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

:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-color: #764ba2;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #ffffff;
    --bg-light: #f5f5f5;
    --border-color: #e0e0e0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 18px;
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 0.9;
}

/* Hero Section */
.hero {
    padding: 60px 0;
    text-align: center;
    background: var(--bg-light);
}

.hero-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: transparent;
    background: linear-gradient(135deg, #3b3dbf 0%, #6c47c9 45%, #c243ce 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #f8f9fa;
    border-color: var(--primary-color);
}

/* Features Section */
.features {
    padding: 60px 0;
    background: var(--bg-color);
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 24px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s;
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

/* How It Works Section */
.how-it-works {
    padding: 60px 0;
    background: var(--bg-light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.step {
    text-align: center;
}

.step h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.step p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

.note {
    background: #e7f3ff;
    border-left: 4px solid #2196f3;
    padding: 16px 20px;
    border-radius: 4px;
    max-width: 800px;
    margin: 0 auto;
}

.note p {
    font-size: 14px;
    color: #0d47a1;
    margin: 0;
    line-height: 1.6;
}

/* Install Section */
.install {
    padding: 60px 0;
    background: var(--bg-color);
}

.install-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.install-content p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 24px;
}

/* Footer */
footer {
    background: var(--text-color);
    color: white;
    padding: 40px 0;
    text-align: center;
}

footer p {
    margin-bottom: 8px;
    font-size: 14px;
    opacity: 0.9;
}

.disclaimer {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 12px;
}

.footer-links {
    margin-top: 24px;
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.9;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 24px;
    }

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

    .section-title {
        font-size: 20px;
    }

    .nav-links {
        gap: 16px;
        font-size: 13px;
    }

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

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

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}