/* ============================================================
   NORDFLUT – Corporate Website
   Gebäudereinigung & Hausmeisterservice an der Nordsee
   ============================================================ */

:root {
  --color-primary:    #4EAFDF;
  --color-heading:    #424242;
  --color-secondary:  #5C6473;
  --color-bg-light:   #E8F4FB;
  --color-border:     #D6E5EF;
  --color-text:       #2A2F3A;
  --color-white:      #FFFFFF;
  --color-dark:       #1A1F2A;

  --font-base: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius: 8px;
  --shadow: 0 2px 16px rgba(78, 175, 223, 0.10);
  --transition: 0.25s ease;
  --max-width: 1160px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: #2d8dbf; }
ul { list-style: none; }

/* ── Utility ────────────────────────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 0.4rem;
}
.section-subtitle {
  color: var(--color-secondary);
  font-size: 1.05rem;
  margin-bottom: 3rem;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  border: none;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover { background: #2d8dbf; color: var(--color-white); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); }

/* ── Header / Navigation ────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo img {
  height: 56px;
  width: auto;
}
.nav-logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: -0.5px;
}
.nav-logo-text span { color: var(--color-primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  color: var(--color-heading);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a:hover { color: var(--color-primary); }
.nav-cta { margin-left: 1rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0d2d45 0%, #1a5276 50%, #1e6b8a 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/hero-nordsee-leuchtturm.jpg');
  background-size: cover;
  background-position: center bottom;
  opacity: 0.40;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(78, 175, 223, 0.2);
  border: 1px solid rgba(78, 175, 223, 0.4);
  color: #9dd8f5;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 1.2rem;
}
.hero h1 span { color: var(--color-primary); }
.hero p {
  color: #b8d4e8;
  font-size: 1.15rem;
  margin-bottom: 2.2rem;
  max-width: 520px;
}
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  flex-wrap: wrap;
}
.stat-item { color: var(--color-white); }
.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.stat-label { font-size: 0.85rem; color: #9db8cc; margin-top: 2px; }

/* ── Leistungen ─────────────────────────────────────────────── */
.leistungen { padding: 96px 0; background: var(--color-white); }
.leistungen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.leistung-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.leistung-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--color-primary);
}
.leistung-icon {
  width: 52px; height: 52px;
  background: var(--color-bg-light);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.6rem;
}
.leistung-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 0.5rem;
}
.leistung-card p {
  color: var(--color-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ── Über uns ───────────────────────────────────────────────── */
.ueber-uns {
  padding: 96px 0;
  background: var(--color-bg-light);
}
.ueber-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.ueber-image {
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #1a5276, #4EAFDF);
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem;
  box-shadow: 0 8px 32px rgba(78,175,223,0.2);
}
.ueber-image img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.ueber-content .section-title { margin-bottom: 1rem; }
.ueber-content p {
  color: var(--color-secondary);
  margin-bottom: 1.2rem;
  font-size: 1rem;
}
.ueber-values {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 1.8rem 0;
}
.value-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.value-icon {
  width: 28px; height: 28px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.value-item h4 { font-size: 0.95rem; color: var(--color-heading); font-weight: 600; }
.value-item p { color: var(--color-secondary); font-size: 0.88rem; margin: 0; }

/* ── Referenzen ─────────────────────────────────────────────── */
.referenzen { padding: 96px 0; background: var(--color-white); }
.referenzen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.referenz-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
}
.referenz-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1rem;
}
.referenz-logo {
  width: 48px; height: 48px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
}
.referenz-name { font-weight: 700; color: var(--color-heading); font-size: 0.95rem; }
.referenz-type { color: var(--color-secondary); font-size: 0.82rem; }
.referenz-quote {
  color: var(--color-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
  font-style: italic;
}
.stars { color: var(--color-primary); margin-bottom: 0.5rem; font-size: 0.9rem; }

/* ── Kontakt ────────────────────────────────────────────────── */
.kontakt { padding: 96px 0; background: var(--color-bg-light); }
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
.kontakt-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 1rem;
}
.kontakt-info p { color: var(--color-secondary); margin-bottom: 2rem; font-size: 0.95rem; }
.kontakt-items { display: flex; flex-direction: column; gap: 1.2rem; }
.kontakt-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.kontakt-item-icon {
  width: 40px; height: 40px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}
.kontakt-item-text strong { display: block; color: var(--color-heading); font-size: 0.88rem; margin-bottom: 2px; }
.kontakt-item-text span { color: var(--color-secondary); font-size: 0.92rem; }
.form-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 1.2rem; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-secondary);
  letter-spacing: 0.3px;
}
.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-base);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(78, 175, 223, 0.15);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-success {
  display: none;
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 1rem;
  font-size: 0.92rem;
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  background: var(--color-dark);
  color: #8899aa;
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 1rem; max-width: 280px; }
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 0.5rem;
}
.footer-logo-img {
  height: 72px;
  width: auto;
  background: var(--color-white);
  border-radius: 8px;
  padding: 6px 10px;
}
.footer-logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-white);
}
.footer-logo-text span { color: var(--color-primary); }
.footer-col h4 {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul li a {
  color: #8899aa;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid #2a3545;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}
.footer-bottom a { color: #8899aa; }
.footer-bottom a:hover { color: var(--color-primary); }

/* ── Trust-Bar ──────────────────────────────────────────────── */
.trust-bar {
  background: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 1.4rem 0;
}
.trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.trust-seal {
  height: 44px;
  width: auto;
  flex-shrink: 0;
}
.trust-icon {
  width: 40px; height: 40px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.trust-badge-text strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-heading);
}
.trust-badge-text span {
  font-size: 0.8rem;
  color: var(--color-secondary);
}

/* ── Innung-Badge (Über-uns) ────────────────────────────────── */
.innung-badge {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin: 1.5rem 0 1.8rem;
}
.innung-badge img {
  height: 72px;
  width: auto;
  flex-shrink: 0;
}
.innung-badge p {
  color: var(--color-secondary);
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0;
}

/* ── FAQ ────────────────────────────────────────────────────── */
.faq { padding: 96px 0; background: var(--color-white); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.active { border-color: var(--color-primary); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 1.1rem 1.4rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-base);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  transition: background var(--transition);
}
.faq-question:hover { background: var(--color-bg-light); }
.faq-chevron {
  font-size: 0.7rem;
  color: var(--color-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer-inner {
  padding: 0 1.4rem 1.2rem;
  color: var(--color-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
}

/* ── Galerie ────────────────────────────────────────────────── */
.galerie { padding: 0 0 96px; background: var(--color-white); }
.galerie-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.galerie-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  aspect-ratio: 3/4;
}
.galerie-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.4s ease;
}
.galerie-item:hover img { transform: scale(1.04); }
.galerie-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.65));
  color: var(--color-white);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 2rem 0.9rem 0.75rem;
  letter-spacing: 0.3px;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .ueber-grid,
  .kontakt-grid { grid-template-columns: 1fr; }
  .ueber-image { max-width: 480px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .nav-links,
  .nav-cta { display: none; }
  .hamburger { display: flex; }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem 24px;
    gap: 1.2rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    z-index: 99;
  }
  .nav-cta.mobile-open {
    display: block;
    position: fixed;
    top: calc(72px + 240px); left: 0; right: 0;
    background: var(--color-white);
    padding: 0 24px 1.5rem;
    z-index: 99;
  }

  .hero-stats { gap: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .galerie-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-badges { gap: 1.4rem; justify-content: flex-start; }
  .trust-badge { white-space: normal; }
}

@media (max-width: 480px) {
  .hero { min-height: 100svh; }
  .hero-buttons { flex-direction: column; }
  .btn { text-align: center; }
}