/* ============================================================
   Viatron GmbH — Statische Website
   Deep Navy & Gold · DM Serif Display + DM Sans
   ============================================================ */

:root {
  --bg: hsl(40, 20%, 98%);
  --fg: hsl(215, 25%, 12%);
  --card: hsl(40, 15%, 96%);
  --primary: hsl(215, 30%, 16%);
  --primary-fg: hsl(40, 25%, 96%);
  --secondary: hsl(40, 20%, 93%);
  --muted: hsl(215, 12%, 48%);
  --accent: hsl(32, 80%, 50%);
  --accent-fg: hsl(0, 0%, 100%);
  --border: hsl(40, 12%, 88%);

  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --container: 1200px;
  --radius: 0.5rem;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 400; line-height: 1.15; }
h1 { font-size: clamp(2rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.05rem; }
p { color: var(--muted); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 0.75rem;
  display: block;
}

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px;
}
.brand { font-family: var(--font-heading); font-size: 1.4rem; color: var(--fg); letter-spacing: 0.02em; }
.nav-desktop { display: none; align-items: center; gap: 2rem; }
.nav-desktop a { font-size: 0.9rem; font-weight: 500; color: var(--muted); transition: color 0.2s; }
.nav-desktop a:hover, .nav-desktop a.active { color: var(--accent); }
.nav-cta {
  background: var(--primary); color: var(--primary-fg) !important;
  padding: 0.55rem 1rem; border-radius: var(--radius); font-size: 0.85rem;
}
.nav-cta:hover { background: hsl(215, 30%, 22%); color: var(--primary-fg) !important; }

.mobile-toggle { background: none; border: none; cursor: pointer; padding: 0.5rem; color: var(--fg); }
.mobile-toggle svg { width: 22px; height: 22px; }
.nav-mobile { display: none; background: var(--bg); border-bottom: 1px solid var(--border); padding: 1rem 0; }
.nav-mobile.open { display: block; }
.nav-mobile a { display: block; padding: 0.75rem 1.5rem; color: var(--muted); font-weight: 500; }
.nav-mobile a.active, .nav-mobile a:hover { color: var(--accent); }

@media (min-width: 900px) {
  .nav-desktop { display: flex; }
  .mobile-toggle { display: none; }
  .nav-mobile { display: none !important; }
}

main { padding-top: 70px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex; align-items: center;
  overflow: hidden;
  color: var(--primary-fg);
}
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, hsla(215, 30%, 16%, 0.95), hsla(215, 30%, 16%, 0.8) 50%, hsla(215, 30%, 16%, 0.4));
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; padding-top: 5rem; padding-bottom: 5rem; }
.hero h1 { color: var(--primary-fg); max-width: 56rem; text-wrap: balance; }
.hero .lead { color: hsla(40, 25%, 96%, 0.85); font-size: 1.15rem; max-width: 38rem; margin-top: 1.5rem; }
.hero .eyebrow { margin-bottom: 1.25rem; }

.cta-row { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.25rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.5rem; border-radius: var(--radius);
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  transition: all 0.2s; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: hsl(32, 80%, 45%); }
.btn-ghost-light { border-color: hsla(40, 25%, 96%, 0.3); color: var(--primary-fg); }
.btn-ghost-light:hover { background: hsla(40, 25%, 96%, 0.1); }
.btn-ghost { border-color: var(--border); background: var(--bg); color: var(--fg); }
.btn-ghost:hover { background: var(--secondary); }

.hero-trust {
  margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: 0.5rem 2rem;
  color: hsla(40, 25%, 96%, 0.75); font-size: 0.875rem;
}
.hero-trust span { display: inline-flex; align-items: center; gap: 0.4rem; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }

/* ===== Sections ===== */
section { padding: 5rem 0; }
.section-bg-secondary { background: var(--secondary); }
.section-bg-primary { background: var(--primary); color: var(--primary-fg); }
.section-bg-primary p { color: hsla(40, 25%, 96%, 0.8); }

.section-head { max-width: 48rem; margin-bottom: 3.5rem; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { color: var(--fg); margin-bottom: 1rem; text-wrap: balance; }
.section-bg-primary .section-head h2 { color: var(--primary-fg); }

/* ===== Bridging ===== */
.bridging { text-align: center; padding: 4.5rem 0; }
.bridging .icon-circle {
  width: 56px; height: 56px; border-radius: 50%;
  background: hsla(32, 80%, 50%, 0.12);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; color: var(--accent);
}
.bridging-quote {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.8vw, 2.25rem);
  line-height: 1.3;
  max-width: 64rem; margin: 0 auto;
  color: var(--primary-fg);
  text-wrap: balance;
}
.bridging-quote .em { color: var(--accent); }
.bridging-sub { margin-top: 1.5rem; max-width: 36rem; margin-left: auto; margin-right: auto; }

/* ===== Cards Grid ===== */
.cards-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .cards-grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.75rem;
  transition: border-color 0.2s;
}
.card:hover { border-color: hsla(32, 80%, 50%, 0.4); }
.card .icon { width: 28px; height: 28px; color: var(--accent); margin-bottom: 1rem; }
.card h3 { font-size: 1.125rem; color: var(--fg); margin-bottom: 0.5rem; }
.card p { font-size: 0.9rem; }

/* ===== Pillars ===== */
.pillars { display: flex; flex-direction: column; gap: 3rem; }
.pillar {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2.5rem;
  scroll-margin-top: 90px;
}
@media (min-width: 768px) { .pillar { padding: 3rem; } }
.pillar-grid { display: grid; gap: 2.5rem; }
@media (min-width: 1024px) { .pillar-grid { grid-template-columns: 5fr 7fr; } }
.pillar-intro h3 { color: var(--fg); margin: 0.5rem 0 1.25rem; text-wrap: balance; }
.pillar-intro p { margin-bottom: 1.5rem; }
.module-grid { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .module-grid { grid-template-columns: repeat(2, 1fr); } }
.module {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.25rem;
}
.module h4 { color: var(--fg); margin-bottom: 0.4rem; line-height: 1.3; }
.module p { font-size: 0.875rem; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.4rem;
  color: var(--accent); font-weight: 600; font-size: 0.95rem;
  transition: gap 0.2s;
}
.link-arrow:hover { gap: 0.7rem; }

/* ===== Why Viatron ===== */
.split { display: grid; gap: 3rem; align-items: center; }
@media (min-width: 768px) { .split { grid-template-columns: 1fr 1fr; } }
.split img { border-radius: 0.75rem; box-shadow: 0 25px 50px -12px hsla(215, 30%, 16%, 0.25); }
.check-list { margin-top: 2rem; display: flex; flex-direction: column; gap: 0.75rem; }
.check-list li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  font-weight: 500; color: var(--fg); font-size: 0.9rem;
}
.check-list .check { color: var(--accent); flex-shrink: 0; margin-top: 2px; }

/* ===== Region ===== */
.region {
  position: relative; overflow: hidden;
  color: var(--primary-fg);
}
.region-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.region-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, hsla(215, 30%, 16%, 0.95), hsla(215, 30%, 16%, 0.85));
  z-index: 1;
}
.region .container { position: relative; z-index: 2; }
.region h2 { color: var(--primary-fg); }
.region p { color: hsla(40, 25%, 96%, 0.8); }
.city-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; }
.city-tag {
  border: 1px solid hsla(40, 25%, 96%, 0.25);
  padding: 0.4rem 1rem; border-radius: 999px;
  font-size: 0.875rem; color: hsla(40, 25%, 96%, 0.85);
}

/* ===== Contact CTA ===== */
.contact-cta { text-align: center; }
.contact-cta .container > div { max-width: 48rem; margin: 0 auto; }
.contact-cta .cta-row { justify-content: center; margin-top: 2.5rem; }

/* ===== Footer ===== */
.site-footer {
  background: var(--primary); color: var(--primary-fg);
  padding: 3.5rem 0 1.5rem;
}
.footer-grid {
  display: grid; gap: 2.5rem;
  grid-template-columns: 1fr;
  margin-bottom: 2.5rem;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1.5fr; } }
.footer-grid h4 { color: var(--accent); font-family: var(--font-body); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 1rem; }
.footer-grid p, .footer-grid a { color: hsla(40, 25%, 96%, 0.75); font-size: 0.9rem; line-height: 1.8; }
.footer-grid a:hover { color: var(--accent); }
.footer-grid ul li { margin-bottom: 0.4rem; }
.footer-bottom {
  border-top: 1px solid hsla(40, 25%, 96%, 0.15);
  padding-top: 1.5rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  font-size: 0.825rem; color: hsla(40, 25%, 96%, 0.6);
}
.footer-bottom a { color: hsla(40, 25%, 96%, 0.6); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Page Hero (subpages) ===== */
.page-hero {
  background: var(--primary); color: var(--primary-fg);
  padding: 7rem 0 4rem;
}
.page-hero h1 { color: var(--primary-fg); max-width: 50rem; }
.page-hero p { color: hsla(40, 25%, 96%, 0.8); margin-top: 1.25rem; max-width: 40rem; font-size: 1.1rem; }

/* ===== Prose (Impressum etc.) ===== */
.prose { max-width: 48rem; margin: 0 auto; }
.prose h2 { margin-top: 2.5rem; margin-bottom: 1rem; color: var(--fg); }
.prose h3 { margin-top: 1.75rem; margin-bottom: 0.75rem; }
.prose p { margin-bottom: 1rem; }
.prose a { color: var(--accent); }
.prose a:hover { text-decoration: underline; }

/* ===== Form ===== */
.form-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .form-grid { grid-template-columns: 2fr 3fr; } }
.contact-info { background: var(--card); border-radius: 0.75rem; padding: 2rem; border: 1px solid var(--border); }
.contact-info h3 { font-size: 1.1rem; margin-bottom: 1.25rem; color: var(--fg); }
.contact-info ul li { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1rem; color: var(--fg); font-size: 0.95rem; }
.contact-info svg { color: var(--accent); flex-shrink: 0; margin-top: 3px; }
.contact-info a:hover { color: var(--accent); }
form .field { margin-bottom: 1.25rem; }
form label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--fg); }
form input, form textarea {
  width: 100%; padding: 0.75rem 1rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 0.95rem;
  background: var(--bg); color: var(--fg);
}
form input:focus, form textarea:focus { outline: none; border-color: var(--accent); }
form textarea { resize: vertical; min-height: 140px; }