/* Hallmark · Workbench / Cobalt · uses locked tokens from tokens.css; the working artifacts are the visual proof. */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; background: var(--color-paper); }
body { margin: 0; overflow-x: clip; background: var(--color-paper); color: var(--color-ink); font-family: var(--font-body); font-size: var(--text-base); line-height: 1.58; text-rendering: optimizeLegibility; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, dl, dd { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); font-style: normal; line-height: 1.06; letter-spacing: -0.035em; overflow-wrap: anywhere; min-width: 0; }
h1 { max-width: 10ch; font-size: var(--text-display); font-weight: 700; }
h2 { font-size: clamp(var(--text-2xl), 5vw, var(--text-3xl)); font-weight: 700; }
h3 { font-size: var(--text-lg); font-weight: 700; }
p { max-width: 67ch; }
button { color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
::selection { background: var(--color-accent-soft); color: var(--color-ink); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; inset-block-start: var(--space-sm); inset-inline-start: var(--space-sm); z-index: var(--z-tooltip); padding: var(--space-sm) var(--space-md); background: var(--color-ink); color: var(--color-paper); transform: translateY(-160%); transition: transform var(--dur-short) var(--ease-out); }
.skip-link:focus { transform: translateY(0); }
.section-shell { width: min(100% - 2rem, var(--container)); margin-inline: auto; }

.site-header { position: sticky; inset-block-start: 0; z-index: var(--z-sticky-nav); background: var(--color-paper); border-block-end: var(--rule); }
.header-shell { min-height: var(--banner-height); width: min(100% - 2rem, var(--container)); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); }
.wordmark { display: inline-flex; align-items: center; gap: var(--space-sm); min-height: 44px; font-family: var(--font-wordmark); font-weight: 500; text-decoration: none; letter-spacing: -0.025em; white-space: nowrap; }
.wordmark-mark { display: grid; place-items: center; width: 2rem; aspect-ratio: 1; background: var(--color-ink); color: var(--color-paper); border-radius: var(--radius-sm); }
.desktop-nav { display: none; align-items: center; gap: var(--space-xs); }
.desktop-nav a, .nav-disclosure { min-height: 44px; padding-inline: var(--space-md); display: inline-flex; align-items: center; border: 0; background: transparent; text-decoration: none; white-space: nowrap; cursor: pointer; }
.header-actions { display: flex; align-items: center; gap: var(--space-xs); }
.command-trigger { display: none; min-height: 44px; align-items: center; gap: var(--space-sm); padding-inline: var(--space-md); background: transparent; border: var(--rule); border-radius: var(--radius-sm); cursor: pointer; white-space: nowrap; }
kbd { font-family: var(--font-mono); font-size: var(--text-xs); background: var(--color-paper-2); border: var(--rule); border-radius: var(--radius-sm); padding: var(--space-2xs) var(--space-xs); }
.menu-trigger { min-height: 44px; min-width: 52px; border: var(--rule); background: transparent; border-radius: var(--radius-sm); cursor: pointer; white-space: nowrap; }
.mega-menu { position: absolute; inset-inline: 0; inset-block-start: 100%; padding-block: var(--space-lg); background: var(--color-paper); border-block-end: var(--rule); box-shadow: 0 1px 2px var(--color-shadow); }
.mega-menu-grid { width: min(100% - 2rem, var(--content)); margin-inline: auto; display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: var(--space-xl); }
.menu-heading, .console-label { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-muted); }
.mega-menu a { display: grid; gap: var(--space-2xs); min-height: 70px; padding-block: var(--space-sm); text-decoration: none; border-block-end: var(--rule); }
.mega-menu a span { color: var(--color-muted); font-size: var(--text-sm); }
.mega-note { display: grid; align-content: start; grid-template-columns: auto 1fr; gap: var(--space-sm); padding: var(--space-lg); background: var(--color-paper-2); }
.mobile-menu { position: absolute; inset-inline: 0; inset-block-start: 100%; background: var(--color-paper); border-block-end: var(--rule); }
.mobile-menu nav { width: min(100% - 2rem, var(--container)); margin-inline: auto; display: grid; padding-block: var(--space-md); }
.mobile-menu a { display: flex; align-items: center; min-height: 52px; border-block-end: var(--rule); text-decoration: none; font-family: var(--font-display); font-weight: 700; white-space: nowrap; }

.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: var(--space-sm) var(--space-lg); border: 1px solid var(--color-ink); border-radius: var(--radius-sm); background: var(--color-ink); color: var(--color-paper); font-weight: 700; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out); }
.button:active { transform: translateY(1px); }
.button-small { display: none; min-height: 40px; padding: var(--space-xs) var(--space-md); font-size: var(--text-sm); }
.button-ghost { background: transparent; color: var(--color-ink); border-color: var(--color-rule-strong); }
.button-dark { background: var(--color-on-dark); color: var(--color-graphite); border-color: var(--color-on-dark); }
.text-link, .text-button { min-height: 44px; display: inline-flex; align-items: center; padding: 0; border: 0; background: transparent; color: currentColor; font-weight: 700; text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 2px; text-underline-offset: 5px; cursor: pointer; white-space: nowrap; }
.text-button:disabled { opacity: 0.45; cursor: not-allowed; }
button:disabled, .button:disabled { opacity: 0.55; cursor: not-allowed; }
button:active { transform: translateY(1px); }

.hero { display: grid; gap: var(--space-2xl); padding-block: var(--space-2xl) var(--space-3xl); }
.hero-copy { display: grid; align-content: start; gap: var(--space-lg); }
.proof-line { display: flex; align-items: center; gap: var(--space-sm); font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-muted); }
.status-dot { width: 0.55rem; height: 0.55rem; flex: none; border-radius: 50%; background: var(--color-accent); }
.hero-lede { max-width: 55ch; font-size: var(--text-md); color: var(--color-muted); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-md); }
.honesty-strip { display: grid; grid-template-columns: minmax(0, 1fr); border-block: var(--rule); }
.honesty-strip div { min-width: 0; padding-block: var(--space-sm); }
.honesty-strip dt { font-family: var(--font-mono); color: var(--color-neutral); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; }
.honesty-strip dd { margin-block-start: var(--space-2xs); font-size: var(--text-sm); font-weight: 700; }
.vibe-console { align-self: start; border: 1px solid var(--color-rule-strong); background: var(--color-paper-2); box-shadow: 0 1px 2px var(--color-shadow); }
.console-head, .output-head { display: flex; justify-content: space-between; gap: var(--space-md); align-items: flex-start; padding: var(--space-lg); border-block-end: var(--rule); }
.console-head h2 { margin-block-start: var(--space-xs); font-size: var(--text-xl); }
.local-badge, .product-state { display: inline-flex; align-items: center; min-height: 28px; padding-inline: var(--space-sm); border: var(--rule); border-radius: 99rem; font-family: var(--font-mono); font-size: var(--text-xs); white-space: nowrap; }
.vibe-dial { margin: 0; padding: var(--space-lg); border: 0; border-block-end: var(--rule); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-xs); }
.vibe-dial legend { padding: 0 0 var(--space-sm); font-weight: 700; }
.vibe-dial label { min-width: 0; }
.vibe-dial input { position: absolute; opacity: 0; pointer-events: none; }
.vibe-dial span { min-height: 44px; display: grid; place-items: center; border: var(--rule); border-radius: var(--radius-sm); background: var(--color-paper); cursor: pointer; white-space: nowrap; }
.vibe-dial input:checked + span { background: var(--color-ink); color: var(--color-paper); border-color: var(--color-ink); }
.vibe-dial input:focus-visible + span { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.console-output { position: relative; min-height: 15rem; padding: var(--space-xl); overflow: clip; background: var(--color-graphite); color: var(--color-on-dark); }
.console-prompt { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-on-dark-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.type-line { position: relative; z-index: var(--z-raised); margin-block-start: var(--space-xl); max-width: 13ch; font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 700; line-height: 1.04; }
.signal-grid { position: absolute; inset: auto var(--space-lg) var(--space-lg) 42%; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xs); }
.signal-grid span { height: 1.4rem; border: 1px solid var(--color-graphite-2); background: var(--color-graphite-2); }
.signal-grid span:nth-child(2), .signal-grid span:nth-child(6) { background: var(--color-accent); border-color: var(--color-accent); }
.console-actions { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-md); padding: var(--space-md) var(--space-lg); }
.change-note { min-height: 2.4rem; padding: 0 var(--space-lg) var(--space-md); color: var(--color-muted); font-size: var(--text-sm); }

.build-note { border-block: var(--rule); background: var(--color-paper-2); }
.build-note-grid { display: grid; gap: var(--space-sm); padding-block: var(--space-lg); }
.build-note-grid p, .build-note-grid a { font-size: var(--text-sm); }
.build-note-grid a { font-weight: 700; white-space: nowrap; }
.work-section, .lab-section, .shop-section, .ledger-section { padding-block: var(--space-3xl); }
.section-head { display: grid; gap: var(--space-xl); margin-block-end: var(--space-xl); }
.section-head > div:first-child { display: grid; gap: var(--space-md); max-width: 54rem; }
.section-head p { color: var(--color-muted); font-size: var(--text-md); }
.filter-group { display: flex; flex-wrap: wrap; gap: var(--space-xs); }
.filter-chip { min-height: 44px; padding-inline: var(--space-md); border: var(--rule); border-radius: 99rem; background: transparent; cursor: pointer; white-space: nowrap; }
.filter-chip.is-active { background: var(--color-ink); border-color: var(--color-ink); color: var(--color-paper); }
.gallery { display: grid; gap: var(--space-lg); grid-template-columns: minmax(0, 1fr); }
.study-card { min-width: 0; display: grid; border-block-start: var(--rule); padding-block-start: var(--space-md); cursor: pointer; }
.study-card.reveal-pending { opacity: 0; transform: translateY(8px); transition: opacity var(--dur-long) var(--ease-out), transform var(--dur-long) var(--ease-out); }
.study-card.reveal-pending.is-visible { opacity: 1; transform: none; }
.study-card button { display: grid; gap: var(--space-md); width: 100%; min-width: 0; padding: 0; background: transparent; border: 0; text-align: start; cursor: pointer; }
.study-art { position: relative; min-height: 17rem; overflow: clip; border: var(--rule); background: var(--color-paper-2); }
.study-copy { display: grid; grid-template-columns: 1fr auto; gap: var(--space-md); align-items: end; }
.study-copy p { color: var(--color-muted); }
.study-copy span { font-family: var(--font-mono); font-size: var(--text-xs); text-transform: uppercase; }
.art-type { position: absolute; inset: var(--space-lg); font-family: var(--font-display); font-size: clamp(var(--text-xl), 6vw, var(--text-3xl)); font-weight: 700; line-height: 0.96; letter-spacing: -0.05em; }
.art-rule { position: absolute; inset-inline: var(--space-lg); inset-block-end: var(--space-lg); height: 1px; background: var(--color-ink); }
.art-block { position: absolute; width: 35%; height: 44%; inset-inline-end: var(--space-lg); inset-block-end: var(--space-lg); background: var(--color-accent); }
.art-lines { position: absolute; inset-inline-start: var(--space-lg); inset-block-end: var(--space-lg); width: 44%; display: grid; gap: var(--space-xs); }
.art-lines span { height: 0.35rem; background: var(--color-ink); }
.art-lines span:last-child { width: 65%; }
.study-art[data-study="field-notes"] { background: var(--color-graphite); color: var(--color-on-dark); }
.study-art[data-study="field-notes"] .art-rule, .study-art[data-study="field-notes"] .art-lines span { background: var(--color-on-dark); }
.study-art[data-study="common-ground"] .art-type { inset-block-start: auto; inset-block-end: var(--space-lg); max-width: 7ch; }
.study-art[data-study="common-ground"] .art-block { inset-block: 0; height: auto; width: 28%; }
.study-art[data-study="relay"] .art-type { max-width: 7ch; }
.study-art[data-study="relay"] .art-block { width: 52%; height: 18%; }
.study-art[data-study="hard-goods"] .art-type { font-family: var(--font-mono); font-size: var(--text-2xl); max-width: 9ch; }
.study-art[data-study="margin"] .art-type { inset-inline-start: 40%; max-width: 8ch; }
.study-art[data-study="northline"] .art-block { inset-inline: 0; width: 100%; height: 30%; }

.services-section { background: var(--color-graphite); color: var(--color-on-dark); padding-block: var(--space-3xl); }
.services-layout { display: grid; gap: var(--space-2xl); }
.services-intro { align-self: start; display: grid; gap: var(--space-lg); }
.services-intro p { color: var(--color-on-dark-muted); font-size: var(--text-md); }
.service-stack { border-block-start: 1px solid var(--color-graphite-2); }
.service-row { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-md); padding-block: var(--space-xl); border-block-end: 1px solid var(--color-graphite-2); }
.service-row p { margin-block-start: var(--space-xs); color: var(--color-on-dark-muted); }
.service-row .text-link { grid-column: 2; justify-self: start; }
.service-index { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-on-dark-muted); }

.lab-head { align-items: end; }
.lab-grid { display: grid; border: 1px solid var(--color-rule-strong); }
.brief-form { display: grid; gap: var(--space-lg); padding: var(--space-lg); background: var(--color-paper-2); }
.form-head { display: grid; gap: var(--space-xs); padding-block-end: var(--space-md); border-block-end: var(--rule); }
.form-head p { color: var(--color-muted); }
.field { display: grid; gap: var(--space-xs); font-weight: 700; }
.field > span, .field legend { font-size: var(--text-sm); }
select { width: 100%; min-height: 46px; padding-inline: var(--space-md) 2.5rem; border: var(--rule); outline: 2px solid transparent; outline-offset: 1px; border-radius: var(--radius-sm); background-color: var(--color-paper); color: var(--color-ink); cursor: pointer; }
select:hover { background-color: var(--color-paper-3); }
select:focus-visible { outline-color: var(--color-focus); }
.check-field { margin: 0; padding: 0; border: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.check-field legend { grid-column: 1 / -1; padding: 0; }
.check-field label { min-height: 44px; display: flex; align-items: center; gap: var(--space-xs); font-weight: 400; }
.check-field input { width: 1.1rem; height: 1.1rem; accent-color: var(--color-accent); }
.brief-output { min-width: 0; display: grid; align-content: start; background: var(--color-graphite); color: var(--color-on-dark); }
.output-head { border-color: var(--color-graphite-2); }
.output-head h3 { margin-block-start: var(--space-xs); }
.output-head > span { font-family: var(--font-mono); color: var(--color-on-dark-muted); font-size: var(--text-xs); }
.brief-output pre { min-height: 23rem; margin: 0; padding: var(--space-lg); overflow: auto; white-space: pre-wrap; color: var(--color-on-dark); font-family: var(--font-mono); font-size: var(--text-sm); line-height: 1.7; }
.output-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); padding: var(--space-lg); border-block-start: 1px solid var(--color-graphite-2); }
.brief-output .button { background: var(--color-on-dark); color: var(--color-graphite); border-color: var(--color-on-dark); }
.brief-output .button-ghost { background: transparent; color: var(--color-on-dark); border-color: var(--color-on-dark-muted); }
.helper { padding: 0 var(--space-lg) var(--space-lg); color: var(--color-on-dark-muted); font-size: var(--text-sm); }

.product-grid { display: grid; gap: var(--space-md); }
.product-card { min-height: 19rem; display: grid; align-content: space-between; gap: var(--space-xl); padding: var(--space-lg); border: var(--rule); background: var(--color-paper); }
.product-card p { margin-block-start: var(--space-sm); color: var(--color-muted); }
.product-state { justify-self: start; }
.product-featured { background: var(--color-accent-soft); }
.muted-action { color: var(--color-muted); font-size: var(--text-sm); }

.agent-section { padding-block: var(--space-3xl); background: var(--color-paper-2); border-block: var(--rule); }
.agent-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-2xl); }
.agent-layout > *, .agent-demo { min-width: 0; }
.agent-intro { display: grid; gap: var(--space-lg); align-content: start; }
.agent-intro p:last-child { color: var(--color-muted); }
.agent-tabs { display: flex; gap: var(--space-xs); overflow-x: auto; padding-block-end: var(--space-sm); }
.agent-tabs button { min-width: 5.5rem; min-height: 44px; padding-inline: var(--space-sm); border: var(--rule); background: var(--color-paper); cursor: pointer; white-space: nowrap; }
.agent-tabs button[aria-selected="true"] { background: var(--color-ink); color: var(--color-paper); border-color: var(--color-ink); }
.agent-panel { min-height: 22rem; display: grid; align-content: start; gap: var(--space-lg); padding: var(--space-xl); border: var(--rule); background: var(--color-paper); }
.agent-panel dl { display: grid; gap: var(--space-md); }
.agent-panel dl div { display: grid; gap: var(--space-2xs); padding-block: var(--space-sm); border-block-end: var(--rule); }
.agent-panel dt { font-family: var(--font-mono); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-neutral); }
.agent-panel dd { font-weight: 700; }

.ledger-head { align-items: end; }
.ledger-date { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); white-space: nowrap; }
.ledger-list { border-block-start: var(--rule); }
.ledger-list details { border-block-end: var(--rule); }
.ledger-list summary { min-height: 72px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-md); align-items: center; cursor: pointer; font-family: var(--font-display); font-size: var(--text-md); font-weight: 700; }
.ledger-list summary span:last-child { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); }
.ledger-detail { display: grid; gap: var(--space-sm); padding: 0 0 var(--space-xl); color: var(--color-muted); }
.start-section { display: grid; gap: var(--space-xl); padding-block: var(--space-2xl); border-block-start: var(--rule); }
.start-copy { display: grid; gap: var(--space-md); }
.start-copy p { color: var(--color-muted); font-size: var(--text-md); }
.start-actions { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-lg); }

.site-footer { background: var(--color-graphite); color: var(--color-on-dark); }
.footer-grid { display: grid; gap: var(--space-2xl); padding-block: var(--space-3xl) var(--space-xl); }
.footer-statement { max-width: 15ch; font-family: var(--font-display); font-size: clamp(var(--text-2xl), 7vw, var(--text-display)); font-weight: 700; line-height: 0.98; letter-spacing: -0.05em; }
.footer-meta { display: flex; flex-wrap: wrap; gap: var(--space-md) var(--space-xl); }
.footer-meta a, .footer-meta button { color: var(--color-on-dark); white-space: nowrap; }
.footer-note { color: var(--color-on-dark-muted); font-family: var(--font-mono); font-size: var(--text-xs); }

dialog { padding: 0; border: 1px solid var(--color-rule-strong); background: var(--color-paper); color: var(--color-ink); }
dialog::backdrop { background: var(--color-overlay); }
.work-dialog { position: fixed; inset: 0; width: min(calc(100% - 2rem), 64rem); max-height: min(88dvh, 50rem); margin: auto; overflow: auto; }
.work-dialog[open] { display: grid; }
.dialog-close { position: sticky; inset-block-start: var(--space-sm); margin: var(--space-sm) var(--space-sm) 0 auto; z-index: var(--z-raised); min-height: 44px; padding-inline: var(--space-md); border: var(--rule); background: var(--color-paper); cursor: pointer; }
.dialog-preview { min-height: 18rem; margin: var(--space-sm); background: var(--color-paper-2); border: var(--rule); }
.dialog-copy { display: grid; align-content: start; gap: var(--space-lg); padding: var(--space-xl); }
.dialog-copy dl { display: grid; gap: var(--space-md); }
.dialog-copy dl div { display: grid; grid-template-columns: 7rem 1fr; gap: var(--space-md); border-block-end: var(--rule); padding-block: var(--space-sm); }
.dialog-copy dt { color: var(--color-neutral); font-size: var(--text-sm); }
.dialog-copy dd { font-weight: 700; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: var(--space-md); align-items: center; }
.command-dialog { position: fixed; inset: 0; width: min(calc(100% - 2rem), 40rem); height: fit-content; max-height: min(80dvh, 40rem); margin: auto; overflow: hidden; }
.command-box { display: grid; }
.command-box > label { padding: var(--space-lg) var(--space-lg) var(--space-sm); font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; }
.command-box input { min-height: 54px; margin: 0 var(--space-lg) var(--space-md); padding-inline: var(--space-md); border: var(--rule); outline: 2px solid transparent; background: var(--color-paper-2); color: var(--color-ink); }
.command-box input:focus-visible { outline-color: var(--color-focus); }
.command-results { max-height: 19rem; overflow-y: auto; border-block: var(--rule); }
.command-option { width: 100%; min-height: 58px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: var(--space-md); padding-inline: var(--space-lg); border: 0; border-block-end: var(--rule); background: var(--color-paper); text-align: start; cursor: pointer; }
.command-option[aria-selected="true"] { background: var(--color-accent-soft); }
.command-option span:last-child { font-family: var(--font-mono); color: var(--color-neutral); font-size: var(--text-xs); }
.command-help { display: flex; align-items: center; gap: var(--space-xs); padding: var(--space-sm) var(--space-lg); color: var(--color-neutral); font-size: var(--text-xs); }

html[data-vibe="quiet"] { --color-accent: var(--vibe-quiet-accent); --color-accent-soft: var(--vibe-quiet-soft); }
html[data-vibe="loud"] { --color-accent: var(--vibe-loud-accent); --color-accent-soft: var(--vibe-loud-soft); }
html[data-vibe="wild"] { --color-accent: var(--vibe-wild-accent); --color-accent-hover: var(--vibe-wild-hover); --color-accent-soft: var(--vibe-wild-soft); }
html[data-vibe="quiet"] .signal-grid { transform: scale(0.88); transform-origin: bottom right; }
html[data-vibe="loud"] .type-line, html[data-vibe="wild"] .type-line { font-size: var(--text-3xl); }
html[data-vibe="wild"] .signal-grid { transform: rotate(-4deg); }

.reveal { opacity: 0; transform: translateY(8px); animation: reveal var(--dur-long) var(--ease-out) forwards; animation-delay: calc(var(--i, 0) * 80ms); }
@keyframes reveal { to { opacity: 1; transform: none; } }

@media (hover: hover) and (pointer: fine) {
  .button:hover { background: var(--color-accent-hover); color: var(--color-accent-ink); border-color: var(--color-accent-hover); transform: translateY(-1px); }
  .button-ghost:hover { background: var(--color-paper-3); color: var(--color-ink); border-color: var(--color-ink); }
  .button-dark:hover { background: var(--color-accent); color: var(--color-accent-ink); border-color: var(--color-accent); }
  .desktop-nav a:hover, .nav-disclosure:hover { background: var(--color-paper-2); }
  .study-card:hover .study-art { border-color: var(--color-ink); }
  .filter-chip:hover { background: var(--color-paper-2); }
}

@media (min-width: 40rem) {
  .section-shell, .header-shell { width: min(100% - 3rem, var(--container)); }
  .button-small { display: inline-flex; }
  .vibe-dial { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .honesty-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .build-note-grid { grid-template-columns: 1fr 1fr auto; align-items: center; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery .study-card:first-child { grid-column: span 2; }
  .gallery .study-card:first-child .study-art { min-height: 24rem; }
  .section-head { grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-featured { grid-row: span 2; min-height: 39rem; }
  .start-section { grid-template-columns: minmax(0, 1.4fr) auto; align-items: end; }
  .work-dialog[open] { grid-template-columns: 1.1fr 0.9fr; }
  .dialog-close { position: absolute; inset-inline-end: var(--space-sm); }
  .dialog-preview { min-height: 34rem; }
}

@media (min-width: 60rem) {
  .desktop-nav, .command-trigger { display: flex; }
  .menu-trigger { display: none; }
  .hero { grid-template-columns: minmax(0, 7fr) minmax(24rem, 5fr); align-items: center; min-height: 43rem; }
  .services-layout { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); }
  .services-intro { position: sticky; inset-block-start: calc(var(--banner-height) + var(--space-xl)); }
  .service-row { grid-template-columns: auto minmax(0, 1fr) auto; align-items: start; }
  .service-row .text-link { grid-column: auto; }
  .lab-grid { grid-template-columns: minmax(20rem, 0.85fr) minmax(0, 1.15fr); }
  .brief-form { padding: var(--space-xl); }
  .brief-output pre { min-height: 42rem; }
  .agent-layout { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); }
  .agent-intro { position: sticky; inset-block-start: calc(var(--banner-height) + var(--space-xl)); }
  .footer-grid { grid-template-columns: 1.5fr 1fr; }
  .footer-note { grid-column: 1 / -1; }
}

@media (min-width: 90rem) {
  .section-shell, .header-shell { width: min(100% - 6rem, var(--container)); }
  .gallery { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .gallery .study-card { grid-column: span 4; }
  .gallery .study-card:first-child { grid-column: span 7; }
  .gallery .study-card:nth-child(2) { grid-column: span 5; }
  .gallery .study-card:nth-child(3), .gallery .study-card:nth-child(6) { grid-column: span 5; }
  .gallery .study-card:nth-child(4), .gallery .study-card:nth-child(5) { grid-column: span 7; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 150ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; }
  .reveal { opacity: 1; transform: none; animation: none; }
  .study-card.reveal-pending { opacity: 1; transform: none; transition: none; }
  html[data-vibe] .signal-grid { transform: none; }
}