/* تنسيقات خاصة بصفحة المواد */

/* قسم العنوان والبحث */
.subjects-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: var(--spacing-2xl);
}

.subjects-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
}

.subjects-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.subjects-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease;
}

.subjects-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.8s ease 0.2s both;
}

/* شريط البحث */
.search-section {
    max-width: 700px;
    margin: 0 auto;
}

.search-bar {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    padding-left: 60px;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    font-family: var(--font-family);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.search-input:focus {
    outline: none;
    background: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.search-btn {
    position: absolute;
    left: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.search-btn:hover {
    background: rgba(108, 52, 131, 0.1);
}

/* قسم التخصصات */
.specializations-section {
    padding: var(--spacing-2xl) 0;
}

.specializations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.specialization-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.specialization-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: var(--transition);
}

.specialization-card:hover::before {
    transform: scaleX(1);
}

.specialization-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.specialization-icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    transition: var(--transition);
}

.specialization-card:hover .specialization-icon {
    transform: scale(1.1);
    color: var(--primary-light);
}

.specialization-card h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.specialization-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.specialization-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.stat-item svg {
    color: var(--primary-color);
}

.explore-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    font-family: var(--font-family);
    box-shadow: 0 4px 15px rgba(108, 52, 131, 0.3);
}

.explore-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 52, 131, 0.4);
}

/* قسم المواد المفصل */
.subjects-detail {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.subjects-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.back-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    font-weight: 500;
}

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

.specialization-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

/* مسار التعلم */
.learning-path {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
}

.path-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.path-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    position: relative;
}

.path-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.path-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
    position: relative;
    z-index: 2;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.step-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.step-subjects {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* شبكة المواد - التصميم المحسن */
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* بطاقة المادة - التصميم المحسن */
.subject-card {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    margin-bottom: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.subject-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.subject-header {
    padding: 25px 25px 15px;
    position: relative;
    overflow: hidden;
}

.subject-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.subject-icon-container {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.subject-card:hover .subject-icon-container {
    transform: scale(1.05) rotate(5deg);
}

.subject-icon {
    font-size: 32px;
    color: white;
}

.subject-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: all 0.3s ease;
}

.subject-card:hover .subject-title {
    color: var(--primary-color);
}

.subject-department {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    box-shadow: 0 3px 10px rgba(108, 52, 131, 0.2);
}

.subject-content {
    padding: 0 25px 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.subject-description {
    color: #7f8c8d;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.subject-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #eee;
    margin-top: auto;
}

.subject-date {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #95a5a6;
    font-size: 0.85rem;
}

.subject-code {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* زر عرض الكتب */
.btn-view-books {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #6c3483, #8e44ad);
    color: white;
    padding: 12px 20px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(108, 52, 131, 0.3);
    border: none;
    cursor: pointer;
    width: 100%;
    margin-top: 15px;
    font-family: var(--font-family);
}

.btn-view-books:hover {
    background: linear-gradient(135deg, #5b2c6f, #6c3483);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 52, 131, 0.4);
}

.btn-view-books:active {
    transform: translateY(0);
}

/* رسالة عدم وجود نتائج */
.no-books {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.no-books-icon {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.no-books h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.no-books p {
    color: #7f8c8d;
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 12px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(108, 52, 131, 0.3);
    font-family: var(--font-family);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 52, 131, 0.4);
}

/* قسم الإحصائيات */
.stats-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    text-align: center;
}

.stats-section .section-title {
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.stat-icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.stat-label {
    font-size: var(--font-size-lg);
    font-weight: 500;
    opacity: 0.9;
}

/* الرسوم المتحركة */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes progressAnimation {
    from {
        width: 0;
    }
    to {
        width: var(--progress-width);
    }
}

/* الاستجابة للشاشات */
@media (max-width: 1024px) {
    .specializations-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-xl);
    }
    
    .subjects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 25px;
    }
    
    .path-timeline {
        padding-left: var(--spacing-lg);
    }
    
    .path-timeline::before {
        left: 15px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
}

@media (max-width: 768px) {
    .subjects-hero {
        padding: var(--spacing-xl) 0;
    }
    
    .subjects-title {
        font-size: var(--font-size-2xl);
    }
    
    .subjects-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .specializations-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .specialization-card {
        padding: var(--spacing-xl);
    }
    
    .specialization-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .subjects-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .learning-path {
        padding: var(--spacing-xl);
    }
    
    .subjects-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .subject-header {
        padding: 20px 20px 15px;
    }
    
    .subject-content {
        padding: 0 20px 20px;
    }
    
    .subject-title {
        font-size: 1.2rem;
    }
    
    .subject-icon-container {
        width: 60px;
        height: 60px;
    }
    
    .subject-icon {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .search-input {
        padding: var(--spacing-md) var(--spacing-lg);
        padding-left: 50px;
        font-size: var(--font-size-base);
    }
    
    .specialization-card {
        padding: var(--spacing-lg);
    }
    
    .subject-header,
    .subject-content {
        padding: var(--spacing-lg);
    }
    
    .subject-actions {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .path-step {
        flex-direction: column;
        text-align: center;
    }
    
    .path-timeline::before {
        display: none;
    }
    
    .subjects-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

/* تحسينات الوضع الليلي */
/* تم إزالة وظيفة الوضع الليلي */