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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 600px;
    width: 100%;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo {
    font-size: 3em;
    font-weight: bold;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.2em;
    margin-bottom: 30px;
}

.giris-btn {
    display: inline-block;
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    padding: 18px 60px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 40px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(238, 90, 36, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.giris-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(238, 90, 36, 0.6);
    background: linear-gradient(45deg, #ee5a24, #ff6b6b);
}

.seo-content {
    text-align: left;
    margin-top: 30px;
    line-height: 1.6;
    color: #444;
}

.seo-content h2 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.5em;
    border-bottom: 2px solid #ff6b6b;
    padding-bottom: 5px;
}

.seo-content h3 {
    color: #555;
    margin: 20px 0 10px 0;
    font-size: 1.2em;
}

.seo-content p {
    margin-bottom: 15px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.feature {
    background: rgba(255, 255, 255, 0.7);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2em;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
    }
    
    .logo {
        font-size: 2.5em;
    }
    
    .giris-btn {
        padding: 15px 40px;
        font-size: 1.2em;
    }
}