:root {
    --input-bg-color: #e0e0e0;
    --input-focus-border: #6c63ff;
    --input-placeholder-color: #888;
    --button-hover-background: #5750d9;
    --button-hover-text: white;
}

/* General Reset */

body {
    display: grid;
    min-height: 100vh;
}

.container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 20px;
}

.form {
    display: grid;
    grid-template-rows: repeat(4, auto);
    gap: 15px;
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 10px;
}

.input-group {
    display: grid;
    grid-template-rows: auto auto;
    gap: 10px;
    margin-top: 10px;
}

.input-group label {
    font-size: 14px;
    color: #555;
}

.input-group input {
    padding: 10px;
    border: 1px solid var(--input-bg-color);
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.input-group input:focus {
    border-color: var(--input-focus-border);
    outline: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

button {
    margin-top: 40px;
    padding: 10px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: var(--button-hover-background);
    color: var(--button-hover-text);
}

#btn-register {
    background: var(--input-bg-color);
    color: #333;
    margin-top: -10px; /* Adjust spacing between buttons */
}

#btn-register:hover {
    background: #cacaca;
}