/* ==========================================================================
   LASERKATZE — "LESS" Design System
   Quelle: Less Booklet (27.09.2016) · Lasercut Manufaktur, Aachen
   ========================================================================== */

/* ---------- Font: Jost — Ein-Familie-System lt. Design-Brief
   (Hausschrift Neutraface; Jost = lizenzfreier Web-Fallback) ---------- */
@font-face { font-family: 'Jost'; font-weight: 300; font-display: swap;
  src: url('../fonts/Jost-300-latin.woff2') format('woff2'); }
@font-face { font-family: 'Jost'; font-weight: 400; font-display: swap;
  src: url('../fonts/Jost-400-latin.woff2') format('woff2'); }
@font-face { font-family: 'Jost'; font-weight: 500; font-display: swap;
  src: url('../fonts/Jost-500-latin.woff2') format('woff2'); }
@font-face { font-family: 'Jost'; font-weight: 700; font-display: swap;
  src: url('../fonts/Jost-700-latin.woff2') format('woff2'); }

/* ---------- Tokens ---------- */
:root {
  /* Farbe — verbindlich lt. Design-Brief */
  --ink: #141414;
  --ink-soft: #5A5A57;
  --paper: #FFFFFF;
  --paper-2: #F7F7F5;
  --gray-warm: #ECEDEA;
  --hairline: #E2E2DD;
  --mint: #20FFCA;
  --mint-deep: #0eb28c;   /* lesbarer Mint-Ton für Text/Icons auf Weiß */
  --lila: #C66AC1;
  --blue: #98BCDE;
  --peach: #FEC997;
  --yellow: #FCCE21;
  --void: #141414;

  /* Typo — Ein-Familie-System Jost */
  --font-head: 'Jost', 'Neutraface 2 Text', 'Futura', sans-serif;
  --font-body: 'Jost', 'Neutraface 2 Text', 'Futura', sans-serif;
  --font-logo: 'Jost', sans-serif;

  /* Skala lt. Brief: H1 40–64, H2 28–36, Body 17–18, Label 12 */
  --fs-display: clamp(3rem, 7vw, 6rem);
  --fs-h1: clamp(2.5rem, 4.5vw, 4rem);
  --fs-h2: clamp(1.75rem, 2.6vw, 2.25rem);
  --fs-h3: 1.15rem;
  --fs-body: 1.0625rem;
  --fs-label: 0.75rem;

  /* Raum — Skala 8·16·24·40·64·96·128; Sektionen 64–128px */
  --space-section: clamp(4rem, 9vh, 8rem);
  --space-block: clamp(2.5rem, 5vh, 4rem);
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --measure: 34em;

  --radius: 2px;
  --frame: 1px solid var(--ink);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; }

::selection { background: var(--mint); color: var(--ink); }

/* ---------- Typo-Utilities ---------- */
.eyebrow {
  font-family: var(--font-head);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.display {
  font-family: var(--font-head);
  font-size: var(--fs-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1;
  text-transform: uppercase;
}
h1, .h1 {
  font-family: var(--font-head);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
h2, .h2 {
  font-family: var(--font-head);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
h3, .h3 {
  font-family: var(--font-head);
  font-size: var(--fs-h3);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lead { font-size: 1.25rem; font-weight: 300; max-width: var(--measure); }
p { max-width: var(--measure); }
.muted { color: var(--ink-soft); }

/* Übergangslösung bis Original-Wortmarken-Datei vorliegt (Brief §3) */
.wordmark {
  font-family: var(--font-logo);
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

/* ---------- Layout ---------- */
.container { width: min(100% - 2 * var(--gutter), 1200px); margin-inline: auto; }
.container--wide { width: min(100% - 2 * var(--gutter), 1240px); margin-inline: auto; }
.section { padding-block: var(--space-section); }
.section--tight { padding-block: var(--space-block); }

.grid-2 { display: grid; gap: var(--space-block); grid-template-columns: 1fr; }
.grid-3 { display: grid; gap: calc(var(--gutter) * 0.75); grid-template-columns: 1fr; }
.grid-4 { display: grid; gap: calc(var(--gutter) * 0.75); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 760px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); align-items: center; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Komponenten ---------- */

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--gutter); padding-block: 1.1rem;
}
.nav__brand { display: flex; align-items: center; gap: 0.8rem; }
.nav__brand img { width: 34px; height: 34px; }
.nav__brand .wordmark { font-size: 1.05rem; }
.nav__links { display: flex; gap: 1.8rem; align-items: center; }
.nav__links a {
  font-family: var(--font-head); font-size: var(--fs-label);
  font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase;
  padding-block: 0.4rem; border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.nav__links a:hover, .nav__links a[aria-current="page"] { border-bottom-color: var(--ink); }
.nav__toggle { display: none; }

/* Hamburger bis 899px: die deutschen Menü-Labels ("Design & Produktentwicklung")
   brauchen zusammen mit dem Logo rund 830px. Bei der alten Grenze von 759px
   ragte die Navigation zwischen 760 und 830px aus dem Viewport — genau im
   Bereich von iPad-Hochformat (768px) und schmalen Fenstern. */
@media (max-width: 899px) {
  .nav__toggle { display: block; padding: 0.5rem; }
  .nav__toggle svg { width: 26px; height: 26px; }
  .nav__links {
    display: none; position: absolute; inset: 100% 0 auto 0;
    flex-direction: column; align-items: flex-start;
    background: var(--paper); border-bottom: 1px solid var(--hairline);
    padding: 1.5rem var(--gutter) 2rem; gap: 0.6rem;
  }
  .nav__links.is-open { display: flex; }
  /* Tap-Targets >= 44px im Mobil-Menü */
  .nav__links a { padding-block: 0.7rem; min-height: 44px; display: flex; align-items: center; }
}

/* LESS-Tag (Booklet-Ecke) */
.less-tag {
  font-family: var(--font-head); font-weight: 700; font-size: var(--fs-label);
  letter-spacing: 0.1em;
}

/* Bildkarte mit dünnem Rahmen + rotierter Caption (Booklet-Motiv) */
.plate { position: relative; }
.plate__frame { border: var(--frame); padding: clamp(0.8rem, 2vw, 1.4rem); background: var(--paper); }
.plate img { width: 100%; height: auto; }
.plate__caption {
  position: absolute; left: -0.75rem; bottom: 0;
  transform: rotate(180deg); writing-mode: vertical-rl;
  font-family: var(--font-body); font-size: 0.8rem; letter-spacing: 0.06em;
  color: var(--ink-soft);
}

/* Service-Karte (Amplemarket-Kachel × Booklet-Farbe) */
.card {
  display: flex; flex-direction: column; gap: 1rem;
  border: var(--frame); border-radius: var(--radius);
  padding: 1.4rem; background: var(--paper);
  position: relative; overflow: hidden;
  transition: transform 0.25s ease;
}
.card::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 4px;
  background: var(--card-color, var(--mint));
  transition: height 0.25s ease;
}
.card:hover { transform: translateY(-4px); }
.card:hover::after { height: 8px; }
.card img { aspect-ratio: 3 / 4; object-fit: cover; width: 100%; }
.card .h3 { margin-top: 0.2rem; }
.card p { font-size: 0.95rem; }

/* Buttons — 70Materia: dünn, eckig, outline */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-head); font-size: var(--fs-label);
  font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase;
  border: var(--frame); border-radius: var(--radius);
  padding: 0.85rem 1.6rem;
  transition: background 0.2s ease, color 0.2s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--fill { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn--fill:hover { background: var(--ink); color: var(--mint); box-shadow: inset 0 -3px 0 var(--mint); }
.btn--mint { border-color: var(--mint); background: var(--mint); color: var(--ink); }
.btn--mint:hover { background: transparent; border-color: var(--ink); }

/* Prozess-Schritte */
.steps { display: grid; gap: 2rem; grid-template-columns: repeat(2, 1fr); counter-reset: step; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 1rem; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-head); font-weight: 800; font-size: 1.6rem;
  display: block; margin-bottom: 0.4rem;
}
.steps .h3 { font-size: 0.95rem; }
.steps p { font-size: 0.9rem; color: var(--ink-soft); }

/* Akzent-Sektion — Brief: KEINE Vollflächen-Farbe.
   Farbe = schmaler Balken + Marker. --accent pro Sektion setzen. */
.section--accent { position: relative; }
.section--accent::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: clamp(56px, 8vw, 96px); height: 6px;
  background: var(--accent, var(--mint));
}
.section--accent .eyebrow { color: var(--accent-text, var(--ink)); }
.accent-chip {
  display: inline-block; width: 0.7em; height: 0.7em;
  background: var(--accent, var(--mint));
  margin-right: 0.5em;
}

/* Tinte-Block (monochrom — erlaubt, Footer-Charakter) */
.colorblock--void { background: var(--void); color: var(--paper-2); }

/* Spec-Liste (Innenseiten-Stil) */
.spec { display: grid; gap: 2rem; }
@media (min-width: 760px) { .spec { grid-template-columns: repeat(var(--spec-cols, 3), 1fr); } }
.spec dt {
  font-family: var(--font-head); font-size: var(--fs-label); font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  border-bottom: 1px solid var(--hairline); padding-bottom: 0.5rem; margin-bottom: 0.7rem;
}
.spec dd { font-size: 0.95rem; line-height: 1.9; }

/* Footer */
.footer { border-top: var(--frame); }
.footer__grid { display: grid; gap: 2.5rem; padding-block: var(--space-block); }
@media (min-width: 760px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
/* Footer-Links als Tap-Targets (vertikaler Klickbereich) */
.footer__grid a { display: inline-block; padding-block: 0.3rem; }
.footer a:hover { border-bottom: 1px solid currentColor; }
.footer__meta {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  padding-block: 1.2rem; border-top: 1px solid var(--hairline);
  font-size: 0.8rem; color: var(--ink-soft);
}

/* Scroll-Reveal */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}

/* FAQ (details/summary) */
.faq-item { border-bottom: 1px solid var(--hairline); }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 1rem 0;
  font-family: var(--font-head); font-weight: 500; font-size: 1.05rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; line-height: 1; color: var(--ink-soft); flex: none; }
.faq-item[open] summary::after { content: '−'; }
.faq-item > p { padding: 0 0 1.2rem; margin: 0; max-width: 60ch; color: var(--ink-soft); }

/* Nur fuer Screenreader: sichtbar fuer assistive Technik, unsichtbar am Bildschirm.
   Kein display:none — das wuerde die Ueberschrift auch vor Screenreadern verstecken. */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* Hilfen */
.stack-s > * + * { margin-top: 0.75rem; }
.stack-m > * + * { margin-top: 1.5rem; }
.stack-l > * + * { margin-top: 2.5rem; }
.center { text-align: center; }
.center p, .center .lead { margin-inline: auto; }