:root {
    --built-black: #09090b;
    --structure: #15151a;
    --framework: #292931;
    --purple: #7657ff;
    --cyan: #43d9e6;
    --primary-text: #f3f3f5;
    --secondary-text: #a5a5af;
    --muted-text: #71717c;
    --gutter: clamp(1.25rem, 4.5vw, 5rem);
    color-scheme: dark;
}

* { box-sizing: border-box; }

html { min-width: 20rem; background: var(--built-black); scroll-behavior: smooth; scrollbar-color: var(--purple) var(--structure); scrollbar-width: thin; }
html::-webkit-scrollbar { width: .75rem; }
html::-webkit-scrollbar-track { background: var(--structure); }
html::-webkit-scrollbar-thumb { background: var(--purple); border: 2px solid var(--structure); }
html.is-wheel-scrolling { scroll-behavior: auto; }

body {
    margin: 0;
    background: var(--built-black);
    color: var(--primary-text);
    font-family: "Microsoft Sans Serif", "Segoe UI", Arial, sans-serif;
}

button, input { font: inherit; }
button { color: inherit; }
a { color: inherit; }
canvas, .brand-render-preview { display: block; max-width: 100%; }
.brand-render-source { display: none !important; }
.brand-render-preview { image-rendering: auto; }
::selection { background: var(--purple); color: #fff; }

.skip-link {
    position: fixed;
    z-index: 100;
    top: 1rem;
    left: 1rem;
    padding: .8rem 1rem;
    background: var(--primary-text);
    color: var(--built-black);
    font-weight: 700;
    transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.brand-header {
    position: relative;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 6.25rem;
    padding: 0 var(--gutter);
    border-bottom: 1px solid var(--framework);
    font-family: "Cascadia Mono", Consolas, monospace;
    font-size: .625rem;
    letter-spacing: .08em;
}

.brand-home { display: block; text-decoration: none; transition: opacity 160ms ease; }
.brand-home:hover, .brand-home:focus-visible { opacity: .72; }
.brand-home-logo-frame { display: block; width: 7.25rem; aspect-ratio: 1911 / 770; overflow: hidden; }
.brand-home-logo { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.header-about { color: var(--muted-text); text-decoration: none; }
.header-about:hover, .header-about:focus-visible { color: var(--cyan); }
.document-id { display: grid; gap: .35rem; color: var(--muted-text); text-align: right; }
.document-id span:first-child { color: var(--cyan); }

.table-of-contents.section-grid { grid-template-columns: clamp(3rem, 7vw, 7rem) minmax(16rem, .55fr) minmax(0, 1fr); }
.table-of-contents .section-index { grid-row: 1; padding-top: clamp(2.5rem, 5vw, 5rem); }
.contents-heading { padding: clamp(2.5rem, 5vw, 5rem) var(--gutter); border-right: 1px solid var(--framework); }
.contents-heading h1 { margin: 0; font-size: clamp(2.5rem, 5vw, 5.5rem); letter-spacing: normal; line-height: 1.05; }
.contents-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 1fr; margin: 0; padding: 0; list-style: none; }
.contents-list li { min-width: 0; border-bottom: 1px solid var(--framework); }
.contents-list li:nth-child(odd) { border-right: 1px solid var(--framework); }
.contents-list li:nth-last-child(-n + 2) { border-bottom: 0; }
.contents-list a { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; align-items: center; gap: .75rem; min-height: 4.5rem; padding: 1rem 1.25rem; text-decoration: none; transition: background-color 160ms ease, color 160ms ease; }
.contents-list a span:first-child, .contents-list a span:last-child { color: var(--muted-text); font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .08em; }
.contents-list a span:nth-child(2) { font-weight: 700; }
.contents-list a:hover, .contents-list a:focus-visible { outline: 0; background: var(--purple); color: #fff; }
.contents-list a:hover span, .contents-list a:focus-visible span { color: inherit; }

.back-to-top { position: fixed; z-index: 25; right: 1.25rem; bottom: 1.25rem; display: grid; grid-template-columns: auto auto; place-items: center; gap: .55rem; min-width: 4.5rem; min-height: 3rem; padding: .65rem .8rem; border: 1px solid var(--framework); background: rgba(9,9,11,.92); color: var(--primary-text); font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; font-weight: 700; letter-spacing: .1em; text-decoration: none; backdrop-filter: blur(10px); transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease; }
.back-to-top span:last-child { color: var(--cyan); font-size: 1rem; line-height: 1; }
.back-to-top:hover, .back-to-top:focus-visible { border-color: var(--cyan); outline: 0; background: var(--cyan); color: var(--built-black); }
.back-to-top:hover span:last-child, .back-to-top:focus-visible span:last-child { color: inherit; }

.section-grid {
    display: grid;
    grid-template-columns: clamp(3rem, 7vw, 7rem) minmax(0, 1fr);
    border-bottom: 1px solid var(--framework);
}

.section-index {
    padding-top: clamp(3rem, 7vw, 7rem);
    border-right: 1px solid var(--framework);
    color: var(--muted-text);
    font-family: "Cascadia Mono", Consolas, monospace;
    font-size: .625rem;
    letter-spacing: .08em;
    text-align: center;
}

.eyebrow, .type-label, .card-meta, .asset-card p, .studio-actions, .principles dt {
    font-family: "Cascadia Mono", Consolas, monospace;
    font-size: .625rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.eyebrow { margin: 0 0 1.5rem; color: var(--cyan); }
.different-accent { color: var(--purple); }
.section-heading { padding: clamp(3rem, 7vw, 7rem) var(--gutter) clamp(2.5rem, 5vw, 5rem); }
.section-heading h2 { max-width: 15ch; margin: 0; font-size: clamp(2.5rem, 6vw, 6.5rem); letter-spacing: normal; line-height: 1.05; }
.section-heading > p:last-of-type { max-width: 43rem; margin: 2rem 0 0; color: var(--secondary-text); font-size: clamp(1rem, 1.4vw, 1.2rem); line-height: 1.65; }

.brand-hero { min-height: calc(100svh - 6.25rem); grid-template-rows: 1fr auto; }
.brand-hero .section-index { grid-row: 1 / 3; }
.brand-hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(4rem, 8vw, 8rem) var(--gutter) 2rem; overflow: hidden; }
.brand-hero h1 { margin: 0; font-size: clamp(4rem, 12vw, 13rem); letter-spacing: normal; line-height: 1.05; }
.brand-hero h1 span { display: block; }
.brand-hero h1 span:nth-child(2) { margin-left: clamp(1rem, 12vw, 13rem); color: var(--purple); }
.brand-hero h1 .accent-line { margin-top: .17em; color: var(--primary-text); }
.hero-deck { align-self: flex-end; max-width: 38rem; margin: 3.5rem 0 0; color: var(--secondary-text); font-size: clamp(1rem, 1.5vw, 1.3rem); line-height: 1.6; }
.hero-mark { position: relative; min-height: 16rem; padding: 1.5rem var(--gutter) 2rem; border-top: 1px solid var(--framework); background-image: linear-gradient(var(--framework) 1px, transparent 1px), linear-gradient(90deg, var(--framework) 1px, transparent 1px); background-size: 3rem 3rem; overflow: hidden; }
.hero-mark canvas, .hero-mark .brand-render-preview { width: min(52rem, 80%); margin-inline: auto; }
.hero-coordinate { position: absolute; right: var(--gutter); bottom: 1rem; color: var(--cyan); font-family: "Cascadia Mono", Consolas, monospace; font-size: .55rem; letter-spacing: .08em; }

.manifesto { grid-template-columns: clamp(3rem, 7vw, 7rem) minmax(17rem, .72fr) minmax(0, 1fr); }
.manifesto .section-index { grid-row: 1; }
.manifesto .section-heading { border-right: 1px solid var(--framework); }
.manifesto-copy { padding: clamp(3rem, 7vw, 7rem) var(--gutter); }
.manifesto-copy > p:first-child { max-width: 21ch; margin: 0 0 2rem; color: var(--primary-text); font-size: clamp(1.8rem, 3vw, 3.4rem); letter-spacing: normal; line-height: 1.08; }
.manifesto-copy > p:nth-child(2) { max-width: 41rem; margin: 0; color: var(--secondary-text); font-size: 1.1rem; line-height: 1.7; }
.principles { margin: 4rem 0 0; border-top: 1px solid var(--framework); }
.principles div { display: grid; grid-template-columns: 11rem 1fr; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--framework); }
.principles dt { color: var(--purple); }
.principles dd { margin: 0; color: var(--secondary-text); }

.logo-examples { grid-column: 2; display: grid; grid-template-columns: 1.35fr 1.35fr .65fr .65fr; border-top: 1px solid var(--framework); }
.logo-card { display: grid; grid-template-rows: auto 1fr auto; min-height: 28rem; padding: 1.4rem; border-right: 1px solid var(--framework); }
.logo-card:last-child { border-right: 0; }
.logo-card canvas, .logo-card .brand-render-preview { align-self: center; width: 100%; }
.logo-card p { margin: 0; font-size: .75rem; }
.card-meta { display: flex; justify-content: space-between; color: currentColor; opacity: .68; }
.logo-card-dark { background: var(--built-black); }
.logo-card-purple { background: var(--purple); color: white; }
.logo-card-light { background: var(--primary-text); color: var(--built-black); }
.badge-example canvas, .badge-example .brand-render-preview { max-height: 18rem; object-fit: contain; }

.mark-sizing { grid-column: 2; display: grid; grid-template-columns: minmax(17rem, .8fr) minmax(0, 1.2fr); border-top: 1px solid var(--framework); }
.mark-sizing-intro { padding: clamp(2.5rem, 5vw, 5rem) var(--gutter); border-right: 1px solid var(--framework); }
.mark-sizing-intro h3 { max-width: 12ch; margin: 0; font-size: clamp(2rem, 4vw, 4.5rem); letter-spacing: normal; line-height: 1.05; }
.mark-sizing-intro > p:last-child { max-width: 36rem; margin: 2rem 0 0; color: var(--secondary-text); line-height: 1.65; }
.mark-size-rules { display: grid; grid-template-columns: 1fr 1fr; margin: 0; }
.mark-size-rules > div { min-height: 17rem; padding: clamp(2rem, 4vw, 3.5rem); border-right: 1px solid var(--framework); }
.mark-size-rules > div:last-child { border-right: 0; }
.mark-size-rules dt, .mark-size-switch span { color: var(--cyan); font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .1em; }
.mark-size-rules dd { display: grid; gap: 1rem; margin: 3rem 0 0; }
.mark-size-rules strong { font-size: clamp(1.6rem, 3vw, 3rem); letter-spacing: normal; }
.mark-size-rules dd span { max-width: 24rem; color: var(--secondary-text); line-height: 1.6; }
.mark-size-switch { grid-column: 2; margin: 0; padding: 1.25rem var(--gutter); border-top: 1px solid var(--framework); color: var(--secondary-text); line-height: 1.6; }
.mark-size-switch span { margin-right: 1rem; color: var(--purple); }

.stamp-showcase { grid-column: 2; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--framework); }
.stamp-example { display: grid; grid-template-rows: auto 1fr auto; gap: 1.5rem; min-height: 20rem; padding: 1.5rem; }
.stamp-example:first-child { border-right: 1px solid var(--framework); }
.stamp-example-dark { background: var(--built-black); color: var(--primary-text); }
.stamp-example-light { background: var(--primary-text); color: var(--built-black); }
.stamp-footer-demo { align-self: center; display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-top: 1.25rem; border-top: 1px solid currentColor; }
.stamp-footer-demo > span { flex: 0 0 auto; opacity: .55; font-family: "Cascadia Mono", Consolas, monospace; font-size: .55rem; letter-spacing: .08em; }
.stamp-footer-demo > a { display: block; width: min(18rem, 55%); transition: opacity 160ms ease; }
.stamp-footer-demo > a:hover, .stamp-footer-demo > a:focus-visible { opacity: .7; }
.stamp-example canvas, .stamp-example .brand-render-preview { width: 100%; }
.stamp-example button { justify-self: start; padding: .75rem .9rem; border: 1px solid currentColor; background: transparent; color: inherit; cursor: pointer; font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .08em; text-transform: uppercase; }
.stamp-example button:hover, .stamp-example button:focus-visible { border-color: var(--cyan); background: var(--cyan); color: var(--built-black); }
.stamp-rules { grid-column: 2; display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; border-top: 1px solid var(--framework); }
.stamp-rules div { min-height: 10rem; padding: 1.5rem; border-right: 1px solid var(--framework); }
.stamp-rules div:last-child { border-right: 0; }
.stamp-rules dt { color: var(--purple); font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .1em; }
.stamp-rules dd { margin: 2.5rem 0 0; color: var(--secondary-text); line-height: 1.55; }

.asset-studio { grid-template-columns: clamp(3rem, 7vw, 7rem) minmax(18rem, .7fr) minmax(0, 1.3fr); }
.asset-studio .section-index { grid-row: 1 / 3; }
.studio-heading { border-right: 1px solid var(--framework); }
.studio-controls { padding: clamp(3rem, 7vw, 7rem) var(--gutter); }
.studio-controls fieldset { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; margin: 0 0 1.8rem; padding: 0; border: 0; }
.studio-controls legend { width: 100%; margin-bottom: .75rem; color: var(--muted-text); font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .1em; }
.studio-controls label { position: relative; }
.studio-controls label span { display: flex; align-items: center; min-height: 2.75rem; padding: .7rem .85rem; border: 1px solid var(--framework); color: var(--secondary-text); font-size: .78rem; cursor: pointer; }
.studio-controls input[type="radio"], .studio-controls input[type="checkbox"] { position: absolute; opacity: 0; pointer-events: none; }
.studio-controls input:checked + span { border-color: var(--purple); background: rgba(118,87,255,.12); color: var(--primary-text); box-shadow: inset 3px 0 var(--purple); }
.studio-controls input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.studio-controls .studio-toggle { grid-column: 1 / -1; }
.studio-toggle span::after { content: "OFF"; margin-left: auto; color: var(--muted-text); font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .08em; }
.studio-toggle input:checked + span::after { content: "ON"; color: var(--cyan); }
.swatch-option span::before { content: ""; width: .75rem; height: .75rem; margin-right: .55rem; border: 1px solid var(--framework); background: var(--swatch); }
.swatch-white { --swatch: #f3f3f5; }
.swatch-purple { --swatch: #7657ff; }
.swatch-cyan { --swatch: #43d9e6; }
.swatch-black { --swatch: #09090b; }
.studio-output { grid-column: 2 / 4; display: grid; grid-template-columns: minmax(18rem, .7fr) minmax(0, 1.3fr); border-top: 1px solid var(--framework); }
.studio-preview { position: relative; grid-column: 1 / 3; display: grid; place-items: center; min-height: 44rem; padding: clamp(2rem, 5vw, 5rem); background: var(--structure); overflow: hidden; }
.studio-preview canvas, .studio-preview .brand-render-preview { position: relative; z-index: 1; width: min(100%, 72rem); max-height: 62svh; object-fit: contain; box-shadow: 0 2rem 6rem rgba(0,0,0,.28); }
.preview-transparency { position: absolute; inset: 0; background-image: linear-gradient(45deg,#202027 25%,transparent 25%),linear-gradient(-45deg,#202027 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#202027 75%),linear-gradient(-45deg,transparent 75%,#202027 75%); background-position: 0 0,0 10px,10px -10px,-10px 0; background-size: 20px 20px; opacity: 0; }
.studio-preview.is-transparent .preview-transparency { opacity: 1; }
.studio-actions { grid-column: 1 / 3; display: flex; align-items: center; justify-content: space-between; gap: 2rem; min-height: 6rem; padding: 1rem var(--gutter); border-top: 1px solid var(--framework); }
.studio-actions > div:first-child { display: grid; gap: .35rem; }
.studio-actions > div:first-child span:last-child { color: var(--muted-text); }
.studio-action-buttons { display: flex; gap: .65rem; }
.studio-actions button, .asset-card button { border: 0; background: var(--purple); color: #fff; cursor: pointer; font-weight: 700; }
.studio-actions button { min-height: 3rem; padding: .8rem 1rem; }
.studio-actions .studio-rotate { border: 1px solid var(--framework); background: transparent; color: var(--primary-text); }
.studio-actions button:hover, .studio-actions button:focus-visible, .asset-card button:hover, .asset-card button:focus-visible { background: var(--cyan); color: var(--built-black); }

.asset-grid { grid-column: 2; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--framework); }
.pack-download { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: .35rem 2rem; width: min(100%, 31rem); margin-top: 2rem; padding: 1rem; border: 1px solid var(--purple); background: rgba(118,87,255,.1); color: var(--primary-text); cursor: pointer; text-align: left; }
.pack-download > span:first-child { font-weight: 700; }
.pack-download > span:last-child { grid-row: 1 / 3; grid-column: 2; color: var(--cyan); font-size: 1.2rem; }
.pack-download small { color: var(--muted-text); font-family: "Cascadia Mono", Consolas, monospace; font-size: .6rem; letter-spacing: .08em; }
.pack-download:hover, .pack-download:focus-visible { border-color: var(--cyan); background: var(--cyan); color: var(--built-black); }
.pack-download:hover small, .pack-download:focus-visible small, .pack-download:hover > span:last-child, .pack-download:focus-visible > span:last-child { color: var(--built-black); }
.pack-download:disabled { cursor: wait; opacity: .6; }
.asset-card { min-width: 0; border-right: 1px solid var(--framework); border-bottom: 1px solid var(--framework); }
.asset-card:nth-child(3n) { border-right: 0; }
.asset-preview { display: grid; place-items: center; aspect-ratio: 4 / 3; padding: 2rem; overflow: hidden; }
.asset-preview canvas, .asset-preview .brand-render-preview { width: 100%; max-height: 100%; object-fit: contain; }
.asset-preview canvas[data-mark="badge"], .asset-preview canvas[data-mark="badge"] + .brand-render-preview { height: 100%; max-height: none; object-fit: cover; object-position: center; }
.asset-preview-dark { background: var(--built-black); }
.asset-preview-light { background: var(--primary-text); }
.asset-preview-purple { background: var(--purple); }
.transparency-grid { background-color: #15151a; background-image: linear-gradient(45deg,#222229 25%,transparent 25%),linear-gradient(-45deg,#222229 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#222229 75%),linear-gradient(-45deg,transparent 75%,#222229 75%); background-position: 0 0,0 10px,10px -10px,-10px 0; background-size: 20px 20px; }
.asset-card > div:last-child { display: grid; grid-template-columns: 1fr auto; gap: .3rem 1rem; padding: 1.25rem; border-top: 1px solid var(--framework); }
.asset-card h3 { margin: 0; font-size: 1rem; }
.asset-card p { margin: 0; color: var(--muted-text); }
.asset-card button { grid-row: 1 / 3; grid-column: 2; padding: .6rem .75rem; font-family: "Cascadia Mono", Consolas, monospace; font-size: .625rem; letter-spacing: .08em; }

.colour-grid { grid-column: 2; display: grid; grid-template-columns: repeat(6, 1fr); min-height: 25rem; border-top: 1px solid var(--framework); }
.colour-chip { display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; padding: 1.25rem; border: 0; border-right: 1px solid rgba(255,255,255,.14); background: var(--chip); color: var(--chip-text, white); cursor: copy; text-align: left; }
.colour-chip:last-child { border-right: 0; }
.colour-chip span, .colour-chip small { font-family: "Cascadia Mono", Consolas, monospace; font-size: .6rem; letter-spacing: .08em; }
.colour-chip strong { writing-mode: vertical-rl; transform: rotate(180deg); font-size: 1rem; letter-spacing: .08em; }
.colour-chip:hover, .colour-chip:focus-visible { box-shadow: inset 0 0 0 3px var(--cyan); }
.chip-black { --chip: #09090b; }
.chip-structure { --chip: #15151a; }
.chip-framework { --chip: #292931; }
.chip-purple { --chip: #7657ff; }
.chip-cyan { --chip: #43d9e6; --chip-text: #09090b; }
.chip-text { --chip: #f3f3f5; --chip-text: #09090b; }

.type-specimens { grid-column: 2; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--framework); }
.type-specimens article { min-width: 0; min-height: 31rem; padding: clamp(2rem, 5vw, 5rem) var(--gutter); }
.type-primary { border-right: 1px solid var(--framework); }
.type-label { margin: 0; color: var(--cyan); }
.display-sample { margin: 3rem 0; font-size: clamp(2.75rem, 6vw, 7rem); font-weight: 800; letter-spacing: normal; line-height: 1.05; }
.mono-sample { margin: 3rem 0; color: var(--purple); font-family: "Cascadia Mono", Consolas, monospace; font-size: clamp(1.2rem, 2.2vw, 2.2rem); line-height: 1.65; }
.type-specimens article > p:last-child { max-width: 32rem; color: var(--secondary-text); line-height: 1.65; }

.rules-grid { grid-column: 2; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--framework); }
.rules-grid article { min-height: 18rem; padding: 2rem; border-right: 1px solid var(--framework); }
.rules-grid article:last-child { border: 0; }
.rule-status { display: inline-block; padding: .25rem .4rem; font-family: "Cascadia Mono", Consolas, monospace; font-size: .6rem; letter-spacing: .08em; }
.rule-do { background: var(--cyan); color: var(--built-black); }
.rule-dont { background: var(--framework); color: var(--secondary-text); }
.rules-grid h3 { margin: 4.5rem 0 1rem; font-size: 1.4rem; letter-spacing: normal; }
.rules-grid p { margin: 0; color: var(--secondary-text); line-height: 1.6; }

.closing-statement { min-height: 85svh; padding: clamp(4rem, 9vw, 9rem) max(var(--gutter), 11vw); background: var(--built-black); color: white; }
.closing-statement .eyebrow { color: white; opacity: .72; }
.closing-statement .different-accent { color: var(--purple); }
.closing-statement > p:nth-child(2) { margin: 10vh 0; font-size: clamp(4rem, 11vw, 12rem); font-weight: 800; letter-spacing: normal; line-height: 1.05; }
.closing-statement a { display: inline-block; padding-bottom: .4rem; border-bottom: 1px solid white; font-family: "Cascadia Mono", Consolas, monospace; font-size: .7rem; letter-spacing: .08em; text-decoration: none; }
.closing-statement .closing-stamp { width: min(24rem, 100%); padding: 0; border: 0; transition: opacity 160ms ease; }
.closing-statement .closing-stamp:hover, .closing-statement .closing-stamp:focus-visible { opacity: .72; }
.closing-stamp canvas, .closing-stamp .brand-render-preview { width: 100%; }

.toast { position: fixed; z-index: 30; right: 1.25rem; bottom: 5.25rem; padding: .8rem 1rem; background: var(--cyan); color: var(--built-black); font-family: "Cascadia Mono", Consolas, monospace; font-size: .65rem; letter-spacing: .06em; opacity: 0; transform: translateY(1rem); transition: opacity 180ms ease, transform 180ms ease; pointer-events: none; }
.toast.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 70rem) {
    .table-of-contents.section-grid { grid-template-columns: clamp(3rem, 7vw, 7rem) minmax(0, 1fr); }
    .contents-heading { border-right: 0; }
    .contents-list { grid-column: 2; border-top: 1px solid var(--framework); }
    .manifesto, .asset-studio { grid-template-columns: clamp(3rem, 7vw, 7rem) 1fr; }
    .manifesto .section-index, .asset-studio .section-index { grid-row: 1 / 4; }
    .manifesto .section-heading, .studio-heading { border-right: 0; border-bottom: 1px solid var(--framework); }
    .manifesto-copy, .studio-controls { grid-column: 2; }
    .studio-output { grid-column: 2; display: block; }
    .logo-examples { grid-template-columns: 1fr 1fr; }
    .mark-sizing { grid-template-columns: 1fr; }
    .mark-sizing-intro { border-right: 0; border-bottom: 1px solid var(--framework); }
    .mark-size-switch { grid-column: 1; }
    .logo-card:nth-child(2) { border-right: 0; }
    .logo-card { border-bottom: 1px solid var(--framework); }
    .asset-grid { grid-template-columns: repeat(2, 1fr); }
    .asset-card:nth-child(3n) { border-right: 1px solid var(--framework); }
    .asset-card:nth-child(2n) { border-right: 0; }
    .colour-grid { grid-template-columns: repeat(3, 1fr); }
    .colour-chip { min-height: 15rem; border-bottom: 1px solid rgba(255,255,255,.14); }
    .rules-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 44rem) {
    .brand-header { min-height: 5rem; }
    .brand-home-logo-frame { width: 6rem; }
    .contents-list { grid-template-columns: 1fr; }
    .contents-list li, .contents-list li:nth-child(odd), .contents-list li:nth-last-child(-n + 2) { border-right: 0; border-bottom: 1px solid var(--framework); }
    .contents-list li:last-child { border-bottom: 0; }
    .contents-list a { min-height: 4rem; }
    .back-to-top { right: .75rem; bottom: .75rem; min-width: 3rem; }
    .back-to-top span:first-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
    .toast { right: .75rem; bottom: 4.5rem; max-width: calc(100vw - 1.5rem); }
    .section-grid, .manifesto, .asset-studio { grid-template-columns: 2.75rem minmax(0, 1fr); }
    .section-index { padding-top: 2.5rem; }
    .brand-hero { min-height: calc(100svh - 5rem); }
    .brand-hero h1 { font-size: clamp(3.6rem, 19vw, 7rem); }
    .brand-hero h1 span:nth-child(2) { margin-left: 0; }
    .hero-deck { margin-top: 2.5rem; }
    .hero-mark { min-height: 11rem; }
    .hero-mark canvas { width: 100%; }
    .hero-coordinate { display: none; }
    .manifesto .section-heading, .manifesto-copy, .studio-heading, .studio-controls, .studio-output { grid-column: 2; }
    .principles div { grid-template-columns: 1fr; }
    .logo-examples, .stamp-showcase, .asset-grid, .type-specimens, .rules-grid { grid-template-columns: 1fr; }
    .logo-card { min-height: 21rem; border-right: 0; }
    .mark-size-rules { grid-template-columns: 1fr; }
    .mark-size-rules > div { min-height: 0; border-right: 0; border-bottom: 1px solid var(--framework); }
    .mark-size-rules > div:last-child { border-bottom: 0; }
    .stamp-example:first-child { border-right: 0; border-bottom: 1px solid var(--framework); }
    .stamp-example { min-height: 20rem; }
    .stamp-footer-demo { align-items: flex-start; flex-direction: column; }
    .stamp-footer-demo > a { width: min(18rem, 100%); }
    .stamp-rules { grid-template-columns: 1fr; }
    .stamp-rules div { min-height: 0; border-right: 0; border-bottom: 1px solid var(--framework); }
    .studio-preview { min-height: 24rem; padding: 1.25rem; }
    .studio-actions { align-items: stretch; flex-direction: column; }
    .studio-actions { align-items: stretch; flex-direction: column; }
    .studio-action-buttons { display: grid; grid-template-columns: 1fr; }
    .studio-actions button { width: 100%; }
    .asset-card { border-right: 0 !important; }
    .colour-grid { grid-template-columns: 1fr 1fr; }
    .colour-chip { min-height: 12rem; }
    .type-primary { border-right: 0; border-bottom: 1px solid var(--framework); }
    .display-sample { font-size: clamp(2.75rem, 12.5vw, 4rem); }
    .rules-grid article { min-height: 15rem; border-right: 0; border-bottom: 1px solid var(--framework); }
    .closing-statement { min-height: 70svh; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; }
}