/* ============================================================
   Patricia Ramiro Architekten BDA — Website
   Schlichtes, responsives Design. Kein Framework, keine Fonts
   von externen Servern, keine Abhaengigkeiten.
   ============================================================ */

:root{
  --bg:            #faf9f7;
  --bg-alt:        #f0eee9;
  --ink:           #1c1b19;
  --ink-soft:      #55524c;
  --ink-faint:     #8a877f;
  --line:          #ddd9d1;
  --line-strong:   #1c1b19;
  --accent:        #6b6455;
  --max:           1200px;
  --gap:           clamp(1.25rem, 2.5vw, 2.5rem);
  --section-pad:   clamp(3.5rem, 8vw, 7rem);
  --radius:        2px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3,h4{ margin: 0 0 0.6em; font-weight: 500; letter-spacing: 0.01em; }
p{ margin: 0 0 1em; }
ul{ margin: 0; padding: 0; list-style: none; }
.container{ max-width: var(--max); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 3rem); }

.eyebrow{
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.9em;
}

h1{ font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.12; }
h2{ font-size: clamp(1.6rem, 3.4vw, 2.3rem); line-height: 1.2; }
h3{ font-size: clamp(1.15rem, 2vw, 1.4rem); }
.lede{ font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--ink-soft); max-width: 46em; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.6em;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover{ background: var(--ink); color: var(--bg); }
.btn-fill{ background: var(--ink); color: var(--bg); }
.btn-fill:hover{ background: transparent; color: var(--ink); }
.btn-row{ display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 1.8rem; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}
.brand{ display: flex; align-items: center; gap: 0.75rem; }
.brand img{ height: 40px; width: auto; }
.brand-text{ font-size: 0.8rem; color: var(--ink-soft); letter-spacing: 0.02em; display: none; }

.nav-toggle{
  display: none;
  border: 1px solid var(--line-strong);
  background: none;
  width: 42px; height: 42px;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content: "";
  position: absolute;
  left: 10px; right: 10px;
  height: 1px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle span{ top: 50%; }
.nav-toggle span::before{ top: -7px; }
.nav-toggle span::after{ top: 7px; }
.nav-toggle[aria-expanded="true"] span{ background: transparent; }
.nav-toggle[aria-expanded="true"] span::before{ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ transform: translateY(-7px) rotate(-45deg); }

.main-nav ul{ display: flex; gap: clamp(1.1rem, 2vw, 2.2rem); align-items: center; }
.main-nav a{
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  padding: 0.3em 0;
  border-bottom: 1px solid transparent;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ border-bottom-color: var(--ink); }
.main-nav .nav-cta{
  border: 1px solid var(--line-strong);
  padding: 0.55em 1.2em;
  border-radius: var(--radius);
}
.main-nav .nav-cta:hover{ background: var(--ink); color: var(--bg); border-bottom-color: var(--ink); }

@media (max-width: 780px){
  .nav-toggle{ display: block; }
  .main-nav{
    position: fixed;
    inset: 65px 0 0 0;
    background: var(--bg);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    border-top: 1px solid var(--line);
  }
  .main-nav.is-open{ opacity: 1; pointer-events: auto; transform: translateY(0); }
  .main-nav ul{ flex-direction: column; align-items: flex-start; gap: 0; padding: 1.5rem clamp(1.25rem,4vw,3rem); }
  .main-nav li{ width: 100%; border-bottom: 1px solid var(--line); }
  .main-nav a{ display: block; padding: 1em 0; }
  .main-nav .nav-cta{ border: none; padding: 1em 0; }
  .main-nav .nav-cta:hover{ background: none; color: var(--ink); }
}

/* ---------- Hero ---------- */
.hero{
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: var(--gap);
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}
.hero-media{ aspect-ratio: 4/5; overflow: hidden; background: var(--bg-alt); }
.hero-media img{ width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px){
  .hero{ grid-template-columns: 1fr; }
  .hero-media{ order: -1; aspect-ratio: 16/10; }
}

.page-hero{
  padding: clamp(2.75rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line);
}

/* ---------- Sections ---------- */
section{ padding: var(--section-pad) 0; }
.section-alt{ background: var(--bg-alt); }
.section-head{ max-width: 46em; margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.divider{ border: none; border-top: 1px solid var(--line); margin: 0; }

/* ---------- Two column / feature rows ---------- */
.split{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
@media (max-width: 860px){ .split{ grid-template-columns: 1fr; } }
.split img{ width: 100%; aspect-ratio: 4/5; object-fit: cover; }

/* ---------- Cards / tiles (Leistungen) ---------- */
.tiles{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.tile{ background: var(--bg); padding: clamp(1.8rem, 3vw, 2.6rem); }
.tile .num{ font-size: 0.8rem; color: var(--ink-faint); letter-spacing: 0.1em; }
@media (max-width: 700px){ .tiles{ grid-template-columns: 1fr; } }

/* ---------- Project categories / gallery ---------- */
.project-block + .project-block{ border-top: 1px solid var(--line); }
.project-head{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: clamp(1.6rem, 3vw, 2.4rem);
}
.project-head p{ margin: 0; color: var(--ink-soft); max-width: 38em; }

.gallery{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.6rem, 1.4vw, 1rem);
}
.gallery a{ display: block; overflow: hidden; aspect-ratio: 4/3; background: var(--bg-alt); }
.gallery img{ width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.gallery a:hover img{ transform: scale(1.045); }
.gallery .tall{ aspect-ratio: 3/4; }
@media (max-width: 860px){ .gallery{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px){ .gallery{ grid-template-columns: 1fr; } .gallery .tall{ aspect-ratio: 4/3; } }

/* ---------- Vita timeline ---------- */
.timeline{ border-top: 1px solid var(--line); }
.timeline li{
  display: grid;
  grid-template-columns: 9em 1fr;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}
.timeline .year{ color: var(--ink-faint); font-size: 0.92rem; letter-spacing: 0.03em; }
@media (max-width: 560px){ .timeline li{ grid-template-columns: 1fr; gap: 0.3rem; } }

.facts{ display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; margin-top: 1.6rem; }
.facts li{
  border: 1px solid var(--line);
  padding: 0.5em 1em;
  font-size: 0.88rem;
  color: var(--ink-soft);
  border-radius: var(--radius);
}

/* ---------- Kontakt ---------- */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
}
@media (max-width: 860px){ .contact-grid{ grid-template-columns: 1fr; } }
.contact-list{ margin-top: 1.6rem; }
.contact-list li{ padding: 0.9rem 0; border-top: 1px solid var(--line); }
.contact-list li:last-child{ border-bottom: 1px solid var(--line); }
.contact-list .label{ display: block; font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 0.35em; }
.contact-list .value{ font-size: 1.1rem; }
.map-frame{
  display: block;
  border: 1px solid var(--line);
  aspect-ratio: 4/3;
  background: var(--bg-alt);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.map-frame:hover{ background: var(--line); border-color: var(--line-strong); }
.map-frame-inner{
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1.5rem;
  text-align: center;
}
.map-frame-inner svg{ color: var(--accent); }
.map-frame-text{ font-size: 0.95rem; letter-spacing: 0.02em; text-decoration: underline; text-underline-offset: 0.2em; }
.map-frame-address{ font-size: 0.82rem; color: var(--ink-faint); }

/* ---------- CTA band ---------- */
.cta-band{
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: clamp(3rem, 7vw, 5rem) 0;
}
.cta-band h2{ margin-bottom: 0.4em; }
.cta-band .btn-row{ justify-content: center; }

/* ---------- Footer ---------- */
.site-footer{ padding: clamp(2.5rem, 5vw, 3.5rem) 0 2rem; border-top: 1px solid var(--line); }
.footer-grid{
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-grid img{ height: 34px; margin-bottom: 0.9rem; }
.footer-grid h4{ font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 0.9em; }
.footer-grid li{ padding: 0.35em 0; color: var(--ink-soft); }
.footer-grid a:hover{ color: var(--ink); }
.footer-bottom{
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--ink-faint);
}
.footer-bottom ul{ display: flex; gap: 1.5rem; }
@media (max-width: 700px){ .footer-grid{ grid-template-columns: 1fr; } }

/* ---------- Lightbox ---------- */
.lightbox{
  position: fixed; inset: 0; background: rgba(20,19,17,0.94);
  display: none; align-items: center; justify-content: center;
  z-index: 1000; padding: 4vh 4vw;
}
.lightbox.is-open{ display: flex; }
.lightbox img{ max-width: 100%; max-height: 92vh; width: auto; height: auto; margin: 0 auto; }
.lightbox-close{
  position: absolute; top: 1.2rem; right: 1.4rem;
  color: #fff; background: none; border: 1px solid rgba(255,255,255,0.5);
  width: 42px; height: 42px; border-radius: 50%; cursor: pointer; font-size: 1.1rem;
}
.lightbox-nav{
  position: absolute; top: 50%; transform: translateY(-50%);
  background: none; border: 1px solid rgba(255,255,255,0.5); color: #fff;
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer; font-size: 1.2rem;
}
.lightbox-prev{ left: 1rem; }
.lightbox-next{ right: 1rem; }

/* ---------- Small note ---------- */
.note{
  font-size: 0.82rem;
  color: var(--ink-faint);
  padding: 1.6rem 0 0;
  max-width: 46em;
}

/* ---------- Legal ---------- */
.legal h2{ margin-top: 2em; font-size: 1.2rem; }
.legal p, .legal ul{ color: var(--ink-soft); }

/* ---------- Utility ---------- */
.center{ text-align: center; }
.mt-0{ margin-top: 0; }