:root{--green:#17834b;--green-dark:#0e6337;--green-soft:#eaf8f0;--blue:#335eea;--blue-soft:#eef2ff;--red-soft:#fff0ed;--ink:#17202a;--muted:#667085;--line:#e5e9ef;--surface:#fff;--page:#f5f7fb}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.55}.page-shell{width:min(980px,calc(100% - 24px));margin:28px auto 60px}.hero{padding:25px;border-radius:18px;background:linear-gradient(135deg,#e8f8ef,#eef3ff);border:1px solid #dce8e2;margin-bottom:18px}.hero h1{margin:0 0 8px;font-size:clamp(25px,4vw,38px);line-height:1.2}.hero p{margin:0;color:var(--muted)}.topbar{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:16px}.score-box{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:11px 15px;font-weight:700}.progress-note{color:var(--muted);font-size:14px}.question-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;margin-bottom:18px;box-shadow:0 8px 28px rgba(24,39,75,.06)}.question-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:15px}.question-number{font-weight:800;color:var(--blue);font-size:15px}.meta-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.mcq-badge{display:inline-flex;align-items:center;min-height:34px;padding:7px 13px;border-radius:999px;font-size:14px;line-height:1;font-weight:800;text-decoration:none;white-space:nowrap}.badge-exam{background:var(--green-soft);color:var(--green-dark);border:1px solid #bde7ce}.badge-class{background:var(--blue-soft);color:#2647b8;border:1px solid #cad5ff;text-transform:uppercase;letter-spacing:.25px}.question-text{font-size:18px;margin:0 0 17px;overflow-wrap:anywhere}.question-text i,.question-text em{font-weight:600}.question-image{display:block;max-width:min(100%,440px);height:auto;border-radius:12px;margin:12px 0 18px}.options{display:grid;gap:10px;margin:0;padding:0;list-style:none}.option-btn{width:100%;display:flex;align-items:flex-start;gap:10px;padding:13px 15px;border:1px solid #dce2ea;border-radius:12px;background:#fff;color:var(--ink);text-align:left;font-size:16px;cursor:pointer;transition:.18s}.option-btn:hover{border-color:#9badf0;background:#f8f9ff;transform:translateY(-1px)}.option-btn.correct{background:#e6f8ed;border-color:#56b77d}.option-btn.incorrect{background:var(--red-soft);border-color:#ed8f7e}.option-btn:disabled{cursor:default;opacity:1;transform:none}.option-letter{flex:0 0 27px;height:27px;border-radius:50%;display:inline-grid;place-items:center;background:#edf0f5;font-size:13px;font-weight:800}.answer-feedback{min-height:25px;margin-top:11px;font-weight:800}.explanation-toggle{margin-top:9px;padding:7px 11px;border:1px solid #cfd6df;border-radius:8px;background:#fff;color:#344054;font-size:13px;font-weight:700;cursor:pointer}.explanation-toggle:hover{background:#f7f8fa}.explanation-box{display:none;margin-top:12px;padding:15px;border-radius:12px;background:#fffbea;border:1px solid #f0df95;font-size:15px}.explanation-box.open{display:block}.ai-status{color:var(--muted);font-size:14px;font-weight:600}
		.ai-loading{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    padding:14px;
    margin-top:12px;
    border-radius:10px;
    background:#eef4ff;
    border:1px solid #cddcff;
    color:#335eea;
    font-size:15px;
    font-weight:700;
}

.ai-spinner{
    width:20px;
    height:20px;
    border:3px solid #dbe8ff;
    border-top:3px solid #335eea;
    border-radius:50%;
    animation:aiSpin .8s linear infinite;
}

@keyframes aiSpin{
    from{
        transform:rotate(0deg);
    }
    to{
        transform:rotate(360deg);
    }
}
		.pagination{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:7px;margin-top:25px}.pagination a,.pagination span{min-width:38px;height:38px;padding:0 11px;border-radius:9px;display:inline-grid;place-items:center;border:1px solid var(--line);background:#fff;color:#344054;text-decoration:none;font-weight:700}.pagination .active{background:var(--blue);border-color:var(--blue);color:#fff}.empty-state{padding:38px 20px;border-radius:16px;background:#fff;border:1px solid var(--line);text-align:center}@media(max-width:600px){.page-shell{width:min(100% - 14px,980px);margin-top:12px}.hero,.question-card{padding:17px;border-radius:14px}.question-text{font-size:17px}.mcq-badge{min-height:36px;padding:8px 13px;font-size:14px}.option-btn{font-size:15px;padding:12px}}.question-card{border-top:5px solid #2f855a;padding:24px 24px 22px}.question-head{padding-bottom:14px;border-bottom:1px solid #edf0f4}.question-number{font-size:17px;color:#17202a}.q-label{color:var(--blue);font-weight:900}.q-total{color:var(--muted);font-size:14px}.meta-row{margin-left:auto}.mcq-badge{box-shadow:0 2px 8px rgba(16,24,40,.06)}.badge-exam{font-size:15px}.badge-class{font-size:15px}.question-text{font-size:20px;font-weight:700;line-height:1.55;margin-top:18px}.option-btn{min-height:58px;border-width:2px;border-color:#e1e6ed;border-radius:14px;padding:14px 16px;font-size:17px;line-height:1.45}.option-letter{flex-basis:32px;width:32px;height:32px;background:#eef2ff;color:#2849bd;font-size:14px}.option-btn:hover:not(:disabled){border-color:#6f89e8;background:#f6f8ff}.option-btn.correct .option-letter{background:#198754;color:#fff}.option-btn.incorrect .option-letter{background:#d94b3d;color:#fff}.answer-feedback{padding-top:4px}.explanation-toggle{background:#273c75;color:#fff;border-color:#273c75;padding:9px 14px}.explanation-toggle:hover{background:#1f3060}.explanation-box{background:#f8fafc;border-color:#d9e2ec;padding:16px}.ai-exp-block,.ai-did-block,.ai-remember-block{border-radius:12px;padding:13px 14px;margin:10px 0}.ai-exp-block{background:#fff;border:1px solid #dfe6ee}.ai-did-block{background:#fff8e8;border-left:5px solid #f59e0b}.ai-remember-block{background:#edf5ff;border-left:5px solid #2563eb}@media(max-width:600px){.question-card{padding:17px 14px}.question-head{align-items:flex-start}.meta-row{width:100%;margin-left:0}.question-text{font-size:18px}.option-btn{font-size:16px;min-height:54px}.mcq-badge{font-size:13px!important;padding:8px 11px}.q-total{display:inline}}
      
	  
	  .hero{
    background:linear-gradient(135deg,#e8f8ef 0%,#eef4ff 100%);
    border:1px solid #d9e7df;
    border-radius:22px;
    padding:28px;
    margin-bottom:22px;
    box-shadow:0 12px 35px rgba(25,45,85,.08);
}

.hero-content{
    display:flex;
    align-items:center;
    gap:22px;
}

.hero-icon{
    width:72px;
    height:72px;
    border-radius:18px;
    background:#ffffff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:34px;
    box-shadow:0 8px 25px rgba(0,0,0,.08);
    flex-shrink:0;
}

.hero-text h1{
    margin:0;
    font-size:36px;
    font-weight:800;
    color:#17202a;
    line-height:1.2;
}

.hero-text p{
    margin:10px 0 16px;
    color:#667085;
    font-size:17px;
}

.hero-dot{
    margin:0 8px;
    color:#8da2c8;
}

.hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}

.hero-tag{
    display:inline-flex;
    align-items:center;
    padding:8px 14px;
    border-radius:999px;
    background:#ffffff;
    border:1px solid #dfe6ef;
    font-size:14px;
    font-weight:700;
    color:#335eea;
}

@media(max-width:700px){

.hero{
    padding:20px;
}

.hero-content{
    flex-direction:column;
    text-align:center;
}

.hero-text h1{
    font-size:28px;
}

.hero-text p{
    font-size:15px;
}

.hero-tags{
    justify-content:center;
}

.hero-icon{
    width:62px;
    height:62px;
    font-size:28px;
}

}
.question-text table{
    width:100%;
    border-collapse:collapse;
    border:2px solid #555;
    margin:15px 0;
}

.question-text th,
.question-text td{
    border:1px solid #555;
    padding:10px;
    text-align:left;
    vertical-align:top;
}

.question-text th{
    background:#eef5ff;
    font-weight:bold;
}

.question-text tr:nth-child(even){
    background:#fafafa;
}

.match-table{
    width:100%;
    border-collapse:collapse;
    border:2px solid #555;
}

.match-table th,
.match-table td{
    border:1px solid #555;
    padding:10px;
}