/* حماية قوية من النسخ والاختيار */
* {
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    user-select: none !important;
    -webkit-touch-callout: none !important;
    -webkit-tap-highlight-color: transparent !important;
    -moz-user-select: -moz-none !important;
    -khtml-user-select: none !important;
}

input[type="text"], 
input[type="email"], 
textarea {
    -webkit-user-select: text !important;
    -moz-user-select: text !important;
    -ms-user-select: text !important;
    user-select: text !important;
}

body, html {
    -webkit-touch-callout: none !important;
    -webkit-user-select: none !important;
    -khtml-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

/* منع السحب */
img, a, div, p, span, h1, h2, h3, h4, h5, h6 {
    -webkit-user-drag: none !important;
    -khtml-user-drag: none !important;
    -moz-user-drag: none !important;
    -o-user-drag: none !important;
}

/* منع التحديد البصري */
::selection {
    background: transparent !important;
    color: inherit !important;
}

::-moz-selection {
    background: transparent !important;
    color: inherit !important;
}

/* أنماط صفحة الاختبار */
.exam-header-info {
    display: flex;
    align-items: center;
    gap: 30px;
}

.exam-progress {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.exam-progress span {
    font-weight: 600;
    color: var(--text);
}

.progress-bar {
    width: 200px;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    width: 3%;
    transition: width 0.3s ease;
}

.timer {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--soft-bg);
    padding: 8px 15px;
    border-radius: 50px;
    font-weight: 600;
    color: var(--primary-color);
}

.timer i {
    font-size: 1.1rem;
}

.exam-container {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

.exam-content {
    display: flex;
    gap: 30px;
}

.question-container {
    flex: 3;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

#question-type {
    background-color: var(--soft-bg);
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.question-number {
    font-weight: 600;
    color: var(--gray-color);
}

.question-text {
    font-size: 1.3rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text);
    font-weight: 500;
}

.options-container {
    margin-bottom: 40px;
}

.option {
    margin-bottom: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 0;
    transition: var(--transition);
}

.option:hover {
    border-color: var(--primary-color);
}

.option input[type="radio"] {
    display: none;
}

.option input[type="radio"]:checked + label {
    background-color: var(--soft-bg);
}

.option label {
    display: block;
    padding: 18px 20px;
    cursor: pointer;
    border-radius: 10px;
    transition: var(--transition);
}

.option label:hover {
    background-color: var(--soft-bg);
}

/* أنماط إضافية للخيارات */
.option-label {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    width: 100%;
}

.option-letter {
    background-color: var(--soft-bg);
    color: var(--primary-color);
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    flex-shrink: 0;
    font-size: 1rem;
}

.option input[type="radio"]:checked + label .option-letter {
    background-color: var(--primary-color);
    color: white;
}

.option-text {
    flex: 1;
    padding-top: 3px;
    font-size: 1.1rem;
    color: var(--text);
}

.question-navigation {
    display: flex;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.btn-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--soft-bg);
    color: var(--primary-color);
    border: none;
    padding: 12px 25px;
    border-radius: 10px;
    font-family: 'Cairo', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-nav:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-nav.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-nav.btn-primary:hover {
    background-color: var(--secondary-color);
}

.btn-nav.btn-finish {
    background-color: var(--danger-color);
    color: white;
}

.btn-nav.btn-finish:hover {
    background-color: #c0392b;
}

.sidebar {
    flex: 1;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.questions-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: 25px;
}

.question-index {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--soft-bg);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

/* علامة للأسئلة التي لا تحتوي على إجابة صحيحة (مصنفة كـ unscored) */
.question-index.unscored {
    background-color: rgba(255,255,255,0.04);
    border-color: var(--border-color);
    color: var(--muted);
    opacity: 0.9;
}
.question-index.unscored:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.question-index:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.question-index.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.question-index.answered {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 5px;
}

.legend-color.answered {
    background-color: var(--success-color);
}

.legend-color.current {
    background-color: var(--primary-color);
}

.legend-color.not-answered {
    background-color: var(--soft-bg);
    border: 2px solid var(--border-color);
}

/* نافذة التأكيد */
.modal-overlay {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    display: none;
}

.modal {
    background-color: var(--card-bg);
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background-color: var(--soft-bg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-header i {
    color: var(--warning-color);
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--gray-color);
    cursor: pointer;
    line-height: 1;
}

.modal-body {
    padding: 25px;
}

.modal-body p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.modal-stats {
    font-weight: 600;
    color: var(--primary-color);
}

.modal-footer {
    padding: 20px 25px;
    background-color: var(--soft-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

.btn-modal {
    padding: 12px 25px;
    border-radius: 10px;
    border: none;
    font-family: 'Cairo', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-cancel {
    background-color: #f0f2ff;
    color: var(--primary-color);
}

.btn-cancel:hover {
    background-color: #e4e7ff;
}

.btn-confirm {
    background-color: var(--danger-color);
    color: white;
}

.btn-confirm:hover {
    background-color: #c0392b;
}

/* شارة نتيجة محلية في نافذة إدخال الاسم */
.exam-result-summary {
    margin-top: 12px;
    text-align: right;
    font-weight: 700;
}
.exam-result-summary.pass {
    color: var(--success-color, #22c55e);
}
.exam-result-summary.fail {
    color: var(--danger-color, #ef4444);
}

/* تصميم متجاوب */
@media (max-width: 992px) {
    .exam-content {
        flex-direction: column;
    }
    
    .exam-header-info {
        display: none;
    }
}

@media (max-width: 768px) {
    .question-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn-nav {
        justify-content: center;
    }
    
    .questions-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}