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

:root {
    --primary: #0079d3;
    --primary-light: #00a8ff;
    --secondary: #ff4444;
    --dark: #1a1a1b;
    --light: #f8f9fa;
    --gray: #6c757d;
    --border: #e0e0e0;
    --radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: #ffffff;
}

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

/* Header */
header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #0060a8;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-disabled {
    background: var(--gray);
    color: white;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Features */
.features {
    padding: 80px 0;
    background: var(--light);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature h3 {
    margin-bottom: 0.5rem;
}

/* Extensions Section */
.extensions {
    padding: 80px 0;
}

.extensions h2,
.how-it-works h2,
.privacy h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

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

.extension-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all 0.3s;
}

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

.extension-card.coming-soon {
    opacity: 0.8;
}

.extension-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.extension-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.extension-icon.reddit {
    background: #ff4500;
}

.extension-icon.facebook {
    background: #1877f2;
}

.extension-icon.twitter {
    background: #1da1f2;
}

.extension-icon.linkedin {
    background: #0077b5;
}

.status-badge {
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.extension-card.available .status-badge {
    background: #d4edda;
    color: #155724;
}

.extension-card.coming-soon .status-badge {
    background: #fff3cd;
    color: #856404;
}

.extension-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.extension-subtitle {
    color: var(--gray);
    margin-bottom: 1rem;
}

.extension-card ul {
    list-style: none;
    margin: 1rem 0;
}

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

.extension-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* How it Works */
.how-it-works {
    padding: 80px 0;
    background: var(--light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

/* Privacy Section */
.privacy {
    padding: 80px 0;
}

.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.privacy-item {
    background: var(--light);
    padding: 2rem;
    border-radius: var(--radius);
}

.privacy-item h3 {
    margin-bottom: 1rem;
    color: var(--primary);
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 40px 0 20px;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.footer-links h4 {
    margin-bottom: 1rem;
}

.footer-links a {
    display: block;
    color: #ccc;
    text-decoration: none;
    padding: 0.25rem 0;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #ccc;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .extension-grid {
        grid-template-columns: 1fr;
    }
}