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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #f8f9fa;
}

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

/* Header */
header {
    background: linear-gradient(135deg, #1a237e 0%, #283593 50%, #3949ab 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 15px rgba(26, 35, 126, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.logo img {
    width: 45px;
    height: 45px;
    object-fit: contain;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px;
    transition: transform 0.3s;
}

.logo:hover img {
    transform: scale(1.05);
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
    font-weight: 500;
}

.nav-links a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a237e 0%, #283593 50%, #3949ab 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: white;
    color: #1a237e;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    margin: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 35, 126, 0.3);
    background: #f5f5f5;
}

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

.btn-secondary:hover {
    background: white;
    color: #1a237e;
}

/* Sections */
section {
    padding: 3rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a237e;
    font-weight: 600;
}

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

.card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(26, 35, 126, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 3px solid #3949ab;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(26, 35, 126, 0.2);
    border-top-color: #1a237e;
}

.card h3 {
    color: #1a237e;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card ul {
    list-style: none;
    padding-left: 0;
}

.card ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #3949ab;
    font-weight: bold;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(26, 35, 126, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(26, 35, 126, 0.15);
}

.feature-item h3 {
    color: #1a237e;
    margin: 1rem 0;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
    color: #ffffff;
    font-weight: 600;
}

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

.footer-section ul li {
    margin: 0.5rem 0;
}

.footer-section a {
    color: #e3f2fd;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #ffffff;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: #e3f2fd;
}

/* Content Pages */
.content-page {
    background: white;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 900px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(26, 35, 126, 0.1);
    border-top: 3px solid #3949ab;
}

.content-page h1 {
    color: #1a237e;
    margin-bottom: 1rem;
    font-weight: 600;
}

.content-page h2 {
    color: #283593;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.content-page h3 {
    color: #3949ab;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.content-page ul, .content-page ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.content-page a {
    color: #3949ab;
    text-decoration: none;
    font-weight: 500;
}

.content-page a:hover {
    color: #1a237e;
    text-decoration: underline;
}

/* Download Section */
.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.download-card {
    background: #f9f9f9;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid #e0e0e0;
    transition: border-color 0.3s, transform 0.3s;
}

.download-card:hover {
    transform: translateY(-3px);
}

.download-card:hover {
    border-color: #3949ab;
    box-shadow: 0 2px 10px rgba(26, 35, 126, 0.1);
}

.download-card h3 {
    color: #1a237e;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* News/Blog */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.news-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(26, 35, 126, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 3px solid #3949ab;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(26, 35, 126, 0.15);
    border-top-color: #1a237e;
}

.news-item-content {
    padding: 1.5rem;
}

.news-item h3 {
    color: #1a237e;
    margin-bottom: 0.5rem;
}

.news-item h3 a {
    color: #1a237e;
    text-decoration: none;
}

.news-item h3 a:hover {
    color: #3949ab;
    text-decoration: underline;
}

.news-item .date {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}