/* Hallmark · redesign: full · shape: Photographic · genre: editorial · theme: Editorial (by request) with the brand green from the logo and Archivo (close to the old Helvetica) instead of Bricolage and Source Serif · job: hire · draw: 7adf6c
 * hero: Stage · nav: slab · footer: letter close · imagery: photographs, 13 (10 the firm's own, 3 Commons stand-ins of roofers at work, marked Symbolbild) · signature: the job ads as a brand-green band right under the hero, as on the old page
 * axes: light/display-condensed/brand-green · posture: restrained · contrast: pass · fold: pass · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H4 E4 S5 R3 V4 · weakest: R, the user asked for many pictures; kept every rail item to a real project caption and cut nothing for count */
/* waive 83: photo share above a third, the user asked for "viele Bilder" and the firm's work is the proof */
/* waive F4: the job buttons take the brand green on purpose, the careers band is the page's second job; the hero's second action is the quiet outline (linter reads the shared .btn base) */
/* answered: 58 at 480 words, the redesign keeps the owner's job-ad wording */
/* answered: the history loop moves on purpose (user request); it pauses off-screen, on hover and focus, has a Pause button and is static under reduced motion */
/* waive 11: the reference photos lift and zoom slightly on hover at the user's request; the zoom stays inside the rounded frame and is off under reduced motion */
/* answered: draft notice above the nav is required for a prototype of a real firm */
@import url("./tokens.css");
@import url("./base.css");

@font-face { font-family: "Archivo"; src: url("fonts/archivo-latin.woff2") format("woff2"); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; }

:root {
  --nav-h: 76px;
  --radius-photo: 8px;
  --font-display: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --tracking-display: -0.018em;
  --text-display: clamp(2.5rem, 3.4vw + 1rem, 4rem);
  --text-section: clamp(1.75rem, 1.6vw + 1rem, 2.75rem);
  --text-display-s: clamp(1.75rem, 2vw + 1rem, 2.75rem);
  --color-brand: oklch(56% 0.16 150);
  --color-brand-deep: oklch(45% 0.13 150);
  --color-brand-ink: oklch(98% 0.01 150);
  --color-accent: var(--color-brand-deep);
  --color-focus: var(--color-brand);
}

body { color: var(--color-ink-2); font-size: 1.0625rem; line-height: 1.6; }
h1, h2, h3 { font-weight: var(--display-weight); font-variation-settings: "wdth" 90; color: var(--color-ink); font-variant-numeric: lining-nums tabular-nums; }
h1 { line-height: 0.98; font-size: clamp(2.5rem, 4vw + 1rem, 4.5rem); max-width: 12ch; }
small, figcaption, th, nav, label, .btn, .meta { font-family: var(--font-display); font-weight: 500; font-variation-settings: "wdth" 100; font-variant-numeric: lining-nums; }

.skip { position: absolute; left: var(--space-md); top: calc(-1 * var(--space-3xl)); z-index: var(--z-toast); padding: var(--space-xs) var(--space-md); background: var(--color-ink); color: var(--color-paper); }
.skip:focus-visible { top: var(--space-md); }

.draft { background: var(--color-paper-3); color: var(--color-ink-2); font-family: var(--font-display); font-variation-settings: "wdth" 100; font-size: var(--text-sm); }
.draft .container { padding-block: var(--space-xs); }

/* nav: slab with the firm's logo */
.slab { position: sticky; top: 0; z-index: var(--z-sticky-nav); background: var(--color-paper); border-bottom: var(--rule-heavy) solid var(--color-brand); }
.slab .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); min-height: var(--nav-h); }
.logo { display: block; }
.logo img { height: 46px; width: auto; }
.logo:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.slab ul { display: flex; gap: var(--space-lg); list-style: none; margin: 0; padding: 0; font-size: var(--text-md); }
.slab ul a { text-decoration: none; color: var(--color-ink); }
.slab ul a:hover { text-decoration: underline; text-decoration-color: var(--color-brand); }
.slab ul a:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs); min-height: 52px; padding: 0 var(--space-lg); border: var(--rule-hair) solid var(--color-ink); border-radius: 0; background: var(--color-ink); color: var(--color-paper); font-size: var(--text-md); line-height: 1; white-space: nowrap; text-decoration: none; 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); }
.btn:hover { background: var(--color-ink-2); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.btn--quiet { background: transparent; color: var(--color-ink); }
.btn--quiet:hover { background: var(--color-paper-2); }
.btn:disabled, .btn[aria-disabled="true"], .loop-toggle:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn svg { width: 20px; height: 20px; }

/* hero: stage */
.hero .container { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-3xl); align-items: center; min-height: calc(100dvh - var(--nav-h) - 40px); padding-block: var(--space-2xl); }
.hero__text { display: grid; gap: var(--space-lg); align-content: center; }
.hero .lead { color: var(--color-ink); max-width: 30ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-xs); }
.hero__facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: var(--rule-heavy) solid var(--color-ink); padding-top: var(--space-md); margin-top: var(--space-md); }
.hero__facts > div { padding-right: var(--space-md); }
.hero__facts > div + div { border-left: var(--rule-hair) solid var(--color-rule); padding-left: var(--space-md); }
.hero__facts b { display: block; font-family: var(--font-display); font-weight: 800; font-variation-settings: "wdth" 90; font-size: var(--text-lg); color: var(--color-ink); line-height: 1.15; overflow-wrap: break-word; hyphens: auto; -webkit-hyphens: auto; }
.hero__facts small { font-size: var(--text-sm); color: var(--color-muted); }

.photo { margin: 0; }
.photo [data-slot] { aspect-ratio: 4 / 3; }
.photo [data-slot] > img { outline: 1px solid color-mix(in oklab, var(--color-ink) 8%, transparent); outline-offset: -1px; }
.photo figcaption { margin-top: var(--space-sm); font-size: var(--text-sm); color: var(--color-muted); }
.hero .photo [data-slot] { min-height: 440px; }

.section { padding-block: var(--section-gap); }
.section--s { padding-block: var(--section-gap-s); }
.opens { border-top: var(--rule-heavy) solid var(--color-ink); padding-top: var(--space-lg); }
.head { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gap-columns); align-items: end; margin-bottom: var(--space-2xl); }

/* careers: the brand band */
.careers { background: var(--color-brand-deep); color: var(--color-brand-ink); }
.careers h2, .careers h3 { color: var(--color-brand-ink); }
.careers .head .lead { color: color-mix(in oklab, var(--color-brand-ink) 86%, transparent); }
.jobs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap-columns); }
.job { display: grid; grid-template-rows: auto 1fr; background: var(--color-paper); color: var(--color-ink-2); }
.job .photo [data-slot] { aspect-ratio: 16 / 9; }
.job .photo [data-slot] > img { outline: 0; }
.job__body { display: grid; gap: var(--space-md); align-content: start; padding: var(--space-xl); }
.job__body h3 { color: var(--color-ink); font-size: clamp(1.5rem, 1vw + 1rem, 2.125rem); line-height: 1.05; max-width: 20ch; }
.job__when { font-family: var(--font-display); font-variation-settings: "wdth" 100; font-weight: 500; font-size: var(--text-sm); color: var(--color-brand-deep); }
.job ul { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--space-xs); border-top: var(--rule-hair) solid var(--color-rule); padding-top: var(--space-md); font-size: var(--text-md); }
.job li { padding-left: var(--space-lg); position: relative; }
.job li svg { position: absolute; left: 0; top: 0.2em; width: 16px; height: 16px; color: var(--color-brand-deep); }
.job .btn { justify-self: start; margin-top: var(--space-xs); background: var(--color-brand-deep); border-color: var(--color-brand-deep); color: var(--color-brand-ink); }
.job .btn:hover { background: var(--color-ink); border-color: var(--color-ink); }
.job .credit { font-size: var(--text-xs); color: var(--color-muted); padding: var(--space-xs) var(--space-xl) 0; }
.apply { display: flex; flex-wrap: wrap; gap: var(--space-xs) var(--space-xl); align-items: baseline; margin-top: var(--space-xl); padding-top: var(--space-lg); border-top: var(--rule-hair) solid color-mix(in oklab, var(--color-brand-ink) 35%, transparent); font-size: var(--text-md); }
.apply b { font-family: var(--font-display); font-variation-settings: "wdth" 90; font-weight: 800; font-size: var(--text-xl); color: var(--color-brand-ink); }
.apply a { color: var(--color-brand-ink); }

/* services as a photo grid */
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2xl) var(--gap-columns); }
.svc { display: grid; gap: var(--space-sm); align-content: start; }
.svc .photo [data-slot] { aspect-ratio: 3 / 2; }
.svc h3 { font-size: clamp(1.375rem, 0.8vw + 1rem, 1.875rem); line-height: 1; margin-top: var(--space-xs); hyphens: auto; -webkit-hyphens: auto; }
.svc p { font-size: var(--text-md); }
.svc small { font-size: var(--text-sm); color: var(--color-muted); }
.svc--type { background: var(--color-paper-2); border-top: var(--rule-hair) solid var(--color-rule-2); padding: var(--space-xl); align-content: end; }
.audience { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap-columns); margin-top: var(--space-3xl); }
.audience a { display: grid; gap: var(--space-xs); padding: var(--space-xl) 0; border-top: var(--rule-heavy) solid var(--color-ink); text-decoration: none; color: var(--color-ink-2); }
.audience a:hover b { text-decoration: underline; text-decoration-thickness: 3px; text-decoration-color: var(--color-brand); }
.audience a:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.audience b { font-family: var(--font-display); font-weight: 800; font-variation-settings: "wdth" 90; font-size: var(--text-2xl); color: var(--color-ink); line-height: 1.05; }


/* references rail */
.rail { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(18rem, 30%); gap: var(--gap-columns); overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--gutter); padding-inline: max(var(--gutter), calc((100% - var(--container)) / 2 + var(--gutter))); padding-bottom: var(--space-md); overscroll-behavior-x: contain; list-style: none; margin: 0; }
.rail > li { scroll-snap-align: start; }
.rail:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.rail .photo [data-slot] { aspect-ratio: 4 / 5; }
.rail figcaption { color: var(--color-ink-2); font-size: var(--text-md); }
.rail figcaption small { display: block; color: var(--color-muted); font-size: var(--text-sm); }
.rail-hint { margin-top: var(--space-sm); font-size: var(--text-sm); color: var(--color-muted); font-family: var(--font-display); font-variation-settings: "wdth" 100; }

/* company band */
.band { background: var(--color-ink); color: var(--color-paper); }
.band h2 { color: var(--color-paper); }
.band .head .lead { color: color-mix(in oklab, var(--color-paper) 78%, transparent); }
.chron-loop { position: relative; overflow: hidden; border-top: var(--rule-hair) solid color-mix(in oklab, var(--color-paper) 25%, transparent); padding-top: var(--space-xl); }
.chron-track { display: flex; width: max-content; animation: chron-run 70s linear infinite; }
.chron-loop:not(.is-running) .chron-track { animation-play-state: paused; }
@keyframes chron-run { to { transform: translateX(-50%); } }
.chron { list-style: none; margin: 0; padding: 0; display: flex; }
.chron li { width: 320px; flex: none; padding-inline: var(--space-lg); border-left: var(--rule-hair) solid color-mix(in oklab, var(--color-paper) 25%, transparent); }
.chron b { display: block; font-family: var(--font-display); font-weight: 800; font-variation-settings: "wdth" 90; font-size: var(--text-display); line-height: 0.95; font-variant-numeric: lining-nums tabular-nums; color: var(--color-paper); }
.chron small { display: block; margin-top: var(--space-xs); font-size: var(--text-sm); color: var(--color-brand); }
.chron span { display: block; margin-top: var(--space-sm); font-size: var(--text-md); color: color-mix(in oklab, var(--color-paper) 78%, transparent); max-width: 26ch; }
.loop-toggle { margin-top: var(--space-lg); min-height: 44px; padding: 0 var(--space-md); background: transparent; color: var(--color-paper); border: var(--rule-hair) solid color-mix(in oklab, var(--color-paper) 45%, transparent); font-family: var(--font-display); font-variation-settings: "wdth" 100; font-size: var(--text-sm); cursor: pointer; transition: background-color var(--dur-short) var(--ease-out); }
.loop-toggle:hover { background: color-mix(in oklab, var(--color-paper) 12%, transparent); }
.loop-toggle:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
html:not(.js) .loop-toggle { display: none; }
html:not(.js) .chron-loop { overflow-x: auto; }
html:not(.js) .chron--copy { display: none; }
@media (prefers-reduced-motion: reduce) {
  .chron-track { animation: none; }
  .chron-loop { overflow-x: auto; }
  .chron--copy, .loop-toggle { display: none; }
}

.family { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); grid-template-areas: "photo video" "text cap"; gap: var(--space-md) var(--space-2xl); align-items: stretch; margin-top: var(--space-3xl); padding-top: var(--space-xl); border-top: var(--rule-hair) solid color-mix(in oklab, var(--color-paper) 25%, transparent); }
.family__photo { grid-area: photo; position: relative; min-height: 0; }
.family__photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 40% 35%; }
.family__text { grid-area: text; color: var(--color-paper); font: 400 var(--text-lg)/1.5 var(--font-body); text-align: center; max-width: 34ch; justify-self: center; margin-top: var(--space-sm); }
.video { grid-area: video; margin: 0; }
.video__cap { grid-area: cap; font-size: var(--text-sm); color: color-mix(in oklab, var(--color-paper) 70%, transparent); }
.video__cap a { color: var(--color-paper); }
.video__play, .video iframe { display: block; position: relative; width: 100%; aspect-ratio: 16 / 9; border: 0; padding: 0; background: var(--color-ink-2); cursor: pointer; }
.video__play img { width: 100%; height: 100%; object-fit: cover; }
.video__icon { position: absolute; left: 50%; top: 50%; width: 88px; height: 88px; margin: -44px 0 0 -44px; display: grid; place-items: center; background: var(--color-brand-deep); color: var(--color-brand-ink); border-radius: 50%; transition: transform var(--dur-short) var(--ease-out), background-color var(--dur-short) var(--ease-out); }
.video__icon svg { width: 36px; height: 36px; margin-left: var(--space-2xs); }
.video__play:hover .video__icon { transform: scale(1.06); background: var(--color-brand); }
.video__play:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.draft a { color: inherit; }

/* partners */
.partners { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: var(--rule-hair) solid var(--color-rule-2); }
.partners li { border-bottom: var(--rule-hair) solid var(--color-rule); }
.partners a { display: block; padding: var(--space-md) 0; font-family: var(--font-display); font-variation-settings: "wdth" 90; font-weight: 800; font-size: var(--text-xl); color: var(--color-ink); text-decoration: none; }
.partners a:hover { color: var(--color-brand-deep); }
.partners a:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.partners-note { margin-top: var(--space-lg); font-size: var(--text-md); }
.partners-note a { color: var(--color-ink); }

/* contact */
.contact { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-3xl); align-items: start; }
.phone { display: inline-block; margin-top: var(--space-xl); font-family: var(--font-display); font-weight: 800; font-variation-settings: "wdth" 90; font-size: clamp(2.75rem, 5vw + 1rem, 6rem); line-height: 0.95; color: var(--color-ink); text-decoration: none; letter-spacing: var(--tracking-display); font-variant-numeric: lining-nums tabular-nums; }
.phone:hover { text-decoration: underline; text-decoration-thickness: 4px; text-decoration-color: var(--color-brand); }
.phone:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.contact .lead { margin-top: var(--space-md); }
.contact dl { margin: 0; display: grid; grid-template-columns: max-content minmax(0, 1fr); border-top: var(--rule-heavy) solid var(--color-ink); }
.contact dt, .contact dd { margin: 0; padding-block: var(--space-md); border-bottom: var(--rule-hair) solid var(--color-rule); }
.contact dt { font-family: var(--font-display); font-variation-settings: "wdth" 100; font-weight: 500; font-size: var(--text-sm); color: var(--color-muted); padding-right: var(--space-xl); }
.contact dd a { color: var(--color-ink); }

/* footer: letter close */
.letter { border-top: var(--rule-heavy) solid var(--color-brand); padding-block: var(--space-3xl) var(--space-2xl); }
.letter .container { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gap-columns); align-items: end; }
.letter p.sign { font: 600 var(--text-2xl)/1.3 var(--font-body); color: var(--color-ink); }
.letter small { display: block; margin-top: var(--space-sm); font-size: var(--text-sm); color: var(--color-muted); }
.letter small a { color: var(--color-muted); }
.letter nav { display: flex; gap: var(--space-lg); justify-content: flex-end; font-size: var(--text-sm); }
.letter nav a { color: var(--color-ink-2); }

.callbar { display: none; }

@media (max-width: 60rem) {
  .slab ul { display: none; }
  .hero .container, .head, .contact, .letter .container, .jobs { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); }
  .hero .container { min-height: 0; gap: var(--space-lg); padding-block: var(--space-md) var(--space-2xl); }
  .hero .photo { order: -1; }
  .hero .photo [data-slot] { min-height: 0; aspect-ratio: 3 / 2; }
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .partners { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .family { grid-template-columns: minmax(0, 1fr); grid-template-areas: "video" "cap" "photo" "text"; }
  .family__photo { aspect-ratio: 4 / 3; margin-top: var(--space-lg); }
  .chron li { width: 260px; }
  .rail { grid-auto-columns: minmax(16rem, 70%); }
  .letter nav { justify-content: flex-start; }
}
@media (max-width: 40rem) {
  .services, .audience { grid-template-columns: minmax(0, 1fr); }
  .hero__facts { grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); }
  .hero__facts > div + div { border-left: 0; padding-left: 0; }
  .logo img { height: 36px; }
  .slab .btn { padding: 0 var(--space-md); }
  .job__body { padding: var(--space-lg); }
  .job .credit { padding-inline: var(--space-lg); }
  .rail { grid-auto-columns: minmax(14rem, 82%); }
  .callbar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); position: fixed; inset: auto 0 0 0; z-index: var(--z-sticky); border-top: var(--rule-heavy) solid var(--color-ink); }
  .callbar .btn { min-height: 56px; }
  .callbar .btn--quiet { background: var(--color-paper); }
  .letter { padding-bottom: calc(var(--space-2xl) + 60px); }
}

/* rounded photos and video */
[data-slot], .family__photo, .video__play, .video iframe, .lightbox__frame { border-radius: var(--radius-photo); overflow: hidden; }
.photo [data-slot] > img { border-radius: var(--radius-photo); }
.job { border-radius: var(--radius-photo); overflow: hidden; }
.job .photo [data-slot] { border-radius: 0; }

/* references: hover and open */
.ref-link { display: block; border-radius: var(--radius-photo); color: inherit; }
.ref-link [data-slot] { transition: transform var(--dur-long) var(--ease-out), box-shadow var(--dur-long) var(--ease-out); }
.ref-link [data-slot] > img { transition: transform 900ms var(--ease-out), filter var(--dur-long) var(--ease-out); }
.ref-link::after { content: ""; }
.ref-link:hover [data-slot] { transform: translateY(-6px); box-shadow: 0 18px 36px -18px color-mix(in oklab, var(--color-ink) 55%, transparent); }
.ref-link:hover [data-slot] > img, .ref-link:focus-visible [data-slot] > img { transform: scale(1.05); filter: saturate(1) contrast(1.06); }
.ref-link [data-slot]::after { content: ""; position: absolute; inset: auto var(--space-sm) var(--space-sm) auto; z-index: 2; width: 40px; height: 40px; border-radius: 50%; background: color-mix(in oklab, var(--color-paper) 92%, transparent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23161620' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M15 3h6v6M9 21H3v-6M21 3l-7 7M3 21l7-7'/%3E%3C/svg%3E") center / 18px no-repeat; opacity: 0; transform: translateY(6px); transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out); }
.ref-link:hover [data-slot]::after, .ref-link:focus-visible [data-slot]::after { opacity: 1; transform: none; }
.ref-link:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }

/* lightbox */
.lightbox { width: min(1200px, 100% - 2 * var(--gutter)); max-width: none; max-height: calc(100dvh - 2 * var(--space-xl)); padding: 0; border: 0; background: transparent; color: var(--color-paper); overflow: visible; }
.lightbox::backdrop { background: color-mix(in oklab, var(--color-ink) 88%, transparent); }
.lightbox[open] { animation: lb-in var(--dur-long) var(--ease-out); }
@keyframes lb-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } }
.lightbox figure { margin: 0; }
.lightbox__frame { aspect-ratio: 3 / 2; max-height: calc(100dvh - 180px); background: var(--color-ink-2); }
.lightbox__frame img { width: 100%; height: 100%; object-fit: cover; }
.lightbox__frame.is-moving img { animation: kenburns 14s ease-in-out infinite alternate; }
@keyframes kenburns { from { transform: scale(1) translateX(0); } to { transform: scale(1.1) translateX(var(--kb-x, 2%)); } }
.lightbox figcaption { margin-top: var(--space-md); font-size: var(--text-md); color: var(--color-paper); }
.lightbox__nav { display: flex; gap: var(--space-xs); justify-content: flex-end; margin-top: calc(-1 * var(--space-xl)); }
.lightbox__nav button { width: 48px; height: 48px; display: grid; place-items: center; border: var(--rule-hair) solid color-mix(in oklab, var(--color-paper) 40%, transparent); border-radius: 50%; background: transparent; color: var(--color-paper); cursor: pointer; transition: background-color var(--dur-short) var(--ease-out); }
.lightbox__nav button:hover { background: color-mix(in oklab, var(--color-paper) 14%, transparent); }
.lightbox__nav button:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.lightbox__nav svg { width: 22px; height: 22px; }
@media (max-width: 40rem) { .lightbox__nav { margin-top: var(--space-md); justify-content: center; } }
@media (prefers-reduced-motion: reduce) {
  .ref-link [data-slot], .ref-link [data-slot] > img { transition: none; }
  .ref-link:hover [data-slot], .ref-link:hover [data-slot] > img { transform: none; }
  .lightbox__frame.is-moving img, .lightbox[open] { animation: none; }
}

/* photographs: the firm's own photos are colour-corrected in the files, so the theme's muting filter is off */
[data-slot] > img { filter: none; }

.btn--brand { background: var(--color-brand-deep); border-color: var(--color-brand-deep); color: var(--color-brand-ink); }
.btn--brand:hover { background: var(--color-ink); border-color: var(--color-ink); }

/* hero backdrop: warm light in clay and sand, taken from the brick and clay tiles in the firm's photos; green stays for logo and actions */
:root { --color-clay: oklch(72% 0.09 45); --color-sand: oklch(88% 0.05 75); --color-cream: oklch(97.5% 0.012 80); }
.hero { position: relative; isolation: isolate; overflow: hidden; background: var(--color-cream); }
.hero::before { content: ""; position: absolute; inset: -10%; z-index: -1; pointer-events: none; filter: blur(40px);
  background:
    radial-gradient(ellipse 38% 60% at 58% 52%, color-mix(in oklab, var(--color-clay) 45%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 45% 60% at 100% 100%, color-mix(in oklab, var(--color-sand) 95%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 40% 55% at 0% 0%, color-mix(in oklab, var(--color-sand) 80%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 30% 45% at 100% 0%, color-mix(in oklab, var(--color-clay) 30%, transparent) 0%, transparent 70%);
}
.hero .photo [data-slot] { box-shadow: 0 30px 60px -30px color-mix(in oklab, var(--color-ink) 45%, transparent); }
@media (max-width: 60rem) {
  .hero::before { background:
    radial-gradient(ellipse 80% 40% at 50% 25%, color-mix(in oklab, var(--color-clay) 40%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 70% 40% at 100% 100%, color-mix(in oklab, var(--color-sand) 90%, transparent) 0%, transparent 70%); }
}