/* ============================================================
   KÖCH — koch.kg
   Adapted from the locked brand system:
   Black #0A0A0A · Yellow #FFE600 · White #FFFFFF · Clay #B8452E
   ============================================================ */

:root {
  --koch-black: #0A0A0A;
  --koch-yellow: #FFE600;
  --koch-yellow-dim: #E6CE00;
  --koch-white: #FFFFFF;
  --koch-ink-900: #0A0A0A;
  --koch-ink-800: #1A1A1C;
  --koch-ink-700: #2A2A2D;
  --koch-ink-600: #4A4A4E;
  --koch-ink-500: #6B6B70;
  --koch-ink-400: #9A9A9E;
  --koch-ink-300: #C8C8CC;
  --koch-ink-200: #E4E4E6;
  --koch-ink-100: #F2F2F0;
  --koch-ink-050: #FAFAF7;
  --koch-clay: #B8452E;

  --bg: var(--koch-ink-050);
  --bg-paper: var(--koch-ink-100);
  --fg: var(--koch-ink-900);
  --fg-muted: var(--koch-ink-500);

  --font-display: "Zilla Slab", "Roboto Slab", Georgia, serif;
  --font-label:   "Barlow Condensed", "Oswald", "Arial Narrow", sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, Menlo, monospace;

  --fs-display-xl: clamp(56px, 9vw, 144px);
  --fs-display-l:  clamp(44px, 6.4vw, 96px);
  --fs-display-m:  clamp(36px, 4.8vw, 64px);
  --fs-h1: clamp(30px, 3.6vw, 52px);
  --fs-h2: clamp(26px, 2.6vw, 38px);
  --fs-h3: clamp(20px, 1.8vw, 26px);
  --fs-body: 17px;

  --max-w: 1320px;
  --gutter: clamp(20px, 4vw, 48px);
  --nav-h: 64px;
  --ease-out: cubic-bezier(.22,.61,.36,1);
}

/* Reset-ish */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--fg);
  background: var(--bg);
  font-size: var(--fs-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.k-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.k-eyebrow {
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .18em;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.k-eyebrow--light { color: rgba(255,255,255,.65); }

.k-display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.02;
  margin: 0;
}
.k-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.1;
  letter-spacing: -.01em;
  margin: 0;
}

/* ---------- NAV ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,10,10,.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  color: #fff;
  height: var(--nav-h);
}
.nav__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 24px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: .02em;
}
.nav__brand img { height: 28px; width: auto; }
.nav__brand-mark {
  width: 28px; height: 28px;
  border: 2px solid var(--koch-yellow);
  border-radius: 50%;
  display: inline-grid; place-items: center;
  color: var(--koch-yellow);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
}
.nav__spacer { flex: 1; }
.nav__links {
  display: flex;
  gap: 28px;
  font-family: var(--font-label);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255,255,255,.78);
}
.nav__links a { transition: color .2s var(--ease-out); }
.nav__links a:hover { color: var(--koch-yellow); }
.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--koch-yellow);
  color: var(--koch-black);
  padding: 9px 14px;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: transform .2s var(--ease-out), background .2s var(--ease-out);
}
.nav__cta:hover { transform: translateY(-1px); background: #FFEC4D; }
.langswitch {
  display: flex;
  gap: 0;
  border: 1px solid rgba(255,255,255,.22);
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.langswitch button {
  background: transparent;
  color: rgba(255,255,255,.7);
  padding: 6px 10px;
  border: 0;
  transition: background .2s, color .2s;
}
.langswitch button[aria-pressed="true"] {
  background: var(--koch-yellow);
  color: var(--koch-black);
}
.nav__menu-btn {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,.22);
  color: #fff;
  width: 38px; height: 34px;
  align-items: center; justify-content: center;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  color: #fff;
  background:
    linear-gradient(180deg, rgba(10,10,10,.35) 0%, rgba(10,10,10,.15) 35%, rgba(10,10,10,.85) 100%),
    url("assets/img/hero.jpg") center 30% / cover no-repeat;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: clamp(48px, 8vh, 96px);
  overflow: hidden;
}
.hero__kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .22em;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--koch-yellow);
  margin-bottom: 24px;
}
.hero__kicker::before {
  content: "";
  display: inline-block;
  width: 28px; height: 1px;
  background: var(--koch-yellow);
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-display-xl);
  line-height: .92;
  letter-spacing: -.02em;
  margin: 0 0 18px;
  text-transform: uppercase;
}
.hero__sub {
  max-width: 640px;
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.45;
  color: rgba(255,255,255,.88);
  margin: 0 0 36px;
}
.hero__cta {
  display: inline-flex; align-items: center; gap: 12px;
  background: var(--koch-yellow);
  color: var(--koch-black);
  padding: 16px 22px;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: transform .2s var(--ease-out), background .2s;
}
.hero__cta:hover { transform: translateY(-2px); background: #FFEC4D; }
.hero__cta::after { content: "→"; font-size: 16px; }
.hero__scroll {
  position: absolute;
  bottom: 18px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-label);
  font-weight: 600;
  letter-spacing: .22em;
  font-size: 10px;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
}
.hero__scroll::after {
  content: "";
  display: block;
  width: 1px; height: 32px;
  background: rgba(255,255,255,.4);
  margin: 8px auto 0;
}

/* ---------- MARQUEE ---------- */
.marquee {
  background: var(--koch-black);
  color: var(--koch-yellow);
  overflow: hidden;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.marquee__track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .22em;
  text-transform: uppercase;
  animation: marquee 38s linear infinite;
  will-change: transform;
}
.marquee__track > span { display: inline-flex; gap: 48px; }
.marquee__track .dot { color: rgba(255,230,0,.55); }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- FOUNDER ---------- */
.founder {
  background: var(--bg-paper);
  padding: clamp(64px, 10vh, 128px) 0;
}
.founder__grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.founder__photo {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--koch-ink-200);
  overflow: hidden;
}
.founder__photo img {
  width: 100%; height: 100%; object-fit: cover;
}
.founder__badge {
  position: absolute;
  bottom: -16px; left: -16px;
  background: var(--koch-yellow);
  color: var(--koch-black);
  padding: 10px 16px;
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .16em;
  font-size: 12px;
  text-transform: uppercase;
}
.founder__lead {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--fg);
  margin: 16px 0 28px;
}
.founder__sig {
  display: flex; align-items: center; gap: 18px;
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .16em;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--koch-ink-700);
}
.founder__sig::before {
  content: "";
  display: inline-block;
  width: 48px; height: 1px;
  background: var(--koch-black);
}

/* ---------- SERVICES ---------- */
.services {
  background: var(--koch-black);
  color: #fff;
  padding: clamp(64px, 10vh, 128px) 0;
}
.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}
.section-head__title { color: inherit; }
.section-head__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255,255,255,.45);
  letter-spacing: .08em;
}
.services__title {
  color: #fff;
  font-size: var(--fs-display-m);
  margin-top: 14px;
  text-transform: uppercase;
}
.services__grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  gap: 20px;
}
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 520px;
  padding: 28px;
  color: #fff;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  background-size: cover;
  background-position: center;
  transition: transform .35s var(--ease-out);
}
.card:hover { transform: translateY(-4px); }
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,.25) 0%, rgba(10,10,10,.55) 55%, rgba(10,10,10,.92) 100%);
  z-index: 0;
}
.card > * { position: relative; z-index: 1; }
.card--tall { min-height: 600px; }
.card__top {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: auto;
}
.card__tag {
  display: inline-flex;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.2);
  padding: 6px 10px;
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .16em;
  font-size: 11px;
  text-transform: uppercase;
}
.card__num {
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: .55;
  margin-top: 4px;
}
.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 2.6vw, 40px);
  letter-spacing: -.01em;
  line-height: 1.05;
  margin: 0 0 14px;
  text-transform: uppercase;
}
.card--tall .card__title { font-size: clamp(36px, 3.6vw, 56px); }
.card__body {
  font-size: 15px;
  line-height: 1.55;
  color: rgba(255,255,255,.84);
  max-width: 420px;
  margin: 0 0 22px;
}
.card__foot {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid rgba(255,255,255,.2);
  padding-top: 16px;
}
.card__caption {
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: .55;
}
.card__cta {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--koch-yellow);
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .14em;
  font-size: 13px;
  text-transform: uppercase;
}
.card__cta::after { content: "→"; }

/* ---------- GALLERY ---------- */
.gallery {
  padding: clamp(64px, 10vh, 128px) 0;
  background: var(--bg);
}
.gallery__head { margin-bottom: 32px; }
.gallery__head h2 { margin-top: 12px; }
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  gap: 12px;
}
.gallery__item {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--koch-ink-200);
  position: relative;
}
.gallery__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease-out);
}
.gallery__item:hover img { transform: scale(1.04); }
/* Feature tile spans 2x2, others fill around it */
.gallery__item--feature {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: auto;
}

/* ---------- CONTACT ---------- */
.contact {
  background: var(--koch-black);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 10vh, 128px) 0;
}
.contact::before {
  content: "KÖCH";
  position: absolute;
  right: -80px; top: -60px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(240px, 32vw, 440px);
  line-height: 1;
  color: rgba(255,230,0,.06);
  pointer-events: none;
  letter-spacing: -.02em;
}
.contact__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.contact__title {
  color: #fff;
  font-size: var(--fs-display-l);
  margin: 18px 0;
  text-transform: uppercase;
}
.contact__sub {
  font-size: clamp(17px, 1.4vw, 20px);
  color: rgba(255,255,255,.74);
  max-width: 540px;
}
.contact__list {
  display: flex; flex-direction: column; gap: 12px;
}
.contact__btn {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--koch-yellow);
  color: var(--koch-black);
  padding: 18px 22px;
  font-family: var(--font-label);
  font-weight: 700;
  letter-spacing: .14em;
  font-size: 14px;
  text-transform: uppercase;
  transition: transform .2s var(--ease-out), background .2s;
}
.contact__btn:hover { transform: translateY(-2px); background: #FFEC4D; }
.contact__btn--ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.28);
}
.contact__btn--ghost:hover { background: rgba(255,255,255,.08); }
.contact__btn .icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- FOOTER ---------- */
.footer {
  background: var(--koch-black);
  color: rgba(255,255,255,.55);
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 13px;
  font-family: var(--font-label);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.footer__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer__brand { color: #fff; }
.footer a { color: rgba(255,255,255,.7); }
.footer a:hover { color: var(--koch-yellow); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .nav__links { display: none; }
  .nav__menu-btn { display: inline-flex; }
  .founder__grid { grid-template-columns: 1fr; gap: 40px; }
  .founder__photo { aspect-ratio: 4 / 5; max-width: 440px; }
  .founder__badge { left: 0; bottom: -14px; }
  .services__grid { grid-template-columns: 1fr 1fr; }
  .card--tall { grid-column: span 2; }
  .contact__grid { grid-template-columns: 1fr; }
  .gallery__grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .nav__brand { font-size: 18px; }
  .nav__brand img { height: 24px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .services__grid { grid-template-columns: 1fr; }
  .card, .card--tall { grid-column: auto; min-height: 460px; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .gallery__item--feature { grid-column: span 2; grid-row: auto; aspect-ratio: 4 / 3; }
  .hero { background-position: 60% 30%; }
}

/* small utility */
.icon { display: inline-block; vertical-align: middle; }