* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    font-size: clamp(10px, 3vw, 20px);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #66ead8 0%, #4ba293 50%, #93abfb 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    min-height: 100vh;
}

.main-container {
    background: white;
    padding: 1rem;
    border-radius: .75rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 70vw;
    animation: slideUp 0.5s ease;
    display: flex;
    flex-direction: row;
}
.main-container>div {
    margin-bottom: 1.5rem;
    width: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1 {
    text-align: center;
    margin-bottom: 15px;
    color: #333333;
    font-size: 1.75rem;
    font-weight: 600;
}

.main-container p {
    color: #666666;
    margin-bottom: 30px;
    font-size: 1.1em;
    text-align: center;
    font-weight: 500;
}

.role-select {
    width: 100%;
    max-width: 300px;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}
button:hover {
    background-color: #45a049;
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

@media (max-width: 900px) {
    .main-container {
        max-width: 85vw;
    }
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
        height: auto;
        min-height: 100vh;
    }

    .main-container {
        flex-direction: column;
        width: 95%;
        max-width: 100%;
        padding: 1.5rem 1rem;
    }

    .main-container > div {
        width: 100%;
        margin-bottom: 2rem;
    }

    h1 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .main-container p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0.75rem;
    }
    
    .main-container {
        padding: 1.25rem 0.75rem;
        border-radius: 10px;
    }

    h1 {
        font-size: 1.2rem;
        margin-bottom: 0.75rem;
    }

    .main-container p {
        font-size: 0.85rem;
        margin-bottom: 1rem;
    }

    .role-select {
        max-width: 100%;
        font-size: 0.9rem;
    }
    button {
        font-size: 0.9rem;
        padding: 8px 16px;
    }
}