:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --text-color: #333;
    --heading-color: #212529;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #fff;
    border-bottom: 1px solid #e9ecef;
    padding: 10px 0;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo img {
    height: 32px;
    margin-right: 10px;
}

.nav a {
    color: var(--secondary-color);
    text-decoration: none;
    margin-left: 20px;
}

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

.hero {
    text-align: center;
    padding: 80px 0;
    background-color: #fff;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--heading-color);
}

.hero p {
    font-size: 20px;
    color: var(--secondary-color);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

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

.btn-primary:hover {
    background-color: #0056b3;
}

.btn svg {
    margin-right: 8px;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    margin-top: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.features {
    padding: 80px 0;
    background-color: var(--background-color);
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--heading-color);
}

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

.feature-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card .icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--heading-color);
}

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

.document {
    padding: 60px 20px;
    background-color: #fff;
    margin-top: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.document h1 {
    font-size: 36px;
    margin-bottom: 10px;
    color: var(--heading-color);
}

.updated-date {
    color: var(--secondary-color);
    margin-bottom: 40px;
    font-style: italic;
}

.document h2 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--heading-color);
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 10px;
}

.document h3 {
    font-size: 18px;
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--heading-color);
}

.document ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.document li {
    margin-bottom: 10px;
}

.support-page h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--heading-color);
}

.contact-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-top: 40px;
}

@media (min-width: 768px) {
    .contact-methods {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.faq-section {
    background-color: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.faq-section details {
    margin-bottom: 15px;
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 15px;
}

.faq-section summary {
    font-weight: bold;
    cursor: pointer;
    color: var(--primary-color);
}

.faq-section p {
    margin-top: 10px;
    color: var(--secondary-color);
}

.footer {
    background-color: #343a40;
    color: #fff;
    padding: 40px 0;
    margin-top: 60px;
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    margin: 0 15px;
}

.footer-links a:hover {
    color: #fff;
}

.copyright {
    color: #6c757d;
    font-size: 14px;
}