/* Light mode */
:root {
    --background: #FFFFFF;
    --text: #15141A;
    --text-dim: #5B5B66;
    --border: #E0E0E0;
    --readonly-background: #F5F5F7;
    --focus-color: #0066CC;
    --button-background: #F0F0F0;
    --button-hover: #E0E0E0;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #15141A;
        --text: #FBFBFE;
        --text-dim: #CFCFD8;
        --border: #3A3A3A;
        --readonly-background: #1E1E1E;
        --focus-color: #4A9EFF;
        --button-background: #2A2A2A;
        --button-hover: #3A3A3A;
    }

    html {
        color-scheme: dark;
    }
}

body {
    background-color: var(--background);
    color: var(--text);
    max-width: 800px;
    margin: 1em auto;
}

header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.description {
    text-align: center;
}

.description p {
    margin: 0.5rem 0;
    color: var(--text-dim);
    line-height: 1.5;
}

.description a {
    color: var(--focus-color);
    text-decoration: none;
    font-weight: 500;
}

.description a:hover {
    text-decoration: underline;
}

label {
    display: block;
    margin-bottom: 1.5rem;
    font-weight: 500;
    color: var(--text);
}

input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    margin-top: 8px;
    border: 2px solid var(--border);
    border-radius: 8px;
    background-color: var(--background);
    color: var(--text);
    font-size: 16px;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--focus-color);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

input[type="text"]::placeholder {
    color: var(--text-dim);
}

input[readonly] {
    background-color: var(--readonly-background);
    cursor: default;
}

section {
    margin: 1rem 0;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

h3 {
    margin-top: 0;
}

.example-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.example-btn {
    padding: 8px 16px;
    background-color: var(--button-background);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out;
}

.example-btn:hover {
    background-color: var(--button-hover);
    border-color: var(--focus-color);
}

.example-btn:active {
    transform: translateY(1px);
}

@media (max-width: 600px) {
    .example-buttons {
        flex-direction: column;
    }

    .example-btn {
        width: 100%;
        text-align: left;
    }
}

.github-corner {
    opacity: 0.4;
    transition: opacity 0.2s ease-in-out;

    &:hover, &:focus {
        opacity: 1;
    }
    > svg {
        position: absolute;
        top: 0;
        border: 0;
        right: 0;
        width: 4em;
        height: 4em;
        fill: var(--text);
        color: var(--background);
    }
}