/* تنسيق عام */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --info-color: #1abc9c;
    --text-color: #333;
    --text-light: #7f8c8d;
    --white: #ffffff;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* الشريط العلوي */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--secondary-color);
    padding: 0.8rem 2rem;
    color: var(--white);
    width: 100%;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.logo h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}

.main-nav {
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.main-nav a:hover {
    color: var(--primary-color);
}

.main-nav a.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* قائمة اللغة */
.language-dropdown {
    position: relative;
}

.lang-btn {
    background-color: transparent;
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    transition: var(--transition);
}

.lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.language-dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: var(--white);
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1;
    border-radius: 5px;
    overflow: hidden;
}

.language-dropdown-content a {
    color: var(--text-color);
    padding: 0.8rem 1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

.language-dropdown-content a:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.language-dropdown:hover .language-dropdown-content {
    display: block;
}

/* زر تسجيل الخروج */
#logout-button {
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    transition: var(--transition);
}

#logout-button:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
}

/* المحتوى الرئيسي */
.main-content {
    flex: 1;
    padding: 2rem;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

/* شريط البحث */
.search-container {
    margin-bottom: 2.5rem;
}

.search-box {
    display: flex;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    box-shadow: var(--box-shadow);
    border-radius: 50px;
    overflow: hidden;
    background: var(--white);
}

.search-box input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    font-size: 1rem;
    outline: none;
    background: transparent;
}

.search-box button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0 1.8rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box button:hover {
    background-color: #2980b9;
}

.search-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--white);
    color: var(--text-color);
    border: 1px solid #ddd;
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

.filter-btn:hover {
    background-color: var(--light-color);
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* رسالة نتائج البحث */
#search-results-message {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

#search-results-message h3 {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin: 0;
}

#search-results-message h3 span {
    color: var(--primary-color);
    font-weight: 600;
}

#clear-search {
    background-color: var(--light-color);
    color: var(--text-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

#clear-search:hover {
    background-color: #ddd;
}

.hidden {
    display: none !important;
}

/* الصناديق */
.boxes-container {
    margin-bottom: 3rem;
}

.section-title {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.boxes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.box {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border-top: 4px solid var(--primary-color);
    z-index: 1;
}

.box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.box-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: -1;
}

.box-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(52, 152, 219, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.box h3 {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    position: relative;
}

.box h3 a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.box h3 a:hover {
    color: var(--primary-color);
}

.subject-description {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    min-height: 60px;
    line-height: 1.5;
}

.box-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
    padding-top: 0.8rem;
    margin-top: 0.8rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.stats {
    font-size: 0.8rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ألوان خاصة لكل صندوق */
.box.science {
    border-top-color: #2ecc71;
}
.box.science .box-icon {
    color: #2ecc71;
    background-color: rgba(46, 204, 113, 0.1);
}

.box.physics {
    border-top-color: #9b59b6;
}
.box.physics .box-icon {
    color: #9b59b6;
    background-color: rgba(155, 89, 182, 0.1);
}

.box.arabic {
    border-top-color: #e74c3c;
}
.box.arabic .box-icon {
    color: #e74c3c;
    background-color: rgba(231, 76, 60, 0.1);
}

.box.french {
    border-top-color: #3498db;
}
.box.french .box-icon {
    color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

.box.english {
    border-top-color: #f39c12;
}
.box.english .box-icon {
    color: #f39c12;
    background-color: rgba(243, 156, 18, 0.1);
}

.box.info {
    border-top-color: #1abc9c;
}
.box.info .box-icon {
    color: #1abc9c;
    background-color: rgba(26, 188, 156, 0.1);
}

.box.islamic {
    border-top-color: #16a085;
}
.box.islamic .box-icon {
    color: #16a085;
    background-color: rgba(22, 160, 133, 0.1);
}

.box.social {
    border-top-color: #d35400;
}
.box.social .box-icon {
    color: #d35400;
    background-color: rgba(211, 84, 0, 0.1);
}

.box.math {
    border-top-color: #c0392b;
}
.box.math .box-icon {
    color: #c0392b;
    background-color: rgba(192, 57, 43, 0.1);
}

/* تأثيرات البحث */
.box.hidden {
    display: none;
}

.box.highlight {
    animation: highlight 1.5s ease;
    box-shadow: 0 0 0 2px var(--primary-color);
}

@keyframes highlight {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

/* تذييل الصفحة */
.page-footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 3rem 2rem 1.5rem;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-section p, .footer-section li {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    opacity: 0.7;
}

/* تفاعل مع الهواتف */
@media (max-width: 992px) {
    .top-bar {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }
    
    .header-left, .header-right {
        width: 100%;
        justify-content: center;
    }
    
    .main-nav {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .main-content {
        padding: 1.5rem;
    }
    
    .box-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .header-left {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .header-right {
        flex-direction: column;
        gap: 1rem;
    }
    
    .language-dropdown-content {
        left: 0;
        right: auto;
    }
    
    .search-box {
        flex-direction: column;
        border-radius: 10px;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .search-box button {
        padding: 0.8rem;
        justify-content: center;
    }
    
    .boxes-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    #search-results-message {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem;
    }
    
    .box {
        padding: 1.2rem;
    }
    
    .boxes-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}
/* نظام التبويب */
.tab-system {
    margin-top: 2rem;
}

.tab-buttons {
    display: flex;
    border-bottom: 2px solid #eee;
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.8rem 1.5rem;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-light);
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* قائمة المواضيع */
.topics-list {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px dashed #ddd;
}

.topics-list h4 {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.topics-list ul {
    list-style: none;
    margin-bottom: 0.5rem;
}

.topics-list li {
    margin-bottom: 0.3rem;
    position: relative;
    padding-left: 1rem;
}

.topics-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.topics-list li a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.topics-list li a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.view-all {
    display: inline-block;
    color: var(--primary-color);
    font-size: 0.8rem;
    text-decoration: none;
    margin-top: 0.5rem;
    transition: var(--transition);
}

.view-all:hover {
    text-decoration: underline;
    gap: 0.5rem;
}

/* بطاقات الفيديو */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.video-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.video-thumbnail {
    height: 180px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    opacity: 0;
    transition: var(--transition);
}

.video-card:hover .play-icon {
    opacity: 1;
}

.duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
}

.video-info {
    padding: 1rem;
}

.video-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.video-info h3 a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.video-info h3 a:hover {
    color: var(--primary-color);
}

.video-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.video-description {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* بطاقات التمارين */
.exercises-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.exercise-card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    transition: var(--transition);
}

.exercise-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.exercise-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(52, 152, 219, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.exercise-info {
    flex: 1;
}

.exercise-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.exercise-info h3 a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.exercise-info h3 a:hover {
    color: var(--primary-color);
}

.exercise-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.exercise-description {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.start-exercise {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.start-exercise:hover {
    gap: 0.5rem;
    text-decoration: underline;
}
.user-menu a{
    text-decoration: none;
}