/* Frontend UI */
.bhc-wrap{border:2px solid #fe1614;border-radius:8px;padding:16px;font-family:system-ui,Arial,Helvetica,sans-serif;background:#fff;max-width:1100px;margin:20px auto}
.bhc-header{display:flex;gap:12px;justify-content:space-between;background:#fe16142e;border:1px solid #fe1614;border-radius:6px;padding:8px 12px;margin-bottom:12px}
.bhc-start{text-align:center;margin:12px 0}
.bhc-body{display:grid;grid-template-columns:2fr 1fr;gap:16px}
.bhc-side{border:2px solid #fe1614;border-radius:8px;padding:10px;min-height:200px}
.bhc-side-title{font-weight:700;margin-bottom:8px}
.bhc-qtext{margin:6px 0 10px 0}
.bhc-qimage img{max-width:100%;height:auto;border:1px solid #ddd;border-radius:6px}
.bhc-option{display:flex;align-items:center;gap:8px;border:1px solid #ddd;border-radius:6px;padding:8px;margin:6px 0}
.bhc-optimg{max-height:80px}
.bhc-key{font-weight:700;min-width:24px}
.bhc-nav{display:flex;gap:8px;margin-top:10px}
.bhc-btn{background:#4CAF50;color:#fff;border:0;border-radius:6px;padding:8px 12px;cursor:pointer}
.bhc-btn:hover{opacity:.9}
.bhc-skipped button{display:inline-block;margin:4px;border:1px solid #4CAF50;background:#000;padding:6px 10px;border-radius:6px;cursor:pointer}
.bhc-locked,.bhc-error{border:2px solid #f44336;padding:12px;border-radius:8px;background:#fff3f3;color:#b71c1c;margin:12px 0}
.bhc-login-wrap{max-width:420px;margin:0 auto}
.bhc-result{border:2px solid #fe1614;background:#fe16142e;border-radius:8px;padding:16px}
/* ✅ Quiz Grid Layout */
.bhc-quiz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 40px auto;
    max-width: 1100px;
    padding: 0 15px;
}

/* ✅ Quiz Card */
.bhc-quiz-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    text-align: center;
    padding: 20px;
    transition: all 0.3s ease;
}

.bhc-quiz-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.15);
}

/* ✅ Quiz Thumbnail */
.bhc-quiz-thumb img {
    max-width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 15px;
}

/* ✅ Quiz Title */
.bhc-quiz-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #222;
}

/* ✅ Start Button */
.bhc-btn {
    display: inline-block;
    background: #e63946;
    color: #fff !important;
    font-size: 15px;
    font-weight: 600;
    padding: 10px 18px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.bhc-btn:hover {
    background: #c82333;
}

@media (max-width:900px){.bhc-body{grid-template-columns:1fr}}