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

:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --accent: #f72585;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --success: #4cc9f0;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
    font-size: 16px;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
    color: var(--dark);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary);
    margin: 10px auto;
    border-radius: 2px;
}

/* Header Styles */
.top-bar {
    background-color: var(--primary);
    color: white;
    padding: 8px 0;
    font-size: 14px;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.welcome-text i {
    margin-right: 8px;
}

.navbar {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    margin-right: 10px;
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-item {
    position: relative;
    margin: 0 15px;
}

.nav-link {
    padding: 10px 0;
    font-weight: 500;
    color: var(--dark);
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-link i {
    margin-left: 5px;
    font-size: 12px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    border-bottom: 1px solid var(--light-gray);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 42px;
    margin-bottom: 10px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 10px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
}

.stat-text {
    font-size: 14px;
    opacity: 0.8;
}

/* Online Tests Section */
.online-tests {
    padding: 80px 0;
}

.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.test-category {
    background: white;
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.test-category:hover {
    transform: translateY(-5px);
}

.category-title {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--primary);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-gray);
}

.test-list li {
    margin-bottom: 12px;
}

.test-list a {
    display: flex;
    align-items: center;
    padding: 8px 0;
    transition: var(--transition);
}

.test-list a:hover {
    color: var(--primary);
}

.test-list i {
    margin-right: 10px;
    color: var(--primary);
    font-size: 14px;
}

/* Popular Exams Section */
.popular-exams {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.exams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.exam-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.exam-card:hover {
    transform: translateY(-5px);
}

.exam-icon {
    width: 70px;
    height: 70px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

.exam-card h3 {
    margin-bottom: 10px;
    font-size: 20px;
}

.exam-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.exam-link {
    color: var(--primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.exam-link i {
    margin-left: 5px;
    transition: var(--transition);
}

.exam-link:hover i {
    transform: translateX(5px);
}

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header Styles 
        header {
            background: linear-gradient(135deg, #1a6dcc 0%, #0d4d9c 100%);
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .logo h1 {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        
        .logo span {
            color: #ffcc00;
        }
        
        .logo-icon {
            font-size: 2.5rem;
            color: #ffcc00;
        }
        
        .user-info {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: #ffcc00;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #0d4d9c;*/
        }
        
        /* Main Content */
        .main-content {
            display: flex;
            margin-top: 30px;
            gap: 30px;
        }
        
        /* Categories Section */
        .categories {
            flex: 1;
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            padding: 25px;
            height: fit-content;
        }
        
        .categories h2 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #0d4d9c;
            border-bottom: 2px solid #ffcc00;
            padding-bottom: 10px;
        }
        
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        
        .category-card {
            background-color: #f8f9fa;
            border-radius: 10px;
            padding: 20px 15px;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
            text-decoration: none;
            display: block;
            color: inherit;
        }
        
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
            border-color: #1a6dcc;
            background-color: #eef5ff;
        }
        
        .category-card.active {
            border-color: #1a6dcc;
            background-color: #eef5ff;
        }
        
        .category-icon {
            font-size: 2.2rem;
            color: #1a6dcc;
            margin-bottom: 10px;
        }
        
        .category-card h3 {
            font-size: 1.2rem;
            color: #0d4d9c;
            margin-bottom: 5px;
        }
        
        .category-card p {
            color: #666;
            font-size: 0.9rem;
        }
        
        /* Info Section */
        .info-section {
            flex: 2;
            background-color: white;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
        }
        
        .info-icon {
            font-size: 4rem;
            color: #1a6dcc;
            margin-bottom: 20px;
        }
        
        .info-title {
            font-size: 1.8rem;
            color: #0d4d9c;
            margin-bottom: 15px;
        }
        
        .info-text {
            color: #666;
            font-size: 1.1rem;
            line-height: 1.6;
            max-width: 500px;
            margin-bottom: 25px;
        }
        
        .btn {
            padding: 12px 25px;
            border-radius: 8px;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
            background-color: #1a6dcc;
            color: white;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn:hover {
            background-color: #0d4d9c;
            transform: translateY(-2px);
        }
        
        /* Footer */
        footer {
            margin-top: 40px;
            padding: 20px 0;
            text-align: center;
            color: #666;
            font-size: 0.9rem;
            border-top: 1px solid #eee;
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .main-content {
                flex-direction: column;
            }
            
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 15px;
            }
            
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 576px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
        }

/* Features Section */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

.feature-card p {
    color: var(--gray);
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.large-btn {
    padding: 15px 30px;
    font-size: 18px;
}

/* Footer */
.footer {
    background-color: var(--dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-section p {
    margin-bottom: 20px;
    opacity: 0.8;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    opacity: 1;
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

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

.contact-info p {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-info i {
    margin-right: 10px;
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 30px 30px;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-item {
        margin: 0 0 15px;
        width: 100%;
    }
    
    .nav-link {
        padding: 10px 0;
        width: 100%;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        width: 100%;
        margin-top: 10px;
        display: none;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-buttons, .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .test-category, .exam-card, .feature-card {
        padding: 20px 15px;
    }
}