/* Theme palette constants */
:root {
    /* Light palette */
    --bar-color-light: #ffffff;
    --background-color-light: #f5f5f5;
    --text-color-light: #333333;
    --header-color-light: #007aff;
    --subheader-color-light: #555555;
    --highlight-background-color-light: #fff3e6;
    --highlight-border-color-light: #ff9500;
    --code-background-color-light: #e0e0e0;
    --link-color-light: #007aff;
    --footer-color-light: #777777;

    --control-background-color-light: #8e8e931e;
    --control-border-color-light: #8e8e933d;
    --control-text-color-light: #3c3c43b3;
    --control-active-background-color-light: #ffffff;
    --control-active-text-color-light: #000000d9;
    --control-active-shadow-border-color-light: #0000000a;
    --control-shadow-color-light: #00000026;
    --control-focus-outline-color-light: #0a84ff;

    /* Dark palette */
    --bar-color-dark: #000000;
    --background-color-dark: #1c2526;
    --text-color-dark: #e0e0e0;
    --header-color-dark: #40c4ff;
    --subheader-color-dark: #b0bec5;
    --highlight-background-color-dark: #37474f;
    --highlight-border-color-dark: #ffca28;
    --code-background-color-dark: #455a64;
    --link-color-dark: #40c4ff;
    --footer-color-dark: #90a4ae;

    --control-background-color-dark: #2c2c2e99;
    --control-border-color-dark: #636366cc;
    --control-text-color-dark: #ebebf5b3;
    --control-active-background-color-dark: #ffffff23;
    --control-active-text-color-dark: #ffffffe6;
    --control-active-shadow-border-color-dark: #ffffff2e;
    --control-shadow-color-dark: #00000099;
    --control-focus-outline-color-dark: #0a84ff;

    /* Active theme (defaults to light, overridden below) */
    --bar-color: var(--bar-color-light);
    --background-color: var(--background-color-light);
    --text-color: var(--text-color-light);
    --header-color: var(--header-color-light);
    --subheader-color: var(--subheader-color-light);
    --highlight-background-color: var(--highlight-background-color-light);
    --highlight-border-color: var(--highlight-border-color-light);
    --code-background-color: var(--code-background-color-light);
    --link-color: var(--link-color-light);
    --footer-color: var(--footer-color-light);

    --control-background-color: var(--control-background-color-light);
    --control-border-color: var(--control-border-color-light);
    --control-text-color: var(--control-text-color-light);
    --control-active-background-color: var(--control-active-background-color-light);
    --control-active-text-color: var(--control-active-text-color-light);
    --control-active-shadow-border-color: var(--control-active-shadow-border-color-light);
    --control-shadow-color: var(--control-shadow-color-light);
    --control-focus-outline-color: var(--control-focus-outline-color-light);
}

/* Automatic dark mode when following system preference (no explicit override) */
@media (prefers-color-scheme: dark) {
    :root {
        --bar-color: var(--bar-color-dark);
        --background-color: var(--background-color-dark);
        --text-color: var(--text-color-dark);
        --header-color: var(--header-color-dark);
        --subheader-color: var(--subheader-color-dark);
        --highlight-background-color: var(--highlight-background-color-dark);
        --highlight-border-color: var(--highlight-border-color-dark);
        --code-background-color: var(--code-background-color-dark);
        --link-color: var(--link-color-dark);
        --footer-color: var(--footer-color-dark);

        --control-background-color: var(--control-background-color-dark);
        --control-border-color: var(--control-border-color-dark);
        --control-text-color: var(--control-text-color-dark);
        --control-active-background-color: var(--control-active-background-color-dark);
        --control-active-text-color: var(--control-active-text-color-dark);
        --control-active-shadow-border-color: var(--control-active-shadow-border-color-dark);
        --control-shadow-color: var(--control-shadow-color-dark);
        --control-focus-outline-color: var(--control-focus-outline-color-dark);
    }
}

/* Explicit overrides when user chooses Light or Dark */
html.theme-light {
    --bar-color: var(--bar-color-light);
    --background-color: var(--background-color-light);
    --text-color: var(--text-color-light);
    --header-color: var(--header-color-light);
    --subheader-color: var(--subheader-color-light);
    --highlight-background-color: var(--highlight-background-color-light);
    --highlight-border-color: var(--highlight-border-color-light);
    --code-background-color: var(--code-background-color-light);
    --link-color: var(--link-color-light);
    --footer-color: var(--footer-color-light);

    --control-background-color: var(--control-background-color-light);
    --control-border-color: var(--control-border-color-light);
    --control-text-color: var(--control-text-color-light);
    --control-active-background-color: var(--control-active-background-color-light);
    --control-active-text-color: var(--control-active-text-color-light);
    --control-active-shadow-border-color: var(--control-active-shadow-border-color-light);
    --control-shadow-color: var(--control-shadow-color-light);
    --control-focus-outline-color: var(--control-focus-outline-color-light);
}

html.theme-dark {
    --bar-color: var(--bar-color-dark);
    --background-color: var(--background-color-dark);
    --text-color: var(--text-color-dark);
    --header-color: var(--header-color-dark);
    --subheader-color: var(--subheader-color-dark);
    --highlight-background-color: var(--highlight-background-color-dark);
    --highlight-border-color: var(--highlight-border-color-dark);
    --code-background-color: var(--code-background-color-dark);
    --link-color: var(--link-color-dark);
    --footer-color: var(--footer-color-dark);

    --control-background-color: var(--control-background-color-dark);
    --control-border-color: var(--control-border-color-dark);
    --control-text-color: var(--control-text-color-dark);
    --control-active-background-color: var(--control-active-background-color-dark);
    --control-active-text-color: var(--control-active-text-color-dark);
    --control-active-shadow-border-color: var(--control-active-shadow-border-color-dark);
    --control-shadow-color: var(--control-shadow-color-dark);
    --control-focus-outline-color: var(--control-focus-outline-color-dark);
}

body {
    font-family: -apple-system, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    margin: 0 auto;
    background-color: var(--bar-color);
    color: var(--text-color);
}

header {
    text-align: center;
    padding: 20px;
}

.hamburger-menu-wrapper {
    position: fixed;
    top: 16px;
    left: 20px;
    z-index: 1000;
    font-size: 12px;
    font-family: -apple-system, system-ui, sans-serif;
}

.hamburger-menu-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: var(--control-background-color);
    border: 1px solid var(--control-border-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--control-text-color);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.hamburger-menu-button:hover {
    background-color: var(--control-active-background-color);
}

.hamburger-menu-button:focus-visible {
    outline: 2px solid var(--control-focus-outline-color);
    outline-offset: 2px;
}

.hamburger-icon {
    display: block;
    width: 16px;
    height: 2px;
    position: relative;
    background-color: currentColor;
    border-radius: 1px;
    transition: opacity 0.2s ease;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
    transition: transform 0.2s ease;
}

.hamburger-icon::before {
    top: -5px;
}

.hamburger-icon::after {
    bottom: -5px;
}

.hamburger-menu-button[aria-expanded="true"] .hamburger-icon {
    background-color: transparent;
}

.hamburger-menu-button[aria-expanded="true"] .hamburger-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.hamburger-menu-button[aria-expanded="true"] .hamburger-icon::after {
    bottom: 0;
    transform: rotate(-45deg);
}

.hamburger-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: max-content;
    padding: 8px;
    border-radius: 12px;
    background: var(--control-background-color);
    border: 1px solid var(--control-border-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px var(--control-shadow-color);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.hamburger-menu-wrapper[data-open="true"] .hamburger-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.hamburger-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.hamburger-menu-list li {
    margin: 0;
}

.hamburger-menu-list a {
    display: block;
    padding: 8px 12px;
    color: var(--control-text-color);
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.hamburger-menu-list a:hover {
    background-color: var(--control-active-background-color);
    color: var(--control-active-text-color);
    text-decoration: none;
}

.hamburger-menu-list a:focus-visible {
    outline: 2px solid var(--control-focus-outline-color);
    outline-offset: 2px;
}

.color-scheme-toggle-wrapper {
    position: fixed;
    top: 16px;
    right: 20px;
    z-index: 1000;
    font-size: 12px;
    font-family: -apple-system, system-ui, sans-serif;
}

.color-scheme-toggle {
    display: inline-flex;
    align-items: center;
    padding: 2px;
    gap: 2px;
    border-radius: 999px;
    background: var(--control-background-color);
    border: 1px solid var(--control-border-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--control-text-color);
}

.color-scheme-toggle-segment {
    border: none;
    background: transparent;
    padding: 3px 10px;
    margin: 0;
    cursor: pointer;
    font: inherit;
    color: inherit;
    letter-spacing: 0.02em;
    border-radius: 999px;
}

.color-scheme-toggle-segment.is-active {
    background-color: var(--control-active-background-color);
    box-shadow: 0 0 0 1px var(--control-active-shadow-border-color), 0 4px 10px var(--control-shadow-color);
    color: var(--control-active-text-color);
}

.color-scheme-toggle-segment:focus-visible {
    outline: 2px solid var(--control-focus-outline-color);
    outline-offset: 2px;
    border-radius: 2px;
}

main {
    padding: 20px;
    background-color: var(--background-color);
}

article {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    font-size: 2.5em;
    color: var(--header-color);
    margin-bottom: 10px;
}

h2 {
    font-size: 1.8em;
    color: var(--text-color);
    margin-top: 30px;
    border-bottom: 2px solid var(--header-color);
    padding-bottom: 5px;
}

h3 {
    font-size: 1.4em;
    color: var(--subheader-color);
    margin-top: 20px;
}

p, ul {
    margin: 10px 0;
}

ul {
    padding-left: 20px;
}

code {
    background-color: var(--code-background-color);
    padding: 2px 5px;
    border-radius: 3px;
    font-family: 'SF Mono', 'Courier New', monospace;
}

.highlight {
    background-color: var(--highlight-background-color);
    padding: 10px;
    border-left: 4px solid var(--highlight-border-color);
    margin: 10px 0;
}

a {
    color: var(--link-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.screenshot {
    width: 100%;
    max-width: 800px;
    margin: 20px 0;
}

.badge {
    width: 245px;
    height: 82px;
    vertical-align: middle;
    object-fit: contain;
}

footer {
    text-align: center;
    font-size: 0.9em;
    padding: 20px;
    background-color: var(--bar-color);
    color: var(--footer-color);
}