.quiz-page-hero{padding-bottom:42px}.quiz-intro{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:28px}.quiz-intro h2{margin:.3rem 0}.quiz-intro p{color:var(--muted)}.quiz-count-badge{padding:10px 15px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-weight:900;white-space:nowrap}.quiz-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quiz-card{display:flex;flex-direction:column;min-height:215px;padding:21px;border:1px solid var(--line);border-radius:22px;background:var(--surface);box-shadow:var(--shadow);color:inherit;text-decoration:none;transition:.2s}.quiz-card:hover{transform:translateY(-4px);border-color:var(--primary)}.quiz-card-icon{font-size:34px}.quiz-card-kicker{margin-top:18px;font-size:11px;letter-spacing:.12em;font-weight:900;color:var(--primary)}.quiz-card h3{font-size:20px;margin:8px 0}.quiz-card p{color:var(--muted);line-height:1.5}.quiz-card-meta{margin-top:auto;padding-top:16px;display:flex;justify-content:space-between;font-weight:900}.quiz-card-meta span:last-child{color:var(--primary)}.quiz-note{margin-top:22px;padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--soft);display:flex;gap:12px;line-height:1.6}.quiz-note strong{white-space:nowrap}.back-link{display:inline-block;margin-bottom:22px;color:var(--primary);font-weight:900;text-decoration:none}.quiz-app{max-width:900px;margin:auto}.quiz-head{margin-bottom:20px}.quiz-head h1{font-size:clamp(28px,4vw,42px);margin:8px 0}.quiz-subtitle{color:var(--muted)}.quiz-progress-row{display:flex;justify-content:space-between;color:var(--muted);font-size:14px;font-weight:800;margin:20px 0 8px}.quiz-progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden}.quiz-progress span{display:block;height:100%;background:var(--primary)}.quiz-question-card{margin-top:18px;padding:28px;border:1px solid var(--line);border-radius:22px;background:var(--surface);box-shadow:var(--shadow)}.quiz-qno{font-size:12px;letter-spacing:.12em;font-weight:900;color:var(--primary)}.quiz-question{font-size:21px;line-height:1.5;margin:10px 0 22px}.quiz-options{display:grid;gap:12px}.quiz-option{display:flex;gap:12px;width:100%;text-align:left;padding:16px;border:1px solid var(--line);border-radius:14px;background:transparent;color:inherit;font:inherit;cursor:pointer}.quiz-option.selected{border-color:var(--primary);background:rgba(111,120,255,.1)}.quiz-option.correct{border-color:#1f9d62;background:rgba(31,157,98,.1)}.quiz-option.wrong{border-color:#d14b57;background:rgba(209,75,87,.1)}.quiz-option:disabled{cursor:default}.quiz-key{flex:0 0 30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--soft);font-weight:900}.quiz-actions{display:flex;justify-content:flex-end;margin-top:22px}.quiz-submit,.quiz-next,.quiz-retry{border:0;border-radius:12px;padding:13px 19px;background:var(--primary);color:#fff;font:inherit;font-weight:900;cursor:pointer}.quiz-submit:disabled{opacity:.45;cursor:not-allowed}.quiz-feedback{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}.feedback{padding:15px;border-radius:13px;background:var(--soft);margin-top:10px;line-height:1.6}.feedback h4{margin:0 0 5px}.feedback p{margin:0;color:var(--muted)}.quiz-hint{margin-top:15px}.quiz-hint summary{cursor:pointer;color:var(--primary);font-weight:900}.quiz-hint p{color:var(--muted)}.quiz-result{text-align:center;padding:30px;border:1px solid var(--line);border-radius:22px;background:var(--surface);box-shadow:var(--shadow)}.score{font-size:58px;font-weight:950}.result-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:20px}.result-actions a,.result-actions button{padding:12px 17px;border-radius:12px;text-decoration:none;font:inherit;font-weight:900;cursor:pointer}.result-actions a{border:1px solid var(--line);color:inherit}.review{text-align:left;margin-top:25px}.review-item{padding:17px;border:1px solid var(--line);border-radius:14px;margin-top:10px}.review-item p{color:var(--muted);line-height:1.6}.quiz-error{padding:25px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}@media(max-width:850px){.quiz-card-grid{grid-template-columns:1fr 1fr}.quiz-intro{align-items:flex-start;flex-direction:column}}@media(max-width:560px){.quiz-card-grid{grid-template-columns:1fr}.quiz-question-card{padding:20px}.quiz-question{font-size:18px}.quiz-actions{display:block}.quiz-submit,.quiz-next{width:100%}.quiz-note{flex-direction:column}}
/* =========================================================
   QUIZ CATALOG
   ========================================================= */
.quiz-category-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:0 0 44px}
.quiz-category-card{display:flex;flex-direction:column;gap:7px;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:inherit;text-decoration:none;box-shadow:0 8px 26px rgba(16,24,40,.06);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.quiz-category-card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow)}
.quiz-category-icon{font-size:29px;margin-bottom:4px}
.quiz-category-card strong{font-size:16px}
.quiz-category-card span:last-child{font-size:12px;color:var(--muted);font-weight:750}
.quiz-catalog{display:grid;gap:58px}
.quiz-category-section{scroll-margin-top:90px}
.quiz-category-heading{display:flex;justify-content:space-between;gap:25px;margin-bottom:24px}
.quiz-category-label{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-size:12px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.quiz-category-heading h2{font-size:32px;line-height:1.15;margin:7px 0 7px}
.quiz-category-heading p{max-width:720px;color:var(--muted);margin:0;line-height:1.6}
.quiz-topic-group{margin-top:28px}
.quiz-topic-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:14px}
.quiz-topic-heading h3{font-size:21px;margin:0}
.quiz-topic-heading span{font-size:12px;color:var(--muted);font-weight:800}
.quiz-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.quiz-card{min-height:215px}
.quiz-catalog-loading,.quiz-empty{padding:45px 25px;text-align:center;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:var(--muted)}
.quiz-empty h2{margin:0 0 8px;color:inherit}
@media(max-width:1000px){.quiz-category-nav{grid-template-columns:repeat(2,1fr)}.quiz-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.quiz-category-nav{grid-template-columns:1fr}.quiz-category-heading h2{font-size:27px}.quiz-card-grid{grid-template-columns:1fr}.quiz-topic-heading{align-items:flex-start;flex-direction:column;gap:5px}}
@media(prefers-reduced-motion:reduce){.quiz-category-card{transition:none}}
.quiz-category-card.is-empty{opacity:.72;cursor:default}
.quiz-category-card.is-empty:hover{transform:none;border-color:var(--line);box-shadow:0 8px 26px rgba(16,24,40,.06)}

/* DPDP multi-select and set summaries */
.quiz-instructions{margin:14px 0;padding:13px 16px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}.quiz-instructions summary{font-weight:900;cursor:pointer}.quiz-instructions ul{color:var(--muted);line-height:1.7}.quiz-navigation{justify-content:space-between;gap:12px}.quiz-prev{border:1px solid var(--line);border-radius:12px;padding:13px 19px;background:transparent;color:inherit;font:inherit;font-weight:900;cursor:pointer}.quiz-prev:disabled{opacity:.35;cursor:not-allowed}.quiz-next{border:0;border-radius:12px;padding:13px 19px;background:var(--primary);color:#fff;font:inherit;font-weight:900;cursor:pointer}.review-flag{border:1px solid rgba(209,75,87,.5)!important}.set-summary .set-score-list{text-align:left;margin:22px auto;max-width:760px}.set-score-row{display:flex;justify-content:space-between;gap:15px;padding:11px 0;border-bottom:1px solid var(--line);line-height:1.5}.set-score-row span{color:var(--muted)}.score-good{color:#1f9d62}.score-bad{color:#d14b57}.set-results-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.set-result-card{display:grid;gap:7px;padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.set-result-card>span,.set-result-card small{color:var(--muted)}.set-result-card strong{font-size:25px}.review-correct{border-left:4px solid #1f9d62}.review-incorrect{border-left:4px solid #d14b57}.review-subtitle{color:var(--muted)}
@media(max-width:650px){.dpdp-study-card{padding:19px}.dpdp-final-cta{align-items:flex-start;flex-direction:column}.dpdp-final-cta .btn{width:100%;text-align:center}.quiz-navigation{display:grid;grid-template-columns:1fr}.quiz-navigation button{width:100%}.set-results-grid{grid-template-columns:1fr}.set-score-row{align-items:flex-start;flex-direction:column}}