/* ============================================================
   HeLa Intelligence — V1 "Signal"
   Dunkel · minimal-cyber · Phantom×Dune-DNA
   ============================================================ */

/* ---------- Fonts (self-hosted, keine Remote-Einbindung) ---------- */
@font-face {
  font-family: 'Instrument Serif';
  src: url('assets/fonts/instrument-serif-v5-latin-regular.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Instrument Serif';
  src: url('assets/fonts/instrument-serif-v5-latin-italic.woff2') format('woff2');
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Space Mono';
  src: url('assets/fonts/space-mono-v17-latin-regular.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Space Mono';
  src: url('assets/fonts/space-mono-v17-latin-700.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('assets/fonts/ibm-plex-sans-v23-latin-regular.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('assets/fonts/ibm-plex-sans-v23-latin-500.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('assets/fonts/ibm-plex-sans-v23-latin-600.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --bg: #0D0B09;
  --bg-raised: #131009;
  --line: rgba(240, 225, 205, 0.14);
  --line-soft: rgba(240, 225, 205, 0.08);
  --text: #EDE6DC;
  --muted: #9C9186;
  --accent: #FF7A29;
  --accent-soft: #FFB27A;
  --cream: #F2E9DC;
  --serif: 'Instrument Serif', Georgia, serif;
  --mono: 'Space Mono', 'Courier New', monospace;
  --sans: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --pad: clamp(1.25rem, 5vw, 5rem);
}

/* ---------- Reset & Grundton ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--accent); color: var(--bg); }

/* Noise-Overlay für Atmosphäre */
body::after {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none; z-index: 9999;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

h1, h2, h3 { font-weight: 400; }
h2 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
}
h2 em { font-style: italic; color: var(--accent-soft); }
a { color: inherit; text-decoration: none; }
p { max-width: 62ch; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed; top: 1rem; left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex; align-items: center; gap: 2rem;
  padding: 0.65rem 1.1rem;
  border: 1px solid var(--line);
  background: rgba(13, 11, 9, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  width: min(calc(100% - 2rem), 880px);
  justify-content: space-between;
  transition: border-color 0.3s ease;
}
.nav__brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav__brand { display: inline-flex; align-items: center; gap: 0.6em; }
.nav__brand .mark { width: 1.5em; height: 1em; flex: none; }
.nav__links { display: flex; align-items: center; gap: 1.6rem; }
.nav__links a {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s ease;
}
.nav__links a:hover { color: var(--accent); }
.nav__cta {
  border: 1px solid var(--line);
  padding: 0.45rem 0.9rem;
  color: var(--text) !important;
}
.nav__cta:hover { border-color: var(--accent); background: rgba(255, 122, 41, 0.08); }
.nav__toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(13,11,9,0.55) 0%, rgba(13,11,9,0.05) 32%, rgba(13,11,9,0.10) 62%, rgba(13,11,9,0.92) 96%),
    url('assets/hero-dune.jpg') center 38% / cover no-repeat,
    var(--bg);
}
.hero__inner {
  padding: 0 var(--pad) clamp(4rem, 10vh, 7.5rem);
  max-width: 1200px;
}
.hero__eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.4rem;
}
.hero__title {
  font-family: var(--serif);
  font-size: clamp(2.9rem, 8.4vw, 6.4rem);
  line-height: 1.02;
  letter-spacing: 0.005em;
  text-wrap: balance;
}
.hero__mono {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.82em;
  letter-spacing: -0.02em;
  color: var(--accent);
}
.cursor { animation: blink 1.15s steps(1) infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }
.hero__lede {
  margin-top: 1.75rem;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--muted);
  max-width: 56ch;
}
.hero__actions { margin-top: 2.4rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__scroll {
  position: absolute; bottom: 1.4rem; right: var(--pad);
  font-family: var(--mono); font-size: 0.7rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); opacity: 0.7;
}

/* Verstreute Mono-Glyphen */
.hero__glyphs span {
  position: absolute;
  font-family: var(--mono);
  font-size: clamp(0.8rem, 1.4vw, 1.1rem);
  color: var(--accent-soft);
  opacity: 0.22;
  user-select: none;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.95rem 1.7rem;
  border: 1px solid transparent;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.btn--cream { background: var(--cream); color: #17130E; }
.btn--cream:hover { background: var(--accent); color: #17130E; transform: translateY(-2px); }
.btn--ghost { border-color: var(--line); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--big { font-size: 0.92rem; padding: 1.15rem 2.2rem; }

/* ---------- Statistik-Rahmenzellen (Dune-Leiste) ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stats__cell {
  padding: clamp(1.8rem, 3.5vw, 3rem);
  border-right: 1px solid var(--line);
}
.stats__cell:last-child { border-right: none; }
.stats__num {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5.5vw, 4.4rem);
  line-height: 1;
  color: var(--cream);
}
.stats__num::after { content: ' ↗'; font-family: var(--mono); font-size: 0.35em; color: var(--accent); vertical-align: super; }
.stats__desc { margin-top: 0.9rem; color: var(--muted); font-size: 0.95rem; }
.stats__src {
  margin-top: 1.1rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 178, 122, 0.55);
}

/* ---------- Sektionen ---------- */
.section { padding: clamp(4.5rem, 10vw, 8.5rem) var(--pad); }
.section__head { margin-bottom: clamp(2.5rem, 5vw, 4.5rem); max-width: 1200px; }
.section__sub { margin-top: 1.2rem; color: var(--muted); }
.kicker {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

/* ---------- Leistungen ---------- */
.services { list-style: none; max-width: 1200px; }
.services__item {
  display: grid;
  grid-template-columns: 5rem 1fr 1.4fr;
  gap: 2rem;
  align-items: baseline;
  padding: 2rem 0.5rem;
  border-top: 1px solid var(--line-soft);
  transition: background 0.3s ease;
}
.services__item:last-child { border-bottom: 1px solid var(--line-soft); }
.services__item:hover { background: rgba(255, 122, 41, 0.04); }
.services__num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
}
.services__item h3 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1.15;
  transition: color 0.3s ease;
}
.services__item:hover h3 { color: var(--accent-soft); }
.services__item p { color: var(--muted); font-size: 0.98rem; }

/* ---------- Produkte: Preiszeile + Sektions-Fußnote ---------- */
.services__price {
  margin-top: 0.45rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-soft);
}
.services__note {
  margin-top: 1.4rem;
  max-width: 1200px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- „Wissen & Grenzen"-Block ---------- */
.assure {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  max-width: 1200px;
  margin-top: clamp(2rem, 4vw, 3rem);
}
.assure__cell {
  padding: clamp(1.6rem, 3vw, 2.4rem);
  border-right: 1px solid var(--line);
  transition: background 0.3s ease;
}
.assure__cell:last-child { border-right: none; }
.assure__cell:hover { background: rgba(255, 122, 41, 0.05); }
.assure__cell h3 { font-size: 1.02rem; font-weight: 600; margin-bottom: 0.55rem; }
.assure__cell p { color: var(--muted); font-size: 0.92rem; }

/* ---------- Prozess-Grafik „Signalweg" (Vorgehen) ---------- */
.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  max-width: 1200px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.flow__stage {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  padding: clamp(1.4rem, 2.6vw, 2.1rem);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  transition: border-color 0.3s ease;
}
.flow__stage:hover { border-color: rgba(255, 122, 41, 0.45); }
.flow__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.8rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.flow__meta .num { color: var(--accent); }
.flow__meta .dur { color: var(--muted); text-align: right; }
.flow__title {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  line-height: 1.1;
  color: var(--text);
  max-width: none;
}
.flow__chain { list-style: none; display: flex; flex-direction: column; }
.flow__chain li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.flow__chain li::before {
  content: '';
  position: absolute; left: 0.42rem; top: 0; bottom: 0;
  width: 1px; background: var(--line);
}
.flow__chain li:first-child::before { top: 50%; }
.flow__chain li:last-child::before { bottom: 50%; }
.flow__chain li::after {
  content: '';
  position: absolute; left: 0.2rem; top: 50%;
  width: 0.45rem; height: 0.45rem;
  transform: translateY(-50%);
  background: var(--bg-raised);
  border: 1px solid var(--accent);
}
.flow__chain strong { color: var(--text); font-weight: 500; display: block; font-size: 0.95rem; }
.flow__chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.flow__chips span {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 0.45rem 0.65rem;
  white-space: nowrap;
}
.flow__chips span::before { content: '▸ '; color: var(--accent); }
.flow__loop { display: flex; align-items: center; gap: 1.1rem; color: var(--accent); }
.flow__loop svg { flex: none; }
.flow__loop ul { list-style: none; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); display: flex; flex-direction: column; gap: 0.5rem; }
.flow__loop li::before { content: '● '; color: var(--accent); font-size: 0.55em; vertical-align: 0.2em; }
.flow__foot {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.85rem;
  color: var(--muted);
}
.flow__link {
  position: relative;
  width: clamp(2.6rem, 4.5vw, 4.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
}
.flow__link::before {
  content: '';
  position: absolute; left: 0; right: 0; top: 50%;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--accent) 0 5px, transparent 5px 10px);
  opacity: 0.6;
}
.flow__link .arrow {
  position: absolute; right: -1px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.9rem;
  line-height: 1;
}
.flow__exit {
  position: relative;
  z-index: 1;
  width: 1.1rem; height: 1.1rem;
  background: var(--bg);
  border: 1px solid var(--accent);
  transform: rotate(45deg);
}
.flow__exit::after {
  content: '';
  position: absolute; inset: 3px;
  background: var(--accent);
  opacity: 0.35;
}
.flow__exitlabel {
  position: absolute;
  top: calc(50% + 1.7rem);
  left: 50%;
  transform: translateX(-50%);
  writing-mode: vertical-rl;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}
.flow__legend {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.flow__legend .hl { color: var(--accent-soft); }
@media (max-width: 900px) {
  .flow { grid-template-columns: 1fr; }
  .flow__link { width: auto; height: 4.4rem; }
  .flow__link::before { left: 50%; right: auto; top: 0; bottom: 0; width: 1px; height: auto; background: repeating-linear-gradient(180deg, var(--accent) 0 5px, transparent 5px 10px); }
  .flow__link .arrow { right: auto; top: auto; bottom: -2px; left: 50%; transform: translateX(-50%) rotate(90deg); }
  .flow__exitlabel { writing-mode: horizontal-tb; top: 50%; left: calc(50% + 1.4rem); transform: translateY(-50%); }
  .flow__legend { flex-direction: column; gap: 0.4rem; }
  .assure { grid-template-columns: 1fr; }
  .assure__cell { border-right: none; border-bottom: 1px solid var(--line); }
  .assure__cell:last-child { border-bottom: none; }
}

/* ---------- Vorgehen ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 1200px;
}
.steps__box {
  border: 1px solid var(--line);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  background: var(--bg-raised);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.steps__box:hover { border-color: rgba(255, 122, 41, 0.45); transform: translateY(-4px); }
.steps__box .steps__num { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); margin-bottom: 1.3rem; }
.steps__box h3 { font-family: var(--serif); font-size: 1.6rem; margin-bottom: 0.8rem; }
.steps__box p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Prinzipien 3×2 Rahmen-Grid ---------- */
.grid6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  max-width: 1200px;
}
.grid6__cell {
  padding: clamp(1.6rem, 3vw, 2.4rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s ease;
}
.grid6__cell:nth-child(3n) { border-right: none; }
.grid6__cell:nth-child(n+4) { border-bottom: none; }
.grid6__cell:hover { background: rgba(255, 122, 41, 0.05); }
.grid6__glyph {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1rem;
  display: block;
  margin-bottom: 1rem;
}
.grid6__cell h3 { font-size: 1.02rem; font-weight: 600; margin-bottom: 0.55rem; }
.grid6__cell p { color: var(--muted); font-size: 0.92rem; }

/* ---------- Über uns ---------- */
.about {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 5rem);
  max-width: 1200px;
  align-items: start;
}
.about__right p { color: var(--muted); margin-bottom: 1.2rem; }
.about__right p:first-child { color: var(--text); }

/* ---------- Team (Foto-Plätze: Monogramm bis Fotos vorliegen) ---------- */
.team {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 280px));
  gap: 1.25rem;
  max-width: 1200px;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}
.team__card {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  padding: 1.25rem;
  transition: border-color 0.3s ease;
}
.team__card:hover { border-color: rgba(255, 122, 41, 0.45); }
.team__photo {
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse 80% 60% at 50% 110%, rgba(255, 122, 41, 0.14), transparent 70%),
    var(--bg);
  font-family: var(--serif);
  font-size: clamp(3rem, 6vw, 4.5rem);
  color: var(--accent-soft);
  letter-spacing: 0.04em;
}
.team__photo img { width: 100%; height: 100%; object-fit: cover; }
.team__name { margin-top: 1rem; font-weight: 600; font-size: 1.02rem; }
.team__role {
  margin-top: 0.2rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Kontakt ---------- */
.contact {
  position: relative;
  text-align: center;
  padding: clamp(5.5rem, 13vw, 10rem) var(--pad);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 55% at 50% 115%, rgba(255, 122, 41, 0.16), transparent 70%),
    var(--bg);
}
.contact__inner { position: relative; }
.contact h2 { margin-bottom: 1.4rem; }
.contact__sub { margin: 0 auto 2.6rem; color: var(--muted); max-width: 52ch; }
.contact__note {
  margin: 1.6rem auto 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Footer ---------- */
.footer {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
  padding: 2rem var(--pad);
  border-top: 1px solid var(--line-soft);
}
.footer__brand {
  font-family: var(--mono); font-weight: 700;
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase;
}
.footer__brand { display: inline-flex; align-items: center; gap: 0.6em; }
.footer__brand .mark { width: 1.5em; height: 1em; flex: none; }
.footer__links { display: flex; gap: 1.6rem; }
.footer__links a, .footer__copy {
  font-family: var(--mono); font-size: 0.7rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted);
}
.footer__links a:hover { color: var(--accent); }

/* ---------- Entwurfs-Banner (Rechtsseiten) ---------- */
.draft-banner {
  background: rgba(255, 122, 41, 0.12);
  border: 1px solid rgba(255, 122, 41, 0.5);
  color: var(--accent-soft);
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.9rem 1.2rem;
  margin: 7rem var(--pad) 0;
}
.legal { padding: 2.5rem var(--pad) 5rem; max-width: 820px; }
.legal h1 { font-family: var(--serif); font-size: clamp(2.2rem, 5vw, 3.2rem); margin-bottom: 2rem; }
.legal h2 { font-size: 1.35rem; margin: 2.2rem 0 0.7rem; }
.legal p, .legal li { color: var(--muted); font-size: 0.97rem; margin-bottom: 0.7rem; }
.legal .ph { color: var(--accent-soft); font-family: var(--mono); font-size: 0.9em; }

/* ---------- Reveal-Animationen ---------- */
html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
html.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .cursor { animation: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .stats { grid-template-columns: 1fr; }
  .stats__cell { border-right: none; border-bottom: 1px solid var(--line); }
  .stats__cell:last-child { border-bottom: none; }
  .services__item { grid-template-columns: 3rem 1fr; }
  .services__item p { grid-column: 2; }
  .steps { grid-template-columns: 1fr; }
  .grid6 { grid-template-columns: 1fr 1fr; }
  .grid6__cell:nth-child(3n) { border-right: 1px solid var(--line); }
  .grid6__cell:nth-child(2n) { border-right: none; }
  .grid6__cell:nth-child(n+4) { border-bottom: 1px solid var(--line); }
  .grid6__cell:nth-child(n+5) { border-bottom: none; }
  .about { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav { top: 0.75rem; gap: 1rem; }
  .nav__toggle {
    display: flex; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 0.4rem;
  }
  .nav__toggle span { display: block; width: 20px; height: 1.5px; background: var(--text); transition: transform 0.25s ease, opacity 0.25s ease; }
  .nav.is-open .nav__toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .nav.is-open .nav__toggle span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
  .nav__links {
    display: none;
    position: absolute; top: calc(100% + 0.5rem); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    border: 1px solid var(--line);
    background: rgba(13, 11, 9, 0.96);
    backdrop-filter: blur(12px);
  }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a { padding: 0.95rem 1.2rem; border-bottom: 1px solid var(--line-soft); }
  .nav__links a:last-child { border-bottom: none; }
  .nav__cta { border: none; }
  .grid6 { grid-template-columns: 1fr; }
  .grid6__cell { border-right: none !important; border-bottom: 1px solid var(--line) !important; }
  .grid6__cell:last-child { border-bottom: none !important; }
  .hero__actions .btn { width: 100%; text-align: center; }
  .footer { flex-direction: column; align-items: flex-start; }
}