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

:root {
    /* Colors from app theme */
    --color-primary: #106AF3;
    --color-primary-light: #4A96F7;
    --color-primary-dark: #6EB1FB;
    --color-success: #00CD50;
    --color-basic-dark: #122332;
    --color-basic-medium: #2A3947;
    --color-basic-light: #414F5B;
    --color-basic-lighter: #7B8794;
    --color-basic-lightest: #D0D3D6;
    --color-background: #E8FFFC;
    --color-white: #FFFFFF;
    --color-text-primary: #122332;
    --color-text-secondary: #7B8794;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(18, 35, 50, 0.1);
    --shadow-md: 0 4px 12px rgba(18, 35, 50, 0.15);
    --shadow-lg: 0 8px 24px rgba(18, 35, 50, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header and Navigation */
.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: rgba(16, 106, 243, 0.08);
}

.nav-link.active {
    color: var(--color-primary);
    background-color: rgba(16, 106, 243, 0.08);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) var(--spacing-md);
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: var(--color-basic-lightest);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Sections */
section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-image {
    width: 100%;
    height: 200px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Benefits Section */
.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.benefit-item {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.benefit-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.benefit-item p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Content Pages */
.content-page {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 400px);
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.last-updated {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 16px;
}

.content-section {
    margin-bottom: var(--spacing-xl);
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.content-section h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.content-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    color: var(--color-text-primary);
}

.content-section ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.content-section li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
    color: var(--color-text-primary);
}

/* Footer */
.footer {
    background-color: var(--color-basic-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xxl);
}

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

.footer-section h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    color: var(--color-basic-lightest);
    line-height: 1.6;
}

.footer-links {
    list-style: none;
    margin-left: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-basic-lightest);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-basic-medium);
    color: var(--color-basic-lightest);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .nav-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav-links {
        width: 100%;
        justify-content: center;
    }
    
    .features-grid,
    .benefits-list {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-xl) var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .page-title {
        font-size: 28px;
    }
    
    .content-section {
        padding: var(--spacing-md);
    }
    
    .content-section h2 {
        font-size: 22px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background-color: var(--color-primary);
    color: var(--color-white);
}