/* Arba Holz – prototype styles (rebuild of arbaholz.ch) */
:root {
  --green: #2cac59;
  --ink: #3a3a3a;      /* headings */
  --text: #595959;     /* body */
  --line: #e2e2e2;
  --maxw: 1040px;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header { padding: 28px 0 8px; }
.logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
}
.logos img { width: 92px; height: 92px; }

.main-nav {
  display: flex;
  justify-content: center;
  gap: clamp(28px, 7vw, 96px);
  padding: 26px 0 8px;
  flex-wrap: wrap;
}

/* Hamburger toggle – hidden on desktop, shown on mobile */
.nav-toggle {
  display: none;
  position: absolute;
  top: 28px;
  right: 24px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: 0;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
}
.nav-toggle-bar {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(1) { transform: translateY(9.5px) rotate(45deg); }
.nav-toggle.is-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle.is-open .nav-toggle-bar:nth-child(3) { transform: translateY(-9.5px) rotate(-45deg); }
.main-nav a {
  text-transform: uppercase;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--ink);
}
.main-nav a:hover { color: var(--green); }
.main-nav a.is-active { color: var(--green); }

/* dropdowns */
.nav-item { position: relative; }
.nav-item > a { display: inline-block; }
.sub-toggle { display: none; } /* chevron: mobile only */
.nav-sub {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(0,0,0,0.07);
  padding: 8px 0;
  min-width: 180px;
  display: none;
  z-index: 30;
}
.nav-item:hover .nav-sub,
.nav-item:focus-within .nav-sub { display: block; }
.nav-sub a {
  display: block;
  padding: 8px 20px;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
  white-space: nowrap;
  text-align: center;
}

/* ---------- Generic ---------- */
main { padding: 40px 0 60px; }
h1, h2, h3 { color: var(--ink); font-weight: 700; }
h1 { font-size: 26px; }
h2 { font-size: 21px; margin: 0 0 18px; }
h3 { font-size: 16px; margin: 0 0 4px; }
p { margin: 0 0 16px; }
.muted { color: #8a8a8a; }

/* ---------- Home hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
  align-items: start;
}
.hero-art img { width: 100%; }
.section-label { margin: 40px 0 22px; color: var(--ink); font-weight: 700; }

/* ---------- Partner / Doppelpack rows ---------- */
.partner {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 22px;
  align-items: start;
  margin-bottom: 28px;
}
.partner-icon img {
  width: 80px; height: 80px;
  border-radius: 50%;
}

/* ---------- Angebot (services) ---------- */
.page-title { text-align: center; font-size: 40px; letter-spacing: 1px; margin: 10px 0 18px; }
.lead {
  max-width: 560px; margin: 0 auto 48px; text-align: center; color: var(--text);
}
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card img,
.service-ph {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  background: #e9f0fb; border-radius: 2px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center; color: #b9cdec;
}
.service-card h3 { margin-bottom: 8px; }

/* ---------- Kontakt ---------- */
.contact-meta {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; margin-bottom: 40px;
}
.contact-meta h3 { color: var(--ink); }
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px 28px; max-width: 720px;
}
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--ink); }
input, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #cfcfcf; border-radius: 2px;
  font-family: inherit; font-size: 14px; color: var(--ink); background: #fff;
}
textarea { min-height: 130px; resize: vertical; }
button {
  background: var(--green); color: #fff; border: 0; padding: 12px 28px;
  font-weight: 700; font-size: 14px; border-radius: 2px; cursor: pointer;
}
button:hover { filter: brightness(0.95); }
.form-note { font-size: 13px; }
.form-note.ok { color: var(--green); }
.form-note.err { color: #c0392b; }

/* ---------- Angebot overview ---------- */
.cat-links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 0;
  margin: 0 auto 44px; max-width: 760px;
}
.cat-links a { padding: 0 14px; border-right: 1px solid var(--line); font-weight: 700; font-size: 14px; }
.cat-links a:first-child { border-left: 1px solid var(--line); }
.cat-links a:hover { color: var(--green); }
.cat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.cat-card-img { aspect-ratio: 4 / 3; overflow: hidden; background: #f0f0f0; margin-bottom: 12px; }
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.cat-card:hover .cat-card-img img { transform: scale(1.04); }
.cat-card h3 { text-align: center; }
.cat-card:hover h3 { color: var(--green); }

/* ---------- Gallery ---------- */
.gallery-intro { max-width: 720px; margin-bottom: 32px; }
.gallery-section-title {
  font-size: 22px;
  font-weight: 600;
  margin: 64px 0 24px;
}
.gallery-section-title:first-of-type { margin-top: 16px; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.gallery-cell { margin: 0; }
.gallery-cell figcaption {
  text-align: center; font-size: 14px; color: var(--ink); padding: 8px 0 0;
}
.gallery-item {
  display: block;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f0f0f0;
  cursor: zoom-in;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img { transform: scale(1.04); }

/* lightbox */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.9);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.lightbox[hidden] { display: none; }
.lightbox-img { max-width: 90vw; max-height: 88vh; object-fit: contain; }
.lightbox button {
  position: absolute; background: none; border: 0; color: #fff;
  font-size: 40px; line-height: 1; cursor: pointer; padding: 12px;
  opacity: 0.8;
}
.lightbox button:hover { opacity: 1; }
.lightbox-close { top: 10px; right: 18px; font-size: 44px; }
.lightbox-prev { left: 10px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 10px; top: 50%; transform: translateY(-50%); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 30px 0 60px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 24px; }
.footer-grid h4 { margin: 0 0 6px; color: var(--ink); font-size: 14px; }
.footer-grid address { font-style: normal; color: var(--text); line-height: 1.5; }
.footer-legal { display: flex; gap: 22px; justify-content: flex-end; align-items: flex-start; }
.footer-legal a:hover { color: var(--green); }

/* ---------- Floating side icons ---------- */
.side-icons {
  position: fixed; right: 14px; top: 45%; display: flex; flex-direction: column; gap: 14px; z-index: 20;
}
.side-icons img { width: 26px; height: 26px; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; gap: 24px; }
  .hero-art { max-width: 280px; }
  .services { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .cat-grid { grid-template-columns: 1fr; }
  .site-header .wrap { position: relative; }
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    padding: 10px 0 16px;
  }
  .main-nav.is-open { display: flex; }
  .nav-item { text-align: center; }
  /* dropdown parents: chevron + label on one centered row */
  /* whole parent row is the tap target (toggles its submenu) */
  .nav-item.has-sub { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; padding: 8px 0; cursor: pointer; }
  .nav-item.has-sub > a { pointer-events: none; } /* row handles the tap, not the label link */
  .sub-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 0;
    padding: 0;
    color: var(--ink);
    cursor: pointer;
  }
  .sub-toggle svg { width: 22px; height: 22px; transition: transform 0.2s; }
  .nav-item.is-sub-open .sub-toggle svg { transform: rotate(180deg); }
  /* submenu collapsed by default, expands when its chevron is toggled */
  .nav-sub { position: static; transform: none; border: 0; box-shadow: none; padding: 0; display: none; min-width: 0; width: 100%; }
  .nav-item.is-sub-open .nav-sub { display: block; padding: 4px 0 10px; }
  .nav-sub a { padding: 5px; }
  .contact-meta { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-legal { justify-content: flex-start; }
  .page-title { font-size: 30px; }
  .side-icons { display: none; }
}