:root{--bg:#f2efe7;--paper:#fffdf8;--ink:#20231f;--muted:#70756f;--line:#dcd7cb;--accent:#244f3d;--soft:#e5eee9;--success:#24613f;--successSoft:#e5f3e9;--danger:#982f2f;--dangerSoft:#f9e7e7;--gold:#876300;--goldSoft:#fff1bf;--orange:#7b4000;--orangeSoft:#f5d7aa;--yellow:#fff0a8;--shadow:0 15px 45px rgba(25,30,27,.14)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{text-decoration:none;color:inherit}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}
header{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px max(14px,env(safe-area-inset-left));border-bottom:1px solid var(--line);background:rgba(242,239,231,.97);backdrop-filter:blur(12px)}.head-left,.head-actions{display:flex;align-items:center;gap:8px}.brand{display:flex;align-items:center;gap:9px;font-weight:850;letter-spacing:-.02em}.mark{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:var(--accent);color:#fff;font-family:Georgia,serif;font-size:13px;font-weight:900}.btn{border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:10px;padding:9px 12px;font-weight:760;display:inline-flex;align-items:center;justify-content:center;gap:7px}.btn:hover{border-color:#b9c6bf}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.danger{border-color:#d5a2a2;color:#792626;background:#fff7f7}.btn:disabled{opacity:.45;cursor:not-allowed}.smallbtn{padding:7px 9px;font-size:12px}
main{width:min(1040px,calc(100% - 24px));margin:25px auto 110px}.hero{margin:10px 0 18px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:850;margin-bottom:7px}h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(35px,6vw,54px);line-height:1.04;margin:0 0 8px;letter-spacing:-.035em}h2,h3{font-family:Georgia,"Times New Roman",serif}.sub{color:var(--muted);line-height:1.55;max-width:880px}
.toolbar{position:sticky;top:58px;z-index:25;background:rgba(242,239,231,.97);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:13px;padding:10px;margin:15px 0;display:flex;gap:8px;align-items:center;flex-wrap:wrap;box-shadow:0 5px 18px rgba(25,30,27,.05)}.toolbar select,.toolbar input[type=search]{border:1px solid var(--line);background:var(--paper);border-radius:9px;padding:8px 10px;color:var(--ink)}.toolbar input[type=search]{min-width:210px;flex:1}.stats{margin-left:auto;font-size:12px;color:var(--muted);font-weight:750}.bandrow{display:flex;gap:6px;flex-wrap:wrap}.chip{border:1px solid var(--line);background:var(--paper);color:var(--muted);border-radius:999px;padding:6px 9px;font-size:11px;font-weight:850}.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:17px;padding:clamp(17px,3vw,27px);margin-bottom:14px;box-shadow:0 3px 15px rgba(25,30,27,.04);scroll-margin-top:135px}.card.answered{border-color:#c9d7cf}.card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px}.master{font-weight:900}.meta{font-size:11px;color:var(--muted);line-height:1.5}.badges{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.badge{font-size:10px;font-weight:900;border-radius:999px;padding:5px 8px;background:var(--soft);color:var(--accent)}.badge.freq5{background:var(--goldSoft);color:var(--gold)}.badge.freq6{background:var(--orangeSoft);color:var(--orange)}.badge.warn{background:#f5e7d5;color:#80500e}
.label{font-size:10px;text-transform:uppercase;letter-spacing:.11em;color:var(--muted);font-weight:850;margin:15px 0 7px}.passage,.transcript{font-family:Georgia,"Times New Roman",serif;font-size:clamp(18px,2.2vw,22px);line-height:1.7;white-space:pre-wrap}.question{font-size:17px;font-weight:850;line-height:1.5;white-space:pre-wrap}.source-note{font-size:11px;color:#765d28;background:#faf2df;border:1px solid #ead8ad;border-radius:9px;padding:9px 10px;line-height:1.45;margin:9px 0}.image{display:block;max-width:min(100%,620px);max-height:390px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff;margin:9px 0}.audio{width:100%;max-width:640px;margin:4px 0 3px}
.options{display:grid;gap:8px;margin-top:10px}.option{width:100%;display:grid;grid-template-columns:42px 1fr;gap:10px;align-items:start;text-align:left;padding:10px;border:1px solid var(--line);border-radius:11px;background:#faf8f3;transition:.12s;color:var(--ink)}.option:hover{border-color:#b9c6bf;background:#f7faf8}.option-letter{width:36px;height:36px;border-radius:9px;background:#ece8df;display:grid;place-items:center;font-weight:900;color:#4a4d49;align-self:center}.option-text{line-height:1.52;padding:6px 2px}.option.correct{border-color:#8fc0a3;background:var(--successSoft)}.option.correct .option-letter{background:var(--success);color:#fff}.option.wrong{border-color:#d9a0a0;background:var(--dangerSoft)}.option.wrong .option-letter{background:var(--danger);color:#fff}
.feedback{margin-top:13px;border-radius:11px;padding:12px 13px;border:1px solid var(--line);line-height:1.5}.feedback.correct{background:var(--successSoft);border-color:#b9d8c4;color:#18472d}.feedback.wrong{background:var(--dangerSoft);border-color:#e2b9b9;color:#742020}.feedback.revealed{background:#f6f2e7}.feedback-title{font-weight:900;margin-bottom:6px}.answer-line{font-weight:800;margin-bottom:6px}.why{font-size:13px;color:var(--ink)}.why-origin{display:inline-block;margin-top:7px;font-size:10px;font-weight:850;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.transcript-box{margin-top:10px;border:1px dashed #cfc9bb;border-radius:11px;padding:11px;background:#fbf8f0}.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin:20px 0}.pager .count{font-size:12px;color:var(--muted);min-width:120px;text-align:center}.empty{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:28px;text-align:center;color:var(--muted)}
.word{border-radius:5px;padding:1px;cursor:pointer;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px}.word:hover,.word:focus{background:var(--soft);outline:none;text-decoration-color:#91aa9f}.word.active{background:#cfe0d7}.word.saved{background:var(--yellow);text-decoration-color:#d4ad2d}
.word-popup{position:fixed;left:50%;bottom:max(18px,env(safe-area-inset-bottom));z-index:80;width:min(520px,calc(100% - 24px));transform:translate(-50%,calc(100% + 60px));opacity:0;pointer-events:none;transition:.18s;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow)}.word-popup.open{transform:translate(-50%,0);opacity:1;pointer-events:auto}.popup-top{display:flex;justify-content:space-between;gap:16px}.popup-fr{font-family:Georgia,serif;font-size:27px;font-weight:750}.popup-en{font-size:20px;margin-top:7px;color:var(--accent);font-weight:850}.popup-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:15px}.popup-close{border:0;background:transparent;color:var(--muted);font-size:25px;padding:0}
.footer{text-align:center;color:var(--muted);font-size:12px;margin-top:35px}.footer strong{color:var(--ink)}
/* Exam */.exam-start,.result-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:clamp(20px,4vw,34px);box-shadow:0 5px 22px rgba(25,30,27,.06)}.exam-start h2,.result-card h2{font-size:34px;margin:0 0 8px}.exam-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.fact{background:#f7f4ed;border:1px solid var(--line);border-radius:12px;padding:13px}.fact strong{display:block;font-size:21px}.fact span{font-size:11px;color:var(--muted);font-weight:750}.exam-shell{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:14px}.exam-main{min-width:0}.exam-side{position:sticky;top:74px;align-self:start;background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:12px}.exam-timer{font-variant-numeric:tabular-nums;font-size:28px;font-weight:900;color:var(--accent);margin-bottom:8px}.exam-timer.urgent{color:var(--danger)}.qgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:5px}.qnav{border:1px solid var(--line);background:#f8f5ef;border-radius:7px;padding:7px 2px;font-size:11px;font-weight:850}.qnav.answered{background:var(--soft);border-color:#abc2b6;color:var(--accent)}.qnav.current{outline:2px solid var(--accent);outline-offset:1px}.exam-card{background:var(--paper);border:1px solid var(--line);border-radius:17px;padding:clamp(18px,4vw,30px)}.exam-qhead{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px}.exam-number{font-weight:900;font-size:18px}.points{font-size:11px;font-weight:850;color:var(--muted)}.exam-actions{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-top:15px}.exam-play{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.play-status{font-size:12px;color:var(--muted)}.review-correct{border-left:5px solid var(--success)}.review-wrong{border-left:5px solid var(--danger)}.review-unanswered{border-left:5px solid #aaa}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.result-stat{border:1px solid var(--line);border-radius:12px;padding:13px;background:#faf8f2}.result-stat strong{display:block;font-size:25px}.result-stat span{font-size:11px;color:var(--muted);font-weight:800}.levelbox{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}.level{border-radius:14px;padding:15px;background:var(--soft);border:1px solid #bcd0c5}.level strong{display:block;font-size:30px;color:var(--accent)}.history{margin-top:24px}.history h3{font-size:22px;margin-bottom:10px}.history-row{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:center;border-top:1px solid var(--line);padding:10px 0}.history-row:first-of-type{border-top:0}.history-meta{font-size:11px;color:var(--muted)}
.modal-back{position:fixed;inset:0;z-index:100;background:rgba(20,24,21,.45);display:grid;place-items:center;padding:18px}.modal{width:min(470px,100%);background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}.modal h3{font-size:26px;margin:0 0 8px}.modal p{color:var(--muted);line-height:1.5}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
@media(max-width:780px){.brand span{display:none}.wide{display:none}.stats{width:100%;margin-left:0}.toolbar{top:57px}.exam-shell{display:block}.exam-side{position:static;margin-bottom:12px}.qgrid{grid-template-columns:repeat(8,1fr)}.exam-facts,.result-grid{grid-template-columns:1fr 1fr}.levelbox{grid-template-columns:1fr}.history-row{grid-template-columns:1fr auto}.history-row .history-score{display:none}}
@media(max-width:480px){.qgrid{grid-template-columns:repeat(6,1fr)}.exam-facts,.result-grid{grid-template-columns:1fr}.head-actions .desktop{display:none}}