/* LInSS Open Material Resources Portal */
@font-face{font-family:Nunito;font-weight:400;font-display:swap;src:url(../fonts/nunito-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:Nunito;font-weight:600;font-display:swap;src:url(../fonts/nunito-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:Nunito;font-weight:700;font-display:swap;src:url(../fonts/nunito-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:Nunito;font-weight:800;font-display:swap;src:url(../fonts/nunito-latin-800-normal.woff2) format('woff2')}
@font-face{font-family:Nunito;font-weight:400;font-display:swap;src:url(../fonts/nunito-latin-ext-400-normal.woff2) format('woff2');unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,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:Nunito;font-weight:700;font-display:swap;src:url(../fonts/nunito-latin-ext-700-normal.woff2) format('woff2');unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,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:Nunito;font-weight:800;font-display:swap;src:url(../fonts/nunito-latin-ext-800-normal.woff2) format('woff2');unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  --blue:#227c9e; --blue-d:#196581; --blue-dd:#114b61; --blue-50:#eaf4f8; --blue-100:#d3e8f0;
  --coral:#fe6d74; --coral-d:#e2525a; --coral-dd:#b93a42; --coral-50:#fff0f1; --coral-100:#ffdcde;
  --ink:#24303b; --muted:#5d6a77; --line:#e1e7ec; --bg:#f5f8fa; --card:#fff;
  --ok:#2e9e6a;
  --r:14px; --r-sm:10px;
  --shadow:0 1px 2px rgba(20,40,60,.06),0 4px 14px rgba(20,40,60,.06);
  --shadow-h:0 2px 4px rgba(20,40,60,.08),0 12px 28px rgba(20,40,60,.12);
  font-family:Nunito,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
button,input,select{font:inherit;color:inherit}
a{color:var(--blue-d)}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;border-radius:8px;z-index:99}
.skip:focus{left:8px}
:focus-visible{outline:3px solid rgba(34,124,158,.45);outline-offset:2px}
.small{font-size:.8rem;color:var(--muted);margin:.4rem 0 0}
.t-blue{color:var(--blue)} .t-coral{color:var(--coral)}

/* ---------- Top bar ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.brand img{height:44px;width:auto}
.brand-title{display:flex;flex-direction:column;line-height:1.15;padding-left:20px;border-left:1px solid var(--line)}
.brand-title strong{font-size:1.02rem;font-weight:800;color:var(--ink)}
.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--coral-d)}
.search{margin-left:auto;position:relative;flex:0 1 420px}
.search svg{position:absolute;left:14px;top:50%;width:18px;height:18px;transform:translateY(-50%);fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round}
.search input{width:100%;height:46px;border:1.5px solid var(--line);border-radius:999px;padding:0 44px 0 42px;background:var(--bg);transition:border-color .15s,background .15s}
.search input:focus{outline:none;border-color:var(--blue);background:#fff}
.search kbd{position:absolute;right:14px;top:50%;transform:translateY(-50%);font:600 .72rem/1 Nunito,sans-serif;border:1px solid var(--line);border-radius:6px;padding:3px 6px;color:var(--muted);background:#fff}

/* ---------- Hero / subject ---------- */
.hero{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);padding:34px 0 26px}
.hero h1{font-size:clamp(1.45rem,2.6vw,2.1rem);line-height:1.2;font-weight:800;margin:0 0 .4rem;max-width:860px;letter-spacing:-.01em}
.hero p{margin:0 0 22px;color:var(--muted);max-width:720px}
.subject-switch{display:flex;gap:12px;flex-wrap:wrap}
.subj{display:flex;align-items:center;gap:12px;min-width:200px;padding:12px 18px 12px 12px;border-radius:var(--r);border:2px solid var(--line);background:#fff;cursor:pointer;text-align:left;transition:border-color .15s,box-shadow .15s,transform .1s}
.subj:hover{box-shadow:var(--shadow)}
.subj:active{transform:scale(.99)}
.subj .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--bg);flex:none}
.subj .ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.subj b{display:block;font-size:1.05rem;font-weight:800}
.subj small{color:var(--muted);font-size:.8rem}
.subj[data-s="all"] .ic{color:var(--ink)}
.subj[data-s="science"] .ic{color:var(--blue);background:var(--blue-50)}
.subj[data-s="music"] .ic{color:var(--coral-d);background:var(--coral-50)}
.subj[aria-checked="true"]{border-color:var(--ink);box-shadow:var(--shadow)}
.subj[data-s="science"][aria-checked="true"]{border-color:var(--blue);background:var(--blue-50)}
.subj[data-s="science"][aria-checked="true"] .ic{background:var(--blue);color:#fff}
.subj[data-s="music"][aria-checked="true"]{border-color:var(--coral);background:var(--coral-50)}
.subj[data-s="music"][aria-checked="true"] .ic{background:var(--coral);color:#fff}
.subj[data-s="all"][aria-checked="true"] .ic{background:var(--ink);color:#fff}

/* ---------- Layout ---------- */
.layout{display:grid;grid-template-columns:272px 1fr;gap:28px;padding-top:8px;padding-bottom:56px;align-items:start}
.filters{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;position:sticky;top:92px;max-height:calc(100vh - 108px);overflow:auto}
.filters-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.filters-head h2{font-size:1rem;margin:0;font-weight:800}
.link-btn{background:none;border:0;color:var(--coral-d);font-weight:700;cursor:pointer;padding:4px;font-size:.88rem}
.link-btn:hover{text-decoration:underline}
.fgroup{border:0;margin:0;padding:14px 0;border-top:1px solid var(--line)}
.fgroup:first-of-type{border-top:0}
.fgroup legend{font-weight:800;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:0;margin-bottom:10px;float:left;width:100%}
.fgroup legend abbr{text-decoration:none;color:var(--blue)}
.fgroup>*:not(legend){clear:both}
.hint{font-size:.8rem;color:var(--muted);margin:.5rem 0 0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font-size:.88rem;font-weight:700;color:var(--ink);cursor:pointer;transition:all .12s;line-height:1.2}
.chip:hover{border-color:var(--blue);color:var(--blue-d)}
.chip .n{font-weight:600;color:var(--muted);font-size:.78rem}
.chip svg{width:14px;height:14px;display:none;fill:none;stroke:currentColor;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.chip[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 2px 6px rgba(34,124,158,.3)}
.chip[aria-pressed="true"] svg{display:block}
.chip[aria-pressed="true"] .n{color:rgba(255,255,255,.8)}
.chip[disabled]{opacity:.4;cursor:not-allowed}
.chips-cefr .chip{min-width:58px;justify-content:center}
select{width:100%;height:42px;border:1.5px solid var(--line);border-radius:var(--r-sm);background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235d6a77' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 12px center;padding:0 34px 0 12px;appearance:none;cursor:pointer;font-weight:600}
select:focus{outline:none;border-color:var(--blue)}
select.is-set{border-color:var(--blue);background-color:var(--blue-50);color:var(--blue-dd)}
select:disabled{opacity:.55;cursor:not-allowed}

/* ---------- Results ---------- */
.results-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.results-head h2{margin:0;font-size:1.35rem;font-weight:800;line-height:1.25}
.res-count{margin:.15rem 0 0;color:var(--muted);font-weight:600}
.res-count b{color:var(--ink)}
.results-tools{display:flex;gap:10px;align-items:center}
.sort{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.85rem;color:var(--muted)}
.sort select{width:auto;height:38px;color:var(--ink)}
.active-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;min-height:4px}
.af{display:inline-flex;align-items:center;gap:6px;background:var(--blue-50);color:var(--blue-dd);border:1px solid var(--blue-100);border-radius:999px;padding:4px 6px 4px 12px;font-size:.82rem;font-weight:700}
.af button{border:0;background:rgba(17,75,97,.1);width:20px;height:20px;border-radius:50%;cursor:pointer;display:grid;place-items:center;padding:0;color:inherit}
.af button:hover{background:rgba(17,75,97,.2)}
.af button svg{width:10px;height:10px;stroke:currentColor;stroke-width:3;fill:none}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.card .thumb{position:relative;aspect-ratio:16/10;background:var(--bg);overflow:hidden;cursor:pointer;border:0;padding:0;width:100%;display:block}
.card .thumb img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .3s}
.card:hover .thumb img{transform:scale(1.03)}
.card .thumb .ph{width:100%;height:100%;display:grid;place-items:center;color:var(--muted)}
.tbadge{position:absolute;left:10px;top:10px;font-size:.72rem;font-weight:800;letter-spacing:.03em;padding:4px 9px;border-radius:999px;background:var(--blue);color:#fff;box-shadow:0 1px 4px rgba(0,0,0,.15)}
.tbadge.mat{background:var(--coral)}
.cbadge{position:absolute;right:10px;top:10px;font-size:.75rem;font-weight:800;padding:4px 8px;border-radius:8px;background:rgba(255,255,255,.95);color:var(--ink)}
.card .body{padding:14px 16px 6px;flex:1;display:flex;flex-direction:column;gap:6px}
.card .subj-line{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.card .subj-line.science{color:var(--blue)} .card .subj-line.music{color:var(--coral-d)}
.card h3{margin:0;font-size:1.02rem;line-height:1.3;font-weight:800}
.card h3 button{all:unset;cursor:pointer}
.card h3 button:hover{color:var(--blue-d);text-decoration:underline;text-underline-offset:3px}
.card h3 button:focus-visible{outline:3px solid rgba(34,124,158,.45);outline-offset:2px;border-radius:4px}
.card .focus{font-size:.86rem;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.tag{font-size:.74rem;font-weight:700;padding:3px 8px;border-radius:6px;background:var(--bg);color:var(--ink);border:1px solid var(--line)}
.tag.cefr{background:#fff;border-color:var(--blue-100);color:var(--blue-dd)}
.card .meta{display:flex;gap:14px;padding:8px 16px;font-size:.8rem;color:var(--muted);font-weight:600}
.card .meta span{display:inline-flex;align-items:center;gap:5px}
.card .meta svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card .actions{display:flex;gap:8px;padding:10px 16px 16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:10px;border:1.5px solid transparent;padding:9px 14px;font-weight:800;font-size:.88rem;cursor:pointer;text-decoration:none;transition:background .12s,border-color .12s,color .12s,transform .08s;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:var(--coral-d)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue-d)}
.card .actions .btn{flex:1}
.more{display:flex;margin:24px auto 0}
.empty{text-align:center;padding:56px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--r)}
.empty svg{width:48px;height:48px;fill:none;stroke:var(--muted);stroke-width:1.6;stroke-linecap:round}
.empty h3{margin:.6rem 0 .2rem}
.empty p{color:var(--muted);margin:0 0 1rem}
.badge-n{background:var(--coral);color:#fff;border-radius:999px;font-size:.72rem;padding:1px 7px}

/* ---------- Detail dialog ---------- */
dialog{border:0;padding:0;border-radius:18px;width:min(940px,calc(100vw - 32px));max-height:calc(100vh - 40px);box-shadow:0 30px 80px rgba(0,0,0,.3);color:var(--ink)}
dialog::backdrop{background:rgba(17,40,55,.55);backdrop-filter:blur(2px)}
.d-inner{display:grid;grid-template-columns:320px 1fr;min-height:420px}
.d-side{background:var(--bg);padding:22px;border-right:1px solid var(--line)}
.d-side .preview{border-radius:12px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.d-side .preview img{width:100%}
.d-side .btns{display:grid;gap:8px;margin-top:16px}
.d-side .btns .btn{width:100%;padding:11px}
.d-stats{display:flex;justify-content:space-around;margin-top:16px;text-align:center}
.d-stats b{display:block;font-size:1.25rem;font-weight:800}
.d-stats span{font-size:.75rem;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.d-main{padding:24px 28px 28px;overflow:auto;max-height:calc(100vh - 40px)}
.d-close{position:absolute;right:14px;top:14px;width:38px;height:38px;border-radius:50%;border:0;background:#fff;box-shadow:var(--shadow);cursor:pointer;display:grid;place-items:center;z-index:2}
.d-close svg{width:16px;height:16px;stroke:var(--ink);stroke-width:2.5;fill:none}
.d-main h2{margin:.35rem 0 .3rem;font-size:1.45rem;line-height:1.25;font-weight:800;padding-right:36px}
.d-kicker{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.d-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:18px 0}
.fact{background:var(--bg);border-radius:10px;padding:10px 12px}
.fact span{display:block;font-size:.72rem;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.fact b{font-weight:700;font-size:.92rem}
.d-sec{margin-top:18px}
.d-sec h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 6px;font-weight:800}
.d-sec p{margin:0}
.vocab{display:flex;flex-wrap:wrap;gap:6px}
.vocab span{background:var(--coral-50);color:var(--coral-dd);border-radius:6px;padding:2px 8px;font-size:.84rem;font-weight:700}
.fb{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.fbb{display:flex;align-items:center;gap:10px;border:1.5px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;cursor:pointer;text-align:left;font-weight:700;font-size:.9rem;transition:all .12s}
.fbb:hover{border-color:var(--blue)}
.fbb .ico{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:var(--bg);flex:none}
.fbb .ico svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.fbb .c{margin-left:auto;font-weight:800;color:var(--muted);font-size:.85rem}
.fbb[aria-pressed="true"]{border-color:var(--blue);background:var(--blue-50);color:var(--blue-dd)}
.fbb[aria-pressed="true"] .ico{background:var(--blue);color:#fff}
.fbb[aria-pressed="true"] .c{color:var(--blue-dd)}
.fbb[data-t="improvable"][aria-pressed="true"]{border-color:var(--coral);background:var(--coral-50);color:var(--coral-dd)}
.fbb[data-t="improvable"][aria-pressed="true"] .ico{background:var(--coral)}
.fbb[data-t="improvable"][aria-pressed="true"] .c{color:var(--coral-dd)}
.related{display:grid;gap:8px}
.rel{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:8px;background:#fff;cursor:pointer;text-align:left;width:100%}
.rel:hover{border-color:var(--blue)}
.rel img{width:64px;height:44px;object-fit:cover;object-position:top;border-radius:6px;border:1px solid var(--line);flex:none}
.rel b{display:block;font-size:.9rem}
.rel small{color:var(--muted);font-weight:600}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:12px 18px 12px 14px;border-radius:12px;font-weight:700;display:flex;align-items:center;gap:10px;opacity:0;pointer-events:none;transition:all .25s;z-index:1000;box-shadow:0 10px 30px rgba(0,0,0,.25);max-width:calc(100vw - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast .tick{width:24px;height:24px;border-radius:50%;background:var(--ok);display:grid;place-items:center;flex:none}
.toast .tick svg{width:14px;height:14px;stroke:#fff;stroke-width:3;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Footer ---------- */
.footer{background:#fff;border-top:1px solid var(--line);padding:30px 0}
.footer-inner{display:grid;grid-template-columns:auto 1.4fr auto;gap:32px;align-items:start}
.footer-logo{height:34px;width:auto}
.eu img{height:40px;width:auto}
.footer-links{display:flex;flex-direction:column;gap:6px;font-weight:700}
.footer-links a{text-decoration:none}
.footer-links a:hover{text-decoration:underline}

.only-mobile{display:none}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .brand-title{display:none}
}
@media (max-width:860px){
  .layout{grid-template-columns:1fr}
  .filters{position:fixed;inset:auto 0 0 0;top:auto;max-height:82vh;border-radius:18px 18px 0 0;z-index:50;transform:translateY(105%);transition:transform .25s;box-shadow:0 -10px 40px rgba(0,0,0,.2)}
  .filters.open{transform:none}
  .only-mobile{display:inline-flex}
  #applyMobile{width:100%;margin-top:8px}
  .d-inner{grid-template-columns:1fr}
  .d-side{border-right:0;border-bottom:1px solid var(--line)}
  .d-side .preview{max-width:280px;margin:0 auto}
  .footer-inner{grid-template-columns:1fr}
}
@media (max-width:600px){
  .wrap{padding:0 16px}
  .topbar-inner{flex-wrap:wrap;gap:10px;padding:10px 0;min-height:0}
  .brand img{height:34px}
  .search{flex:1 1 100%}
  .search kbd{display:none}
  .hero{padding:22px 0 18px}
  .subj{min-width:0;flex:1 1 calc(50% - 6px);padding:10px}
  .subj[data-s="all"]{flex-basis:100%}
  .subj .ic{width:36px;height:36px}
  .grid{grid-template-columns:1fr}
  .fb{grid-template-columns:1fr}
  .d-main{padding:20px}
  .sort span{display:none}
}
@media print{ .topbar,.filters,.footer,.hero{display:none} }
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}