:root {
    /* Win95 "strawberry latte" tokens */

    /* Desktop (rarely used, but handy for full-page demos) */
    --desktop: #d7a5b7;

    /* Page + surfaces */
    --bg: #f4ece7; /* page behind windows */
    --bg-pattern: #efe5df;

    /* Background texture (dither/checker overlay) */
    --dither-ink: rgba(59, 46, 44, 0.22);
    --dither-opacity: 0.18;
    --surface: #e9dcd5; /* window face */
    --surface-alt: #fff7f2; /* milk highlight */

    /* Text */
    --fg: #2a1f1d;
    --muted: #6a5550;

    /* 3D border system */
    --border: #3b2e2c;
    --border-light: #fff7f2;
    --border-dark: #8e7670;

    /* Girly coffee accents */
    --primary: #e56aa6; /* strawberry */
    --primary-light: #f08dbe; /* strawberry milk */
    --primary-dark: #c84d86; /* rose */

    --secondary: #b69cff; /* lilac */
    --secondary-light: #d7c8ff;
    --secondary-dark: #8f78d6;

    --accent-brown: #b88a68; /* latte */
    --accent-brown-light: #d4a574;
    --accent-brown-dark: #7a5245;

    /* Title bar (Win95-ish window chrome) */
    --titlebar-a: #d85b9b;
    --titlebar-b: #7a3e8e;
    --titlebar-fg: #fff7f2;

    /* Links */
    --link: #c84d86;
    --link-visited: #6f2f80;
    --link-active: #b5173d;

    /* Keep existing names as aliases */
    --accent-pink: var(--primary);
    --accent-lavender: var(--secondary);

    /* Status colors (slightly softened) */
    --success: #2e8b57;
    --error: #b3261e;
    --warning: #b7791f;
    --info: #2b6cb0;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;

    /* Borders */
    --border-width: 2px;
    --border-style: solid;

    /* Type */
    --font-mono: "Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
        "Courier New", monospace;
    --line-height: 1.35;

    /* Shadows */
    --shadow-sm: 1px 1px 0;
    --shadow-md: 2px 2px 0;
    --shadow-lg: 3px 3px 0;
    --shadow-color: rgba(0, 0, 0, 0.22);
    --shadow-box: 2px 2px 0 rgba(0, 0, 0, 0.12);
    --shadow-button: 1px 1px 0 rgba(0, 0, 0, 0.18);

    --highlight: rgba(255, 247, 242, 0.9);
    --lowlight: rgba(59, 46, 44, 0.55);

    --content-max-width: 1000px;
}

[data-theme="dark"] {
    /* Espresso-night variant */
    --bg: #2d2523;
    --bg-pattern: #241e1c;

    --dither-ink: rgba(255, 247, 242, 0.12);
    --dither-opacity: 0.14;
    --surface: #3b312f;
    --surface-alt: #463a37;

    --fg: #f9efea;
    --muted: #cbb8b1;

    --border: #f1e6e0;
    --border-light: #6e5b57;
    --border-dark: #120d0c;

    --primary: #f06aa6;
    --primary-light: #ff97c8;
    --primary-dark: #d94b8e;

    --secondary: #b69cff;
    --secondary-light: #d7c8ff;
    --secondary-dark: #8f78d6;

    --accent-brown: #a57353;
    --accent-brown-light: #c9936a;
    --accent-brown-dark: #6b4a34;

    --titlebar-a: #b04a80;
    --titlebar-b: #4f245e;
    --titlebar-fg: #fff7f2;

    --link: #ff97c8;
    --link-visited: #d7c8ff;
    --link-active: #fff0f7;

    /* Status colors (brightened for dark mode) */
    --success: #4caf50;
    --error: #ff6b6b;
    --warning: #ffa500;
    --info: #64b5f6;

    --shadow-color: rgba(0, 0, 0, 0.75);
    --highlight: rgba(255, 255, 255, 0.2);
    --lowlight: rgba(0, 0, 0, 0.85);
}

@font-face {
    font-family: "Mono";
    src: url("../assets/fonts/Maple.woff2") format("woff2");
    font-display: swap;
    font-weight: normal;
}

@supports (font-synthesis: none) {
    @font-face {
        font-family: "Mono";
        src: url("../assets/fonts/Maple.woff2") format("woff2");
        font-synthesis: none;
    }
}

/* base */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 24" width="32" height="24"><path d="M1 3h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v2H9v1h1v2h1v2h-1v1H8v-1H7v-2H6v-2H5v1H4v1H3v1H1" fill="%23ff69b4" stroke="%23b19cd9" stroke-width="0.5"/><path d="M2 5h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v1h1v1H8v2h1v2h1v2H8v-2H7v-2H6v-1H5v1H4v1H3v1H2" fill="white" stroke="%23ff69b4" stroke-width="0.5"/></svg>')
        0 0, auto !important;
}

::selection {
    background: var(--primary);
    color: var(--surface-alt);
}

:focus-visible {
    outline: 1px dotted var(--fg);
    outline-offset: 2px;
}

html {
    font-size: 16px;
    background-color: var(--bg);
    position: relative;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: 100vh;
}

html::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(
            45deg,
            var(--dither-ink) 25%,
            transparent 25%,
            transparent 75%,
            var(--dither-ink) 75%
        ),
        linear-gradient(
            45deg,
            var(--dither-ink) 25%,
            transparent 25%,
            transparent 75%,
            var(--dither-ink) 75%
        ), url("../assets/img/bg.png");
    background-size: 10px 10px, 10px 10px, auto;
    background-position: 0 0, 5px 5px, 0 0;
    background-repeat: repeat;
    opacity: var(--dither-opacity);
    z-index: -1;
    pointer-events: none;
}

body {
    background: transparent;
    color: var(--fg);
    line-height: var(--line-height);
    padding: var(--space-md);
    padding-top: calc(var(--space-md) + 3rem);
    max-width: var(--content-max-width);
    margin: 0 auto;
    font-family: var(--font-mono);
    scrollbar-color: var(--accent-lavender) var(--bg);
    scrollbar-width: thin;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* webkit scrollbar (chrome, safari, edge) */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
    border: 2px solid var(--border);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-lavender);
    border: 2px outset var(--border-light);
    box-shadow: inset 1px 1px 0 var(--highlight), inset -1px -1px 0 var(--lowlight);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-pink);
}

.div-centered {
    max-width: var(--content-max-width);
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 4.5rem);
    text-align: justify;
}

/* typography */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-mono);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: var(--space-md);
    color: var(--fg);
}

h1 {
    font-size: 2rem;
    margin-bottom: var(--space-lg);
    background: linear-gradient(90deg, var(--titlebar-a), var(--titlebar-b));
}

/* "Titlebar" headings: retro, but still cute */
h1,
h2,
h3 {
    padding: 0.55rem 0.75rem;
    border: var(--border-width) solid var(--border);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark);
    color: var(--titlebar-fg);
    text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.25);
}

h2 {
    font-size: 1.5rem;
    background: linear-gradient(90deg, var(--titlebar-a), var(--titlebar-b));
}

h3 {
    font-size: 1.25rem;
    background: linear-gradient(90deg, var(--accent-brown-dark), var(--accent-brown));
}

h4 {
    font-size: 1.1rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.9rem;
}

p {
    margin-bottom: var(--space-sm);
}

a {
    color: var(--link);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
}

a:visited {
    color: var(--link-visited);
}

a:hover {
    background: var(--primary-light);
    color: var(--fg);
}

a:active {
    color: var(--link-active);
}

small {
    color: var(--muted);
    font-size: 0.875rem;
}

blockquote {
    border-left: 3px solid var(--accent-brown);
    padding-left: var(--space-md);
    margin: var(--space-md) 0;
    font-style: italic;
    color: var(--muted);
}

/* lists */

ul,
ol {
    margin: var(--space-sm) 0;
    padding-left: var(--space-lg);
}

li {
    margin-bottom: var(--space-xs);
}

/* tables */

table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-md) 0;
    border: var(--border-width) solid var(--border);
    background: var(--surface);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark), 3px 3px 0
        rgba(0, 0, 0, 0.12);
}

thead {
    background: linear-gradient(90deg, var(--titlebar-a), var(--titlebar-b));
    color: var(--titlebar-fg);
    font-weight: 700;
}

th,
td {
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--border-dark);
    text-align: left;
}

tbody tr:nth-child(odd) {
    background: var(--surface-alt);
}

tbody tr:nth-child(even) {
    background: var(--surface);
}

tbody tr:hover {
    background: color-mix(in srgb, var(--primary) 12%, transparent);
}

/* code */

code {
    background: var(--surface-alt);
    padding: 0.125rem 0.5rem;
    border: 1px solid var(--border-dark);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    line-height: 1.4;
}

pre {
    background: var(--surface-alt);
    border: var(--border-width) solid var(--border);
    padding: var(--space-md);
    margin: var(--space-md) 0;
    overflow-x: auto;
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark), 3px 3px 0
        rgba(0, 0, 0, 0.12);
    line-height: 1.5;
}

pre code {
    background: transparent;
    border: none;
    padding: 0;
    font-size: 0.875rem;
    line-height: inherit;
}

/* Prism.js syntax highlighting */

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
    color: var(--muted);
    font-style: italic;
}

.token.punctuation {
    color: var(--fg);
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol {
    color: var(--secondary-dark);
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin {
    color: var(--accent-brown-dark);
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
    color: var(--primary-dark);
}

.token.atrule,
.token.attr-value,
.token.keyword {
    color: var(--primary-dark);
    font-weight: 700;
}

.token.function,
.token.class-name {
    color: var(--primary);
    font-weight: 700;
}

.token.regex,
.token.important,
.token.variable {
    color: var(--accent-brown);
}

.token.important,
.token.bold {
    font-weight: bold;
}

.token.italic {
    font-style: italic;
}

/* Dark theme variants */

[data-theme="dark"] .token.keyword,
[data-theme="dark"] .token.operator {
    color: var(--primary-light);
}

[data-theme="dark"] .token.string,
[data-theme="dark"] .token.selector {
    color: var(--accent-brown-light);
}

[data-theme="dark"] .token.number,
[data-theme="dark"] .token.constant {
    color: var(--secondary-light);
}

/* dividers */

hr {
    border: none;
    border-top: 2px solid var(--border-dark);
    margin: var(--space-lg) 0;
    height: 0;
}

/* layout */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--border);
    padding: 0.45rem var(--space-md);
    margin-bottom: 0;
    background: linear-gradient(90deg, var(--titlebar-a), var(--titlebar-b));
    color: var(--titlebar-fg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark), 0 2px 0
        rgba(0, 0, 0, 0.08);
}

header h1 {
    display: none;
}

header::before {
    content: "";
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    background-image: url("../assets/img/coffee.svg");
    background-size: 1.1rem 1.1rem;
    background-position: center;
    background-repeat: no-repeat;
    margin-right: 0.5rem;
    background-color: var(--surface);
    border: 2px outset var(--border-light);
    box-shadow: inset 1px 1px 0 var(--highlight), inset -1px -1px 0 var(--lowlight);
}

nav {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    align-items: center;
    margin: 0;
    flex: 1;
}

nav a {
    font-size: 0.85rem;
    padding: 0.1rem 0.15rem;
    color: var(--titlebar-fg);
    text-decoration: none;
    border-bottom: 2px solid color-mix(in srgb, var(--titlebar-fg) 55%, transparent);
}

nav a:visited {
    color: var(--titlebar-fg);
}

nav a:hover {
    background: color-mix(in srgb, var(--surface-alt) 18%, transparent);
    border-bottom-color: var(--primary-light);
}

nav a:active {
    background: color-mix(in srgb, var(--surface-alt) 28%, transparent);
    border-bottom-color: var(--primary);
}

main {
    flex: 1;
}

article {
    border: var(--border-width) solid var(--border);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    background: var(--surface);
    box-shadow:
        inset 1px 1px 0 var(--border-light),
        inset -1px -1px 0 var(--border-dark),
        4px 4px 0 rgba(0, 0, 0, 0.14),
        5px 5px 0 rgba(0, 0, 0, 0.06);
}

article > :last-child {
    margin-bottom: 0;
}

article h2 {
    margin: calc(var(--space-md) * -1) calc(var(--space-md) * -1) var(--space-md);
    border-left: none;
    border-right: none;
    border-top: none;
    border-bottom: var(--border-width) solid var(--border);
    box-shadow: none;
    text-shadow: none;
}

footer {
    border: var(--border-width) solid var(--border);
    padding: var(--space-md);
    text-align: center;
    background: var(--surface);
    font-size: 0.875rem;
    box-shadow:
        inset 1px 1px 0 var(--border-light),
        inset -1px -1px 0 var(--border-dark),
        4px 4px 0 rgba(0, 0, 0, 0.14),
        5px 5px 0 rgba(0, 0, 0, 0.06);
}

footer > :last-child {
    margin-bottom: 0;
}

/* components */

/* forms */

input,
textarea,
select {
    font-family: var(--font-mono);
    padding: var(--space-xs) var(--space-sm);
    border: 2px inset var(--border-light);
    background: var(--surface-alt);
    color: var(--fg);
    font-size: 0.875rem;
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight);
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
    max-width: 100%;
}

input::placeholder,
textarea::placeholder,
select::placeholder {
    color: var(--muted);
    opacity: 0.8;
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder,
[data-theme="dark"] select::placeholder {
    color: #b8b0a0;
    opacity: 1;
}

input:focus,
textarea:focus,
select:focus {
    outline: 1px dotted var(--fg);
    outline-offset: 2px;
    border-color: var(--primary);
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight), 0 0 0 2px
        var(--primary);
}

input:invalid,
textarea:invalid {
    border-color: var(--error);
}

input:invalid:focus,
textarea:invalid:focus {
    box-shadow: inset 1px 1px 0 var(--highlight), inset -1px -1px 0 var(--lowlight), 0 0 0 2px
        var(--error);
}

textarea {
    resize: vertical;
    min-height: 4rem;
    width: 100%;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232a1f1d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 1.2em;
    padding-right: 2.5rem;
}

[data-theme="dark"] select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f9efea' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

option {
    background: var(--bg);
    color: var(--fg);
    padding: var(--space-sm);
}

option:checked {
    background: linear-gradient(var(--primary), var(--primary));
    color: var(--bg);
}

input[type="checkbox"],
input[type="radio"] {
    appearance: none;
    width: 1.3rem;
    height: 1.3rem;
    min-width: 1.3rem;
    min-height: 1.3rem;
    padding: 0;
    cursor: pointer;
    margin: 0 0.5rem 0 0;
    vertical-align: middle;
    border: 2px inset var(--border-light);
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight);
    background: var(--surface-alt);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: normal;
}

input[type="radio"] {
    border-radius: 50%;
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
    background: var(--primary);
    border-style: inset;
}

label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: bold;
    color: var(--fg);
}

input[type="checkbox"] + label,
input[type="radio"] + label {
    display: inline;
    margin: 0;
    font-weight: normal;
}

/* toggle switches */

input[type="checkbox"].toggle {
    appearance: none;
    width: 2.8rem;
    height: 1.6rem;
    padding: 0;
    margin: 0 0.5rem 0 0;
    border: 2px outset var(--border-light);
    background: var(--muted);
    cursor: pointer;
    position: relative;
    vertical-align: middle;
    box-shadow: inset 1px 1px 0 rgba(255, 255, 255, 0.3), inset -1px -1px 0 rgba(0, 0, 0, 0.6);
    transition: background 0.2s;
}

input[type="checkbox"].toggle:checked {
    background: var(--primary);
}

input[type="checkbox"].toggle::after {
    content: "";
    position: absolute;
    width: 0.6rem;
    height: 0.6rem;
    background: var(--surface);
    border: 2px outset var(--border-light);
    top: 50%;
    transform: translateY(-50%);
    left: 0.2rem;
    transition: left 0.2s;
    box-shadow: inset 1px 1px 0 var(--highlight), inset -1px -1px 0 var(--lowlight);
}

input[type="checkbox"].toggle:checked::after {
    left: 1.5rem;
}

[data-theme="dark"] input[type="checkbox"].toggle {
    background: var(--secondary);
}

[data-theme="dark"] input[type="checkbox"].toggle:checked {
    background: var(--primary);
}

[data-theme="dark"] input[type="checkbox"].toggle::after {
    background: var(--accent-brown-light);
}

#theme-toggle::before {
    content: "☾";
    position: absolute;
    right: 0.4rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    line-height: 1;
    color: var(--titlebar-fg);
    transition: opacity 0.2s;
}

#theme-toggle:checked::before {
    content: "☀";
    right: auto;
    left: 0.4rem;
}

/* range sliders */

input[type="range"] {
    width: 100%;
    height: 2.2rem;
    background: transparent;
    cursor: pointer;
    appearance: none;
    vertical-align: middle;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 1.5rem;
    height: 1rem;
    margin-top: -0.25rem;
    background: linear-gradient(
        135deg,
        var(--primary-light) 0%,
        var(--primary) 50%,
        var(--primary-dark) 100%
    );
    border: 2px outset var(--border-light);
    cursor: pointer;
    box-shadow:
        inset 1px 1px 0 var(--highlight),
        inset -1px -1px 0 var(--lowlight),
        2px 2px 0 rgba(0, 0, 0, 0.3),
        3px 3px 0 rgba(0, 0, 0, 0.1);
}

input[type="range"]::-webkit-slider-thumb:active {
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight), 1px 1px 0
        rgba(0, 0, 0, 0.2);
}

input[type="range"]::-moz-range-thumb {
    width: 1.5rem;
    height: 0.8rem;
    margin-top: -0.15rem;
    background: linear-gradient(
        135deg,
        var(--primary-light) 0%,
        var(--primary) 50%,
        var(--primary-dark) 100%
    );
    border: 2px outset var(--border-light);
    cursor: pointer;
    box-shadow:
        inset 1px 1px 0 var(--highlight),
        inset -1px -1px 0 var(--lowlight),
        2px 2px 0 rgba(0, 0, 0, 0.3),
        3px 3px 0 rgba(0, 0, 0, 0.1);
    border-radius: 0.3rem;
}

input[type="range"]::-moz-range-thumb:active {
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight), 1px 1px 0
        rgba(0, 0, 0, 0.2);
}

input[type="range"]::-webkit-slider-runnable-track {
    background: linear-gradient(180deg, #c0c0c0 0%, #e8e8e8 1px, #dfdfdf 2px, #d0d0d0 100%);
    border: 2px inset var(--border-light);
    height: 0.8rem;
    box-shadow: inset 2px 2px 0 rgba(255, 255, 255, 0.8), inset -2px -2px 0 rgba(0, 0, 0, 0.4),
        inset 1px 1px 0 rgba(0, 0, 0, 0.1);
}

input[type="range"]::-moz-range-track {
    background: transparent;
    border: none;
}

input[type="range"]::-moz-range-progress {
    background: linear-gradient(
        180deg,
        var(--secondary-light) 0%,
        var(--secondary) 50%,
        var(--secondary-dark) 100%
    );
    height: 0.8rem;
    border: 2px inset var(--border-light);
    box-shadow: inset 2px 2px 0 rgba(255, 255, 255, 0.6), inset -2px -2px 0 rgba(0, 0, 0, 0.3);
}

/* file inputs */

input[type="file"] {
    display: none;
}

label.file-input-button {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 700;
    padding: var(--space-xs) var(--space-sm);
    border: 2px outset var(--border-light);
    background: var(--surface);
    color: var(--fg);
    font-size: 0.875rem;
    box-shadow: inset 1px 1px 0 var(--highlight), inset -1px -1px 0 var(--lowlight), 2px 2px 0
        rgba(0, 0, 0, 0.18);
    transition: transform 0.05s, box-shadow 0.05s, background 0.1s;
    user-select: none;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
    margin-top: var(--space-xs);
}

label.file-input-button:hover {
    background: var(--surface-alt);
}

label.file-input-button:active {
    transform: translate(1px, 1px);
    border-style: inset;
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight);
}

label.file-input-button.has-file {
    background: var(--success);
    color: var(--surface-alt);
    border-color: var(--success);
}

label.file-input-button.has-file:hover {
    background: color-mix(in srgb, var(--success) 85%, white);
}

label.file-input-button.has-file:active {
    background: color-mix(in srgb, var(--success) 70%, black);
}

input[type="file"]:focus-visible + label.file-input-button {
    outline: 1px dotted var(--fg);
    outline-offset: 2px;
}

fieldset {
    border: 2px solid var(--border-light);
    padding: var(--space-md);
    margin: var(--space-md) 0;
    background: var(--surface);
    box-shadow: inset 1px 1px 0 rgba(255, 255, 255, 0.3), inset -1px -1px 0 rgba(0, 0, 0, 0.6);
}

fieldset > :last-child {
    margin-bottom: 0;
}

legend {
    padding: 0 var(--space-xs);
    margin-left: calc(var(--space-xs) * -1);
    font-weight: bold;
    color: var(--fg);
    background: var(--surface);
}

/* buttons */

button {
    font-family: var(--font-mono);
    font-weight: 700;
    padding: var(--space-xs) var(--space-sm);
    border: 2px outset var(--border-light);
    background: var(--surface);
    color: var(--fg);
    font-size: 0.875rem;
    box-shadow: inset 1px 1px 0 var(--highlight), inset -1px -1px 0 var(--lowlight), 2px 2px 0
        rgba(0, 0, 0, 0.18);
    transition: transform 0.05s, box-shadow 0.05s, background 0.1s;
    cursor: pointer;
}

button:hover {
    background: var(--surface-alt);
}

button:active {
    transform: translate(1px, 1px);
    border-style: inset;
    box-shadow: inset 1px 1px 0 var(--lowlight), inset -1px -1px 0 var(--highlight);
}

/* button variants */

button.primary {
    background: var(--primary);
    color: var(--surface-alt);
}

button.primary:hover {
    background: var(--primary-light);
}

button.primary:active {
    background: var(--primary-dark);
}

button.secondary {
    background: var(--secondary);
    color: var(--fg);
}

button.secondary:hover {
    background: var(--secondary-light);
}

button.secondary:active {
    background: var(--secondary-dark);
}

button.success,
button.error,
button.warning,
button.info {
    color: var(--surface-alt);
}

button.success {
    background: var(--success);
}

button.error {
    background: var(--error);
}

button.warning {
    background: var(--warning);
}

button.info {
    background: var(--info);
}

button.success:hover,
button.error:hover,
button.warning:hover,
button.info:hover {
    filter: brightness(1.06);
}

button.contrast {
    background: var(--fg);
    color: var(--surface-alt);
}

button.contrast:hover {
    background: var(--muted);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* button groups */

.button-group {
    display: inline-flex;
    border: var(--border-width) solid var(--border);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark), 3px 3px 0
        rgba(0, 0, 0, 0.12);
}

.button-group button {
    border: none;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
}

.button-group button:not(:last-child) {
    border-right: 1px solid var(--border-dark);
}

.button-group button:hover {
    box-shadow: none;
    transform: none;
}

.button-group button:active {
    box-shadow: none;
    transform: none;
}

/* alerts & messages */

.alert {
    padding: var(--space-md);
    margin: var(--space-md) 0;
    border: var(--border-width) solid var(--border);
    border-left: 4px solid var(--info);
    background: var(--surface);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark), 3px 3px 0
        rgba(0, 0, 0, 0.12);
}

.alert.success {
    border-left-color: var(--success);
    background-color: color-mix(in srgb, var(--success) 10%, transparent);
}

.alert.error {
    border-left-color: var(--error);
    background-color: color-mix(in srgb, var(--error) 10%, transparent);
}

.alert.warning {
    border-left-color: var(--warning);
    background-color: color-mix(in srgb, var(--warning) 10%, transparent);
}

.alert.info {
    border-left-color: var(--info);
    background-color: color-mix(in srgb, var(--info) 10%, transparent);
}

/* badges & pills */

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    margin: 0 0.25rem;
    background: var(--surface-alt);
    color: var(--fg);
    font-size: 0.75rem;
    font-weight: 700;
    border: 1px solid var(--border-dark);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark);
}

.badge.primary {
    background: var(--primary);
    color: var(--surface-alt);
}

.badge.success {
    background: var(--success);
    color: var(--surface-alt);
}

.badge.error {
    background: var(--error);
    color: var(--surface-alt);
}

.badge.warning {
    background: var(--warning);
    color: var(--surface-alt);
}

.badge.info {
    background: var(--info);
    color: var(--surface-alt);
}

.badge.contrast {
    background: var(--fg);
    color: var(--surface-alt);
}

/* helpers */

.text-success {
    color: var(--success);
    font-weight: bold;
}

.text-error {
    color: var(--error);
    font-weight: bold;
}

.text-warning {
    color: var(--warning);
    font-weight: bold;
}

.text-info {
    color: var(--info);
    font-weight: bold;
}

.text-muted {
    color: var(--muted);
}

.text-contrast {
    color: var(--fg);
    font-weight: bold;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-xs {
    margin-top: var(--space-xs);
}
.mt-sm {
    margin-top: var(--space-sm);
}
.mt-md {
    margin-top: var(--space-md);
}
.mt-lg {
    margin-top: var(--space-lg);
}
.mt-xl {
    margin-top: var(--space-xl);
}

.mb-xs {
    margin-bottom: var(--space-xs);
}
.mb-sm {
    margin-bottom: var(--space-sm);
}
.mb-md {
    margin-bottom: var(--space-md);
}
.mb-lg {
    margin-bottom: var(--space-lg);
}
.mb-xl {
    margin-bottom: var(--space-xl);
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.py-md {
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
}

#theme-toggle {
    margin-left: auto;
    margin-bottom: 0;
}

/* demo page */

.demo-page .demo-section {
    margin-bottom: var(--space-xl);
}

.demo-page .component-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    margin: var(--space-md) 0;
}

.demo-page .component-box {
    border: var(--border-width) solid var(--border);
    padding: var(--space-md);
    background: var(--surface);
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark),
        var(--shadow-box);
}

.demo-page .component-box > :last-child {
    margin-bottom: 0;
}

.demo-page .component-label {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.demo-page .button-row {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin: var(--space-md) 0;
}

.demo-page .form-group {
    margin-bottom: var(--space-md);
}

.demo-page code {
    background: var(--bg);
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-light);
    font-size: 0.875rem;
    font-family: var(--font-mono);
}

.demo-page pre code {
    background: transparent;
    border: none;
    padding: 0;
}

.demo-page .color-swatch {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: var(--border-width) solid var(--border);
    margin-right: var(--space-sm);
    vertical-align: middle;
    box-shadow: inset 1px 1px 0 var(--border-light), inset -1px -1px 0 var(--border-dark),
        var(--shadow-sm);
}

.demo-page .demo-swatch-row {
    display: flex;
    align-items: center;
}

.demo-page .demo-inline-label {
    display: inline;
    margin: 0;
}

.demo-page .demo-example-box {
    max-width: 400px;
}

/* fairy dust */

.fairy-dust {
    position: fixed;
    pointer-events: none;
    z-index: 9001;
    line-height: 1;
    animation: fairy-float 0.8s ease-out forwards;
    will-change: transform, opacity;
}

@keyframes fairy-float {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(40px) scale(0.5);
    }
}