/* ================= Tokens (lumen-CI) ================= */
:root {
  --ultramarin: #1a0892;
  --nacht: #0e0640;
  --papier: #f6f4ef;
  --nebel: #e9e6f7;
  --licht: #f5c86a;
  --grau: #5b5670;
  --tinte: #16122e;
  --linie: #dcd9e6;
  --f-head: "Tenor Sans", sans-serif;
  --f-text: "Jost", sans-serif;
  --rand: clamp(1.25rem, 4vw, 3.5rem);
  --max: 1360px;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { interpolate-size: allow-keywords; }
body { margin: 0; background: var(--papier); color: var(--tinte); font: 300 18px/1.7 var(--f-text); -webkit-font-smoothing: antialiased; }
strong { font-weight: 500; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--licht); outline-offset: 3px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--rand); }
h1, h2, h3 { font-family: var(--f-head); font-weight: 400; margin: 0; }
h2 { font-size: 1.15rem; letter-spacing: .2em; text-transform: uppercase; color: var(--ultramarin); }
.linie { background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat; padding-bottom: 3px; }

/* ================= Navigation ================= */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(246,244,239,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--linie); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.marke { display: flex; align-items: center; gap: .9rem; font: 400 .9rem var(--f-head); letter-spacing: .22em; color: var(--ultramarin); }
.marke i { width: 34px; height: 34px; border-radius: 50%; background: var(--ultramarin); display: block; }
.nav ul { display: flex; gap: 2.2rem; list-style: none; margin: 0; padding: 0; font-size: .95rem; font-weight: 400; }
.nav ul a:hover { color: var(--ultramarin); }
.sprache { display: flex; gap: .6rem; padding-left: 2.2rem; border-left: 1px solid var(--linie); }
.sprache a { color: var(--grau); }
.sprache a[aria-current] { color: var(--tinte); }

/* ================= Hero: Nacht, Kreis, Namen im Bogen ================= */
.hero { background: var(--nacht); color: #fff; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2rem; align-items: center; min-height: min(86vh, 820px); padding-top: 4rem; padding-bottom: 4rem; }
.hero-text { grid-column: 1 / span 6; }
.hero h1 { font-size: clamp(2.8rem, 5.6vw, 5.4rem); line-height: 1.04; letter-spacing: .01em; }
.hero p { margin: 2rem 0 0; font-size: 1.15rem; color: #cfcaf0; max-width: 32rem; }
.hero-links { display: flex; gap: 2rem; margin-top: 2.2rem; font-weight: 400; }
.kreis { grid-column: 7 / -1; position: relative; aspect-ratio: 1; width: 100%; max-width: 620px; justify-self: end; }
.kreis svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.kreis .foto { position: absolute; inset: 13%; border-radius: 50%; overflow: hidden; box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 0 140px 10px rgba(245,200,106,.18); }
.kreis .foto img { width: 100%; height: 100%; object-fit: cover; }
.kreis text { font: 400 13px var(--f-head); letter-spacing: 5px; fill: #cfcaf0; }

/* ================= Sektionen ================= */
.sektion { padding: clamp(5rem, 12vh, 8rem) 0 0; }
.kopf { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2rem; margin-bottom: 2.8rem; align-items: baseline; }
.kopf h2 { grid-column: 1 / span 4; }
.kopf p { grid-column: 5 / span 7; margin: 0; font-size: 1.35rem; line-height: 1.55; color: var(--tinte); max-width: 40rem; }

/* Studio: zwei Handschriften */
.studio { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2rem; }
.person { grid-column: span 4; border-top: 1px solid var(--ultramarin); padding-top: 1.2rem; }
.person:first-child { grid-column: 5 / span 4; }
.person h3 { font-size: 1.15rem; letter-spacing: .06em; color: var(--ultramarin); }
.person p { margin: .5rem 0 0; color: var(--grau); font-size: 1rem; }

/* Leistungen */
.leistungen { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.leistungen li { background: #fff; border-radius: 4px; padding: 1.8rem 1.6rem; }
.leistungen li::before { content: ""; display: block; width: 14px; height: 14px; border-radius: 50%; background: var(--ultramarin); margin-bottom: 1.4rem; }
.leistungen h3 { font-size: 1.05rem; letter-spacing: .08em; margin-bottom: .6rem; }
.leistungen p { margin: 0; color: var(--grau); font-size: .98rem; }

/* ================= Arbeiten: Liste mit Akkordeon ================= */
.projekte { border-top: 1px solid var(--ultramarin); }
.projekt { border-bottom: 1px solid var(--linie); }
.projekt summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 200px 1fr auto; gap: 2rem; align-items: center; padding: 1.4rem 0; }
.projekt summary::-webkit-details-marker { display: none; }
.projekt summary img { width: 200px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 4px; }
.projekt .titel { display: flex; align-items: baseline; gap: 1.2rem; flex-wrap: wrap; }
.projekt h3 { font-size: 1.35rem; letter-spacing: .03em; color: var(--tinte); }
.projekt .jahr { font-size: .9rem; color: var(--grau); font-weight: 400; }
.projekt .kurz { margin: .4rem 0 0; color: var(--grau); max-width: 60ch; font-size: 1rem; }
.projekt .schalter { width: 46px; height: 46px; border: 1px solid var(--ultramarin); color: var(--ultramarin); border-radius: 50%; position: relative; flex: none; transition: background .25s, color .25s; }
.projekt .schalter::before, .projekt .schalter::after { content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); transition: transform .35s var(--ease); }
.projekt .schalter::after { transform: translate(-50%, -50%) rotate(90deg); }
.projekt > summary:hover .schalter, .projekt[open] > summary .schalter { background: var(--ultramarin); color: #fff; }
.projekt[open] > summary .schalter::after { transform: translate(-50%, -50%) rotate(0deg); }
.projekt::details-content { block-size: 0; overflow: hidden; transition: block-size .5s var(--ease), content-visibility .5s allow-discrete; }
.projekt[open]::details-content { block-size: auto; }
.detail { display: grid; grid-template-columns: 200px 1fr; gap: 2rem; padding: .4rem 0 2.8rem; }
.galerie { grid-column: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.galerie img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 4px; cursor: zoom-in; background: var(--nebel); }
.galerie.quer img { aspect-ratio: 4 / 3; }
.galerie.eins { grid-template-columns: 1fr; max-width: 560px; }
.beschreibung { grid-column: 2; display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem; margin-top: 1.8rem; }
.beschreibung p { margin: 0 0 1rem; max-width: 60ch; }
.beschreibung ul { margin: 0; padding-left: 1.1rem; }
.beschreibung li { margin-bottom: .45rem; }
.fakten { margin: 0; font-size: .95rem; }
.fakten dt { font: 400 .72rem var(--f-head); letter-spacing: .16em; text-transform: uppercase; color: var(--grau); }
.fakten dd { margin: .2rem 0 1rem; }


/* ================= Auftraggeber-Gruppe (z. B. Studio mit mehreren Projekten) ================= */
.kunde summary .stapel { position: relative; width: 200px; aspect-ratio: 4 / 3; }
.kunde summary .stapel span { position: absolute; inset: 0; border-radius: 4px; background: var(--nebel); border: 1px solid #fff; }
.kunde summary .stapel span:nth-child(1) { transform: translate(10px, -10px); background: #d9d4ef; }
.kunde summary .stapel span:nth-child(2) { transform: translate(5px, -5px); background: #e2def3; }
.kunde summary .stapel span:nth-child(3) { display: grid; place-items: center; font: 400 1.05rem var(--f-head); letter-spacing: .3em; color: var(--ultramarin); background: #fff; }
.kunde summary .stapel span img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; display: block; }
.kunde .anzahl { font-size: .9rem; color: var(--ultramarin); font-weight: 400; border: 1px solid var(--ultramarin); border-radius: 999px; padding: .05rem .7rem; }
.kunde .intro { grid-column: 2; margin: 0 0 1.4rem; max-width: 60ch; }
.unterprojekte { grid-column: 2; border-top: 1px solid var(--linie); }
.unterprojekte .projekt summary { grid-template-columns: 120px 1fr auto; padding: 1rem 0; gap: 1.4rem; }
.unterprojekte .projekt summary img, .unterprojekte .platzhalter { width: 120px; }
.unterprojekte .projekt h3 { font-size: 1.1rem; }
.unterprojekte .projekt .schalter { width: 36px; height: 36px; }
.unterprojekte .detail { grid-template-columns: 120px 1fr; }
.platzhalter { aspect-ratio: 4 / 3; border-radius: 4px; background: repeating-linear-gradient(45deg, var(--nebel) 0 8px, #f1eff9 8px 16px); display: grid; place-items: center; font-size: .72rem; color: var(--grau); text-align: center; }
.galerie .platzhalter { width: 100%; aspect-ratio: 3 / 4; }
.lightbox { position: fixed; inset: 0; background: rgba(14,6,64,.96); display: none; align-items: center; justify-content: center; z-index: 50; padding: 2rem; cursor: zoom-out; }
.lightbox.offen { display: flex; }
.lightbox img { max-height: 90vh; max-width: 92vw; object-fit: contain; }

/* ================= Kontakt ================= */
.kontakt { margin-top: clamp(6rem, 14vh, 9rem); background: var(--ultramarin); color: #fff; padding: clamp(5rem, 12vh, 8rem) 0 2.5rem; }
.kontakt h2 { color: #fff; font-size: clamp(2.2rem, 4.6vw, 4rem); letter-spacing: .02em; text-transform: none; line-height: 1.1; max-width: 16ch; }
.kontakt-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2rem; margin-top: 2.5rem; align-items: end; }
.kontakt-grid p { grid-column: 1 / span 5; margin: 0; color: #cfcaf0; }
.kontakt .mail { grid-column: 7 / -1; justify-self: end; font: 400 clamp(1.3rem, 2.4vw, 2rem) var(--f-head); letter-spacing: .04em; }
.fuss { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: clamp(4rem, 10vh, 6rem); padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.2); font-size: .88rem; color: #cfcaf0; font-weight: 400; }
.fuss nav { display: flex; gap: 1.8rem; flex-wrap: wrap; }
.fuss a:hover { color: #fff; }

@media (prefers-reduced-motion: no-preference) {
  .hero-text > * { animation: hoch 1.1s var(--ease) both; }
  .hero-text > *:nth-child(2) { animation-delay: .12s; } .hero-text > *:nth-child(3) { animation-delay: .2s; }
  .kreis .foto { animation: auf 1.6s .2s var(--ease) both; }
  .kreis svg { animation: dreh 1.8s .3s var(--ease) both; }
}
@media (prefers-reduced-motion: reduce) { .projekt::details-content { transition: none; } }
@keyframes hoch { from { opacity: 0; transform: translateY(24px); } }
@keyframes auf { from { clip-path: circle(0% at 50% 50%); } to { clip-path: circle(50% at 50% 50%); } }
@keyframes dreh { from { opacity: 0; transform: rotate(-40deg); } }

@media (max-width: 900px) {
  .marke span { display: none; }
  .nav ul { gap: 1.1rem; font-size: .9rem; }
  .nav ul li.optional { display: none; }
  .sprache { padding-left: 1.1rem; }
  .hero .wrap, .kopf, .studio, .kontakt-grid, .beschreibung { grid-template-columns: 1fr; gap: 1.2rem; }
  .hero .wrap > *, .kopf > *, .studio > *, .kontakt-grid > * { grid-column: 1 / -1 !important; justify-self: start !important; }
  .kreis { max-width: 420px; margin: 1rem auto 0; justify-self: center !important; }
  .leistungen { grid-template-columns: 1fr 1fr; }
  .projekt summary { grid-template-columns: 96px 1fr auto; gap: 1rem; }
  .projekt summary img { width: 96px; }
  .projekt h3 { font-size: 1.1rem; }
  .projekt .kurz { display: none; }
  .detail { grid-template-columns: 1fr; }
  .galerie, .beschreibung { grid-column: 1; }
  .kunde summary .stapel { width: 96px; }
  .kunde .intro, .unterprojekte { grid-column: 1; }
  .unterprojekte .detail { grid-template-columns: 1fr; }
  .unterprojekte .projekt summary { grid-template-columns: 72px 1fr auto; }
  .unterprojekte .projekt summary .platzhalter { width: 72px; }
}