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

:root {
    --primary-color: #ff0000;
    --dark-bg: #0f0f0f;
    --secondary-bg: #212121;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --border-color: #303030;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* Header */
.header {
    background-color: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 4px;
}

.logo-section h1 {
    font-size: 24px;
    font-weight: 600;
}

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

.nav a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.1) 0%, rgba(255, 0, 0, 0.05) 100%);
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: #cc0000;
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--secondary-bg);
}

.features h2 {
    font-size: 36px;
    margin-bottom: 50px;
    text-align: center;
}

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

.feature-card {
    background-color: var(--dark-bg);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

/* Install Section */
.install {
    padding: 80px 0;
}

.install h2 {
    font-size: 36px;
    margin-bottom: 40px;
    text-align: center;
}

.install-steps {
    max-width: 600px;
    margin: 0 auto;
    list-style: none;
    counter-reset: step-counter;
}

.install-steps li {
    counter-increment: step-counter;
    margin-bottom: 20px;
    padding-left: 50px;
    position: relative;
    font-size: 16px;
}

.install-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

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

.install-steps a:hover {
    text-decoration: underline;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--secondary-bg);
}

.about h2 {
    font-size: 36px;
    margin-bottom: 30px;
    text-align: center;
}

.about p {
    max-width: 700px;
    margin: 0 auto 20px;
    color: var(--text-secondary);
    text-align: center;
}

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

.about a:hover {
    text-decoration: underline;
}

/* Privacy Content */
.privacy-content {
    padding: 60px 0;
}

.privacy-content h2 {
    font-size: 36px;
    margin-bottom: 10px;
}

.last-updated {
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 14px;
}

.privacy-content h3 {
    font-size: 22px;
    margin-top: 40px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.privacy-content p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.privacy-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.privacy-content li {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

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

.privacy-content a:hover {
    text-decoration: underline;
}

.back-link {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.back-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.back-link a:hover {
    text-decoration: underline;
}

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

.footer p {
    margin-bottom: 10px;
}

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

.footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        gap: 20px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .features h2,
    .install h2,
    .about h2,
    .privacy-content h2 {
        font-size: 28px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .install-steps li {
        padding-left: 60px;
    }

    .install-steps li::before {
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .logo-section h1 {
        font-size: 20px;
    }

    .nav {
        gap: 15px;
        font-size: 14px;
    }

    .hero {
        padding: 40px 0;
    }

    .hero h2 {
        font-size: 24px;
    }

    .hero p {
        font-size: 14px;
    }

    .btn {
        padding: 10px 24px;
        font-size: 14px;
    }

    .features,
    .install,
    .about {
        padding: 40px 0;
    }

    .features h2,
    .install h2,
    .about h2,
    .privacy-content h2 {
        font-size: 22px;
    }
}