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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* Header Styles */
.header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 113, 206, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav {
    padding: 1rem 0;
}

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

.logo {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #0071CE;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #ffc220;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #0071CE;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%);
    padding: 120px 0 80px;
    margin-top: 70px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #0071CE;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #0071CE;
    color: white;
}

.btn-primary:hover {
    background: #005bb5;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 113, 206, 0.3);
}

.btn-secondary {
    background: #ffc220;
    color: #333;
}

.btn-secondary:hover {
    background: #e6ae1d;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 194, 32, 0.3);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 113, 206, 0.2);
}

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

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #0071CE;
    margin-bottom: 1rem;
}

.features-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: #ffffff;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 113, 206, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 113, 206, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 1.5rem;
    color: #0071CE;
    margin-bottom: 1rem;
}

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

.feature-link {
    color: #ffc220;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.feature-link:hover {
    color: #e6ae1d;
}

/* Articles Section */
.articles {
    padding: 80px 0;
    background: #f8f9ff;
}

.articles h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #0071CE;
    margin-bottom: 3rem;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 113, 206, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 113, 206, 0.2);
}

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    margin-bottom: 1rem;
}

.article-content h3 a {
    color: #0071CE;
    text-decoration: none;
    font-size: 1.3rem;
    transition: color 0.3s ease;
}

.article-content h3 a:hover {
    color: #005bb5;
}

.article-content p {
    color: #666;
    margin-bottom: 1.5rem;
}

.read-more {
    color: #ffc220;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #e6ae1d;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background: #ffffff;
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #0071CE;
    margin-bottom: 3rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.faq-item {
    background: #f8f9ff;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #0071CE;
}

.faq-item h3 {
    color: #0071CE;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.faq-item p {
    color: #666;
}

/* Footer */
.footer {
    background: #0071CE;
    color: white;
    padding: 50px 0 20px;
}

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

.footer-section h4 {
    color: #ffc220;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ffc220;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 1rem;
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .features-grid,
    .articles-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 1rem;
    }

    .features,
    .articles,
    .faq {
        padding: 60px 0;
    }
}

/* Article Page Styles */
.article-header {
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%);
    padding: 120px 0 60px;
    margin-top: 70px;
}

.article-header h1 {
    font-size: 2.5rem;
    color: #0071CE;
    margin-bottom: 1rem;
    text-align: center;
}

.article-meta {
    text-align: center;
    color: #666;
    margin-bottom: 2rem;
}

.article-content-wrapper {
    padding: 60px 0;
    background: #ffffff;
}

.article-content-wrapper .container {
    max-width: 800px;
}

.article-content-wrapper h2 {
    color: #0071CE;
    margin: 2rem 0 1rem;
    font-size: 1.8rem;
}

.article-content-wrapper h3 {
    color: #0071CE;
    margin: 1.5rem 0 1rem;
    font-size: 1.4rem;
}

.article-content-wrapper p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.article-content-wrapper ul,
.article-content-wrapper ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content-wrapper li {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.article-content-wrapper strong {
    color: #0071CE;
}

.breadcrumb {
    background: #f8f9ff;
    padding: 1rem 0;
    margin-top: 70px;
}

.breadcrumb ul {
    list-style: none;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.breadcrumb a {
    color: #0071CE;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #005bb5;
}

.breadcrumb span {
    color: #666;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #0071CE;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #005bb5;
    transform: translateY(-3px);
}