/* =========================================================================
   Interbauprojekt — Architektur- und Bauplanungsbuero
   Reines statisches Stylesheet. Keine externen Ressourcen.
   ========================================================================= */

/* --- Design-Tokens ----------------------------------------------------- */
:root {
  /* Farbsystem: warme Neutraltoene + ein praeziser Akzent */
  --c-bg:          #f6f3ee;   /* Off-White / Sand              */
  --c-bg-alt:      #efeae2;   /* leicht abgesetzte Flaechen    */
  --c-surface:     #ffffff;   /* Karten                        */
  --c-ink:         #23211e;   /* Anthrazit, Fliesstext         */
  --c-ink-soft:    #55514b;   /* gedaempfter Text              */
  --c-ink-faint:   #6c675f;   /* Feinheiten, Labels (AA-fest)  */
  --c-line:        #ddd6cb;   /* feine Linien                  */
  --c-line-strong: #c8bfb0;
  --c-accent:      #b4552d;   /* Terrakotta / gebrannte Erde   */
  --c-accent-deep: #8f4222;
  --c-accent-soft: #f0e2d8;
  --c-brand:       #1e5fd8;   /* Logoblau (Globus, "projekt")  */

  /* Typografie — System-Font-Stack, keine Web-Fonts */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
               Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
                "Times New Roman", serif;

  /* Fliessende Groessen */
  --step--1: clamp(0.83rem, 0.79rem + 0.18vw, 0.92rem);
  --step-0:  clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  --step-2:  clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --step-3:  clamp(2rem, 1.6rem + 2vw, 3.2rem);
  --step-4:  clamp(2.6rem, 1.9rem + 3.4vw, 4.6rem);

  /* Raster / Rhythmus */
  --wrap: 1160px;
  --gutter: clamp(1.25rem, 0.8rem + 2.2vw, 2.75rem);
  --section-y: clamp(4rem, 2.5rem + 6vw, 8rem);
  --radius: 4px;
  --shadow: 0 1px 2px rgba(35, 33, 30, 0.04),
            0 12px 30px -18px rgba(35, 33, 30, 0.25);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* --- Reset / Basis ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--c-ink);
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--c-accent-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--c-accent); }

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

ul { margin: 0; padding: 0; }

/* --- Zugaenglichkeit --------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 0; top: -100%;
  background: var(--c-ink);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 200;
  border-radius: 0 0 var(--radius) 0;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 0; color: #fff; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  overflow: hidden; white-space: nowrap;
}

/* --- Layout-Hilfen ----------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--alt { background: var(--c-bg-alt); }

.section-head { max-width: 46rem; margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent-deep);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 1.75rem; height: 1px;
  background: var(--c-accent);
}

.section-head h2 { font-size: var(--step-3); }
.section-head p { margin-top: 1rem; color: var(--c-ink-soft); font-size: var(--step-1); font-family: var(--font-sans); line-height: 1.5; }

/* --- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font: inherit;
  font-weight: 600;
  font-size: var(--step-0);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
              border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--c-accent); color: #fff; }
.btn--primary:hover { background: var(--c-accent-deep); color: #fff; }

.btn--ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-line-strong);
}
.btn--ghost:hover { border-color: var(--c-ink); color: var(--c-ink); }

.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* --- Header / Navigation ---------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--c-bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header[data-scrolled="true"] {
  border-bottom-color: var(--c-line);
  background: color-mix(in srgb, var(--c-bg) 92%, transparent);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--c-ink);
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.brand:hover { color: var(--c-ink); }
.brand .mark { flex: 0 0 auto; color: var(--c-brand); }
.brand .wordmark em { font-style: normal; color: var(--c-brand); }

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 0.4rem + 1.6vw, 2.25rem);
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--c-ink-soft);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.4rem 0;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1.5px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}
.nav-links a:hover, .nav-links a[aria-current="true"] { color: var(--c-ink); }
.nav-links a:hover::after, .nav-links a[aria-current="true"]::after { transform: scaleX(1); }

.nav-cta { margin-left: 0.5rem; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius);
  width: 2.75rem; height: 2.75rem;
  cursor: pointer;
  color: var(--c-ink);
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 1.35rem; height: 1.35rem; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-line);
    padding: 0.5rem var(--gutter) 1.25rem;
    box-shadow: var(--shadow);
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.3s var(--ease);
  }
  .nav-links[data-open="true"] { clip-path: inset(0 0 0 0); }
  .nav-links li { border-bottom: 1px solid var(--c-line); }
  .nav-links li:last-child { border-bottom: 0; }
  .nav-links a { display: block; padding: 0.9rem 0; font-size: 1.05rem; }
  .nav-links a::after { display: none; }
  .nav-cta { margin: 0.9rem 0 0; }
  .nav-cta .btn { width: 100%; justify-content: center; }
}

/* --- Hero -------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--c-bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: center;
  padding-block: clamp(3.5rem, 2rem + 6vw, 7rem);
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

.hero-copy { max-width: 34rem; }
.hero h1 {
  font-size: var(--step-4);
  margin-bottom: 1.25rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--c-accent);
}
.hero-lead {
  font-size: var(--step-1);
  color: var(--c-ink-soft);
  line-height: 1.5;
  margin-bottom: 2rem;
  font-family: var(--font-sans);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

.hero-meta {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--c-line);
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 1rem + 2vw, 3rem);
}
.hero-meta div { min-width: 5rem; }
.hero-meta dt {
  font-size: var(--step--1);
  color: var(--c-ink-faint);
  letter-spacing: 0.02em;
}
.hero-meta dd {
  margin: 0.15rem 0 0;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--c-ink);
}

/* Feines technisches Raster als wiederverwendbare Flaeche — reines CSS,
   nichts wird nachgeladen. Dient als "Blaupausen"-Passepartout fuer Fotos. */
.blueprint {
  background-color: var(--c-bg-alt);
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: clamp(30px, 4vw, 42px) clamp(30px, 4vw, 42px);
  background-position: center center;
}

/* Passermarken an den Ecken — kleiner Verweis auf technische Zeichnungen.
   Als eigene Komponente, damit Hero und Portrait dieselbe Sprache sprechen. */
.cmark {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 0 solid var(--c-accent);
  pointer-events: none;
  z-index: 1;
}
.cmark--tl { top: 10px; left: 10px; border-top-width: 2px; border-left-width: 2px; }
.cmark--tr { top: 10px; right: 10px; border-top-width: 2px; border-right-width: 2px; }
.cmark--bl { bottom: 10px; left: 10px; border-bottom-width: 2px; border-left-width: 2px; }
.cmark--br { bottom: 10px; right: 10px; border-bottom-width: 2px; border-right-width: 2px; }

/* Hero-Figur: ein Referenzfoto, auf der Blaupausen-Flaeche gerahmt.
   Statt das Logo (steht bereits im Header) als Bild zu wiederholen, zeigt der
   Hero gebaute Arbeit — das traegt eine Architektur-Seite. */
.hero-figure {
  position: relative;
  display: flex;
  justify-content: center;
  margin: 0;
}
.hero-plate {
  position: relative;
  width: 100%;
  padding: clamp(0.85rem, 0.5rem + 1.4vw, 1.4rem);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.hero-photo {
  position: relative;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: 0 18px 44px -26px rgba(35, 33, 30, 0.6);
}

/* --- Leistungen -------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: clamp(1rem, 0.6rem + 1.4vw, 1.75rem);
}
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 1.1rem + 1.2vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
              border-color 0.35s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--c-line-strong);
}
.card-icon {
  width: 3rem; height: 3rem;
  color: var(--c-accent);
  flex: 0 0 auto;
}
.card-icon svg { width: 100%; height: 100%; }
.card h3 { font-size: var(--step-1); }
.card p { color: var(--c-ink-soft); font-size: var(--step-0); }
.card .card-index {
  font-family: var(--font-serif);
  font-size: var(--step--1);
  color: var(--c-ink-faint);
  letter-spacing: 0.1em;
}

/* Digitale Planungshilfen — eigene Tools, als Kartenraster unter den Karten.
   Programme mit Beschreibungstext sitzen in einem <details> und klappen auf;
   die uebrigen sind reine Titelkarten im selben Raster. */
.tools-block {
  margin-top: clamp(2.5rem, 1.5rem + 3vw, 4rem);
  padding-top: clamp(2rem, 1.2rem + 2vw, 3rem);
  border-top: 1px solid var(--c-line);
}
.tools-block h3 { font-size: var(--step-1); margin-bottom: 0.5rem; }
.tools-block > p { color: var(--c-ink-soft); max-width: 40rem; margin-bottom: 1.5rem; }
.tools-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 21rem), 1fr));
  gap: 0.7rem;
  margin-bottom: 1.75rem;
}
.tools-list li {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  /* aufgeklappte Karte darf ueber ihre Rasterzeile hinauswachsen */
  align-self: start;
}
.tool-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.9rem;
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--c-ink);
}
.tool-name { flex: 1 1 auto; }

/* Aufklappbare Karte: Standard-Dreieck weg, eigener Chevron rechts */
summary.tool-head {
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s var(--ease);
}
summary.tool-head::-webkit-details-marker { display: none; }
summary.tool-head:hover { background: var(--c-bg-alt); }
summary.tool-head::after {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.15rem;
  border-right: 1.5px solid var(--c-accent);
  border-bottom: 1.5px solid var(--c-accent);
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.2s var(--ease);
}
.tool[open] > summary.tool-head::after {
  transform: translateY(1px) rotate(-135deg);
}
.tool[open] > summary.tool-head { border-bottom: 1px solid var(--c-line); }
.tool-body {
  padding: 0.85rem 0.9rem 1rem;
  font-size: var(--step--1);
  color: var(--c-ink-soft);
}
.tool-body p { margin-bottom: 0.7rem; }
.tool-body p:last-child { margin-bottom: 0; }
/* Kurzer Vorspann ueber der Beschreibung */
.tool-claim { color: var(--c-ink); font-weight: 500; }
/* Aufzaehlung in der Beschreibung: die Punkte duerfen nicht das
   Karten-Styling von .tools-list li erben */
.tool-body ul { list-style: disc; padding-left: 1.15rem; margin-bottom: 0.7rem; }
.tools-list .tool-body li {
  display: list-item;
  background: none;
  border: 0;
  border-radius: 0;
  margin-bottom: 0.2rem;
}

@media (prefers-reduced-motion: reduce) {
  summary.tool-head, summary.tool-head::after { transition: none; }
}

/* Echte App-Icons (eigene Farben/Form) — eigenes Icon-Set, kein Stroke */
.tool-icon {
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
  object-fit: contain;
  display: block;
}
/* Ausnahme: kein eigenes App-Icon vorhanden (WoFlV) — Linien-Icon im Seitenstil */
.tool-icon--line {
  width: 1.15rem;
  height: 1.15rem;
  margin-inline: 0.3rem;
  color: var(--c-accent);
}

/* --- Ueber uns ---------------------------------------------------------
   Bewusst textfrei (Kundenwunsch): nur das Portrait. Damit die Sektion nicht
   kahl wirkt, sitzt das Portrait im selben gerahmten Blaupausen-Passepartout
   wie die Hero-Figur — so liest es sich als gestaltetes Element, nicht als
   Luecke. Echtes Foto + Vita spaeter ergaenzbar. */
.about-solo {
  display: grid;
  justify-items: center;
}
.about-frame {
  position: relative;
  margin: 0;
  width: min(100%, 23rem);
  padding: clamp(0.85rem, 0.5rem + 1.4vw, 1.4rem);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.about-portrait {
  border-radius: 2px;
  overflow: hidden;
  background: var(--c-surface);
  aspect-ratio: 3 / 4;
  box-shadow: 0 18px 44px -26px rgba(35, 33, 30, 0.45);
}
.about-portrait svg { width: 100%; height: 100%; }

/* --- Projekte ---------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: clamp(1rem, 0.6rem + 1.4vw, 1.75rem);
}
.project {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-surface);
}
/* Bildbereich — einheitliches 3:2 fuer beide Karten, damit die Reihe ruhig
   und ausgewogen bleibt (klassisches Architekturfoto-Format). */
.project-media {
  aspect-ratio: 3 / 2;
  background: var(--c-bg-alt);
  position: relative;
}
.project-media svg { width: 100%; height: 100%; }
.project-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; }
/* Motive mit unruhigem Vordergrund etwas nach oben ziehen (weniger Baustelle) */
.project-media img.img-top { object-position: center 30%; }

/* Klickbare Medienflaeche, oeffnet die Foto-Galerie */
button.project-media--gallery {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  cursor: pointer;
  font: inherit;
  color: inherit;
}
.project-media-badge {
  position: absolute;
  left: 1rem; bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--step--1);
  font-weight: 600;
  color: #fff;
  background: color-mix(in srgb, var(--c-ink) 78%, transparent);
  backdrop-filter: blur(4px);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  transition: background 0.2s var(--ease);
}
.project-media-badge svg { width: 1.05rem; height: 1.05rem; flex: none; }
button.project-media--gallery:hover .project-media-badge,
button.project-media--gallery:focus-visible .project-media-badge {
  background: var(--c-accent);
}
button.project-media--gallery:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }

.project-tag {
  position: absolute;
  top: 1rem; left: 1rem;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
  background: color-mix(in srgb, var(--c-bg) 88%, transparent);
  backdrop-filter: blur(4px);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--c-line);
}
.project-body { padding: 1.25rem 1.4rem 1.5rem; }
.project-body h3 { font-size: var(--step-1); margin-bottom: 0.35rem; }
.project-body p { color: var(--c-ink-faint); font-size: var(--step--1); }

.projects-note {
  margin-top: 2rem;
  font-size: var(--step--1);
  color: var(--c-ink-faint);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.projects-note::before {
  content: "";
  width: 0.5rem; height: 0.5rem;
  border-radius: 50%;
  background: var(--c-accent);
}

/* --- Foto-Galerie (Lightbox) -------------------------------------------- */
.lightbox {
  /* Manche Browser wenden die UA-Regel "dialog:modal { position: fixed }"
     nicht zuverlaessig an — Zentrierung deshalb explizit erzwungen. */
  position: fixed;
  inset: 0;
  margin: auto;
  height: fit-content;
  max-height: 90vh;
  border: 0;
  border-radius: var(--radius);
  padding: 0;
  background: var(--c-surface);
  box-shadow: var(--shadow);
  max-width: min(90vw, 60rem);
  width: 100%;
  color: var(--c-ink);
}
.lightbox::backdrop {
  background: color-mix(in srgb, var(--c-ink) 70%, transparent);
  backdrop-filter: blur(2px);
}
.lightbox-figure {
  margin: 0;
  background: var(--c-bg-alt);
}
.lightbox-figure img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  background: var(--c-ink);
}
.lightbox-figure figcaption {
  padding: 1rem 1.4rem;
  font-size: var(--step--1);
  color: var(--c-ink-soft);
}
.lightbox-close,
.lightbox-nav {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem; height: 2.5rem;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  background: color-mix(in srgb, var(--c-surface) 92%, transparent);
  color: var(--c-ink);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.lightbox-close:hover,
.lightbox-nav:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.lightbox-close svg,
.lightbox-nav svg { width: 1.2rem; height: 1.2rem; }
.lightbox-close { top: 0.9rem; right: 0.9rem; }
.lightbox-nav { top: 50%; transform: translateY(-50%); }
.lightbox-prev { left: 0.9rem; }
.lightbox-next { right: 0.9rem; }
/* [hidden] von der UA-Stylesheet wird sonst durch das eigene "display" ueberstimmt */
.lightbox-nav[hidden] { display: none; }
.lightbox-counter {
  position: absolute;
  top: 0.9rem; left: 0.9rem;
  margin: 0;
  font-size: var(--step--1);
  color: #fff;
  background: color-mix(in srgb, var(--c-ink) 70%, transparent);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
}
@media (max-width: 640px) {
  .lightbox-nav, .lightbox-close { width: 2.2rem; height: 2.2rem; }
}

/* --- Kontakt ----------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 1rem + 4vw, 4.5rem);
  align-items: start;
}
@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}
.contact-head { margin-bottom: 2rem; }
.contact-head h2 { font-size: var(--step-3); }
.contact-list { list-style: none; display: grid; gap: 1.5rem; }
.contact-list li { display: flex; gap: 1rem; align-items: flex-start; }
.contact-list li > dl { margin: 0; }
.contact-list .ci {
  flex: 0 0 auto;
  width: 2.5rem; height: 2.5rem;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  border-radius: var(--radius);
  display: grid; place-items: center;
}
.contact-list .ci svg { width: 1.25rem; height: 1.25rem; }
.contact-list dt {
  font-size: var(--step--1);
  color: var(--c-ink-faint);
  letter-spacing: 0.02em;
}
.contact-list dd { margin: 0.1rem 0 0; }
.contact-list a { color: var(--c-ink); text-decoration: none; font-weight: 500; }
.contact-list a:hover { color: var(--c-accent-deep); }

.contact-card {
  background: var(--c-ink);
  color: #f4f0ea;
  border-radius: var(--radius);
  padding: clamp(1.75rem, 1.2rem + 2vw, 2.75rem);
  box-shadow: var(--shadow);
}
.contact-card h3 { color: #fff; font-size: var(--step-2); margin-bottom: 0.75rem; }
.contact-card p { color: #cbc4ba; }
.contact-card .contact-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
.contact-card .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.35); }
.contact-card .btn--ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.06); }

/* --- Footer ------------------------------------------------------------ */
.site-footer {
  background: var(--c-bg-alt);
  border-top: 1px solid var(--c-line);
  padding-block: clamp(2.5rem, 1.5rem + 3vw, 4rem) 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(1.5rem, 1rem + 3vw, 3.5rem);
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--c-line);
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand p { color: var(--c-ink-soft); font-size: var(--step--1); max-width: 24rem; }
.footer-col h4 {
  font-family: var(--font-sans);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-ink-faint);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; display: grid; gap: 0.6rem; }
.footer-col a { color: var(--c-ink-soft); text-decoration: none; font-size: var(--step-0); }
.footer-col a:hover { color: var(--c-accent-deep); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.75rem;
  font-size: var(--step--1);
  color: var(--c-ink-faint);
}
.footer-bottom nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-bottom a { color: var(--c-ink-faint); text-decoration: none; }
.footer-bottom a:hover { color: var(--c-ink); }

/* --- Reveal-on-scroll -------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card, .nav-links a::after { transition: none; }
}

/* --- Rechtsseiten (Impressum / Datenschutz) ---------------------------- */
.legal { padding-block: clamp(3rem, 2rem + 4vw, 5.5rem); }
.legal .wrap { max-width: 52rem; }
.legal .eyebrow { margin-bottom: 1rem; }
.legal h1 { font-size: var(--step-3); margin-bottom: 2rem; }
.legal h2 {
  font-size: var(--step-1);
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-line);
}
.legal h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 1.5rem; }
.legal p, .legal li { color: var(--c-ink-soft); }
.legal address { font-style: normal; }
.legal ul { padding-left: 1.2rem; list-style: disc; display: grid; gap: 0.4rem; margin: 0.5rem 0 1rem; }
.legal a { color: var(--c-accent-deep); }
.legal .back-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 3rem; font-weight: 600; text-decoration: none;
}
.legal .back-link:hover { gap: 0.75rem; }

.legal dl.legal-data { display: grid; gap: 0.35rem; margin: 0.5rem 0 1rem; }
.legal dl.legal-data div { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.legal dl.legal-data dt { color: var(--c-ink-faint); min-width: 9rem; }
.legal dl.legal-data dd { margin: 0; color: var(--c-ink); }