:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --text-color: #333;
    --gray-light: #f5f5f5;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f9f9f9;
    color: var(--text-color);
    line-height: 1.6;
}

/* تحسينات الشريط العلوي */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

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

    .logo h1 {
        color: var(--primary-color);
        font-size: 1.8rem;
        margin-right: 10px;
    }

.nav-links {
    display: flex;
    list-style: none;
}

    .nav-links li {
        margin: 0 15px;
        margin-top: 10px;
    }

    .nav-links a {
        text-decoration: none;
        color: var(--dark-color);
        font-weight: 500;
        transition: var(--transition);
        position: relative;
    }

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            right: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: var(--transition);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

.auth-buttons {
    display: flex;
}

.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    font-size: 0.9rem;
}

.btn-login {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    margin-left: 10px;
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* قائمة الهاتف المحمول */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

    .menu-toggle span {
        width: 25px;
        height: 3px;
        background-color: var(--dark-color);
        margin: 3px 0;
        transition: 0.3s;
    }

/* قسم البطل المحسن */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 5rem 5%;
    text-align: center;
    position: relative;
    overflow: hidden;
}

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 100%;
        height: 100%;
        background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,192C1248,192,1344,128,1392,96L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
        background-size: cover;
        background-position: center;
    }

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

    .hero-content h2 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .hero-content p {
        font-size: 1.2rem;
        margin: 0 auto 2rem;
        max-width: 600px;
    }

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 2rem;
}

.hero-btn {
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
    border: none;
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* قسم الإحصائيات - تم تحسينه */
.stats-section {
    padding: 4rem 5%;
    background-color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-item {
    padding: 1.5rem;
    border-radius: var(--border-radius);
    background-color: var(--gray-light);
    transition: var(--transition);
}

    .stat-item:hover {
        transform: translateY(-5px);
        box-shadow: var(--box-shadow);
    }

    .stat-item h3 {
        font-size: 2.5rem;
        color: var(--primary-color);
        margin-bottom: 0.5rem;
    }

    .stat-item p {
        color: var(--dark-color);
        font-weight: 500;
    }

/* قسم الميزات */
.features {
    padding: 5rem 5%;
    background-color: var(--gray-light);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

    .section-title h2 {
        font-size: 2rem;
        color: var(--secondary-color);
        margin-bottom: 1rem;
        position: relative;
        display: inline-block;
    }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            right: 50%;
            transform: translateX(50%);
            width: 80px;
            height: 3px;
            background-color: var(--primary-color);
        }

    .section-title p {
        color: #666;
        max-width: 700px;
        margin: 0 auto;
    }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: var(--box-shadow);
    }

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

/* قسم الأقسام التعليمية */
.categories {
    padding: 4rem 5%;
    background-color: white;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.category-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem 1rem;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid #eee;
}

    .category-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--box-shadow);
        background-color: var(--primary-color);
        color: white;
    }

.category-icon {
    font-size: 2rem;
    margin-bottom: 0.8rem;
}

/* قسم الدورات */
.courses {
    padding: 4rem 5%;
    background-color: var(--gray-light);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    text-align: center;
    margin-bottom: 35px;
}

    .section-title h2 {
        display: inline-block;
    }

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

    .view-all:hover {
        color: var(--secondary-color);
    }

    .view-all i {
        margin-right: 5px;
        transition: var(--transition);
    }

    .view-all:hover i {
        transform: translateX(-5px);
    }

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.course-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: var(--transition);
}

    .course-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    }

.course-img {
    height: 180px;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
    position: relative;
}

.course-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: var(--accent-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.course-content {
    padding: 1.5rem;
}

.course-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: block;
    font-weight: 500;
}

.course-title {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.course-instructor {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

    .course-instructor i {
        margin-left: 5px;
    }

.course-meta {
    display: flex;
    justify-content: space-between;
    color: #888;
    font-size: 0.85rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

/* قسم الأدوار - تم تحسينه */
.roles {
    padding: 5rem 5%;
    background-color: white;
}

.roles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.role-card {
    background-color: var(--gray-light);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

    .role-card::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 100%;
        height: 5px;
        background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    }

    .role-card:hover {
        transform: translateY(-10px);
        box-shadow: var(--box-shadow);
    }

.role-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.role-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.role-card p {
    margin-bottom: 1.5rem;
    color: #666;
}

/* قسم الاشتراك */
.newsletter {
    padding: 5rem 5%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 2rem auto 0;
}

    .newsletter-form input {
        flex: 1;
        padding: 15px;
        border: none;
        border-radius: var(--border-radius) 0 0 var(--border-radius);
        font-size: 1rem;
    }

    .newsletter-form button {
        background-color: var(--accent-color);
        color: white;
        border: none;
        padding: 0 25px;
        border-radius: 0 var(--border-radius) var(--border-radius) 0;
        cursor: pointer;
        font-weight: 500;
        transition: var(--transition);
    }

        .newsletter-form button:hover {
            background-color: #c0392b;
        }

/* التذييل - تم تحسينه */
footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 3rem 5% 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.footer-column h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    position: relative;
    display: inline-block;
}

    .footer-column h3::after {
        content: '';
        position: absolute;
        bottom: -8px;
        right: 50%;
        transform: translateX(50%);
        width: 40px;
        height: 2px;
        background-color: var(--primary-color);
    }

.footer-links {
    list-style: none;
}

    .footer-links li {
        margin-bottom: 0.8rem;
    }

    .footer-links a {
        color: #ccc;
        text-decoration: none;
        transition: var(--transition);
    }

        .footer-links a:hover {
            color: white;
            padding-right: 5px;
        }

.social-links {
    display: flex;
    margin-top: 1rem;
    justify-content: center;
}

    .social-links a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background-color: rgba(255,255,255,0.1);
        border-radius: 50%;
        margin: 0 5px;
        color: white;
        text-decoration: none;
        transition: var(--transition);
    }

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

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #ccc;
    font-size: 0.9rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* تصميم متجاوب - تم تحسينه */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        padding: 2rem 0;
    }

        .nav-links.active {
            display: flex;
        }

        .nav-links li {
            margin: 0;
            text-align: center;
            padding: 0.8rem 0;
        }

    .menu-toggle {
        display: flex;
    }

    .auth-buttons {
        display: none;
    }

    .mobile-auth {
        display: flex;
        justify-content: center;
        gap: 10px;
        margin-top: 1rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-btn {
        width: 80%;
        margin-bottom: 10px;
    }

    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .newsletter-form {
        flex-direction: column;
    }

        .newsletter-form input {
            border-radius: var(--border-radius);
            margin-bottom: 10px;
        }

        .newsletter-form button {
            border-radius: var(--border-radius);
            padding: 12px;
        }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat-item {
        padding: 1rem;
    }

        .stat-item h3 {
            font-size: 2rem;
        }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .roles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .navbar {
        padding: 1rem;
    }

    .hero {
        padding: 3rem 1rem;
    }

    .hero-content h2 {
        font-size: 1.8rem;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .view-all {
        margin-top: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}
/* نظهر الأزرار جوة الموبايل */
.nav-links .mobile-auth {
    display: none; /* افتراضيًا مخفي */
}

/* في الشاشات الصغيرة يظهروا */
@media (max-width: 992px) {
    .nav-links .mobile-auth {
        display: flex !important;
        justify-content: center;
        gap: 10px;
        margin-top: 1rem;
    }
}

.hero-content h2 {
    font-size: 3rem; /* حجم خط أكبر */
    margin-bottom: 1.5rem;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero-content p {
    font-size: 1.4rem;
    margin: 0 auto 3rem;
    max-width: 700px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }
}