/* ==========================================
   QUIZ COMPONENT, OPTIONS BUTTONS & FEEDBACKS
   ========================================== */

.screen-header {
    margin-bottom: 35px;
}

.quiz-progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

#question-counter {
    color: var(--accent);
}

#score-live {
    color: #ffb703;
    background: rgba(255, 183, 3, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
    border: 1px solid rgba(255, 183, 3, 0.2);
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: var(--card-hover-bg);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 10px;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Question Area */
.question-text {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text-bright);
    margin-bottom: 30px;
    letter-spacing: -0.3px;
}

.options-container {
    display: grid;
    gap: 16px;
    margin-bottom: 30px;
}

/* Options */
.option-btn {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 18px 24px;
    font-size: 0.95rem;
    color: var(--text-main);
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    outline: none;
    line-height: 1.4;
}

.option-prefix {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--card-hover-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.option-btn:hover {
    background: var(--card-hover-bg);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.option-btn:hover .option-prefix {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-bright);
    box-shadow: 0 0 10px var(--primary-glow);
}

.option-btn.keyboard-highlighted {
    background: rgba(0, 242, 254, 0.08) !important;
    border-color: var(--accent) !important;
    transform: translateY(-2px);
    box-shadow: 0 0 15px var(--accent-glow) !important;
}

.option-btn.keyboard-highlighted .option-prefix {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #000 !important;
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Option States: Correct */
.option-btn.correct {
    background: var(--success-bg) !important;
    border-color: var(--success-border) !important;
    color: var(--text-bright);
    pointer-events: none;
    box-shadow: 0 0 15px rgba(0, 230, 118, 0.15);
}

.option-btn.correct .option-prefix {
    background: var(--success) !important;
    border-color: var(--success) !important;
    color: #000 !important;
}

/* Option States: Wrong */
.option-btn.wrong {
    background: var(--error-bg) !important;
    border-color: var(--error-border) !important;
    color: var(--text-bright);
    pointer-events: none;
    box-shadow: 0 0 15px rgba(255, 23, 68, 0.15);
    animation: shake 0.5s ease-in-out;
}

.option-btn.wrong .option-prefix {
    background: var(--error) !important;
    border-color: var(--error) !important;
    color: var(--text-bright) !important;
}

/* Disable unselected after answering */
.option-btn.disabled {
    pointer-events: none;
    opacity: 0.5;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

/* Explanation Panel Style */
.explanation-panel {
    background: rgba(138, 43, 226, 0.05);
    border-left: 4px solid var(--primary);
    padding: 20px;
    border-radius: 0 16px 16px 0;
    margin-top: 25px;
    display: none;
    animation: fadeInDown 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.explanation-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.expl-icon {
    font-size: 1.2rem;
}

.explanation-title h4 {
    color: #bfa3ff;
    font-size: 0.95rem;
    font-weight: 700;
}

#explanation-text {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

@keyframes fadeInDown {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 20px;
    min-height: 54px;
}

@media (max-width: 600px) {
    .question-text {
        font-size: 1.15rem;
    }

    .option-btn {
        padding: 14px 18px;
        font-size: 0.9rem;
    }

    .option-prefix {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
}