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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #000000;
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

header {
    padding: 25px 0;
    border-bottom: 1px solid #222;
    background-color: #000000;
}

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

.logo h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #ffffff 0%, #999999 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.back-link {
    color: #ffffff;
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid #ffffff;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background-color: #ffffff;
    color: #000000;
}

main {
    flex: 1;
}

.hero {
    padding: 80px 0;
}

.hero-content {
    text-align: center;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.hero-content > p {
    font-size: 20px;
    color: #cccccc;
    margin-bottom: 60px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-item {
    background-color: #111111;
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid #222222;
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: #ffffff;
    transform: translateY(-5px);
}

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

.feature-item h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.feature-item p {
    color: #cccccc;
    line-height: 1.6;
    font-size: 16px;
}

.cta-button {
    display: inline-block;
    padding: 18px 50px;
    background-color: #ffffff;
    color: #000000;
    text-decoration: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid #ffffff;
}

.cta-button:hover {
    background-color: #000000;
    color: #ffffff;
    transform: scale(1.05);
}

footer {
    padding: 40px 0;
    border-top: 1px solid #222;
    background-color: #0a0a0a;
}

footer p {
    text-align: center;
    color: #666666;
    font-size: 15px;
    letter-spacing: 0.3px;
}

footer .author {
    color: #ffffff;
    font-weight: 600;
}

.support-section {
    padding: 60px 0;
    margin-top: 80px;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    border-top: 1px solid #222;
    border-bottom: 1px solid #222;
}

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

.support-content h3 {
    font-size: 32px;
    margin-bottom: 15px;
    font-weight: 700;
}

.support-content p {
    font-size: 18px;
    color: #cccccc;
    line-height: 1.6;
    margin-bottom: 30px;
}

.support-button {
    display: inline-block;
    padding: 16px 40px;
    background-color: #ffffff;
    color: #000000;
    text-decoration: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid #ffffff;
}

.support-button:hover {
    background-color: #000000;
    color: #ffffff;
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 36px;
    }
    
    .hero-content > p {
        font-size: 18px;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    header .container {
        flex-direction: column;
        gap: 20px;
    }
}