*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Barlow', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s, color 0.4s;
}

:root {
  --bg:      #F4F3F0;
  --bg2:     #EAE8E4;
  --bg3:     #DEDAD6;
  --text:    #1C1A18;
  --text2:   #5C5852;
  --text3:   #9C9690;
  --border:  #D8D4CF;
  --border2: #B4AEA8;
  --terra:   #BF4E30;
  --terra2:  #983D24;
  --card:    #FFFFFF;
  --dark-bg: #1C1A18;
  --noise-op: 0.022;
}
[data-theme="dark"] {
  --bg:      #252119;
  --bg2:     #2D2924;
  --bg3:     #35312B;
  --text:    #EDE9E4;
  --text2:   #948E86;
  --text3:   #75706A;
  --border:  #3A352F;
  --border2: #524C46;
  --terra:   #BF4E30;
  --terra2:  #983D24;
  --card:    #2D2924;
  --dark-bg: #1A1714;
  --noise-op: 0.038;
}

/* ── Noise texture ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: var(--noise-op);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ── Scroll progress bar ── */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--terra);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ── Scroll reveal ── */
.r {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.r.in { opacity: 1; transform: none; }
.d1 { transition-delay: .04s; }
.d2 { transition-delay: .10s; }
.d3 { transition-delay: .16s; }
.d4 { transition-delay: .22s; }
.d5 { transition-delay: .28s; }

/* ── Nav links ── */
.nav-link {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text2);
  text-decoration: none;
  transition: color .2s;
}
.nav-link:hover, .nav-link.active { color: var(--text); }

/* ── Logo ── */
.nav-logo { height: 26px; width: auto; display: block; }

/* ── Theme toggle ── */
.theme-toggle {
  background: none;
  border: 0.5px solid var(--border);
  border-radius: 6px;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text2);
  transition: border-color .15s, color .15s, background .15s;
}
.theme-toggle:hover { border-color: var(--border2); color: var(--text); background: var(--bg2); }

/* ── CTA buttons ── */
.btn-primary {
  display: inline-block;
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 11px 26px;
  border-radius: 4px;
  background: var(--terra);
  color: #fff;
  text-decoration: none;
  border: none; cursor: pointer;
  transition: background .15s, transform .1s;
  user-select: none;
}
.btn-primary:hover { background: var(--terra2); }
.btn-primary:active { transform: scale(0.975); }

.btn-secondary {
  display: inline-block;
  font-family: 'Barlow', sans-serif;
  font-size: 13px; font-weight: 500;
  padding: 11px 22px;
  border-radius: 4px;
  border: 0.5px solid var(--border2);
  color: var(--text2);
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
  user-select: none;
}
.btn-secondary:hover { border-color: var(--text); color: var(--text); background: var(--bg2); }

/* ── Hero stat (right column) ── */
.hstat { padding: 1.4rem 0; border-top: 0.5px solid var(--border); }
.hstat:last-child { border-bottom: 0.5px solid var(--border); }

/* ── Utility: small caps metadata label ── */
.meta-label {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text3);
}

/* ── Utility: tag chip text ── */
.tag-text {
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.02em;
}

/* ── Card: type + period row ── */
.card-type-row {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  display: flex;
  gap: 5px;
  align-items: center;
}

/* ── Section header ── */
.sh-row {
  display: flex; align-items: center; gap: 1.25rem;
  margin-bottom: 3rem;
}
.sh-label {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text3);
  flex-shrink: 0;
}
.sh-label-dark { color: rgba(236,232,227,0.35); }
.sh-rule { flex: 1; height: 0.5px; background: var(--border); }
.sh-rule-dark { background: rgba(255,255,255,0.08); }

/* ── Project hero card ── */
.p-hero-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  height: 100%;
  display: flex; flex-direction: column;
  transition: border-color .3s, box-shadow .3s, transform .3s;
}
.p-hero-card:hover {
  border-color: var(--terra);
  box-shadow: 0 10px 36px rgba(191,78,48,0.10);
  transform: translateY(-3px);
}

.past-grid:has(.p-hero-card:hover) .p-hero-card:not(:hover),
.hero-grid-inner:has(.p-hero-card:hover) .p-hero-card:not(:hover) {
  filter: blur(0.8px);
  opacity: 0.85;
  transition: filter .3s, opacity .3s, transform .3s;
}
.p-hero-card {
  transition: border-color .3s, box-shadow .3s, transform .3s, filter .3s, opacity .3s;
}

/* ── Leistungen dark cards ── */
.leist-dark-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  align-items: stretch;
}

.lcard {
  padding: 2.5rem 2.25rem;
  border-right: 0.5px solid var(--border);
  transition: background .25s;
}
.lcard > ul { padding-top: 1.75rem; }
.lcard:last-child { border-right: none; }
.lcard:hover { background: rgba(0,0,0,0.025); }

.lcard-num {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 88px;
  font-weight: 700;
  color: var(--text);
  opacity: 0.06;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
  transition: opacity .3s;
  user-select: none;
}
.lcard:hover .lcard-num { opacity: 0.12; }

.h1-link {
  cursor: pointer;
  transition: color .2s;
  display: inline-block;
}
.h1-link:hover { color: var(--terra); }

.lcard-glow {
  box-shadow: 0 0 0 1.5px var(--terra), 0 0 32px rgba(191,78,48,0.12);
  transition: box-shadow .4s ease;
}
.lcard-glow-out {
  box-shadow: none;
  transition: box-shadow 1s ease;
}

/* ── Hamburger ── */
.hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: var(--terra); border: none; cursor: pointer;
  padding: 0; border-radius: 6px;
  transition: background .15s;
}
.hamburger:hover { background: var(--terra2); }
.hamburger span {
  display: block; width: 18px; height: 2px;
  background: #fff; border-radius: 2px;
  transition: transform .25s cubic-bezier(0.22,1,0.36,1), opacity .2s;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile menu ── */
.mobile-menu {
  position: fixed; inset: 0; z-index: 199;
  background: var(--bg);
  padding-top: 56px;
  transform: translateY(-100%);
  transition: transform .35s cubic-bezier(0.22,1,0.36,1);
  pointer-events: none;
}
.mobile-menu.open { transform: translateY(0); pointer-events: all; }
.mobile-menu-inner {
  display: flex; flex-direction: column;
  padding: 2.5rem 2rem;
  border-top: 0.5px solid var(--border);
}
.mob-link {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 28px; font-weight: 500;
  color: var(--text); text-decoration: none;
  padding: .6rem 0;
  border-bottom: 0.5px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  transition: color .15s;
  letter-spacing: 0.01em;
}
.mob-link:last-of-type { border-bottom: none; }
.mob-link:hover { color: var(--terra); }

/* ── Scroll-to-top ── */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 40px; height: 40px;
  border-radius: 6px;
  background: var(--card);
  border: 0.5px solid var(--border2);
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--text2);
  z-index: 197;
  opacity: 0; pointer-events: none;
  transform: translateY(8px);
  transition: opacity .25s, transform .25s, background .15s, color .15s;
}
.scroll-top-btn.visible { opacity: 1; pointer-events: all; transform: translateY(0); }
.scroll-top-btn:hover { background: var(--terra); color: #fff; border-color: var(--terra); }

/* ── Hero right panel (FAQ, merged with hero) ── */
.hero-right-panel {
  flex-shrink: 0;
  width: 38%;
  min-width: 280px;
  max-width: 500px;
  background: transparent;
  border-left: 0.5px solid var(--border);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 0;
  min-height: 560px;
}


/* FAQ float animation */
@keyframes faqBob {
  0%, 100% { transform: translateY(0px); }
  30%       { transform: translateY(-7px); }
  65%       { transform: translateY(-3px); }
}

/* Stats inside right panel */
.rpanel-stat {
  padding: 1.2rem 0;
  border-top: 0.5px solid rgba(255,255,255,0.09);
}
.rpanel-stat:last-child {
  border-bottom: 0.5px solid rgba(255,255,255,0.09);
}

/* Mobile stats row (shown only when panel is hidden) */
.hero-stats-mobile {
  display: none;
  border-top: 0.5px solid var(--border);
  padding-top: 1.75rem;
  grid-template-columns: repeat(3, auto);
  gap: 0;
  width: 100%;
}
.hero-stats-mobile-item {
  padding-right: 2rem;
}
.hero-stats-mobile-item + .hero-stats-mobile-item {
  padding-left: 2rem;
  border-left: 0.5px solid var(--border);
}

/* ── Past projects grid ── */
.past-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

/* ── Responsive ── */

/* Tablet: 601px – 900px */
@media (max-width: 900px) {
  .past-grid { grid-template-columns: repeat(2, 1fr); }
  /* Leistungen: 2 Spalten nur zwischen 801px–900px */
}
@media (min-width: 801px) and (max-width: 900px) {
  .leist-dark-grid { grid-template-columns: 1fr 1fr; }
  .lcard:nth-child(2) { border-right: none; }
}

/* Mobile: ≤ 800px */
@media (max-width: 800px) {
  .nav-links, .nav-cta { display: none !important; }
  .hamburger { display: flex !important; }
  .hero-right-panel { display: none !important; }
  .hero-stats-mobile { display: grid !important; }
  .leist-dark-grid { grid-template-columns: 1fr !important; }
  .lcard { border-right: none !important; border-bottom: 0.5px solid var(--border); }
  .lcard:last-child { border-bottom: none !important; }
  .about-row-inner { flex-direction: column !important; }
  .fcols { grid-template-columns: 1fr !important; }
  .scroll-top-btn {
    bottom: 1.25rem; right: 1.25rem;
    background: var(--terra); color: #fff; border-color: var(--terra);
  }
  .scroll-top-btn:hover { background: var(--terra); color: #fff; border-color: var(--terra); }
}

/* Kleines Mobile: ≤ 640px */
@media (max-width: 640px) {
  .hero-flex-grid { flex-direction: column !important; }
  .past-grid { grid-template-columns: 1fr !important; }
}

/* Sehr kleines Mobile: ≤ 380px */
@media (max-width: 380px) {
  .hero-stats-mobile {
    grid-template-columns: 1fr !important;
    gap: 0.75rem !important;
  }
  .hero-stats-mobile-item {
    padding: 0 !important;
    border-left: none !important;
    border-top: 0.5px solid var(--border);
    padding-top: 0.75rem !important;
  }
  .hero-stats-mobile-item:first-child { border-top: none; }
}