/* Global Styles */
:root {
    --primary-color: #2AABEE;
    --secondary-color: #229ED9;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

nav a {
    margin-left: 20px;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2AABEE 0%, #229ED9 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.page-hero {
    padding: 60px 0;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero .subtitle {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid white;
    margin-left: 15px;
}

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

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 20px;
    border-radius: 20px;
    margin-top: 15px;
}

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

/* Sections */
section {
    padding: 80px 0;
    background: var(--bg-white);
}

section:nth-child(even) {
    background: var(--bg-light);
}

h2 {
    font-size: 32px;
    margin-bottom: 20px;
    text-align: center;
}

section p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
    font-size: 18px;
}

/* Grid System */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.card h3 {
    margin-bottom: 15px;
    font-size: 22px;
}

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

/* SEO Content */
.seo-content article, .features-list article, .guide-content .faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.seo-content h3, .features-list h2, .guide-content h2, .faq-item h3 {
    font-size: 24px;
    margin: 30px 0 15px;
    text-align: left;
}

.seo-content p, .features-list p, .guide-content p {
    text-align: left;
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.guide-content ul {
    margin: 20px 0 20px 40px;
    line-height: 1.8;
}

.faq-item {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

/* Footer */
footer {
    background: #222;
    color: #999;
    padding: 40px 0;
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: #ddd;
    margin: 0 10px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .btn-secondary {
        margin-left: 0;
        margin-top: 15px;
        display: block;
    }
    
    .nav-content {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
    }
    
    nav {
        margin-top: 15px;
    }
    
    nav a {
        margin: 0 10px;
    }
}