:root{--bg:#f5f7fb;--card:#fff;--text:#111827;--muted:#64748b;--primary:#0f766e;--primary2:#147ec1;--danger:#dc2626;--ok:#16a34a;--border:#dbe3ef;--shadow:0 10px 30px rgba(15,23,42,.08);--radius:18px} [data-theme=dark]{--bg:#0f172a;--card:#111827;--text:#f8fafc;--muted:#94a3b8;--border:#334155;--shadow:0 10px 30px rgba(0,0,0,.25)} *{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--text);font-family:Tahoma,Arial,sans-serif;line-height:1.55} a{color:inherit;text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:280px;background:#171b22;color:white;position:fixed;inset-block:0;inset-inline-start:0;padding:20px 14px;z-index:20;transition:.25s}.brand{display:flex;gap:10px;align-items:center;font-weight:800;font-size:1.1rem;margin-bottom:20px}.brand.big{font-size:1.45rem;justify-content:center}.brand-mark{font-size:1.6rem}.nav{display:grid;gap:6px}.nav a{display:flex;gap:12px;align-items:center;padding:13px 14px;border-radius:14px;color:#e5e7eb}.nav a:hover{background:#0f766e}.main{margin-inline-start:280px;width:calc(100% - 280px);padding:22px}.topbar{display:flex;align-items:center;gap:16px;justify-content:space-between;margin-bottom:18px}.page-title{font-size:1.45rem;font-weight:800}.top-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.icon-btn,.chip,.btn{border:0;border-radius:12px;padding:10px 14px;cursor:pointer;font:inherit}.icon-btn{display:none;background:var(--card);box-shadow:var(--shadow)}.chip{background:var(--card);border:1px solid var(--border)}.btn{background:#e2e8f0;color:#0f172a;display:inline-flex;align-items:center;gap:6px;justify-content:center}.btn-primary{background:var(--primary2);color:white}.btn-danger,.danger .btn{background:var(--danger);color:white}.btn-light{background:var(--card);border:1px solid var(--border);color:var(--text)}.full{width:100%}.inline{display:inline}.disabled,[disabled]{opacity:.45;pointer-events:none}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:18px}.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.grid{display:grid;gap:18px}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.four{grid-template-columns:repeat(4,minmax(0,1fr))}.stats-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin-bottom:18px}.stat{background:linear-gradient(135deg,var(--card),rgba(20,126,193,.1));border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.stat b{font-size:2rem;display:block}.stat span{color:var(--muted)}.stat.danger{background:linear-gradient(135deg,var(--card),rgba(220,38,38,.09))}.form label{display:grid;gap:7px;font-weight:700}.form input,.form textarea,.form select,.filters input,.filters select{width:100%;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:12px;padding:11px 12px;font:inherit}.stack{display:grid;gap:14px}.checks{display:flex;gap:14px;flex-wrap:wrap}.checks label,.checkline{display:flex!important;gap:8px;align-items:center}.filters,.import-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:12px 0}.filters input{max-width:300px}.table-wrap{overflow:auto}table{width:100%;border-collapse:separate;border-spacing:0;min-width:760px}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:start;vertical-align:middle}th{background:rgba(15,118,110,.08);font-weight:800}.badge{display:inline-block;border-radius:999px;padding:4px 10px;background:#e2e8f0;color:#0f172a;font-size:.85rem}.badge.ok{background:#dcfce7;color:#166534}.badge.bad{background:#fee2e2;color:#991b1b}.alert{border-radius:14px;padding:13px 16px;margin:12px 0}.alert.success{background:#dcfce7;color:#166534}.alert.danger{background:#fee2e2;color:#991b1b}.muted{color:var(--muted)}.small{font-size:.85rem}.center{text-align:center}.thumb{width:54px;height:54px;object-fit:contain;background:white;border-radius:10px;border:1px solid var(--border)}.preview,.question-image{max-width:260px;max-height:240px;object-fit:contain;background:white;border:1px solid var(--border);border-radius:12px}.audio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}.audio-card{border:1px solid var(--border);border-radius:14px;padding:12px;display:grid;gap:8px}.audio-card audio{width:100%}.lang-tabs{display:flex;gap:8px;flex-wrap:wrap}.lang-tabs button{border:1px solid var(--border);background:var(--card);border-radius:12px;padding:9px 12px}.lang-tabs button.active{background:var(--primary2);color:white}.lang-panel{display:none}.lang-panel.active{display:grid;gap:12px}.guest-body{min-height:100vh;display:grid;place-items:center;padding:18px;background:radial-gradient(circle at top,#e0f2fe,transparent 40%),var(--bg)}.guest-card{width:min(480px,100%);background:var(--card);border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.login-hero{text-align:center;margin-bottom:24px}.exam-list{display:grid;gap:14px}.exam-card{display:flex;justify-content:space-between;gap:16px;align-items:center;border:1px solid var(--border);border-radius:16px;padding:16px}.exam-runtime{max-width:1050px;margin:auto}.exam-top{display:flex;align-items:center;justify-content:space-between}.timer{font-size:1.6rem;font-weight:900;color:var(--danger)}.exam-question{text-align:center}.exam-sign{max-width:260px;max-height:230px;object-fit:contain;background:white;border-radius:16px;border:1px solid var(--border);padding:8px}.exam-question h1{font-size:1.6rem}.answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:20px 0}.answer-btn{min-height:96px;border:2px solid var(--border);border-radius:18px;background:var(--card);color:var(--text);font-size:1.08rem;font-weight:800;cursor:pointer;padding:14px;display:flex;align-items:center;justify-content:center;gap:10px}.answer-btn:hover{border-color:var(--primary2)}.voice-mode .answer-btn{min-height:122px;font-size:1.25rem}.audio-big{display:flex;align-items:center;justify-content:center;gap:10px;margin:14px auto;background:var(--primary);color:white;border:0;border-radius:18px;padding:16px 24px;font-size:1.2rem;font-weight:900}.mini-audio{background:#e0f2fe;color:#075985;border-radius:999px;padding:8px}.instant{border-radius:16px;padding:14px;margin:12px 0;font-weight:800}.instant.ok{background:#dcfce7;color:#166534}.instant.bad{background:#fee2e2;color:#991b1b}.hidden{display:none}.exam-nav{display:flex;gap:12px;justify-content:center;align-items:center}.clean-list{list-style:none;padding:0}.mini-form{min-width:260px;margin-top:12px}.certificate{width:min(900px,100%);margin:40px auto;text-align:center;border:10px solid #0f766e;border-radius:28px;padding:70px 40px;background:#fff;color:#111827}.certificate h1{font-size:3rem}.cert-footer{margin-top:50px;font-weight:900}@media(max-width:980px){.sidebar{transform:translateX(110%)}[dir=ltr] .sidebar{transform:translateX(-110%)}.sidebar.open{transform:translateX(0)}.main{margin:0;width:100%;padding:14px}.icon-btn{display:block}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.two,.three,.four{grid-template-columns:1fr}.answers{grid-template-columns:1fr}.topbar{align-items:flex-start}.exam-card{align-items:stretch;flex-direction:column}}@media(max-width:560px){.stats-grid{grid-template-columns:1fr}.card{padding:16px}.top-actions{width:100%;justify-content:space-between}.exam-question h1{font-size:1.25rem}.answer-btn{min-height:86px}.guest-card{padding:20px}}@media print{.sidebar,.topbar,.btn{display:none!important}.main{margin:0;width:100%}.card{box-shadow:none;border:0}.certificate{border-color:#111}}.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;z-index:9999;padding:16px}.modal-backdrop.show{display:flex}.voice-modal{width:min(680px,100%);max-height:90vh;overflow:auto;background:var(--card);color:var(--text);border-radius:22px;box-shadow:0 20px 70px rgba(0,0,0,.3);padding:20px;border:1px solid var(--border)}.voice-modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.voice-modal select,.voice-modal input[type=range]{width:100%;margin:8px 0 14px}.voice-actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.alert.info{background:#ecfeff;color:#155e75;border-color:#a5f3fc}[data-theme=dark] .alert.info{background:#164e63;color:#cffafe;border-color:#155e75}
.category-count-box{border:1px solid var(--border);border-radius:16px;padding:14px;background:rgba(20,126,193,.04)}
.category-count-grid{display:grid;gap:10px;margin-top:10px}.cat-count-row{display:grid!important;grid-template-columns:1fr 110px;align-items:center;gap:12px;border:1px solid var(--border);border-radius:14px;padding:10px;background:var(--card)}.cat-count-row small{display:block;color:var(--muted);font-weight:400}.cat-count-row input{text-align:center;font-weight:800}.legacy-category-select{border:1px dashed var(--border);border-radius:14px;padding:12px}.language-warning{margin-top:12px;text-align:start}.exam-language-note{border:1px solid var(--border);background:rgba(250,204,21,.14);border-radius:14px;padding:10px 12px;margin:10px auto;max-width:760px;text-align:start}
@media(max-width:560px){.cat-count-row{grid-template-columns:1fr 90px}}
.exam-lang-switch{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:-8px}.exam-question h1[dir=ltr],.answer-btn[dir=ltr]{font-family:Arial,Helvetica,sans-serif;text-align:left}.exam-question h1[dir=rtl],.answer-btn[dir=rtl]{text-align:right}.answer-btn[dir=ltr]{justify-content:flex-start}.answer-btn[dir=rtl]{justify-content:flex-start}