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

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

.container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 60px 40px;
    max-width: 900px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.header {
    text-align: center;
    margin-bottom: 50px;
}

.logo {
    font-size: 48px;
    margin-bottom: 10px;
}

h1 {
    color: #333;
    font-size: 32px;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 16px;
}

.role-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.role-card-link {
    text-decoration: none;
    color: inherit;
}

.role-card {
    background: white;
    border: 3px solid #e0e0e0;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.role-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.role-card.admin {
    border-color: #667eea;
}

.role-card.admin:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.role-card.user {
    border-color: #f093fb;
}

.role-card.user:hover {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.role-icon {
    font-size: 64px;
    margin-bottom: 20px;
    display: block;
}

.role-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
}

.role-description {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
}

.role-card:hover .role-description,
.role-card:hover .role-title {
    color: white;
}

.footer {
    text-align: center;
    margin-top: 40px;
    color: #999;
    font-size: 14px;
}

@media (max-width: 768px) {
    .container {
        padding: 40px 20px;
    }

    h1 {
        font-size: 24px;
    }

    .role-container {
        grid-template-columns: 1fr;
    }
}