/* ============================================================
   ATF Ammendorfer Plastisole GmbH - Relaunch 2026
   Design: "Technisches Datenblatt" - präzise, industriell, ruhig
   ============================================================ */

:root {
  --paper: #f3f1ea;
  --paper-2: #ebe8df;
  --ink: #16181c;
  --ink-2: #3c4048;
  --ink-3: #6b7078;
  --line: #d5d1c5;
  --line-dark: #2a2d33;
  --accent: #d64a0a;
  --accent-dark: #b23c05;
  --white: #ffffff;

  --font-display: "Archivo", sans-serif;
  --font-body: "Schibsted Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --maxw: 1240px;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --radius: 2px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* subtle paper grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a { color: inherit; }

::selection { background: var(--accent); color: var(--white); }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ---------- typography ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.display {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 800;
  text-transform: none;
}

h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); }

.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.kicker::before {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.kicker .num { color: var(--ink-3); }

.lead {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 46ch;
}

p + p { margin-top: 1em; }

/* ---------- header ---------- */

.topbar {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.topbar .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 2.1rem;
  gap: 1rem;
}

.topbar a { text-decoration: none; color: inherit; }
.topbar a:hover { color: #fff; text-decoration: underline; }
.topbar .certs-mini { display: flex; gap: 1.25rem; opacity: 0.75; }

header.site {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 4.5rem;
}

.logo { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.logo img { height: 2.4rem; width: auto; }

nav.main { display: flex; align-items: center; gap: 0.25rem; }

nav.main > ul {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  align-items: center;
}

nav.main a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
  display: inline-block;
}

nav.main a:hover, nav.main a[aria-current="page"] { background: var(--ink); color: var(--paper); }

.has-sub { position: relative; }

.has-sub > a::after { content: " ▾"; font-size: 0.7em; }

.submenu {
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 0;
  min-width: 22rem;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px -18px rgba(20, 24, 28, 0.35);
  list-style: none;
  padding: 0.4rem;
  display: none;
  z-index: 50;
}

.has-sub:hover .submenu, .has-sub:focus-within .submenu { display: block; }

.submenu a {
  display: block;
  padding: 0.7rem 0.85rem;
  font-weight: 500;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn::after { content: "→"; transition: transform 0.2s; }
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:hover::after { transform: translateX(4px); }

.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }

.btn.light { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn.light:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  color: var(--ink);
}

/* ---------- hero ---------- */

.hero {
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-top: clamp(3rem, 7vw, 6rem);
  padding-bottom: clamp(3rem, 7vw, 6rem);
  align-items: center;
}

.hero-copy .display { margin-bottom: 1.4rem; }
.hero-copy .lead { margin-bottom: 2.2rem; }

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 4.6;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
  border: 1px solid var(--line-dark);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0.9rem -0.9rem -0.9rem 0.9rem;
  border: 1px solid var(--accent);
  z-index: -1;
}

.hero-meta {
  position: absolute;
  left: 0;
  bottom: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.55rem 0.9rem;
}

.cert-row {
  display: flex;
  gap: 1.75rem;
  align-items: center;
  margin-top: 2.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}

.cert-row img { height: 3.2rem; width: auto; }
.cert-row .cert-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  max-width: 16ch;
  line-height: 1.5;
}

/* page hero (subpages) */

.page-hero {
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(105deg, var(--paper) 55%, transparent 100%),
    var(--paper-2);
  position: relative;
}

.page-hero .wrap {
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
  max-width: var(--maxw);
}

.page-hero .display { max-width: 18ch; margin-bottom: 1.2rem; }
.page-hero .lead { max-width: 58ch; }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 2.2rem;
}
.breadcrumb a { color: inherit; text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }

/* ---------- sections ---------- */

section.block {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}

section.block.dark {
  background: var(--ink);
  color: var(--paper);
  border-bottom: 1px solid var(--line-dark);
}

section.block.dark .kicker .num { color: #8a8f98; }
section.block.dark .lead, section.block.dark p { color: #c9cdd4; }
section.block.dark h2, section.block.dark h3 { color: var(--paper); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.split.center { align-items: center; }

.split .media img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border: 1px solid var(--line-dark);
  filter: saturate(0.92);
}

.prose { max-width: 62ch; }
.prose h3 { margin: 1.8em 0 0.6em; }
.prose h3:first-child { margin-top: 0; }
.prose ul { margin: 1em 0 1em 1.2em; }
.prose li { margin-bottom: 0.4em; }

/* application cards */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 3rem;
}

.card {
  background: var(--paper);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  position: relative;
  transition: background 0.2s;
}

.card:hover { background: var(--white); }

.card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  filter: saturate(0.9);
  border: 1px solid var(--line);
}

.card .idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.14em;
}

.card h3 { font-size: 1.15rem; }
.card p { font-size: 0.95rem; color: var(--ink-2); }

.card a.cover { position: absolute; inset: 0; }

/* team */

.team {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

.person img {
  aspect-ratio: 3/3.6;
  object-fit: cover;
  width: 100%;
  filter: grayscale(0.25) contrast(1.03);
  border: 1px solid var(--line-dark);
  transition: filter 0.25s;
}

.person:hover img { filter: grayscale(0) contrast(1.03); }

.person h3 { font-size: 1rem; margin-top: 0.9rem; }

.person .role {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0.25rem 0 0.5rem;
}

.person p { font-size: 0.85rem; color: var(--ink-2); line-height: 1.5; }

/* stats / feature list */

.featlist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.featlist > div { background: var(--paper); padding: 1.6rem 1.75rem; }
.featlist h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.featlist p { font-size: 0.95rem; color: var(--ink-2); }

/* ---------- FAQ ---------- */

.faq { margin-top: 2.5rem; border-top: 1px solid var(--line); }

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 2rem;
  padding: 1.3rem 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.3rem;
  flex: none;
  transition: transform 0.2s;
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq .answer { padding: 0 0 1.6rem; max-width: 68ch; color: var(--ink-2); }

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--accent);
  color: #fff;
  border-bottom: 1px solid var(--line);
}

.cta-band .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding-top: 3rem;
  padding-bottom: 3rem;
  flex-wrap: wrap;
}

.cta-band h2 { max-width: 22ch; color: #fff; }

.cta-band .btn { background: var(--ink); border-color: var(--ink); }
.cta-band .btn:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* ---------- contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.contact-facts {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.contact-facts > div { padding: 1.5rem 1.75rem; border-bottom: 1px solid var(--line); }
.contact-facts > div:last-child { border-bottom: none; }

.contact-facts .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.contact-facts a { text-decoration: none; font-weight: 600; }
.contact-facts a:hover { color: var(--accent); }

form.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}

form.contact .full { grid-column: 1 / -1; }

form.contact label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  margin-bottom: 0.45rem;
  color: var(--ink-2);
}

form.contact input,
form.contact textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius);
  color: var(--ink);
}

form.contact input:focus, form.contact textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

form.contact .hint { font-size: 0.8rem; color: var(--ink-3); grid-column: 1 / -1; }

/* ---------- legal prose ---------- */

.legal {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.legal .prose { max-width: 72ch; }
.legal h2 { font-size: 1.5rem; margin: 2.2em 0 0.6em; }
.legal h3 { font-size: 1.15rem; margin: 1.6em 0 0.5em; }

.notice {
  border: 1px dashed var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--paper));
  padding: 1.25rem 1.5rem;
  font-size: 0.95rem;
  margin: 2rem 0;
}

/* ---------- footer ---------- */

footer.site {
  background: var(--ink);
  color: #b9bec6;
  font-size: 0.92rem;
}

footer.site .grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-top: 4rem;
  padding-bottom: 3rem;
}

footer.site h4 {
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 1.1rem;
}

footer.site ul { list-style: none; }
footer.site li { margin-bottom: 0.55rem; }
footer.site a { color: inherit; text-decoration: none; }
footer.site a:hover { color: #fff; }

footer.site .logo img { height: 2.2rem; margin-bottom: 1.2rem; }

.footer-certs { display: flex; gap: 1.2rem; margin-top: 1.5rem; align-items: center; }
.footer-certs img { height: 2.7rem; width: auto; filter: brightness(1.6); }

.footer-bottom {
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.footer-bottom .wrap {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 1.2rem;
  padding-bottom: 1.2rem;
  flex-wrap: wrap;
}

.footer-bottom ul { display: flex; gap: 1.5rem; list-style: none; }

/* ---------- reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-media { max-width: 34rem; }
  .split, .contact-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .team { grid-template-columns: repeat(3, 1fr); }
  footer.site .grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  nav.main {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem var(--pad) 1.5rem;
  }
  nav.main.open { display: block; }
  nav.main > ul { flex-direction: column; align-items: stretch; gap: 0; }
  nav.main a { padding: 0.8rem 0.5rem; border-bottom: 1px solid var(--line); }
  .submenu {
    position: static;
    display: block;
    border: none;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0 1rem;
    min-width: 0;
  }
  .has-sub > a::after { content: ""; }
  .cards { grid-template-columns: 1fr; }
  .team { grid-template-columns: 1fr 1fr; }
  .featlist { grid-template-columns: 1fr; }
  form.contact { grid-template-columns: 1fr; }
  footer.site .grid { grid-template-columns: 1fr; }
  .topbar .certs-mini { display: none; }
}