:root {
  --black: #000000;
  --white: #ffffff;
  --gray-50: #f5f5f7;
  --gray-100: #e8e8ed;
  --gray-200: #d2d2d7;
  --gray-400: #86868b;
  --gray-600: #6e6e73;
  --gray-800: #424245;
  --gray-900: #1d1d1f;
  --accent: #0071e3;
  --accent-dark: #0077ed;
  --accent-light: #2997ff;
  --font-primary: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-primary);
  background: var(--white);
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ===== LAYOUT ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.section { padding: 100px 0; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 48px;
  height: 52px;
  display: flex; align-items: center;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255,255,255,0.72);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.85);
  box-shadow: 0 1px 0 rgba(0,0,0,0.1);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; width: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 18px; letter-spacing: -0.3px;
}
.logo-a { color: var(--gray-900); }
.logo-5 { color: var(--accent); }
.logo-text { font-size: 14px; font-weight: 500; color: var(--gray-600); margin-left: 2px; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-link {
  padding: 6px 14px; border-radius: 20px;
  font-size: 13px; font-weight: 500; color: var(--gray-800);
  transition: var(--transition);
}
.nav-link:hover { color: var(--gray-900); background: rgba(0,0,0,0.05); }
.nav-cta {
  padding: 7px 16px; border-radius: 20px;
  font-size: 13px; font-weight: 600;
  background: var(--gray-900); color: var(--white);
  transition: var(--transition);
}
.nav-cta:hover { background: var(--accent); transform: scale(1.02); }
.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--gray-900); border-radius: 2px; transition: var(--transition); }

/* Mobile Menu */
.mobile-menu {
  display: none; position: fixed; top: 52px; left: 0; right: 0; bottom: 0; z-index: 999;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(20px);
  padding: 32px 48px; flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 0; }
.mobile-link { display: block; padding: 18px 0; font-size: 22px; font-weight: 600; color: var(--gray-900); border-bottom: 1px solid var(--gray-100); transition: var(--transition); }
.mobile-link:hover { color: var(--accent); padding-left: 8px; }
.mobile-cta { margin-top: 24px; border: none !important; color: var(--accent) !important; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex; align-items: center;
  padding: 14px 28px; border-radius: 980px;
  background: var(--gray-900); color: var(--white);
  font-size: 15px; font-weight: 600;
  transition: var(--transition);
  cursor: pointer; border: none;
}
.btn-primary:hover { background: var(--accent); transform: scale(1.02); box-shadow: 0 4px 20px rgba(0,113,227,0.3); }
.btn-secondary {
  display: inline-flex; align-items: center;
  padding: 14px 28px; border-radius: 980px;
  background: transparent; color: var(--gray-900);
  font-size: 15px; font-weight: 600;
  border: 1.5px solid rgba(0,0,0,0.15);
  transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--gray-900); background: rgba(0,0,0,0.03); }
.btn-full { width: 100%; justify-content: center; }

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header.light .section-title,
.section-header.light .section-subtitle { color: var(--white); }
.section-header.light .section-tag { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.8); }
.section-tag {
  display: inline-block;
  padding: 5px 14px; border-radius: 20px;
  background: rgba(0,113,227,0.08); color: var(--accent);
  font-size: 12px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; letter-spacing: -0.03em;
  color: var(--gray-900); line-height: 1.1;
  margin-bottom: 16px;
}
.section-subtitle { font-size: 18px; color: var(--gray-600); max-width: 560px; margin: 0 auto; font-weight: 400; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, #f5f5f7 0%, #ffffff 50%, #f0f4ff 100%);
  padding-top: 52px;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(0,113,227,0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(0,113,227,0.04) 0%, transparent 50%);
  pointer-events: none;
}
.hero-content {
  flex: 0 0 55%; padding: 80px 0 80px 0;
  max-width: 600px; position: relative; z-index: 2;
}
.hero-badge {
  display: inline-block;
  padding: 5px 14px; border-radius: 20px;
  background: rgba(0,113,227,0.08); color: var(--accent);
  font-size: 12px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase;
  margin-bottom: 28px;
}
.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800; letter-spacing: -0.04em;
  line-height: 1.0; color: var(--gray-900);
  margin-bottom: 24px;
}
.hero-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, #5ac8fa 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle { font-size: 18px; color: var(--gray-600); line-height: 1.6; margin-bottom: 36px; max-width: 480px; font-weight: 400; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: flex; align-items: center; gap: 0; }
.stat { text-align: center; padding: 0 28px; }
.stat:first-child { padding-left: 0; }
.stat-number { display: block; font-size: 2.2rem; font-weight: 800; letter-spacing: -0.04em; color: var(--gray-900); }
.stat-suffix { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.stat-label { display: block; font-size: 12px; font-weight: 500; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 2px; }
.stat-divider { width: 1px; height: 40px; background: var(--gray-200); flex-shrink: 0; }

.hero-visual {
  flex: 0 0 45%; position: absolute; right: -2%; top: 0; bottom: 0;
  display: flex; align-items: center;
}
.hero-image-wrap {
  position: relative; width: 100%; height: 75vh;
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
  overflow: hidden;
}
.hero-img-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, rgba(245,245,247,0.6) 0%, transparent 40%);
}
.hero-img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.hero-scroll-hint {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--gray-400); font-size: 12px; font-weight: 500; letter-spacing: 0.5px;
  animation: fadeInUp 1s 1.5s both;
  z-index: 5;
}
.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--gray-300); border-bottom: 2px solid var(--gray-300);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}
@keyframes bounce { 0%,100%{transform:rotate(45deg) translateY(0)} 50%{transform:rotate(45deg) translateY(4px)} }
@keyframes fadeInUp { from{opacity:0;transform:translateX(-50%) translateY(20px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }

/* ===== LEISTUNGEN ===== */
.leistungen { background: var(--gray-50); }
.leistungen-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.leistung-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 36px; border: 1px solid var(--gray-100);
  transition: var(--transition); cursor: default;
  position: relative; overflow: hidden;
}
.leistung-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), #5ac8fa);
  transform: scaleX(0); transform-origin: left;
  transition: var(--transition);
}
.leistung-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.leistung-card:hover::before { transform: scaleX(1); }
.leistung-card.featured { background: var(--gray-900); color: var(--white); border-color: transparent; }
.leistung-card.featured h3, .leistung-card.featured p, .leistung-card.featured .card-list li { color: rgba(255,255,255,0.9); }
.leistung-card.featured .card-icon { background: rgba(255,255,255,0.1); color: var(--white); }
.leistung-card.featured .card-link { color: var(--accent-light); }
.leistung-card.featured::before { background: linear-gradient(90deg, var(--accent-light), #5ac8fa); }
.card-badge {
  display: inline-block; padding: 3px 10px; border-radius: 12px;
  background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.9);
  font-size: 11px; font-weight: 600; letter-spacing: 0.3px;
  margin-bottom: 12px;
}
.card-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--gray-50); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.card-icon svg { width: 24px; height: 24px; }
.leistung-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.02em; }
.leistung-card p { font-size: 14px; color: var(--gray-600); line-height: 1.6; margin-bottom: 20px; }
.card-list { list-style: none; display: flex; flex-direction: column; gap: 6px; margin-bottom: 24px; }
.card-list li { font-size: 13px; color: var(--gray-600); padding-left: 16px; position: relative; }
.card-list li::before { content: '·'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.card-link { font-size: 14px; font-weight: 600; color: var(--accent); transition: var(--transition); }
.card-link:hover { gap: 4px; opacity: 0.8; }

/* ===== PROJEKTE ===== */
.projekte-section { background: var(--gray-900); }
.projekte-grid { display: grid; grid-template-columns: 1.5fr 1fr; grid-template-rows: auto auto; gap: 16px; }
.projekt-card { border-radius: var(--radius-lg); overflow: hidden; position: relative; cursor: pointer; }
.projekt-card.large { grid-row: 1 / 3; }
.projekt-img-wrap { position: relative; height: 100%; min-height: 240px; }
.projekt-card.large .projekt-img-wrap { min-height: 540px; }
.projekt-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.projekt-card:hover .projekt-img { transform: scale(1.04); }
.projekt-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 55%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 28px; color: var(--white); transition: var(--transition);
}
.projekt-tag { font-size: 11px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: rgba(255,255,255,0.7); margin-bottom: 8px; }
.projekt-overlay h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.02em; }
.projekt-overlay p { font-size: 14px; color: rgba(255,255,255,0.75); }

/* ===== WARUM ===== */
.warum { background: var(--white); }
.warum-container { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.warum-text .section-tag { display: inline-block; margin-bottom: 16px; }
.warum-text .section-title { text-align: left; }
.warum-lead { font-size: 18px; font-weight: 500; color: var(--gray-800); line-height: 1.6; margin-bottom: 20px; }
.warum-body { font-size: 16px; color: var(--gray-600); line-height: 1.7; margin-bottom: 32px; }
.warum-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 36px; }
.warum-feature { display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 500; color: var(--gray-800); }
.feature-check {
  width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  background: rgba(0,113,227,0.1); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
}
.warum-visual { position: relative; }
.warum-img-stack { position: relative; margin-bottom: 24px; }
.warum-img-card { border-radius: var(--radius-lg); overflow: hidden; }
.card-front img { width: 100%; height: 380px; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.card-back {
  position: absolute; top: 20px; left: -20px; right: 20px; bottom: -20px; z-index: -1;
  background: linear-gradient(135deg, var(--accent), #5ac8fa);
  border-radius: var(--radius-lg); opacity: 0.15;
}
.warum-kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.warum-kpi {
  background: var(--gray-50); border-radius: var(--radius-md);
  padding: 20px; text-align: center; border: 1px solid var(--gray-100);
}
.kpi-num { display: block; font-size: 1.8rem; font-weight: 800; letter-spacing: -0.04em; color: var(--gray-900); }
.kpi-label { font-size: 12px; font-weight: 500; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.5px; }

/* ===== STANDORTE ===== */
.standorte { background: var(--gray-50); }
.standorte-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.standort-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 36px; border: 1px solid var(--gray-100);
  transition: var(--transition);
}
.standort-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.standort-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(0,113,227,0.08); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.standort-icon svg { width: 22px; height: 22px; }
.standort-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 4px; letter-spacing: -0.02em; }
.standort-subtitle { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--accent); margin-bottom: 14px; }
.standort-desc { font-size: 14px; color: var(--gray-600); line-height: 1.6; margin-bottom: 20px; }
.standort-link { font-size: 14px; font-weight: 600; color: var(--accent); transition: var(--transition); }
.standort-link:hover { opacity: 0.7; }

/* ===== KONTAKT ===== */
.kontakt { background: var(--white); }
.kontakt-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.kontakt-text .section-tag { display: inline-block; margin-bottom: 16px; }
.kontakt-text .section-title { text-align: left; margin-bottom: 20px; }
.kontakt-desc { font-size: 16px; color: var(--gray-600); line-height: 1.7; margin-bottom: 36px; }
.kontakt-info { display: flex; flex-direction: column; gap: 20px; }
.kontakt-item { display: flex; flex-direction: column; gap: 4px; }
.kontakt-item strong { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--gray-400); }
.kontakt-item a { font-size: 16px; font-weight: 500; color: var(--accent); transition: var(--transition); }
.kontakt-item a:hover { opacity: 0.7; }

/* Form */
.kontakt-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--gray-800); }
.form-group input, .form-group textarea, .form-group select {
  padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--gray-100); background: var(--gray-50);
  font-family: var(--font-primary); font-size: 15px; color: var(--gray-900);
  transition: var(--transition); width: 100%; resize: none;
  -webkit-appearance: none; appearance: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--accent); background: var(--white);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.12);
}
.form-group textarea { min-height: 130px; }
.form-disclaimer { font-size: 12px; color: var(--gray-400); text-align: center; margin-top: 4px; }

/* ===== FOOTER ===== */
.footer { background: var(--gray-900); color: var(--white); padding: 64px 0 0; }
.footer-container { display: grid; grid-template-columns: 1fr 2fr; gap: 64px; margin-bottom: 48px; }
.footer-brand .logo-a { color: var(--white); font-size: 22px; font-weight: 800; }
.footer-brand .logo-5 { color: var(--accent-light); font-size: 22px; font-weight: 800; }
.footer-brand .logo-text { color: rgba(255,255,255,0.5); font-size: 14px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.4); margin-top: 12px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col strong { font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.9); margin-bottom: 4px; }
.footer-col a { font-size: 13px; color: rgba(255,255,255,0.4); transition: var(--transition); }
.footer-col a:hover { color: rgba(255,255,255,0.9); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.35); }
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { font-size: 13px; color: rgba(255,255,255,0.35); transition: var(--transition); }
.footer-legal a:hover { color: rgba(255,255,255,0.7); }

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .hero-content { flex: 0 0 100%; max-width: 100%; padding: 80px 0 60px; }
  .hero { padding: 52px 24px 0; min-height: auto; }
  .hero-content { padding: 60px 0; }
  .leistungen-grid { grid-template-columns: repeat(2, 1fr); }
  .warum-container { grid-template-columns: 1fr; }
  .warum-visual { display: none; }
  .kontakt-wrap { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .navbar { padding: 0 24px; }
  .hero-inner { padding: 0 24px; }
  .section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .leistungen-grid { grid-template-columns: 1fr; }
  .projekte-grid { grid-template-columns: 1fr; }
  .projekt-card.large { grid-row: auto; }
  .standorte-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 0; flex-wrap: wrap; }
  .stat { padding: 12px 16px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-bottom-inner { flex-direction: column; gap: 12px; text-align: center; }
  .hero-title { font-size: 2.6rem; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .navbar { padding: 0 16px; }
  .hero-inner { padding: 0 16px; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .footer-links { grid-template-columns: 1fr; }
}