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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 16px;
}

.nav-links a:hover {
    color: #667eea;
}

/* Content */
.container {
    max-width: 900px;
    margin: 120px auto 60px;
    padding: 0 20px;
}

.header {
    text-align: center;
    margin-bottom: 60px;
}

.header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header p {
    color: #666;
    font-size: 18px;
}

.content-card {
    background: white;
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
}

.content-card h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #333;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
}

.content-card h3 {
    font-size: 22px;
    margin-top: 30px;
    margin-bottom: 15px;
    color: #444;
}

.content-card p {
    margin-bottom: 15px;
    color: #555;
    font-size: 16px;
}

.content-card ul {
    margin-left: 30px;
    margin-bottom: 20px;
}

.content-card li {
    margin-bottom: 10px;
    color: #555;
}

.highlight {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border-left: 4px solid #667eea;
}

.contact-info {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    margin-top: 30px;
    text-align: center;
}

.contact-info a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid white;
}

.contact-info h3 {
    color: white;
    margin-bottom: 15px;
}

/* Support Page */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.support-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s;
}

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

.support-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.support-card h3 {
    margin-top: 0;
    margin-bottom: 10px;
}

.support-link {
    display: inline-block;
    margin-top: 15px;
    color: #667eea;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid #667eea;
}

.help-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid #667eea;
}

.help-section h3 {
    margin-top: 0;
    color: #667eea;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 15px 20px;
    }

    .logo {
        font-size: 24px;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        display: none;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .container {
        margin-top: 100px;
    }

    .header h1 {
        font-size: 36px;
    }

    .content-card {
        padding: 30px 20px;
    }

    .content-card h2 {
        font-size: 24px;
    }

    .content-card h3 {
        font-size: 20px;
    }

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