.bottom-nav{grid-template-columns:repeat(5,minmax(0,1fr))}
.subject-group-title{font-size:12px;font-weight:600;color:var(--muted);margin:16px 4px 8px}
.quiz-screen{padding:22px 22px 110px;max-width:680px;margin:auto;color:var(--text,#243d38)}
.quiz-top{margin:-22px -22px 28px}.quiz-top>strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.quiz-eyebrow{font-size:12px;letter-spacing:1px;color:#6a8576}.quiz-intro{padding:16px 0 26px}.quiz-intro h1,.quiz-subject-hero h1{font-size:27px;line-height:1.45;margin:12px 0;color:inherit}.quiz-intro p,.quiz-subject-hero p{font-size:14px;line-height:1.8;opacity:.66}
.quiz-pack-card{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:var(--surface,#fff);border:1px solid #dce6de;border-radius:22px;padding:22px 18px;margin:14px 0;color:inherit;box-shadow:0 6px 24px #243c2710}.quiz-pack-icon{display:grid;place-items:center;flex:none;width:33px;height:33px;border-radius:50%;background:var(--accent);color:var(--paper-solid)}.quiz-pack-icon svg{display:block;width:22px;height:22px}.quiz-pack-card>span:nth-child(2){flex:1;min-width:0}.quiz-pack-card strong{display:block;font-size:17px;margin-bottom:8px}.quiz-pack-card small{display:block;font-size:12px;font-weight:400;line-height:1.7;opacity:.65}.quiz-pack-card>b{font-size:22px;font-weight:400}
.quiz-subject-hero{padding:3px 0 12px}.quiz-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid #dde7dd;background:#ffffff70;border-radius:20px;padding:20px 6px;margin:12px 0 22px;text-align:center}.quiz-stat-grid strong{display:block;font-size:24px;font-weight:550}.quiz-stat-grid span{font-size:11px;opacity:.6;display:block;margin-top:6px}
.quiz-setup{border:1px solid #dce6de;background:var(--surface,#ffffffaa);border-radius:24px;padding:22px 18px;margin:24px 0 16px}.quiz-section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.quiz-section-title h2,.quiz-history h2,.quiz-result-list h2{font-size:17px;margin:0}.quiz-section-title small{font-size:11px;opacity:.55}.quiz-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 12px;margin-bottom:22px}.quiz-form-grid label{display:flex;flex-direction:column;font-size:12px;gap:8px;color:inherit}.quiz-form-grid select{width:100%;min-width:0;max-width:100%;min-height:46px;padding:8px 10px;border:1px solid #d7e3d8;border-radius:12px;background:var(--surface,#f7faf6);color:inherit;font-size:13px}.quiz-setup .primary{width:100%;min-height:50px}
.quiz-shortcuts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:26px}.quiz-shortcut{display:flex;align-items:center;gap:14px;padding:20px;border:1px solid #dae5db;border-radius:18px;background:#ffffff70;color:inherit;text-align:left}.quiz-shortcut b{font-size:25px;font-weight:500}.quiz-shortcut span{font-size:13px}.quiz-history{margin:30px 0}.quiz-history>div{display:flex;justify-content:space-between;gap:10px;padding:17px 0;border-bottom:1px solid #dce4dc;font-size:12px}.quiz-footnote{display:block;font-size:11px;line-height:1.9;opacity:.6;margin-top:18px}.quiz-empty{padding:40px 15px;text-align:center}.quiz-empty h2{font-size:20px}.quiz-empty p{font-size:14px;line-height:1.8;opacity:.65}
.quiz-question-meta{display:flex;align-items:center;gap:10px;font-size:12px;margin:0 0 14px}.quiz-question-meta>span{flex:1;color:#72806e}.quiz-question-meta strong{font-weight:500}.quiz-bookmark{background:transparent;border:0;font-size:12px;min-height:40px;color:#6b7f54;padding:0 0 0 10px}.quiz-progress-track{height:4px;border-radius:4px;background:#dce7db;overflow:hidden;margin-bottom:26px}.quiz-progress-track i{display:block;height:100%;background:#6a8a64;transition:width .2s}.quiz-chapter{font-size:11px;opacity:.6;line-height:1.7;margin-bottom:12px}.quiz-stem{font-size:21px;font-weight:650;line-height:1.8;margin:0 0 24px;white-space:pre-wrap;overflow-wrap:anywhere}
.quiz-options{display:grid;gap:12px}.quiz-option{display:flex;align-items:flex-start;gap:13px;width:100%;min-height:60px;text-align:left;padding:16px 15px;background:var(--surface,#fff);border:1.5px solid #dce4dc;border-radius:17px;color:inherit;line-height:1.75;font-size:15px}.quiz-option>span:nth-child(2){flex:1;min-width:0;overflow-wrap:anywhere}.quiz-option-key{border:1px solid #cbd6cb;border-radius:9px;min-width:28px;height:28px;text-align:center;font-size:13px;line-height:26px;margin-top:1px}.quiz-option.selected{border-color:#668968;background:#edf3e8}.quiz-option.selected .quiz-option-key{background:#668968;color:white;border-color:#668968}.quiz-option.correct{border-color:#6b9671;background:#edf5e9}.quiz-option.incorrect{border-color:#c68976;background:#fbefea}.quiz-option:disabled{opacity:1;cursor:default}.quiz-option>b{font-size:20px}.quiz-option:focus-visible,.quiz-answer-card button:focus-visible{outline:3px solid #8eaa79;outline-offset:3px}
.quiz-option.incorrect .quiz-option-key{background:#b67e68;border-color:#b67e68;color:white}.quiz-option.correct .quiz-option-key{background:#668968;border-color:#668968;color:white}
.quiz-hint{font-size:12px;line-height:1.8;opacity:.6;margin:18px 0}.quiz-feedback{padding:20px;background:#edf4e8;border:1px solid #c9ddc7;border-radius:18px;margin-top:22px;line-height:1.9;font-size:13px}.quiz-feedback.is-incorrect{background:#fbf2eb;border-color:#e5d2bd}.quiz-feedback>strong{font-size:17px}.quiz-feedback h2{font-size:13px;margin:14px 0 6px}.quiz-feedback p{margin:6px 0;white-space:pre-wrap;overflow-wrap:anywhere}.quiz-controls{display:grid;grid-template-columns:1fr 1.6fr;gap:12px;margin:24px 0}.quiz-controls button{min-height:49px;border-radius:15px}.quiz-source{font-size:11px;opacity:.65;margin-top:20px;line-height:1.8}.quiz-source p{overflow-wrap:anywhere}.quiz-source summary,.quiz-answer-card summary{cursor:pointer;padding:10px 0}
.quiz-answer-card{margin:20px 0;font-size:13px}.quiz-answer-card>div{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding-top:14px}.quiz-answer-card button{border:1px solid #d4dfd3;border-radius:11px;min-height:42px;background:#ffffff90;color:inherit}.quiz-answer-card button.current{outline:2px solid #7b9772;outline-offset:2px}.quiz-answer-card button.selected{background:#dce8d5}.quiz-answer-card button.correct{background:#d6e9cd}.quiz-answer-card button.incorrect{background:#f0dbcd}.quiz-finish-confirm{padding:22px;background:var(--surface,#fff);border:1px solid #a4b994;border-radius:20px;margin:20px 0;box-shadow:0 6px 24px #31402b15;font-size:14px;line-height:1.8}.quiz-finish-confirm>div{display:flex;gap:12px}.quiz-finish-confirm button{min-height:44px;flex:1}
.quiz-result-hero{text-align:center;padding:15px 0 28px}.quiz-score{font-size:82px;line-height:1.25;color:#5c7d57;font-weight:400;margin:25px 0 12px}.quiz-score small{font-size:23px;margin-left:4px}.quiz-result-hero h1{font-size:24px}.quiz-result-hero p{font-size:13px;opacity:.65}.quiz-result-actions{display:grid;grid-template-columns:1.3fr 1fr;gap:12px;margin-bottom:36px}.quiz-result-actions button{min-height:50px}.quiz-result-row{display:flex;width:100%;align-items:center;gap:12px;text-align:left;padding:20px 0;background:none;border:0;border-bottom:1px solid #dce5dc;color:inherit}.quiz-result-row>span{flex:1;font-size:13px;line-height:1.8}.quiz-result-row small{font-size:10px;opacity:.5;white-space:nowrap}.quiz-result-row b{font-size:20px}.quiz-result-row .correct{color:#608756}.quiz-result-row .incorrect{color:#af765b}
[data-theme="night"] .quiz-screen{color:#dce6dd}[data-theme="night"] .quiz-pack-card,[data-theme="night"] .quiz-setup,[data-theme="night"] .quiz-option,[data-theme="night"] .quiz-finish-confirm{background:#263a32;border-color:#435c4c}[data-theme="night"] .quiz-option.selected,[data-theme="night"] .quiz-option.correct{background:#354d35}[data-theme="night"] .quiz-option.incorrect,[data-theme="night"] .quiz-feedback.is-incorrect{background:#4a3730}[data-theme="night"] .quiz-feedback{background:#30452e}[data-theme="night"] .quiz-stat-grid,[data-theme="night"] .quiz-shortcut{background:#263a32}[data-theme="night"] .quiz-form-grid select{background:#263a32}[data-theme="night"] .quiz-answer-card button{background:#263a32}
@media(max-width:380px){.quiz-screen{padding-left:16px;padding-right:16px}.quiz-top{margin-left:-16px;margin-right:-16px}.quiz-stem{font-size:19px}.quiz-form-grid{gap:15px 10px}.quiz-result-row small{display:none}}