/* Reset & base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    font-family: 'Segoe UI', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: #ffffff;
    padding: 1rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

/* Container that adapts */
.container {
    width: 100%;
    max-width: 400px;
    background: #ffffff;
    padding: 2rem;
    border: 1px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Logo */
.logo {
    display: block;
    margin: 0 auto 1.5rem;
    width: 300px;
}

.aiko {
    display: block;
    margin: 0 auto 1.5rem;
    width: 100px;
}

/* Form inputs */
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
}

/* Button */
input[type="submit"] {
    width: 100%;
    padding: 0.75rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

input[type="submit"]:hover {
    background-color: #0056b3;
}

/* Checkbox and label */
.checkbox-container {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-container input {
    margin-right: 0.5rem;
}

/* Responsive text size */
h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

/* Media query for small phones */
@media (max-width: 360px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 1rem;
    }

    .logo {
        width: 60px;
    }
}