:root {
    --bg-primary: #f7f9fc;
    --bg-secondary: #ffffff;
    --bg-accent: #eef2ff;
    --text-primary: #333644;
    --text-secondary: #5a5e76;
    --text-light: #8f94ab;
    --accent-primary: #5F67ED;
    --accent-secondary: #6E40C9;
    --border-color: #e6e9f4;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 6px 16px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
}

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

a:hover {
    color: var(--accent-secondary);
}

ul {
    list-style-type: none;
}

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

/* Header */
header {
    background-color: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
}

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

.logo {
    height: 40px;
    width: 200px;
}

.logo-svg {
    height: 100%;
    width: 100%;
}

nav ul {
    display: flex;
    gap: 30px;
}

nav a {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-primary);
    transition: var(--transition);
}

nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
}

.menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--text-primary);
    transition: var(--transition);
}

/* Main content */
main {
    margin-top: 70px;
    padding: 40px 0;
}

/* Hero Section */
.hero {
    padding: 60px 0;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-graphic {
    flex: 1;
    max-width: 500px;
}

.hero-svg {
    width: 100%;
    height: auto;
}

h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 90%;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.cta-button.large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Directory Section */
.directory {
    padding: 40px 0;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-primary);
}

.site-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.site-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.site-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.site-card.premium {
    border-top: 4px solid var(--accent-primary);
}

.site-header {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.site-rank {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    background-color: var(--bg-accent);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stars {
    color: #FFB400;
    letter-spacing: -2px;
}

.score {
    font-weight: 600;
    color: var(--text-secondary);
    margin-left: 5px;
}

.site-body {
    padding: 20px;
    flex-grow: 1;
}

.site-body h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.site-desc {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.site-features {
    margin-top: 15px;
}

.site-features li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.check-icon {
    width: 24px;
    height: 24px;
    margin-right: 10px;
}

.site-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.site-button {
    display: block;
    background-color: var(--accent-primary);
    color: white;
    padding: 12px 0;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
}

.site-button:hover {
    background-color: var(--accent-secondary);
    color: white;
}

/* Comparison Section */
.comparison {
    padding: 40px 0;
    background-color: var(--bg-accent);
    margin: 40px 0;
    border-radius: var(--radius-lg);
}

.table-container {
    overflow-x: auto;
    margin-top: 30px;
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table th,
.comparison-table td {
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.platform {
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
}

.table-button {
    display: inline-block;
    background-color: var(--accent-primary);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

.table-button:hover {
    background-color: var(--accent-secondary);
    color: white;
}

/* Info Section */
.info-section {
    padding: 60px 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.info-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.info-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.info-card p {
    color: var(--text-secondary);
}

.cta-container {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.cta-container p {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--text-primary);
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo-svg {
    width: 160px;
    height: 40px;
    margin-bottom: 10px;
}

.footer-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.copyright {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Responsive Design */
@media screen and (max-width: 992px) {
    h1 {
        font-size: 2.4rem;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-graphic {
        margin-top: 30px;
    }
}

@media screen and (max-width: 768px) {
    header .container {
        position: relative;
    }
    
    nav {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--bg-secondary);
        box-shadow: var(--shadow-md);
        transform: translateY(-200%);
        transition: var(--transition);
        z-index: 99;
    }
    
    nav.active {
        transform: translateY(0);
    }
    
    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 20px;
    }
    
    nav li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    
    nav li:last-child {
        border-bottom: none;
    }
    
    nav a {
        display: block;
        padding: 15px 0;
    }
    
    nav a::after {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .site-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    footer .container {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
    }
    
    .footer-logo {
        align-items: center;
    }
}

/* JavaScript Class for Menu Toggle */
.nav-active {
    transform: translateY(0);
}