/* HighTechZentrum-Mainz — Objekt-Präsentationsseite
   Design: minimalistisch, viel Weißraum, ruhige Bild/Text-Dramaturgie */

:root {
  --navy: #345686;
  --navy-dark: #253f61;
  --navy-darker: #1a2c46;
  --ink: #1c2a3a;
  --gray-700: #4d5b6b;
  --gray-500: #7a8794;
  --gray-200: #dde3ea;
  --bg: #ffffff;
  --bg-alt: #eef2f7;
  --bg-alt-2: #e4eaf1;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --max-width: 1180px;
  --max-width-narrow: 760px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg-alt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Header / Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
  /* backdrop-filter lives on ::before, not here — applying it directly on
     .site-header would make it a new containing block, breaking the
     position:fixed mobile nav overlay nested inside it. */
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(52, 86, 134, 0.9);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  transition: background 0.3s var(--ease);
}

.site-header.scrolled {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.site-header.scrolled::before {
  background: rgba(52, 86, 134, 0.98);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}

.site-header .logo {
  display: flex;
  align-items: center;
}

.site-header .logo img {
  height: 56px;
  width: auto;
}

.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 36px;
  margin: 0;
  padding: 0;
}

.site-nav li { display: flex; align-items: center; }

.site-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  color: #c3d2e2;
  transition: color 0.2s;
}

.site-nav a:hover { color: #ffffff; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--navy-darker) !important;
  font-size: 0.85rem;
  text-decoration: none;
  transition: background 0.2s;
}

.lang-switch {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
}
.lang-switch:hover { border-color: #ffffff; }

.nav-cta:hover { background: #d7e1ec; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 20px;
  position: relative;
  padding: 0;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 28px;
  height: 2px;
  background: #ffffff;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span { top: 9px; }
.nav-toggle span::before { top: -9px; }
.nav-toggle span::after { top: 9px; }

.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translateY(9px) rotate(45deg); }
.nav-toggle.open span::after { transform: translateY(-9px) rotate(-45deg); }

/* Hero — full-bleed building photo */
.hero {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: flex-end;
  text-align: center;
  overflow: hidden;
  color: #ffffff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(20, 35, 55, 0.05) 0%, rgba(20, 35, 55, 0.28) 42%, rgba(20, 35, 55, 0.88) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 220px 0 88px;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #cfdcea;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.06;
  margin: 0 auto 24px;
  max-width: 20ch;
  color: #ffffff;
}

.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: #e4eaf1;
  max-width: 46ch;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 30px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--navy);
  color: #fff;
}
.btn-primary:hover { background: var(--navy-dark); transform: translateY(-1px); }

.btn-ghost {
  color: var(--navy);
  padding: 14px 8px;
}
.btn-ghost:hover { gap: 10px; }
.btn-ghost .arrow { transition: transform 0.25s var(--ease); }
.btn-ghost:hover .arrow { transform: translateX(3px); }

.hero .btn-ghost { color: #ffffff; }

/* Section shell */
section { padding: 120px 0; }
.section-alt { background: var(--bg-alt-2); }

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 14px;
}

.section-head {
  max-width: var(--max-width-narrow);
  margin-bottom: 64px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0 0 18px;
}

.section-head p {
  font-size: 1.1rem;
  color: var(--gray-700);
  margin: 0;
}

/* Specs row: image-free fact grid */
.specs-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 0;
}

.specs-row > div {
  background: #ffffff;
  padding: 36px 28px;
  text-align: center;
}

.specs-row dt {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.specs-row dd {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
}

/* Amenities */
.amenity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.amenity-card {
  padding: 4px 4px 4px 20px;
  border-left: 2px solid var(--navy);
}

.amenity-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--ink);
}

.amenity-card p {
  font-size: 0.95rem;
  color: var(--gray-700);
  margin: 0;
}

/* Tenants */
.tenants-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.tenants-grid-secondary { margin-top: 24px; }

/* Tenant spotlight */
.tenant-spotlight {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--navy);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 24px;
  box-shadow: 0 20px 50px -30px rgba(26, 44, 70, 0.25);
}

.tenant-spotlight-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 72px;
}

.tenant-spotlight-logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  object-fit: contain;
}

.tenant-spotlight-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--navy);
  background: var(--bg-alt-2);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.tenant-spotlight-body h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.tenant-spotlight-body p {
  color: var(--gray-700);
  font-size: 1rem;
  margin: 0 0 18px;
  max-width: 62ch;
}

.tenant-spotlight-body em {
  color: var(--gray-500);
  font-style: normal;
  font-size: 0.85rem;
}

@media (max-width: 700px) {
  .tenant-spotlight { grid-template-columns: 1fr; text-align: center; padding: 32px; }
  .tenant-spotlight-logo { justify-content: center; }
}

.tenant-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.tenant-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(26, 44, 70, 0.22);
  border-color: transparent;
}

.tenant-logo {
  height: 56px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tenant-logo img {
  max-height: 100%;
  max-width: 170px;
  width: auto;
  object-fit: contain;
}

.tenant-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 10px;
}

.tenant-card p {
  color: var(--gray-500);
  font-size: 0.96rem;
  margin: 0 0 20px;
}

.tenant-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--navy);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.tenant-link .arrow { transition: transform 0.25s var(--ease); }
.tenant-link:hover .arrow { transform: translateX(3px); }

/* CTA band (Freie Flächen) */
.cta-band {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 88px 56px;
  text-align: center;
}

.cta-band .eyebrow { color: #b9c8dc; }

.cta-band h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  line-height: 1.15;
}

.cta-band p {
  font-size: 1.1rem;
  color: #d7e1ee;
  max-width: 52ch;
  margin: 0 auto 40px;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--navy-dark);
}
.cta-band .btn-primary:hover { background: #eef2f7; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-details {
  display: grid;
  gap: 28px;
  margin: 0;
}

.contact-details dt {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.contact-details dd {
  margin: 0;
  font-size: 1.08rem;
}

.contact-details a {
  color: var(--navy);
  text-decoration: none;
}
.contact-details a:hover { text-decoration: underline; }

.contact-form {
  display: grid;
  gap: 18px;
  background: #ffffff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 32px;
}

.form-row {
  display: grid;
  gap: 6px;
}

.form-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

.form-row input,
.form-row textarea {
  font-family: var(--font);
  font-size: 1rem;
  padding: 11px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  color: var(--ink);
  resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: 2px solid var(--navy);
  outline-offset: 1px;
  background: #ffffff;
}

.contact-form .btn { justify-self: start; }

/* Honeypot: hidden from real users, still reachable by simple bots */
.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.form-banner {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
}

.form-banner-success {
  background: #e6f4ea;
  color: #1e5b32;
  border: 1px solid #b9dfc4;
}

.form-banner-error {
  background: #fdecec;
  color: #7a2020;
  border: 1px solid #f3c2c2;
}

.form-banner-error a { color: inherit; text-decoration: underline; }

/* Footer */
.site-footer {
  background: var(--bg-alt);
  padding: 64px 0 40px;
  font-size: 0.88rem;
  color: var(--gray-500);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 28px;
}

.footer-brand img { height: 88px; margin-bottom: 20px; }
.footer-brand p { margin: 0; max-width: 32ch; }

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin: 0 0 14px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-col a {
  text-decoration: none;
  color: var(--ink);
}
.footer-col a:hover { color: var(--navy); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Legal pages */
.legal-page main {
  padding: 160px 0 96px;
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.legal-page h1 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}

.legal-page .legal-updated {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 40px;
}

.legal-page h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 40px;
}

.legal-page h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 26px;
  margin-bottom: 4px;
  color: var(--ink);
}

.legal-page p, .legal-page li { color: var(--gray-700); }
.legal-page ul { color: var(--gray-700); padding-left: 22px; }
.legal-page li { margin-bottom: 6px; }

.placeholder-note {
  background: #fff6e0;
  border: 1px solid #f0d98c;
  color: #6b5714;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  margin-bottom: 32px;
}

/* Mobile nav overlay */
@media (max-width: 760px) {
  .nav-toggle { display: block; }

  .site-nav {
    position: fixed;
    inset: 0;
    top: 92px;
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease);
  }

  .site-nav.open { opacity: 1; pointer-events: auto; }

  .site-nav ul {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }

  .site-nav a { font-size: 1.4rem; color: var(--ink); }
  .site-nav a.lang-switch { font-size: 1rem; border-color: var(--gray-200); }
  .nav-cta { font-size: 1.1rem; padding: 12px 28px; }

  .hero { padding-top: 136px; }
  section { padding: 80px 0; }
  .cta-band { padding: 56px 28px; }
  .footer-top { flex-direction: column; }
  .footer-links { gap: 32px; }
}