/* ==========================================================================
   Layout — Grid, Header, Footer, Sections
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap);
}

.grid-lines {
  position: relative;
}

.grid-lines::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line-color, rgba(27,29,33,.05)) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-color, rgba(27,29,33,.05)) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: 0;
}

.grid-lines > * { position: relative; z-index: 1; }

.section {
  padding-block: clamp(3.5rem, 6vw, 7rem);
}

.section--tight { padding-block: clamp(2.5rem, 4vw, 4.5rem); }

.section--dark {
  background: var(--primary);
  color: var(--on-dark);
  --grid-line-color: rgba(244,243,240,.06);
}

.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--on-dark); }
.section--dark p { color: var(--on-dark-muted); }
.section--dark .eyebrow { color: var(--on-dark-muted); }

.section--surface { background: var(--surface); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.section-head h2 { margin-bottom: 0; max-width: 34rem; }
.section-head p { margin-top: 0.75rem; }

/* ---------- Skip / Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  transition: padding var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.35rem;
  transition: padding var(--dur-base) var(--ease-out);
}

.site-header.is-condensed .site-header__bar {
  padding-block: 0.7rem;
}

.site-header.is-condensed {
  box-shadow: 0 8px 24px -16px rgba(27,29,33,0.35);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--primary);
  line-height: 1.15;
}

.brand__mark {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  background: var(--primary);
  color: var(--accent);
  display: grid;
  place-items: center;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: transform var(--dur-base) var(--ease-out);
}

.site-header.is-condensed .brand__mark { transform: scale(0.86); }

.brand__mark svg { width: 20px; height: 20px; }

.brand small {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2.1rem;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 2.1rem);
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.main-nav a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(0.82rem, 0.9vw, 0.92rem);
  letter-spacing: 0.01em;
  color: var(--primary);
  position: relative;
  padding-block: 0.3rem;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transition: right var(--dur-base) var(--ease-out);
}

.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after {
  right: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.header-phone {
  display: none;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.nav-toggle__bars {
  position: relative;
  width: 20px; height: 14px;
}

.nav-toggle__bars span {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast) linear, top var(--dur-base) var(--ease-out);
}

.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 6px; }
.nav-toggle__bars span:nth-child(3) { top: 12px; }

.nav-open .nav-toggle__bars span:nth-child(1) { top: 6px; transform: rotate(45deg); }
.nav-open .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle__bars span:nth-child(3) { top: 6px; transform: rotate(-45deg); }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--primary);
  color: var(--on-dark);
  padding-block: clamp(3rem, 5vw, 5rem) 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(244,243,240,.14);
}

.footer-col h4 {
  color: var(--on-dark);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  margin-bottom: 1.3rem;
}

.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.7rem; }
.footer-col a { color: var(--on-dark-muted); transition: color var(--dur-fast) var(--ease-out); }
.footer-col a:hover { color: var(--accent); }

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--on-dark-muted);
  margin-bottom: 0.7rem;
}
.footer-contact-item .icon { color: var(--accent); flex-shrink: 0; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.8rem;
  font-size: 0.82rem;
  color: var(--on-dark-muted);
}

.footer-bottom ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0; padding: 0;
}
.footer-bottom a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */

/* Burger-Schwelle liegt bei 1180px statt 900px: Firmenname + 6 Menüpunkte +
   Telefonnummer quetschen sich sonst zwischen 900–1200px (Standard-Laptop-
   Breite) in eine zweizeilige Navbar. */
@media (min-width: 1180px) {
  .header-phone { display: inline-flex; }
}

@media (max-width: 1179.98px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(360px, 86vw);
    height: 100vh;
    background: var(--primary);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 6.5rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-out);
    z-index: 90;
    overflow-y: auto;
  }

  .nav-open .main-nav { transform: translateX(0); }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.6rem;
    width: 100%;
  }

  .main-nav a {
    color: var(--on-dark);
    font-size: 1.15rem;
    display: block;
    padding-block: 0.65rem;
    min-height: 44px;
  }
  .main-nav a::after { display: none; }
  .main-nav ul { gap: 0.4rem; }

  .nav-scrim {
    position: fixed;
    inset: 0;
    background: rgba(27,29,33,.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-base) var(--ease-out);
    z-index: 85;
  }
  .nav-open .nav-scrim { opacity: 1; visibility: visible; }

  .nav-toggle { display: inline-flex; }
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .grid-12 { gap: 1rem; }
}