/* =============================================================
   KAR Academy Quiz System — Public Styles v2
   ============================================================= */

.kar-quiz-container *,
.kar-qb-page *,
.kar-qb-banks-page *,
.kar-qb-categories-grid * { box-sizing: border-box; }

/* ── GRID ── */
.kar-grid-1 { display: grid; grid-template-columns: 1fr; gap: 24px; }
.kar-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.kar-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.kar-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

@media(max-width:1100px){ .kar-grid-4{grid-template-columns:repeat(3,1fr);} }
@media(max-width:900px) { .kar-grid-3,.kar-grid-4{grid-template-columns:repeat(2,1fr);} }
@media(max-width:580px) { .kar-grid-2,.kar-grid-3,.kar-grid-4{grid-template-columns:1fr;} }

/* ── BUTTONS ── */
.kar-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 26px;border-radius:8px;font-size:14px;font-weight:600;line-height:1.4;text-decoration:none!important;border:none;cursor:pointer;transition:all .25s;white-space:nowrap;outline:none;font-family:inherit;}
.kar-btn:focus-visible{outline:3px solid #667eea;outline-offset:2px;}
.kar-btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff!important;box-shadow:0 3px 10px rgba(102,126,234,.35);}
.kar-btn-primary:hover{opacity:.92;transform:translateY(-1px);box-shadow:0 6px 18px rgba(102,126,234,.45);color:#fff!important;}
.kar-btn-secondary{background:#f0f2f5;color:#555!important;border:1px solid #e0e0e0;}
.kar-btn-secondary:hover{background:#e4e6ea;color:#333!important;transform:translateY(-1px);}
.kar-btn-success{background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff!important;box-shadow:0 3px 10px rgba(17,153,142,.3);}
.kar-btn-success:hover{opacity:.92;transform:translateY(-1px);color:#fff!important;}
.kar-btn-lg{padding:14px 36px;font-size:16px;border-radius:10px;}
.kar-btn-sm{padding:7px 16px;font-size:13px;border-radius:6px;}
.kar-btn-full{width:100%;display:flex;}

.kar-btn-show-answers{background:linear-gradient(135deg,#a18cd1,#fbc2eb);color:#fff!important;padding:10px 22px;border-radius:8px;font-size:14px;font-weight:700;border:none;cursor:pointer;transition:all .25s;font-family:inherit;box-shadow:0 2px 10px rgba(161,140,209,.3);}
.kar-btn-show-answers:hover{opacity:.9;transform:translateY(-1px);}

.kar-btn-test-yourself{background:linear-gradient(135deg,#f7971e,#ffd200);color:#333!important;padding:12px 30px;border-radius:8px;font-size:14px;font-weight:700;border:none;cursor:pointer;transition:all .25s;font-family:inherit;box-shadow:0 3px 12px rgba(247,151,30,.3);}
.kar-btn-test-yourself:hover{opacity:.92;transform:translateY(-2px);box-shadow:0 6px 20px rgba(247,151,30,.4);}

.kar-btn-spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:karSpin .7s linear infinite;}
@keyframes karSpin{to{transform:rotate(360deg);}}

/* ── CARDS ── */
.kar-quiz-card,.kar-qb-card{background:#fff;border-radius:14px;box-shadow:0 2px 16px rgba(0,0,0,.07);overflow:hidden;transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;}
.kar-quiz-card:hover,.kar-qb-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.13);}
.kar-card-image{height:185px;overflow:hidden;flex-shrink:0;}
.kar-card-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.kar-quiz-card:hover .kar-card-image img,.kar-qb-card:hover .kar-card-image img{transform:scale(1.04);}
.kar-default-image{background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;}
.kar-quiz-icon{font-size:52px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.2));}
.kar-card-content{padding:22px;display:flex;flex-direction:column;flex:1;}
.kar-card-title{font-size:17px;font-weight:700;margin:0 0 8px;color:#222;line-height:1.4;}
.kar-card-desc{font-size:14px;color:#777;margin:0 0 14px;line-height:1.6;flex:1;}
.kar-card-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px;font-size:13px;color:#999;}

/* ── CATEGORY CARDS ── */
.kar-category-card{display:flex;flex-direction:column;align-items:center;background:#fff;border-radius:14px;padding:32px 20px;text-align:center;box-shadow:0 2px 16px rgba(0,0,0,.07);border:2px solid transparent;text-decoration:none!important;color:#333!important;transition:all .3s;}
.kar-category-card:hover{border-color:#667eea;transform:translateY(-4px);box-shadow:0 10px 30px rgba(102,126,234,.2);}
.kar-category-icon{font-size:44px;margin-bottom:12px;}
.kar-category-name{font-size:17px;font-weight:700;margin:0 0 6px;color:#222;}
.kar-category-count{font-size:13px;color:#999;background:#f5f5f5;padding:4px 12px;border-radius:20px;margin-bottom:8px;}
.kar-category-desc{font-size:13px;color:#aaa;margin:0;}

/* ── BREADCRUMB ── */
.kar-breadcrumb{display:flex;align-items:center;gap:6px;margin-bottom:18px;font-size:14px;color:#aaa;flex-wrap:wrap;}
.kar-breadcrumb a{color:#667eea;text-decoration:none;font-weight:600;}
.kar-breadcrumb a:hover{color:#4a5ed4;text-decoration:underline;}
.kar-breadcrumb-sep{color:#ddd;user-select:none;}

/* ── PAGE HEADER ── */
.kar-page-header{margin-bottom:30px;}
.kar-page-title{font-size:28px;font-weight:800;margin:0 0 10px;color:#222;}
.kar-page-desc{font-size:15px;color:#666;margin:0;line-height:1.7;}

/* ── UTILITY ── */
.kar-no-items,.kar-error{text-align:center;padding:40px 20px;font-size:16px;color:#aaa;background:#fafafa;border-radius:12px;border:2px dashed #e0e0e0;}
.kar-error{color:#c0392b;background:#fdf2f2;border-color:#f5c6c6;}
.kar-text-success{color:#27ae60;}
.kar-text-danger{color:#e74c3c;}

/* =============================================================
   QB STUDY PAGE — HERO HEADER
   ============================================================= */
.kar-qb-page{max-width:900px;margin:0 auto;}

.kar-qb-hero{
    background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);
    border-radius:18px;
    padding:48px 40px;
    margin-bottom:28px;
    color:#fff;
    text-align:center;
    position:relative;
    overflow:hidden;
}
.kar-qb-hero::before{
    content:'';position:absolute;top:-60px;right:-60px;width:200px;height:200px;
    background:rgba(255,255,255,.06);border-radius:50%;
}
.kar-qb-hero::after{
    content:'';position:absolute;bottom:-40px;left:-40px;width:150px;height:150px;
    background:rgba(255,255,255,.04);border-radius:50%;
}
.kar-qb-hero-inner{position:relative;z-index:1;}
.kar-qb-hero-badge{
    display:inline-block;
    background:rgba(255,255,255,.18);
    padding:5px 16px;
    border-radius:20px;
    font-size:13px;
    font-weight:600;
    letter-spacing:.5px;
    margin-bottom:16px;
    backdrop-filter:blur(4px);
}
.kar-qb-hero-title{
    font-size:30px;
    font-weight:800;
    margin:0 0 10px;
    line-height:1.3;
    color:#fff;
}
.kar-qb-hero-desc{
    font-size:15px;
    opacity:.85;
    margin:0 auto 24px;
    max-width:600px;
    line-height:1.6;
    color:#fff;
}
.kar-qb-hero-stats{
    display:flex;
    justify-content:center;
    gap:30px;
    margin-bottom:28px;
    flex-wrap:wrap;
}
.kar-qb-stat{text-align:center;}
.kar-qb-stat-num{display:block;font-size:24px;font-weight:800;line-height:1.2;}
.kar-qb-stat-label{display:block;font-size:12px;opacity:.8;text-transform:uppercase;letter-spacing:.5px;margin-top:3px;}

.kar-qb-hero-actions{
    display:flex;
    justify-content:center;
    gap:14px;
    flex-wrap:wrap;
}
.kar-qb-hero-actions .kar-btn-show-answers{
    background:rgba(255,255,255,.2);
    backdrop-filter:blur(4px);
    border:1.5px solid rgba(255,255,255,.3);
    box-shadow:none;
}
.kar-qb-hero-actions .kar-btn-show-answers:hover{
    background:rgba(255,255,255,.3);
}
.kar-qb-hero-actions .kar-btn-test-yourself{
    box-shadow:0 3px 14px rgba(0,0,0,.2);
}

@media(max-width:580px){
    .kar-qb-hero{padding:32px 20px;}
    .kar-qb-hero-title{font-size:24px;}
    .kar-qb-hero-stats{gap:18px;}
    .kar-qb-hero-actions{flex-direction:column;align-items:stretch;}
    .kar-qb-hero-actions .kar-btn{justify-content:center;}
}

/* =============================================================
   SUBJECT FILTER BAR
   ============================================================= */
.kar-qb-filters-bar{
    background:#fff;
    border-radius:12px;
    padding:16px 22px;
    margin-bottom:24px;
    box-shadow:0 1px 8px rgba(0,0,0,.04);
    display:flex;
    align-items:center;
    gap:14px;
    flex-wrap:wrap;
}
.kar-qb-filters-label{
    font-size:13px;
    font-weight:700;
    color:#999;
    text-transform:uppercase;
    letter-spacing:.5px;
    flex-shrink:0;
}
.kar-qb-filters-list{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    flex:1;
}
.kar-filter-chip{
    display:inline-flex;
    align-items:center;
    gap:5px;
    padding:7px 16px;
    border-radius:20px;
    font-size:13px;
    font-weight:600;
    border:1.5px solid #e0e0e0;
    background:#fff;
    color:#666;
    cursor:pointer;
    transition:all .2s;
    font-family:inherit;
}
.kar-filter-chip:hover{border-color:#667eea;color:#667eea;background:#f8f9ff;}
.kar-filter-chip.kar-filter-active{border-color:#667eea;background:#667eea;color:#fff;}
.kar-chip-count{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:20px;
    height:20px;
    border-radius:10px;
    background:rgba(0,0,0,.08);
    font-size:11px;
    font-weight:700;
    padding:0 5px;
}
.kar-filter-active .kar-chip-count{background:rgba(255,255,255,.25);}

/* =============================================================
   QB QUESTION ITEMS
   ============================================================= */
.kar-qb-list{display:flex;flex-direction:column;gap:12px;}

.kar-qb-item{
    background:#fff;
    border-radius:12px;
    padding:0;
    box-shadow:0 1px 6px rgba(0,0,0,.05);
    border:1px solid #f0f0f0;
    transition:box-shadow .25s,border-color .25s;
    overflow:hidden;
}
.kar-qb-item:hover{box-shadow:0 4px 16px rgba(0,0,0,.08);}
.kar-qb-item-open{border-color:#667eea;box-shadow:0 4px 20px rgba(102,126,234,.12);}

/* Header Row */
.kar-qb-item-header{
    display:flex;
    align-items:center;
    gap:14px;
    padding:18px 22px;
    cursor:default;
}
.kar-qb-num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:32px;
    height:32px;
    border-radius:8px;
    background:#f0f4ff;
    color:#667eea;
    font-weight:800;
    font-size:13px;
    flex-shrink:0;
}
.kar-qb-item-open .kar-qb-num{
    background:#667eea;
    color:#fff;
}
.kar-qb-item-title{
    flex:1;
    font-size:15px;
    font-weight:600;
    color:#333;
    line-height:1.6;
    min-width:0;
}

/* Expand Button — minimal, no background */
.kar-qb-expand{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:28px;
    height:28px;
    padding:0;
    border:none;
    background:transparent;
    color:#bbb;
    cursor:pointer;
    flex-shrink:0;
    transition:color .2s,transform .2s;
    border-radius:6px;
}
.kar-qb-expand:hover{color:#667eea;}
.kar-qb-expand:focus-visible{outline:2px solid #667eea;outline-offset:2px;}
.kar-qb-expand .kar-expand-arrow{transition:transform .3s ease;}
.kar-qb-expand[aria-expanded="true"] .kar-expand-arrow{transform:rotate(180deg);}
.kar-qb-expand[aria-expanded="true"]{color:#667eea;}

/* Image */
.kar-qb-item-image{padding:0 22px 12px 68px;}
.kar-qb-item-image img{max-width:100%;height:auto;border-radius:8px;display:block;}
@media(max-width:480px){.kar-qb-item-image{padding:0 14px 12px 14px;}}

/* Expandable Detail */
.kar-qb-item-detail{display:none;}
.kar-qb-item-detail-inner{
    padding:0 22px 22px 68px;
    border-top:1px solid #f5f5f5;
    padding-top:18px;
}
@media(max-width:480px){.kar-qb-item-detail-inner{padding:16px 14px 18px 14px;}}

/* Options */
.kar-qb-opts{display:flex;flex-direction:column;gap:8px;margin-bottom:14px;}
.kar-qb-opt{
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px 14px;
    border-radius:8px;
    background:#f8f8f8;
    border:1px solid transparent;
    font-size:14px;
    transition:background .2s;
}
.kar-qb-opt-correct{background:#eafaf1;border-color:#a9dfbf;}
.kar-qb-opt-key{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:28px;
    height:28px;
    border-radius:6px;
    background:#eee;
    font-weight:700;
    font-size:13px;
    color:#666;
    flex-shrink:0;
}
.kar-qb-opt-key-correct{background:#27ae60;color:#fff;}
.kar-qb-opt-val{flex:1;color:#444;line-height:1.5;}
.kar-qb-opt-badge{font-size:11px;font-weight:700;color:#27ae60;flex-shrink:0;padding:2px 8px;background:#d5f5e3;border-radius:4px;}

/* Explanation */
.kar-qb-explanation{
    display:flex;
    align-items:flex-start;
    gap:10px;
    padding:14px 16px;
    background:#eef7fb;
    border-radius:10px;
    border-left:3px solid #3498db;
    font-size:14px;
    line-height:1.7;
    color:#444;
    margin-top:12px;
}
.kar-qb-explanation-label{font-weight:700;color:#3498db;margin-bottom:4px;font-size:13px;}
.kar-qb-explanation-body{margin-top:2px;}

/* ── FOOTER ── */
.kar-qb-footer{
    margin-top:36px;
    padding-top:24px;
    border-top:2px solid #f0f0f0;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:14px;
    flex-wrap:wrap;
}
@media(max-width:480px){
    .kar-qb-footer{flex-direction:column;}
    .kar-qb-footer .kar-btn{width:100%;justify-content:center;}
}

/* =============================================================
   SELF TEST INTRO
   ============================================================= */
.kar-selftest-intro{text-align:center;margin-bottom:24px;}
.kar-selftest-intro .kar-btn-secondary{margin-bottom:20px;}
.kar-selftest-intro-card{
    background:#fff;
    border-radius:18px;
    padding:44px 40px;
    box-shadow:0 4px 30px rgba(0,0,0,.09);
    max-width:540px;
    margin:0 auto;
}
@media(max-width:580px){.kar-selftest-intro-card{padding:30px 20px;}}
.kar-selftest-intro-icon{font-size:54px;margin-bottom:14px;}
.kar-selftest-intro-card h2{font-size:26px;font-weight:800;margin:0 0 8px;color:#222;}
.kar-selftest-intro-name{font-size:16px;color:#667eea;font-weight:600;margin:0 0 12px;}
.kar-selftest-intro-note{font-size:14px;color:#888;line-height:1.7;margin:0 0 20px;}
.kar-selftest-intro-stats{
    display:flex;
    justify-content:center;
    flex-wrap:wrap;
    gap:10px;
}
.kar-selftest-intro-stats span{
    display:inline-flex;
    align-items:center;
    gap:5px;
    background:#f0f4ff;
    color:#667eea;
    padding:6px 16px;
    border-radius:20px;
    font-size:13px;
    font-weight:600;
}

/* ── RESULT ACTIONS (self test) ── */
.kar-result-actions{
    display:flex;
    justify-content:center;
    gap:14px;
    margin-top:30px;
    padding-top:20px;
    border-top:2px solid #f0f0f0;
    flex-wrap:wrap;
}

/* =============================================================
   QUIZ CONTAINER
   ============================================================= */
.kar-quiz-container{max-width:820px;margin:0 auto;font-family:inherit;}

/* Registration */
.kar-register-card{background:#fff;border-radius:18px;padding:44px 40px;box-shadow:0 4px 30px rgba(0,0,0,.09);text-align:center;max-width:540px;margin:0 auto;}
@media(max-width:580px){.kar-register-card{padding:30px 20px;}}
.kar-register-icon{font-size:54px;margin-bottom:12px;}
.kar-register-card h2{font-size:26px;font-weight:800;margin:0 0 8px;color:#222;}
.kar-quiz-desc{font-size:15px;color:#777;margin:0 0 20px;line-height:1.6;}
.kar-quiz-info-bar{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.kar-info-pill{display:inline-flex;align-items:center;gap:5px;background:#f0f4ff;color:#667eea;padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600;}
.kar-register-form{text-align:left;max-width:380px;margin:0 auto;}
.kar-form-group{margin-bottom:20px;}
.kar-form-group label{display:block;font-size:14px;font-weight:600;color:#444;margin-bottom:7px;}
.kar-required{color:#e74c3c;margin-left:2px;}
.kar-form-group input{width:100%;padding:12px 16px;border:2px solid #e8e8e8;border-radius:9px;font-size:15px;color:#333;background:#fafafa;transition:border-color .25s,background .25s;outline:none;}
.kar-form-group input:focus{border-color:#667eea;background:#fff;box-shadow:0 0 0 3px rgba(102,126,234,.12);}
.kar-form-error{background:#fdf2f2;color:#c0392b;border:1px solid #f5c6c6;border-radius:8px;padding:10px 14px;font-size:14px;margin-bottom:16px;}

/* Quiz Header */
.kar-quiz-header{background:#fff;border-radius:14px;padding:20px 24px;margin-bottom:22px;box-shadow:0 2px 14px rgba(0,0,0,.06);}
.kar-quiz-header-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:14px;}
.kar-quiz-running-title{font-size:18px;font-weight:700;margin:0;color:#333;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* Timer */
.kar-timer{display:inline-flex;align-items:center;gap:7px;background:#fff8e1;border:1.5px solid #ffe082;padding:7px 18px;border-radius:22px;font-weight:700;font-size:17px;color:#e65100;flex-shrink:0;transition:all .3s;}
.kar-timer.kar-timer-warning{background:#fdecea;border-color:#f5c6c6;color:#c0392b;animation:karPulse 1s infinite;}
@keyframes karPulse{0%,100%{opacity:1}50%{opacity:.6}}
.kar-timer-display{font-variant-numeric:tabular-nums;min-width:52px;text-align:center;}

/* Progress */
.kar-progress{height:8px;background:#eee;border-radius:4px;overflow:hidden;margin-bottom:6px;}
.kar-progress-bar{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:4px;transition:width .45s;width:0%;}
.kar-progress-text{font-size:13px;color:#aaa;text-align:right;}

/* Question Slide */
.kar-question-slide{background:#fff;border-radius:14px;padding:30px;margin-bottom:22px;box-shadow:0 2px 14px rgba(0,0,0,.06);animation:karFade .3s;}
@keyframes karFade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:580px){.kar-question-slide{padding:20px 16px;}}
.kar-question-number{font-size:12px;font-weight:700;color:#667eea;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px;}
.kar-question-title{font-size:17px;font-weight:600;line-height:1.65;color:#222;margin-bottom:22px;}
.kar-question-image{margin-bottom:20px;border-radius:10px;overflow:hidden;display:inline-block;max-width:100%;}
.kar-question-image img{max-width:100%;height:auto;display:block;border-radius:10px;}

/* Options (Quiz) */
.kar-options-list{display:flex;flex-direction:column;gap:10px;}
.kar-option-item{display:flex;align-items:center;gap:13px;padding:14px 18px;border:2px solid #ebebeb;border-radius:11px;cursor:pointer;transition:all .2s;background:#fafafa;position:relative;user-select:none;}
.kar-option-item:hover{border-color:#667eea;background:#f5f7ff;}
.kar-option-item.kar-selected{border-color:#667eea;background:#eff3ff;box-shadow:0 0 0 3px rgba(102,126,234,.12);}
.kar-option-item input[type="radio"]{position:absolute;opacity:0;pointer-events:none;}
.kar-option-label{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:#e9ecef;font-weight:700;font-size:14px;color:#555;flex-shrink:0;transition:background .2s,color .2s;}
.kar-selected .kar-option-label{background:#667eea;color:#fff;}
.kar-option-text{font-size:15px;color:#333;line-height:1.5;flex:1;}

/* Navigation */
.kar-quiz-navigation{display:flex;align-items:center;gap:12px;padding:16px 0 8px;flex-wrap:wrap;}
.kar-nav-spacer{flex:1;}
@media(max-width:400px){.kar-quiz-navigation{flex-direction:column;}.kar-quiz-navigation .kar-btn{width:100%;}.kar-nav-spacer{display:none;}}

/* =============================================================
   RESULTS
   ============================================================= */
.kar-results-container{background:#fff;border-radius:18px;padding:44px 40px;box-shadow:0 4px 30px rgba(0,0,0,.09);animation:karFade .4s;}
@media(max-width:580px){.kar-results-container{padding:28px 18px;}}
.kar-results-header{text-align:center;margin-bottom:28px;}
.kar-result-emoji{font-size:62px;line-height:1;margin-bottom:14px;display:block;}
.kar-result-title{font-size:26px;font-weight:800;margin:0 0 6px;color:#222;}
.kar-result-subtitle{font-size:15px;margin:0;font-weight:500;}

.kar-result-score-circle{width:148px;height:148px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto 28px;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.15);}
.kar-score-passed{background:linear-gradient(135deg,#11998e,#38ef7d);}
.kar-score-failed{background:linear-gradient(135deg,#eb3349,#f45c43);}
.kar-score-big{font-size:38px;font-weight:800;line-height:1;letter-spacing:-1px;}
.kar-score-circle-label{font-size:12px;font-weight:500;opacity:.85;margin-top:4px;text-transform:uppercase;letter-spacing:.5px;}

.kar-result-stats{display:flex;justify-content:center;margin:0 auto 24px;max-width:500px;background:#f8f9fa;border-radius:14px;overflow:hidden;border:1px solid #efefef;}
.kar-stat-item{flex:1;padding:18px 10px;text-align:center;border-right:1px solid #efefef;}
.kar-stat-item:last-child{border-right:none;}
.kar-stat-number{display:block;font-size:28px;font-weight:800;line-height:1;color:#444;margin-bottom:5px;}
.kar-stat-label{display:block;font-size:12px;color:#aaa;font-weight:600;text-transform:uppercase;letter-spacing:.4px;}
.kar-stat-correct .kar-stat-number{color:#27ae60;}
.kar-stat-wrong .kar-stat-number{color:#e74c3c;}
.kar-stat-skipped .kar-stat-number{color:#f39c12;}

.kar-result-badge-wrap{text-align:center;margin-bottom:28px;}
.kar-result-badge{display:inline-block;padding:8px 28px;border-radius:30px;font-size:14px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;}
.kar-badge-pass{background:#d4efdf;color:#1e8449;border:2px solid #a9dfbf;}
.kar-badge-fail{background:#fdecea;color:#c0392b;border:2px solid #f5c6c6;}
.kar-result-divider{height:2px;background:#f0f0f0;border-radius:2px;margin:0 0 30px;}

/* Review */
.kar-result-review{text-align:left;}
.kar-review-heading{font-size:20px;font-weight:700;margin:0 0 20px;color:#333;}
.kar-review-item{background:#f9f9f9;border-radius:12px;padding:22px;margin-bottom:16px;border-left:5px solid #ddd;}
.kar-review-correct{border-left-color:#27ae60;background:#f8fff9;}
.kar-review-wrong{border-left-color:#e74c3c;background:#fff8f8;}
.kar-review-skipped{border-left-color:#f39c12;background:#fffdf0;}
@media(max-width:580px){.kar-review-item{padding:16px 14px;}}

.kar-review-q-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:10px;flex-wrap:wrap;}
.kar-review-q-num{font-size:12px;font-weight:700;color:#999;text-transform:uppercase;letter-spacing:.5px;}
.kar-review-q-status{font-size:13px;font-weight:700;color:#555;}
.kar-review-q-title{font-size:15px;font-weight:600;color:#333;line-height:1.6;margin-bottom:14px;}

.kar-review-options{display:flex;flex-direction:column;gap:7px;margin-bottom:12px;}
.kar-review-opt{display:flex;align-items:center;gap:10px;padding:9px 14px;border-radius:8px;background:#f0f0f0;font-size:14px;flex-wrap:wrap;}
.kar-review-opt-correct{background:#d5f5e3;border:1px solid #a9dfbf;}
.kar-review-opt-wrong{background:#fdecea;border:1px solid #f5c6c6;}
.kar-review-opt-label{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:rgba(0,0,0,.08);font-weight:700;font-size:13px;flex-shrink:0;}
.kar-review-opt-text{flex:1;min-width:0;line-height:1.5;}

.kar-ans-tag{display:inline-flex;align-items:center;font-size:11px;font-weight:700;padding:3px 10px;border-radius:4px;white-space:nowrap;flex-shrink:0;}
.kar-tag-correct{background:#27ae60;color:#fff;}
.kar-tag-wrong{background:#e74c3c;color:#fff;}
.kar-review-skipped-note{font-size:13px;color:#aaa;font-style:italic;margin-bottom:10px;}

.kar-review-explanation{display:flex;align-items:flex-start;gap:10px;margin-top:12px;padding:13px 16px;background:#eaf6fb;border-radius:9px;border-left:3px solid #3498db;font-size:14px;line-height:1.65;color:#444;}
.kar-explanation-icon{font-size:18px;flex-shrink:0;margin-top:1px;}

/* ── RESPONSIVE ── */
@media(max-width:680px){
    .kar-result-stats{flex-wrap:wrap;}
    .kar-stat-item{flex:1 1 48%;border-right:none;border-bottom:1px solid #efefef;}
    .kar-stat-item:last-child{border-bottom:none;}
    .kar-quiz-header-top{flex-direction:column;align-items:flex-start;}
    .kar-timer{align-self:flex-end;}
}
@media(max-width:480px){
    .kar-result-score-circle{width:120px;height:120px;}
    .kar-score-big{font-size:30px;}
    .kar-result-title{font-size:22px;}
}

/* ── PRINT ── */
@media print{
    .kar-btn,.kar-breadcrumb,.kar-qb-footer,.kar-qb-expand,.kar-btn-show-answers,.kar-qb-filters-bar,.kar-qb-hero-actions,.kar-selftest-intro{display:none!important;}
    .kar-qb-item-detail{display:block!important;}
    .kar-qb-item{break-inside:avoid;box-shadow:none;border:1px solid #ddd;}
    .kar-qb-hero{background:#f0f4ff!important;color:#333!important;-webkit-print-color-adjust:exact;print-color-adjust:exact;}
    .kar-qb-hero-title,.kar-qb-hero-desc,.kar-qb-hero-badge{color:#333!important;}
}