var(--font-display);font-weight:800;font-size:34px;color:var(--serb)}

/* ---------- Huiswerk ---------- */
.drop{border:2px dashed var(--line);border-radius:14px;padding:22px;text-align:center;background:var(--paper);cursor:pointer;display:block}
.drop.over{border-color:var(--serb);background:var(--tint)}
.drop strong{display:block}
.files{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:6px}
.files li{display:flex;gap:10px;align-items:center;justify-content:space-between;background:var(--tint);border-radius:8px;padding:6px 10px;font-size:14.5px;max-width:none}
.files button{border:0;background:transparent;color:var(--bad);cursor:pointer;font-weight:600}
.form{display:grid;gap:16px}
.formrow{display:flex;gap:14px;flex-wrap:wrap}
.status{display:flex;gap:12px;align-items:center;background:var(--tint);border-radius:10px;padding:12px 14px}
.spin{width:18px;height:18px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--serb);animation:spin 1s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion: reduce){.spin{animation-duration:3s}}
.err{border-left:4px solid var(--bad);background:var(--surface);padding:10px 14px;border-radius:0 10px 10px 0;color:var(--bad);font-weight:500}
.day{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:0}
.day > summary{list-style:none;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:14px 18px;width:auto;color:var(--ink)}
.day > summary::-webkit-details-marker{display:none}
.day .dn{font-family:var(--font-display);font-weight:800;font-size:22px;color:var(--serb);min-width:1.4em}
.day .dd{font-weight:600}
.day .df{display:block;font-size:14px;color:var(--muted);font-weight:400}
.day.today{border-color:var(--serb);box-shadow:0 0 0 1px var(--serb)}
.day .body{padding:0 18px 14px;display:grid;gap:10px}
.task{display:grid;grid-template-columns:auto 1fr;gap:12px;padding:12px 0 2px;border-top:1px solid var(--line)}
.task .ttitle{font-weight:600;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.task.done .ttitle > span:first-child{text-decoration:line-through;color:var(--muted)}
.task p{margin:4px 0 8px;font-size:15.5px}
.q{border-top:1px dashed var(--line);padding:10px 0}
.q:first-child{border-top:0}
.q .qp{font-weight:600;margin:0 0 6px}
.q .expl{font-size:14.5px;color:var(--muted);margin:6px 0 0}
.chat{display:grid;gap:10px;margin:10px 0}
.msg{border-radius:12px;padding:10px 14px;white-space:pre-wrap;font-size:15.5px;max-width:92%}
.msg.me{background:var(--navy);color:var(--on-navy);justify-self:end}
.msg.ai{background:var(--tint)}
.vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:6px 18px;margin:8px 0}
.vgrid div{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding:4px 0;font-size:15.5px}
.vgrid span:last-child{color:var(--muted);text-align:right}
body.no-ai .ai-only{display:none !important}
body:not(.no-ai) .ai-missing{display:none}

/* ---------- Naslag ---------- */
.wl-tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:8px 0}
.wl-tools input{flex:1;min-width:200px}
#wl-table td:last-child{color:var(--muted);font-size:14px;white-space:nowrap}
.wl-scroll{max-height:520px;overflow:auto}

/* ---------- Inloggen ---------- */
dialog{border:1px solid var(--line);border-radius:16px;padding:22px 24px;background:var(--surface);color:var(--ink);width:min(420px,calc(100vw - 32px))}
dialog::backdrop{background:rgba(10,14,28,.55)}
dialog h2{margin-top:0}
dialog form{display:grid;gap:14px}
dialog input{width:100%}
#acct-btn{justify-self:start}
@media (max-width: 860px){#acct-btn{font-size:13px;padding:5px 10px}}