:root{
  --bg:#f6f7fb;--surface:#fff;--ink:#172033;--muted:#667085;--primary:#1d3b6d;--primary2:#244b8a;--gold:#b0792b;--green:#1f7a4d;--red:#b42318;--border:#e2e6ef;--shadow:0 12px 30px rgba(23,32,51,.08);--radius:18px
}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.5}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:.75rem;padding:.8rem 1rem;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:.7rem;color:var(--ink);text-decoration:none}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:14px;background:var(--primary);color:#fff;font-weight:800}.brand strong{display:block}.brand small{display:block;color:var(--muted);font-size:.8rem}.icon-btn,.install-btn,.primary-btn,.secondary-btn,.ghost-btn{border:0;border-radius:999px;padding:.75rem 1rem;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:.35rem}.icon-btn{background:#eef2f8;color:var(--ink);font-size:1.15rem}.install-btn,.primary-btn{background:var(--primary);color:#fff}.primary-btn:hover{background:var(--primary2)}.secondary-btn{background:#eef2f8;color:var(--primary)}.ghost-btn{background:#fff;color:var(--primary);border:1px solid var(--border)}.content{width:100%;max-width:1160px;margin:0 auto;padding:1rem;flex:1}.hero{background:linear-gradient(135deg,#172033,#214675);color:#fff;border-radius:28px;padding:2rem;box-shadow:var(--shadow);overflow:hidden}.hero h1{font-size:clamp(2rem,5vw,4rem);line-height:1.05;margin:.3rem 0}.hero p{max-width:760px;color:#e7edf7}.hero-actions,.actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}.section-title{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:1.5rem 0 .8rem}.section-title h2{margin:0}.grid{display:grid;gap:1rem}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card,.exam-item,.case-item,.notice{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}.notice{background:#fff9ed;border-color:#efd7b6}.muted{color:var(--muted)}.meta{font-size:.85rem;color:var(--muted)}.badge{border-radius:999px;background:#eef2f8;color:var(--primary);padding:.35rem .65rem;font-weight:700;font-size:.8rem;display:inline-flex}.badge.green{background:#e9f7ef;color:var(--green)}.badge.gold{background:#fff4df;color:var(--gold)}.badge.warn{background:#fff4df;color:#8a5a00}.tag-row{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.6rem}.list{display:grid;gap:1rem}.kpi strong{font-size:2rem;display:block}.drawer{position:fixed;z-index:40;inset:0 auto 0 0;width:min(330px,86vw);background:#fff;border-right:1px solid var(--border);box-shadow:var(--shadow);transform:translateX(-105%);transition:.2s;display:flex;flex-direction:column;padding:1rem}.drawer.open{transform:translateX(0)}.drawer nav{display:grid;gap:.35rem}.drawer a{color:var(--ink);text-decoration:none;padding:.9rem 1rem;border-radius:14px;font-weight:700}.drawer a:hover{background:#eef2f8}.drawer-note{margin-top:auto;color:var(--muted);font-size:.9rem;padding:1rem}.backdrop{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:30;display:none}.backdrop.open{display:block}.footer{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem 1rem;color:var(--muted);font-size:.85rem;padding:1rem;border-top:1px solid var(--border)}.pdf-frame{width:100%;height:70vh;border:1px solid var(--border);border-radius:16px;background:#fff}.answer-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:.55rem}.answer-row{background:#fff;border:1px solid var(--border);border-radius:14px;padding:.5rem;display:grid;gap:.4rem;text-align:center}.answer-row strong{font-size:.85rem}.answer-options{display:flex;justify-content:center;gap:.25rem}.answer-options label{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#eef2f8;cursor:pointer;font-weight:800}.answer-options input{display:none}.answer-options input:checked+span,.answer-options label:has(input:checked){background:var(--primary);color:#fff}.toolbar{display:flex;gap:.5rem;flex-wrap:wrap;margin:1rem 0}.source-list a{word-break:break-word}.syllabus-group h3{margin-bottom:.25rem}@media(max-width:820px){.grid.two,.grid.three{grid-template-columns:1fr}.answer-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.hero{padding:1.4rem}.content{padding:.75rem}.topbar{gap:.5rem}.brand small{display:none}}@media(max-width:440px){.answer-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.ghost-btn,.primary-btn,.secondary-btn{width:100%}.pdf-frame{height:62vh}}


/* v0.3.0 – интерактивни тестове от ZIP архива */
.quiz-top{display:flex;justify-content:space-between;align-items:center;gap:.8rem;flex-wrap:wrap;margin-bottom:1rem}
.progress-wrap{height:10px;background:#e5eaf3;border-radius:999px;overflow:hidden;margin:.75rem 0}
.progress-bar{height:100%;background:linear-gradient(90deg,var(--gold),var(--primary));width:0}
.question-card h2{font-size:1.35rem;line-height:1.35;margin:.2rem 0 1rem}
.options{display:grid;gap:.7rem}
.option-btn{width:100%;border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:16px;padding:1rem;text-align:left;display:flex;gap:.75rem;align-items:flex-start;cursor:pointer}
.option-btn:hover{border-color:#b8c5da;background:#fbfcff}
.option-btn.selected{border-color:var(--primary);background:#eef4ff}
.option-btn.correct{border-color:#8fd2aa;background:#edf9f1}
.option-btn.wrong{border-color:#f0a8a0;background:#fff3f2}
.option-letter{min-width:1.8rem;height:1.8rem;border-radius:50%;display:grid;place-items:center;background:#eaf0fb;color:var(--primary);font-weight:900}
.feedback{border:1px dashed #cbd5e1;border-radius:16px;padding:.85rem;margin-top:1rem;background:#f8fafc}
.feedback.correct{background:#effaf3;border-color:#9bd6ae}
.feedback.wrong{background:#fff3f2;border-color:#f0aaa4}
.question-nav{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:.35rem;margin:1rem 0}
.question-pill{border:1px solid var(--border);border-radius:999px;background:#fff;min-height:2.15rem;font-weight:800;cursor:pointer}
.question-pill.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.question-pill.answered{background:#eaf8ef;border-color:#aad7b8}
.quiz-actions{display:flex;gap:.55rem;flex-wrap:wrap;margin-top:1rem}
.result-list{display:grid;gap:.5rem;margin-top:1rem}
.result-item{border:1px solid var(--border);border-radius:14px;padding:.7rem;background:#fff;display:flex;justify-content:space-between;gap:.5rem}
.result-item.good{border-color:#9bd6ae;background:#effaf3}
.result-item.bad{border-color:#f0aaa4;background:#fff3f2}
@media(max-width:820px){.question-nav{grid-template-columns:repeat(7,minmax(0,1fr))}}
@media(max-width:520px){.question-nav{grid-template-columns:repeat(5,minmax(0,1fr))}.option-btn{padding:.85rem}}


/* v0.4.0 – официални сканирани тестове от последните сесии */
.official-scan-frame{min-height:78vh;background:#fff}
@media(max-width:820px){.official-scan-frame{min-height:68vh}}