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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8fafc;
}

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

/* Header Styles */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 60px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Navigation Styles */
nav {
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    display: flex;
    list-style: none;
    justify-content: center;
    flex-wrap: wrap;
    padding: 15px 0;
}

nav li {
    margin: 0 20px;
}

nav a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 10px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

nav a:hover {
    color: #667eea;
    border-bottom-color: #667eea;
}

/* Main Content */
main {
    padding: 40px 0;
}

section {
    margin-bottom: 60px;
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #2d3748;
    text-align: center;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.feature-card {
    text-align: center;
    padding: 30px;
    background: #f7fafc;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2d3748;
}

.feature-card p {
    color: #4a5568;
    line-height: 1.6;
}

/* Feature List */
.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-item {
    background: #f7fafc;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.feature-item h3 {
    margin-bottom: 15px;
    color: #2d3748;
}

.feature-item ul {
    list-style: none;
}

.feature-item li {
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
}

.feature-item li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #48bb78;
    font-weight: bold;
}

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.step {
    text-align: center;
    padding: 30px;
    background: #f7fafc;
    border-radius: 12px;
    position: relative;
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    line-height: 50px;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 20px;
}

.step h3 {
    margin-bottom: 15px;
    color: #2d3748;
}

/* FAQ */
.faq-list {
    space-y: 20px;
}

.faq-item {
    background: #f7fafc;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 4px solid #ed8936;
}

.faq-item h3 {
    color: #2d3748;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.faq-item p {
    color: #4a5568;
    line-height: 1.6;
}

/* Support */
.support-content {
    text-align: center;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.contact-card {
    background: #f7fafc;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.contact-card h3 {
    margin-bottom: 15px;
    color: #2d3748;
}

.contact-card a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.contact-card a:hover {
    text-decoration: underline;
}

.system-requirements {
    background: #edf2f7;
    padding: 25px;
    border-radius: 8px;
    text-align: left;
    margin-top: 30px;
}

.system-requirements h3 {
    margin-bottom: 15px;
    color: #2d3748;
}

.system-requirements ul {
    list-style: none;
}

.system-requirements li {
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
}

.system-requirements li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Policy Content */
.policy-content, .disclaimer-content {
    text-align: left;
}

.policy-content h3, .disclaimer-content h3 {
    margin: 25px 0 15px 0;
    color: #2d3748;
    font-size: 1.3rem;
}

.policy-content ul, .disclaimer-content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.policy-content li, .disclaimer-content li {
    margin: 8px 0;
    line-height: 1.6;
}

.policy-content strong, .disclaimer-content strong {
    color: #2d3748;
}

/* Footer */
footer {
    background: #2d3748;
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
}

footer p {
    margin: 5px 0;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    section {
        padding: 30px 20px;
        margin-bottom: 40px;
    }
    
    section h2 {
        font-size: 2rem;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav li {
        margin: 5px 0;
    }
    
    .feature-grid,
    .feature-list,
    .steps {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    header {
        padding: 40px 0;
    }
    
    section {
        padding: 20px 15px;
    }
}