/* Global Styles */
:root {
    --primary-color: #4a6bff;
    --secondary-color: #ff6b6b;
    --accent-color: #6bff9e;
    --dark-color: #2d3748;
    --light-color: #f8f9fa;
    --text-color: #333;
    --gray-color: #718096;
    --border-color: #e2e8f0;
    --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: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

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

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--dark-color);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.btn:hover {
    background-color: #3a5ae8;
    color: white;
    transform: translateY(-2px);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9rem;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

section {
    padding: 80px 0;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

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

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--dark-color);
    font-weight: 500;
}

nav ul li a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #4a6bff 0%, #6b9fff 100%);
    color: white;
    padding: 100px 0;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto 20px;
}

.search-box input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

.search-box button {
    padding: 15px 20px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

.popular-searches {
    font-size: 0.9rem;
}

.popular-searches span {
    opacity: 0.8;
    margin-right: 10px;
}

.popular-searches a {
    color: white;
    margin: 0 5px;
    text-decoration: underline;
    opacity: 0.9;
}

.popular-searches a:hover {
    opacity: 1;
}

/* Categories Section */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.category-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.category-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.category-card h3 {
    margin-bottom: 15px;
}

/* Featured Courses Section */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

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

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

.course-image {
    position: relative;
}

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

.course-content {
    padding: 20px;
}

.course-category {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--gray-color);
    margin-bottom: 10px;
}

.course-card h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.course-meta {
    display: flex;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.course-meta span {
    margin-right: 15px;
}

.course-meta i {
    margin-right: 5px;
}

.course-card p {
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.view-all {
    text-align: center;
    margin-top: 40px;
}

/* Certifications Section */
.certifications {
    background-color: #f1f5f9;
}

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

.certification-card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.certification-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 15px;
    object-fit: cover;
}

.certification-card h3 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.certification-card p {
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* Learning Paths Section */
.path-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.path-card {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.path-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(74, 107, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.path-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.path-card h3 {
    margin-bottom: 10px;
}

.path-card p {
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* Latest Articles Section */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

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

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

.article-content {
    padding: 20px;
}

.article-category {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.article-card h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.article-card p {
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.read-more {
    font-size: 0.9rem;
    font-weight: 500;
}

.read-more:hover {
    text-decoration: underline;
}

/* Newsletter Section */
.newsletter {
    background: linear-gradient(135deg, #4a6bff 0%, #6b9fff 100%);
    color: white;
}

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

.newsletter h2 {
    margin-bottom: 15px;
}

.newsletter p {
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.newsletter-form input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
}

.newsletter-form button {
    padding: 15px 25px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: 500;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 80px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-about h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.footer-about p {
    margin-bottom: 20px;
    opacity: 0.8;
    font-size: 0.9rem;
}

.social-links a {
    display: inline-block;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 10px;
    text-align: center;
    line-height: 36px;
    color: white;
    transition: var(--transition);
}

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

.footer-links h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.footer-links ul li a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.footer-bottom p {
    opacity: 0.7;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.7);
    margin-left: 20px;
}

.footer-bottom-links a:hover {
    color: white;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    nav ul {
        margin-top: 20px;
    }
    
    nav ul li {
        margin: 0 10px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input {
        border-radius: 4px;
        margin-bottom: 10px;
    }
    
    .search-box button {
        border-radius: 4px;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: 4px;
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        border-radius: 4px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-links {
        margin-top: 15px;
    }
    
    .footer-bottom-links a {
        margin: 0 10px;
    }
}

@media (max-width: 576px) {
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 5px 10px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    section {
        padding: 60px 0;
    }
}