/* DONNAlab – Landingpage. Schwarz, Weiß, Türkis als Akzent. Keine Verläufe, keine Leuchteffekte. */

@font-face {
  font-family: "Montserrat";
  src: url("../fonts/montserrat-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --schwarz: #0a0a0b;
  --flaeche: #111213;
  --linie: #26282a;
  --weiss: #f5f6f6;
  --grau: #a3a7aa;
  --tuerkis: #01b9c4;

  --schrift: "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --rand: clamp(1.25rem, 5vw, 4rem);
  --breite: 78rem;
  --abstand: clamp(5rem, 12vw, 10rem);
  --kopf: 4.5rem;
  --weich: cubic-bezier(.2, .7, .2, 1);

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--schwarz);
  color: var(--weiss);
  font: 400 1.0625rem/1.65 var(--schrift);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }

h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }

a { color: inherit; }

::selection { background: var(--tuerkis); color: var(--schwarz); }

:focus-visible {
  outline: 2px solid var(--tuerkis);
  outline-offset: 4px;
}

.innen {
  width: 100%;
  max-width: calc(var(--breite) + 2 * var(--rand));
  margin-inline: auto;
  padding-inline: var(--rand);
}

.sprung {
  position: absolute;
  left: var(--rand);
  top: -4rem;
  z-index: 30;
  padding: .75rem 1rem;
  background: var(--tuerkis);
  color: var(--schwarz);
  font-weight: 700;
  text-decoration: none;
}
.sprung:focus { top: .75rem; }

/* ---------- Kopfleiste ---------- */

.kopf {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  height: var(--kopf);
  background: var(--schwarz);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.gerollt .kopf, .nav-offen .kopf { border-bottom-color: var(--linie); }

.kopf .innen {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.kopf-marke { display: block; flex: none; }
.kopf-marke img { width: 10.5rem; }

.nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.6vw, 2.5rem);
}

.nav a {
  position: relative;
  display: block;
  padding: .5rem 0;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  color: var(--grau);
  transition: color .2s ease;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: .15rem;
  height: 2px;
  background: var(--tuerkis);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--weich);
}
.nav a:hover, .nav a[aria-current="true"] { color: var(--weiss); }
.nav a:hover::after, .nav a[aria-current="true"]::after { transform: scaleX(1); }

.nav-knopf {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  margin-right: -.6rem;
  padding: 0;
  border: 0;
  background: none;
  color: var(--weiss);
  cursor: pointer;
}
.nav-knopf span {
  display: block;
  width: 1.5rem;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
  transition: transform .3s var(--weich);
}
.nav-offen .nav-knopf span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-offen .nav-knopf span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Knöpfe und Verweise ---------- */

.knopf {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem 1.6rem;
  border: 2px solid var(--weiss);
  background: var(--weiss);
  color: var(--schwarz);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}
.knopf:hover { background: var(--tuerkis); border-color: var(--tuerkis); }

.knopf-leer { background: none; color: var(--weiss); border-color: var(--linie); }
.knopf-leer:hover { background: none; border-color: var(--tuerkis); color: var(--tuerkis); }

.pfeil {
  display: inline-block;
  transition: transform .3s var(--weich);
}
a:hover .pfeil { transform: translateX(.3rem); }

/* ---------- Hero ---------- */

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: calc(var(--kopf) + 3rem) 5rem;
}

.hero .innen {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
}

.hero h1 {
  font-size: clamp(2.5rem, 5.6vw, 5rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.025em;
  text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--tuerkis); }

.hero-text p {
  max-width: 36rem;
  margin-top: 2rem;
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  color: var(--grau);
}

.hero-knoepfe {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.75rem;
}

.hero-logo { justify-self: end; width: 100%; max-width: 30rem; container-type: inline-size; }
.hero-logo img { width: 100%; }

/* Der Claim läuft wie im Logo über die volle Breite der Wortmarke: Schriftgröße folgt der Logobreite. */
.claim {
  margin: 4.2cqw -.36em 0 0;
  font-size: 2.96cqw;
  font-weight: 500;
  letter-spacing: .36em;
  text-transform: uppercase;
  text-align: center;
  white-space: nowrap;
  color: var(--weiss);
}

/* ---------- Abschnitte ---------- */

.abschnitt {
  padding-block: var(--abstand);
  border-top: 1px solid var(--linie);
  scroll-margin-top: var(--kopf);
}

.marke {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--grau);
}
.marke::before {
  content: "";
  flex: none;
  width: 1.75rem;
  height: .5rem;
  background: var(--tuerkis);
  transform: skewX(-45deg);
}
.marke b { font-weight: 600; color: var(--weiss); }

h2 {
  font-size: clamp(2rem, 4.4vw, 3.75rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.zweispaltig {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: start;
}

.fliess { font-size: clamp(1.0625rem, 1.4vw, 1.1875rem); color: var(--grau); }
.fliess + .fliess { margin-top: 1.25rem; }
.fliess strong { font-weight: 600; color: var(--weiss); }

/* Bilder: gelieferte Motive in ihrer eigenen Größe, schlicht gerahmt */

.bild { margin: 0; border: 1px solid var(--linie); background: var(--flaeche); }
.bild img { width: 100%; aspect-ratio: 504 / 248; object-fit: cover; }

.kopfzeile.mit-bild {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 31.5rem);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: end;
  max-width: none;
}
.kopfzeile.mit-bild > div, .kopfzeile.mit-bild > h2 { max-width: 46rem; }

/* Philosophie */

.klebt { position: sticky; top: calc(var(--kopf) + 3rem); }
.klebt .bild { margin-top: clamp(2rem, 4vw, 3.5rem); }

.grundsaetze { margin-top: clamp(2.5rem, 5vw, 4rem); }
.grundsaetze li {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: 0 1rem;
  padding-block: 1.5rem;
  border-top: 1px solid var(--linie);
}
.grundsaetze li:last-child { border-bottom: 1px solid var(--linie); }
.grundsaetze .nr {
  padding-top: .2rem;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--tuerkis);
}
.grundsaetze h3 { font-size: 1.125rem; font-weight: 700; }
.grundsaetze p { grid-column: 2; margin-top: .35rem; font-size: 1rem; color: var(--grau); }

/* Was wir entwickeln */

.kopfzeile { max-width: 46rem; }
.kopfzeile .fliess { margin-top: 1.75rem; }

.felder {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--linie);
  border-left: 1px solid var(--linie);
}
.felder li {
  display: flex;
  flex-direction: column;
  min-height: 20rem;
  padding: clamp(1.5rem, 2.4vw, 2.25rem);
  border-right: 1px solid var(--linie);
  border-bottom: 1px solid var(--linie);
}
.felder .nr {
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--tuerkis);
}
.felder h3 {
  margin-top: clamp(3rem, 6vw, 5.5rem);
  font-size: clamp(1.1875rem, 1.7vw, 1.4375rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.01em;
  hyphens: auto;
}
.felder p { margin-top: .9rem; font-size: 1rem; line-height: 1.55; color: var(--grau); }

/* Produkte */

.produkte {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 1.5rem;
  margin-top: clamp(3rem, 6vw, 5rem);
}

.produkt {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 24rem;
  padding: clamp(1.75rem, 3.4vw, 3rem);
  background: var(--flaeche);
  border: 1px solid var(--linie);
}

.etikett {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--tuerkis);
}

.produkt h3 {
  margin-top: 1.25rem;
  font-size: clamp(2.75rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
}
.produkt .fliess { max-width: 30rem; margin-top: 1.5rem; }
.produkt-luft { flex: 1; min-height: 2.5rem; }

.produkt-offen { background: none; border-style: dashed; }
.produkt-offen .bild { width: 100%; max-width: 31.5rem; margin-bottom: 2rem; }
.produkt-offen h3 { font-size: clamp(1.5rem, 2.4vw, 2rem); letter-spacing: -.01em; line-height: 1.15; }

/* Kontakt */

.kontakt h2 { max-width: 16ch; }
.kontakt .fliess { max-width: 34rem; margin-top: 1.75rem; }

.mail {
  display: inline-flex;
  align-items: baseline;
  gap: 1rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: .5rem;
  border-bottom: 3px solid var(--tuerkis);
  font-size: clamp(1.375rem, 4.6vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color .2s ease;
}
.mail:hover { color: var(--tuerkis); }
.mail .pfeil { color: var(--tuerkis); }

/* ---------- Fuß ---------- */

.fuss {
  padding-block: 3.5rem;
  border-top: 1px solid var(--linie);
  font-size: .875rem;
  color: var(--grau);
}
.fuss .innen {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem 3rem;
}
.fuss-marke img { width: 9rem; }
.fuss-marke p {
  margin-top: .8rem;
  font-size: .625rem;
  font-weight: 500;
  letter-spacing: .3em;
  text-transform: uppercase;
}
.fuss ul { display: flex; flex-wrap: wrap; gap: .75rem 2rem; }
.fuss a { text-decoration: none; transition: color .2s ease; }
.fuss a:hover, .fuss a[aria-current="page"] { color: var(--weiss); }
.fuss-recht { flex-basis: 100%; padding-top: 2rem; border-top: 1px solid var(--linie); }

/* ---------- Rechtsseiten ---------- */

.text-seite { padding-block: calc(var(--kopf) + clamp(3rem, 8vw, 6rem)) var(--abstand); }
.text-seite .innen { max-width: calc(48rem + 2 * var(--rand)); }
.text-seite h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
}
.text-seite h2 {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--linie);
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.01em;
}
.text-seite p, .text-seite dl, .text-seite ul.punkte { margin-top: 1.1rem; color: var(--grau); }
.text-seite a:not(.knopf):not(.zurueck) { color: var(--weiss); text-decoration-color: var(--tuerkis); text-underline-offset: .2em; }
.text-seite a:not(.knopf):hover { color: var(--tuerkis); }
.text-seite .knopf { margin-top: 1.5rem; }
.text-seite ul.punkte { padding-left: 1.2rem; list-style: square; }
.text-seite ul.punkte li { margin-top: .4rem; }
.text-seite ul.punkte li::marker { color: var(--tuerkis); }

.angaben { display: grid; grid-template-columns: minmax(9rem, 17rem) minmax(0, 1fr); gap: .6rem 2rem; }
.angaben dt { color: var(--weiss); font-weight: 600; }

.offen {
  padding: .05em .4em;
  border: 1px dashed var(--tuerkis);
  color: var(--weiss);
  font-size: .9375em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.entwurf {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--tuerkis);
  color: var(--weiss);
}
.entwurf strong { display: block; margin-bottom: .3rem; font-size: .8125rem; letter-spacing: .16em; text-transform: uppercase; color: var(--tuerkis); }
.text-seite .entwurf p { margin-top: 0; color: var(--weiss); }

.zurueck {
  display: inline-flex;
  gap: .6rem;
  margin-bottom: 2.5rem;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--grau);
}

/* ---------- Einblenden beim Rollen ---------- */

.js [data-zeige] {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity .7s var(--weich), transform .7s var(--weich);
}
.js [data-zeige].sichtbar { opacity: 1; transform: none; }
.js [data-zeige="2"] { transition-delay: .08s; }
.js [data-zeige="3"] { transition-delay: .16s; }
.js [data-zeige="4"] { transition-delay: .24s; }

/* ---------- Tablet ---------- */

@media (max-width: 68rem) {
  .felder { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .felder li { min-height: 15rem; }
}

@media (max-width: 60rem) {
  .kopf-marke img { width: 9rem; }
  .nav a { letter-spacing: .1em; }
  .hero { min-height: 0; padding-block: calc(var(--kopf) + 3.5rem) 5rem; }
  .hero .innen { grid-template-columns: minmax(0, 1fr); gap: 3.5rem; }
  .hero-logo { order: -1; justify-self: start; max-width: 21rem; }

  .zweispaltig { grid-template-columns: minmax(0, 1fr); }
  .klebt { position: static; }
  .kopfzeile.mit-bild { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .kopfzeile.mit-bild .bild, .klebt .bild { max-width: 31.5rem; }
  .produkte { grid-template-columns: minmax(0, 1fr); }
  .produkt { min-height: 20rem; }
  .produkt-offen { min-height: 0; }
}

/* ---------- Smartphone ---------- */

@media (max-width: 46rem) {
  :root { --kopf: 4rem; }

  .nav-knopf { display: block; }
  .kopf-marke img { width: 9rem; }

  .nav {
    position: fixed;
    inset: var(--kopf) 0 0 0;
    padding: 2rem var(--rand);
    background: var(--schwarz);
    visibility: hidden;
    opacity: 0;
    transition: opacity .25s ease, visibility 0s linear .25s;
    overflow-y: auto;
  }
  .nav-offen .nav { visibility: visible; opacity: 1; transition-delay: 0s; }
  .nav-offen body { overflow: hidden; }

  .nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav li { border-bottom: 1px solid var(--linie); }
  .nav a {
    padding: 1.4rem 0;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -.01em;
    text-transform: none;
    color: var(--weiss);
  }
  .nav a::after { display: none; }

  .hero-logo { max-width: 16.5rem; }
  .hero-knoepfe .knopf { flex: 1 1 100%; justify-content: space-between; }

  .felder { grid-template-columns: minmax(0, 1fr); }
  .felder li { min-height: 0; }
  .felder h3 { margin-top: 2.25rem; }

  .angaben { grid-template-columns: minmax(0, 1fr); gap: .15rem; }
  .angaben dd { margin-bottom: .9rem; }

  .fuss .innen { flex-direction: column; align-items: flex-start; }
  .fuss-recht { width: 100%; }
}

/* ---------- Weniger Bewegung ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js [data-zeige] { opacity: 1; transform: none; }
}

@media print {
  .kopf, .nav-knopf { display: none; }
  body { background: #fff; color: #000; }
}