/* Dorweiler & Reimertz — index + impressum; sizes measured from the reference at 1440px */

/* == Tokens == */
:root {
  --bg: #fff; --ink: #000; --muted: #767676; --line: #e4e4e4;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --pad: clamp(16px, 1.1vw, 24px);
  --pad-t: max(var(--pad), env(safe-area-inset-top));
  --pad-b: max(var(--pad), env(safe-area-inset-bottom));
  --pad-l: max(var(--pad), env(safe-area-inset-left));
  --pad-r: max(var(--pad), env(safe-area-inset-right));
  --gap: clamp(12px, 1.4vw, 20px);
  /* type caps where --fs-claim does (~1956px) */
  --fs-small: clamp(11px, .8vw, 15px);
  --fs-meta: clamp(11px, .97vw, 19px);
  --fs-body: clamp(14px, 1.25vw, 24px);
  --fs-h2: clamp(26px, 3.2vw, 62px);
  --fs-claim: clamp(34px, 4.5vw, 88px);
  --fs-names: 14px; --fs-text: 15px; /* fixed */
  --space-m: clamp(24px, 2.4vw, 40px);
  --space-l: clamp(72px, 9.5vw, 160px);
  --space-xl: clamp(104px, 14.5vw, 260px);
  --ease: cubic-bezier(.2, .7, .2, 1); --dur: .6s;
}

/* == Fonts (self-hosted) == */
@font-face { font-family: "Inter"; src: url("../fonts/inter-var.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("../fonts/newsreader-300.woff2") format("woff2"); font-weight: 300; font-display: swap; }

/* == Base == */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; } /* no grey flash on tap; keyboard focus stays visible */
html:focus-within { scroll-behavior: smooth; }
html:has(dialog[open]) { overflow: hidden; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 var(--fs-body)/1.3 var(--sans); letter-spacing: -.01em; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
h1, h2, h3, p, ul, ol, dl, dd { margin: 0; padding: 0; font: inherit; }
p { text-wrap: pretty; }
ul, ol { list-style: none; }
img, picture { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: underline 1px transparent; text-underline-offset: .2em; transition: text-decoration-color .3s var(--ease), color .3s var(--ease); }
a:hover { text-decoration-color: currentColor; }
button { font: inherit; letter-spacing: inherit; color: inherit; text-align: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
::selection { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 1px solid currentColor; outline-offset: 3px; }

/* == Layout primitives == */
.grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gap); padding-inline: var(--pad-l) var(--pad-r); }
.meta { font-size: var(--fs-meta); font-weight: 450; line-height: 1.3; letter-spacing: .02em; text-transform: uppercase; }
.trim { text-box: trim-start cap alphabetic; }
.prose > * + * { margin-top: 1.3em; }
.prose p, .footer__text, .menu__meta, .footer__label, .contacts, .footer__bottom { font-size: var(--fs-text); }
.media { width: 100%; background: var(--line); }
.sprite { display: none; }
.icon { display: inline-block; width: .7em; height: .7em; fill: none; stroke: currentColor; stroke-width: 1.25; transition: transform .4s var(--ease); }
.link { display: inline-flex; align-items: center; gap: .35em; font-size: var(--fs-text); }
.link:hover .icon { transform: translate(var(--nudge, 3px)); }
.icon--out { --nudge: 2px, -2px; }
.icon--up { --nudge: 0, -3px; }
.icon--down { --nudge: 0, 3px; }
.skip { position: absolute; z-index: 20; left: var(--pad); top: var(--pad); padding: .5em .8em; background: var(--ink); color: var(--bg); translate: 0 -200%; }
.skip:focus { translate: none; }

/* == Header == */
.site-header { position: absolute; inset: 0 0 auto; padding-top: var(--pad-t); align-items: start; } /* no z-index: .corner blends with the page */
.site-header > * { grid-row: 1; }
.site-header__names { grid-column: 1 / 4; font-size: var(--fs-names); text-wrap: balance; }

/* Fixed burger/close on the header caps; white + difference = black on white, visible on images */
.corner { position: fixed; z-index: 10; top: calc(var(--pad-t) + var(--fs-names) * .36 - 22px); right: calc(var(--pad-r) - 10px); display: grid; place-items: center; width: 44px; height: 44px; color: var(--bg); mix-blend-mode: difference; }
.corner:focus-visible { outline-offset: -6px; }
.burger::before, .burger::after { content: ""; grid-area: 1 / 1; width: 24px; height: 1.5px; background: currentColor; transition: transform .5s var(--ease); }
.burger::before { transform: translateY(-3.5px); }
.burger::after { transform: translateY(3.5px); }
.burger--close::before { transform: rotate(45deg) scaleX(.85); }
.burger--close::after { transform: rotate(-45deg) scaleX(.85); }
.no-js button.burger { display: none; }

/* == Hero == */
.hero { min-height: 100vh; min-height: 100svh; padding-block: var(--pad-t) var(--pad-b); grid-template-rows: auto 1fr; row-gap: var(--space-m); }
.hero__media { grid-column: 4 / span 2; }
/* Indent = column 4 (image edge); descenders on the padding */
.claim { grid-column: 1 / -1; align-self: end; font: 300 var(--fs-claim)/1 var(--serif); letter-spacing: -.02em; text-indent: calc(25% + var(--gap) / 4); text-box: trim-end cap text; }
.claim a { text-decoration-color: currentColor; text-decoration-thickness: max(1px, .03em); text-underline-offset: .1em; transition: text-underline-offset .5s var(--ease); }
.claim a:hover { text-underline-offset: .16em; }

/* == Studio == */
.studio { padding-top: var(--space-xl); }
.studio__media { grid-column: 7 / span 2; }
.studio__row { margin-top: var(--space-m); padding-top: calc(var(--space-m) * .8); border-top: 1px solid var(--line); align-items: start; }
.studio__label { grid-column: 1 / 4; font-size: var(--fs-text); }
.studio__body { grid-column: 7 / 11; max-width: 21em; }
.studio__link { grid-column: 11 / -1; justify-self: end; }

/* == Work / projects == */
.work { padding-top: var(--space-l); row-gap: var(--space-xl); align-items: start; }
.work__title { grid-column: 1 / 8; font: 300 var(--fs-h2)/1.1 var(--serif); letter-spacing: -.01em; }
.projects { grid-column: 7 / -1; grid-row: 2; position: relative; }

/* Open = aria-expanded; .is-active = hovered/focused row */
.project { position: relative; border-bottom: 1px solid var(--line); scroll-margin-top: var(--space-m); }
.project::after { content: ""; position: absolute; inset: auto 0 -1px; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform var(--dur) var(--ease); }
.project.is-active::after { transform: scaleX(.28); }
.project:has([aria-expanded="true"])::after { transform: none; }

.project__trigger { display: grid; grid-template-columns: 15% 1fr auto; align-items: center; width: 100%; padding-block: var(--space-m); }
.project__num, .project__meta { font-size: var(--fs-meta); font-variant-numeric: tabular-nums; letter-spacing: 0; }
.project__name { font-size: var(--fs-text); line-height: 1.2; letter-spacing: -.02em; }
.project__meta { display: inline-flex; align-items: center; gap: 1em; font-size: var(--fs-small); color: var(--muted); }
.project__trigger > * { transition: color .3s; }
.icon--toggle { width: 10px; height: 10px; transition: transform var(--dur) var(--ease); }
[aria-expanded="true"] .icon--toggle { transform: rotate(45deg); }
.no-js .icon--toggle { display: none; }
.project:is(.is-active, :has([aria-expanded="true"])) .project__meta { color: var(--ink); }
.is-previewing .project:not(.is-active, :has([aria-expanded="true"])) :is(.project__num, .project__name) { color: var(--muted); }

/* Accordion: rows 0fr → 1fr; without JS all panels stay open. The panel clips: its height leads the row inside. */
.project__panel { display: grid; grid-template-rows: 1fr; overflow: hidden; transition: grid-template-rows var(--dur) var(--ease); }
.project__inner { min-height: 0; }
.js .project:has([aria-expanded="false"]) .project__panel { grid-template-rows: 0fr; }
.js .project:has([aria-expanded="false"]) .project__inner { visibility: hidden; transition: visibility 0s var(--dur); }
.is-instant .project:has([aria-expanded="false"]) :is(.project__panel, .project__inner) { transition: none; } /* touch: closing panels snap shut (main.js) */
.project__content { padding: 0 0 var(--space-m) 15%; }
.project__content p { width: 80%; }
.project__img { width: min(240px, 70%); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(9em, 1fr)); gap: .8em var(--gap); width: 100%; margin-top: 2em; }
.facts dt { font-size: var(--fs-small); color: var(--muted); text-transform: uppercase; letter-spacing: .02em; }
.facts dd { font-size: var(--fs-text); font-weight: 400; }

/* Preview: built by JS from the panel images (>=1024px) */
.preview { display: none; grid-column: 1 / span 2; grid-row: 2; position: relative; aspect-ratio: 3 / 4; overflow: hidden; transition: transform var(--dur) var(--ease); }
.preview img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.05); transition: opacity .5s var(--ease), transform 1.2s var(--ease); }
.preview .is-prev { opacity: 1; transform: none; }
.preview .is-current { z-index: 1; opacity: 1; transform: none; }
@media (min-width: 1024px) {
  .js .preview { display: block; }
  .js .project__img { display: none; }
  .js .project { scroll-margin-top: calc(var(--pad) + 6.5vw); } /* deep links: room for the preview */
}

/* == Menu == */
.menu { width: 100%; max-width: none; height: 100%; max-height: none; margin: 0; padding: 0; border: 0; background: var(--bg); color: var(--ink); opacity: 0; transition: opacity .45s var(--ease), overlay .45s allow-discrete, display .45s allow-discrete; }
.menu[open] { opacity: 1; }
.menu::backdrop { background: none; }
.menu__inner { min-height: 100%; padding-block: var(--space-l) var(--pad-b); grid-template-rows: 1fr auto; row-gap: var(--space-l); }
/* Numbers at 0%, links at 25%, meta at 25/50/75 */
.menu__nav, .menu__list, .menu__list li, .menu__meta { grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; }
.menu__nav { align-self: end; }
.menu__list { counter-reset: menu; }
.menu__list li { align-items: baseline; counter-increment: menu; }
.menu__list li::before { content: counter(menu, decimal-leading-zero) "."; grid-column: 1 / 4; font-size: var(--fs-small); color: var(--muted); font-variant-numeric: tabular-nums; }
.menu__list a { grid-column: 4 / -1; justify-self: start; font: 300 max(var(--fs-claim), 42px)/1.08 var(--serif); letter-spacing: -.02em; text-decoration: none; }
.menu__list:hover a:not(:hover) { color: var(--muted); }
.menu__meta { row-gap: .4em; }
.menu__meta li { grid-column: span 3; }
.menu__meta li:first-child { grid-column: 4 / span 3; }

/* Staggered fade + rise; the burger folds into the × */
.menu__list li, .menu__meta { opacity: 0; transform: translateY(12px); transition: opacity .6s var(--ease), transform .9s var(--ease); transition-delay: calc(var(--i, 0) * 70ms + 120ms); }
.menu__list li:nth-child(2) { --i: 1; }
.menu__list li:nth-child(3) { --i: 2; }
.menu__meta { --i: 3; }
.menu[open] :is(.menu__list li, .menu__meta) { opacity: 1; transform: none; }
@starting-style {
  .menu[open] { opacity: 0; }
  .menu[open] :is(.menu__list li, .menu__meta) { opacity: 0; transform: translateY(12px); }
  .menu[open] .burger--close::before { transform: translateY(-3.5px); }
  .menu[open] .burger--close::after { transform: translateY(3.5px); }
}

/* == Footer == */
.site-footer { padding-top: var(--space-l); }
.footer__text { grid-column: span 3; }
.footer__text:where(:first-child) { grid-column: 7 / span 3; }
.footer__contact { margin-top: var(--space-l); align-items: start; }
.footer__label { grid-column: 1 / 7; }
.contacts { grid-column: span 3; display: grid; gap: 1.1em; }
.contacts li { display: grid; overflow-wrap: anywhere; }
.contacts li > span:last-child { margin-top: 9px; font-size: 13px; letter-spacing: .2px; text-transform: uppercase; color: #949494; } /* Email, Studio … */
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5em var(--gap); padding-block: var(--pad) var(--pad-b); }
.footer__contact + .footer__bottom { margin-top: var(--space-xl); }

/* == Legal page == */
.legal { padding-top: var(--space-xl); }
.legal__section { align-items: start; }
.legal__section + .legal__section { margin-top: var(--space-l); padding-top: var(--space-m); border-top: 1px solid var(--line); }
.legal__title { grid-column: 1 / 7; font: 300 var(--fs-h2)/1.1 var(--serif); letter-spacing: -.01em; }
.legal__body { grid-column: 7 / span 4; }
.legal__body > :is(h2, h3):not(:first-child) { margin-top: 2.4em; }
.legal__body :is(h2, h3) + p { margin-top: .4em; }
.legal__body a { text-decoration-color: currentColor; }

/* == Tablet == */
@media (max-width: 1023px) {
  :root { --fs-claim: clamp(34px, 5.4vw, 46px); }
  .hero { padding-top: calc(var(--pad-t) + var(--fs-meta) * 2.6 + var(--space-m)); } /* image clears the header */
  .hero__media { grid-column: 4 / span 3; }
  .studio__media { grid-column: 7 / span 3; }
  .studio__label { grid-column: 1 / 7; }
  .studio__body, .legal__body { grid-column: 7 / -1; }
  .studio__link { grid-column: 7 / -1; justify-self: start; margin-top: var(--space-m); }
  .work__title, .projects { grid-column: 1 / -1; }
  .footer__text, .contacts { grid-column: 7 / -1; }
  .footer__text:where(:first-child) { grid-column: 1 / 7; }
  .contacts:where(:first-of-type) { grid-column: 1 / 7; }
  .footer__label { grid-column: 1 / -1; margin-bottom: var(--space-m); }
}

/* == Mobile == */
@media (max-width: 639px) {
  :root { --fs-claim: clamp(30px, 5.7svh, 36px); } /* short phones */
  .site-header__names { grid-column: 1 / 5; white-space: nowrap; }
  .hero__media { grid-column: 1 / span 6; }
  .studio__media { grid-column: 7 / -1; }
  :is(.studio__row, .footer__intro, .footer__contact, .legal__section) > * { grid-column: 1 / -1; }
  .studio__body, .legal__body { margin-top: var(--space-m); }
  .facts { grid-template-columns: 1fr; gap: .4em; }
  .facts div { display: grid; grid-template-columns: 5.5em 1fr; align-items: baseline; }
  .footer__text + .footer__text { margin-top: 1.3em; }
  .contacts + .contacts { margin-top: 1.1em; }
  .menu__meta { row-gap: 1em; }
  .menu__meta li:nth-child(n) { grid-column: 4 / -1; }
}

/* == Short landscape: the hero fits == */
@media (orientation: landscape) and (max-height: 540px) {
  :root { --fs-claim: clamp(26px, 8svh, 40px); }
  .hero__media { max-width: 30svh; }
}

/* == Reduced motion == */
@media (prefers-reduced-motion: reduce) {
  html:focus-within { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}