*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; max-width: 100%; }
  html, body { overflow-x: hidden; width: 100%; position: relative; }

  :root {
    --black: #0f2a4a;
    --white: #f0f6ff;
    --blue: #4a9edd;
    --blue-dark: #2d7ab8;
    --gray: #6b7a8d;
    --gray-light: #d0e3f5;
    --gray-mid: #8ab4d4;
  }

  html { scroll-behavior: smooth; overflow-x: hidden; }

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--white);
    color: var(--black);
    overflow-x: hidden;
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
  }

  /* NAV */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 4rem;
    background: var(--black);
    border-bottom: 2px solid var(--blue);
  }

  .nav-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    letter-spacing: 0.05em;
    color: var(--white);
    text-decoration: none;
  }

  .nav-logo span { color: var(--blue); }

  nav ul {
    display: flex;
    gap: 2.5rem;
    list-style: none;
  }

  nav ul a {
    color: var(--gray-mid);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.2s;
  }

  nav ul a:hover { color: var(--white); }

  .nav-cta {
    background: var(--blue);
    color: var(--white) !important;
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    transition: background 0.2s !important;
  }

  .nav-cta:hover { background: var(--blue-dark) !important; color: var(--white) !important; }

  /* HERO */
  .hero {
    min-height: 100vh;
    background: var(--black);
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding-top: 72px;
    position: relative;
    overflow: hidden;
    max-width: 100%;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 50%;
    height: 100%;
    background: repeating-linear-gradient(
      45deg,
      transparent,
      transparent 40px,
      rgba(74,158,221,0.04) 40px,
      rgba(74,158,221,0.04) 41px
    );
  }

  .hero-left {
    padding: 6rem 2rem 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 1;
  }

  .hero-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--blue);
    border: 1px solid var(--blue);
    padding: 0.3rem 0.8rem;
    margin-bottom: 2rem;
    width: fit-content;
  }

  .hero h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.8rem, 7vw, 6rem);
    line-height: 0.95;
    letter-spacing: 0.02em;
    color: var(--white);
    margin-bottom: 2rem;
  }

  .hero h1 em {
    font-style: normal;
    color: var(--blue);
    display: block;
  }

  .hero-sub {
    font-size: 1.05rem;
    color: var(--gray-mid);
    max-width: 420px;
    margin-bottom: 3rem;
    line-height: 1.7;
    font-weight: 300;
  }

  .hero-btns {
    display: flex;
    gap: 0.75rem;
    flex-wrap: nowrap;
    align-items: center;
  }

  .btn-primary {
    background: var(--blue);
    color: var(--white);
    padding: 0.9rem 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.2s, transform 0.15s;
    display: inline-block;
  }

  .btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }

  .btn-secondary {
    border: 1px solid var(--gray);
    color: var(--gray-mid);
    padding: 0.9rem 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 8px;
    transition: border-color 0.2s, color 0.2s;
    display: inline-block;
  }

  .btn-secondary:hover { border-color: var(--white); color: var(--white); }

  .hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  .stat-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.2rem;
    color: var(--white);
    letter-spacing: 0.05em;
    line-height: 1;
  }

  .stat-label {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.2rem;
  }

  .hero-right {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 4rem 2rem;
  }

  .hero-map {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    position: relative;
  }

  .map-circle {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    border: 1px solid rgba(74,158,221,0.3);
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse-ring 3s ease-in-out infinite;
  }

  .map-circle:nth-child(2) {
    width: 220px; height: 220px;
    border-color: rgba(74,158,221,0.5);
    animation-delay: 0.5s;
  }

  .map-dot {
    width: 12px; height: 12px;
    background: var(--blue);
    border-radius: 50%;
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 0 4px rgba(74,158,221,0.2);
  }

  .map-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, calc(-50% + 30px));
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    color: var(--blue);
    white-space: nowrap;
  }

  .route-line {
    position: absolute;
    top: 50%; left: 50%;
    transform-origin: 0 0;
    height: 1px;
    background: linear-gradient(to right, var(--blue), transparent);
    opacity: 0.4;
  }

  .route-dot {
    position: absolute;
    width: 6px; height: 6px;
    background: var(--gray-mid);
    border-radius: 50%;
  }

  .route-dot-label {
    position: absolute;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray);
    white-space: nowrap;
  }

  @keyframes pulse-ring {
    0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.03); }
  }

  /* TICKER */
  .ticker {
    background: var(--blue);
    padding: 0.7rem 0;
    overflow: hidden;
    white-space: nowrap;
    max-width: 100vw;
    width: 100%;
  }

  .ticker-inner {
    display: inline-flex;
    gap: 3rem;
    animation: ticker 18s linear infinite;
  }

  .ticker-item {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.1em;
    color: var(--white);
  }

  .ticker-item::before {
    content: '—';
    margin-right: 1rem;
    opacity: 0.6;
  }

  @keyframes ticker {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  /* LEISTUNGEN */
  section { padding: 6rem max(2rem, calc((100vw - 1280px) / 2 + 4rem)); }

  .section-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 1rem;
  }

  .section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1;
    letter-spacing: 0.03em;
    margin-bottom: 1rem;
  }

  .section-sub {
    color: var(--gray);
    max-width: 520px;
    font-weight: 300;
    margin-bottom: 3.5rem;
  }

  #leistungen { background: var(--white); }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5px;
    background: var(--gray-light);
    border: 1.5px solid var(--gray-light);
  }
  .service-card { grid-column: span 2; }
  .service-card:nth-child(4),
  .service-card:nth-child(5) { grid-column: span 3; }

  .service-card {
    background: var(--white);
    padding: 2.5rem;
    transition: background 0.2s;
    position: relative;
    overflow: hidden;
  }

  .service-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    height: 2px;
    width: 0;
    background: var(--blue);
    transition: width 0.3s;
  }

  .service-card:hover { background: rgba(74,158,221,0.05); }
  .service-card:hover::after { width: 100%; }

  .service-icon {
    width: 44px; height: 44px;
    background: var(--black);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
  }

  .service-icon svg { width: 22px; height: 22px; stroke: var(--blue); fill: none; stroke-width: 1.5; }

  .service-card h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.8rem;
  }

  .service-card p {
    color: var(--gray);
    font-size: 0.9rem;
    font-weight: 300;
    line-height: 1.7;
  }

  .service-tag {
    display: inline-block;
    margin-top: 1.2rem;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--blue);
    border: 1px solid rgba(74,158,221,0.3);
    padding: 0.25rem 0.6rem;
    border-radius: 1px;
  }

  /* REGION */
  #region { background: var(--black); color: var(--white); }

  #region .section-title { color: var(--white); }
  #region .section-sub { color: var(--gray-mid); }

  .region-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }

  .region-map-box {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 2px;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
    position: relative;
    overflow: hidden;
  }

  .region-map-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 24px,
      rgba(255,255,255,0.02) 24px,
      rgba(255,255,255,0.02) 25px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 24px,
      rgba(255,255,255,0.02) 24px,
      rgba(255,255,255,0.02) 25px
    );
  }

  .region-zones {
    position: relative;
    z-index: 1;
    text-align: center;
  }

  .zone {
    display: inline-block;
    border-radius: 50%;
    border: 1px solid;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    position: relative;
  }

  .zone-1 {
    width: 100px; height: 100px;
    border-color: var(--blue);
    background: rgba(74,158,221,0.1);
  }

  .zone-2 {
    width: 180px; height: 180px;
    border-color: rgba(74,158,221,0.5);
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
  }

  .zone-3 {
    width: 260px; height: 260px;
    border-color: rgba(74,158,221,0.2);
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
  }

  .zone-wrapper {
    width: 260px; height: 260px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .zone-label {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    color: var(--white);
  }

  .zone-dot {
    position: absolute;
    width: 5px; height: 5px;
    background: var(--blue);
    border-radius: 50%;
  }

  .zone-dot-label {
    position: absolute;
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray);
    white-space: nowrap;
  }

  .region-list { list-style: none; }

  .region-list li {
    padding: 1.1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-weight: 300;
    color: var(--gray-mid);
    font-size: 0.95rem;
  }

  .region-list li::before {
    content: '';
    width: 18px; height: 18px;
    min-width: 18px;
    background: var(--blue);
    border-radius: 50%;
    margin-top: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    color: white;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-size: 10px;
    background-repeat: no-repeat;
    background-position: center;
  }

  .region-list strong { color: var(--white); font-weight: 500; }

  /* KONTAKT */
  #kontakt { background: var(--white); }

  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
  }

  .contact-info p {
    color: var(--gray);
    font-weight: 300;
    margin-bottom: 2.5rem;
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .contact-detail {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-bottom: 2.5rem;
  }

  .contact-row {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .contact-icon {
    width: 36px; height: 36px;
    background: var(--black);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .contact-icon svg { width: 16px; height: 16px; stroke: var(--blue); fill: none; stroke-width: 1.5; }

  .contact-row-text { font-size: 0.9rem; }
  .contact-row-text span { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gray); }
  .contact-row-text a { color: var(--black); text-decoration: none; font-weight: 500; }
  .contact-row-text a:hover { color: var(--blue); }

  /* FORM */
  .contact-form { display: flex; flex-direction: column; gap: 1rem; }

  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

  .form-group { display: flex; flex-direction: column; gap: 0.4rem; }

  .form-group label {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray);
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    border: 1px solid var(--gray-light);
    background: var(--white);
    padding: 0.75rem 1rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--black);
    border-radius: 2px;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
  }

  .form-group input:focus,
  .form-group select:focus,
  .form-group textarea:focus {
    border-color: var(--blue);
  }

  .form-group textarea { min-height: 110px; resize: vertical; }

  .form-submit {
    background: var(--black);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .form-submit:hover { background: var(--blue); }

  .form-submit span { font-size: 1.2rem; }

  /* FOOTER */
  footer {
    background: var(--black);
    color: var(--gray-mid);
    padding: 3rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255,255,255,0.06);
  }

  .footer-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    color: var(--white);
  }

  .footer-logo span { color: var(--blue); }

  .footer-links { display: flex; gap: 2rem; }

  .footer-links a {
    color: var(--gray);
    font-size: 0.8rem;
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: color 0.2s;
  }

  .footer-links a:hover { color: var(--white); }

  .footer-copy {
    font-size: 0.75rem;
    color: var(--gray);
  }

  /* ANIMATIONS */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .hero-tag, .hero h1, .hero-sub, .hero-btns, .hero-stats {
    animation: fadeUp 0.6s ease both;
  }

  .hero h1 { animation-delay: 0.1s; }
  .hero-sub { animation-delay: 0.2s; }
  .hero-btns { animation-delay: 0.3s; }
  .hero-stats { animation-delay: 0.4s; }

  /* MOBILE */
  @media (max-width: 768px) {
    nav { padding: 1rem 1.5rem; position: relative; }
    nav ul { 
      display: none !important; 
      flex-direction: column; 
      position: fixed; 
      top: 0; left: 0; right: 0; bottom: 0;
      background: var(--black); 
      padding: 5rem 2rem 2rem; 
      gap: 0; 
      z-index: 999;
      overflow-y: auto;
    }
    nav ul.open { display: flex !important; }
    nav ul.open .nav-close-li { display: block; }
    nav ul li { border-bottom: 0.5px solid rgba(255,255,255,0.08); }
    nav ul a { display: block; padding: 1rem 0; font-size: 1.1rem; color: var(--white); }
    nav ul a:hover { color: var(--blue); }
    .nav-cta { 
      margin-top: 1rem; 
      text-align: center; 
      display: block !important; 
      background: var(--blue) !important;
      padding: 0.8rem !important;
      border-radius: 4px;
    }
    .hamburger { 
      display: flex !important; 
      flex-direction: column; 
      gap: 6px; 
      cursor: pointer; 
      padding: 8px; 
      background: none; 
      border: none;
      z-index: 1000;
      position: relative;
    }
    .hamburger span { 
      display: block; 
      width: 26px; 
      height: 2px; 
      background: var(--white); 
      border-radius: 2px; 
      transition: all 0.3s; 
    }
    .hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
    section { padding: 4rem 1.5rem; }
    .hero-btns { flex-wrap: wrap; }
    .hero { grid-template-columns: 1fr; min-height: auto; }
    .hero-left { padding: 5rem 1.5rem 2rem; }
    .hero-right { display: none; }
    .hero-tag { font-size: 0.65rem; }
    .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
    .hero-btns { flex-direction: column; }
    .btn-primary, .btn-secondary { text-align: center; }
    .services-grid { grid-template-columns: 1fr; }
    .service-card,
    .service-card:nth-child(4),
    .service-card:nth-child(5) { grid-column: span 1; }
    .region-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
    .zone-wrapper { width: 220px; height: 220px; }
    .zone-3 { width: 220px; height: 220px; }
    .zone-2 { width: 150px; height: 150px; }
    .zone-1 { width: 80px; height: 80px; }
    .form-row { grid-template-columns: 1fr; }
    footer { flex-direction: column; gap: 1.5rem; text-align: center; padding: 2rem 1.5rem; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
  }
  .hamburger { display: none; }

/* Über uns Sektion */
.ueber-section { background: var(--black); color: var(--white); }
.ueber-label { color: var(--blue); }
.ueber-title { color: var(--white); }
.ueber-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 2rem; }
.ueber-text { color: var(--gray-mid); font-weight: 300; line-height: 1.9; margin-bottom: 1.5rem; }
.ueber-text:last-child { margin-bottom: 0; }
.ueber-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 2rem; margin-top: 3rem; padding-top: 3rem; border-top: 1px solid rgba(255,255,255,0.08); }
.ueber-stat { text-align: center; }
.ueber-stat-num { font-family: 'Bebas Neue', sans-serif; font-size: 2.5rem; color: var(--blue); letter-spacing: 0.05em; }
.ueber-stat-label { font-size: 0.8rem; color: var(--gray-mid); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 0.3rem; }

/* Nav close button */
.nav-close-li { display: none; border-bottom: none !important; text-align: right; padding-bottom: 1rem; }
.nav-close-btn { background: none; border: none; color: var(--gray-mid); font-size: 1.5rem; cursor: pointer; }

/* Karten Positionen */
.map-wrap { position: relative; width: 300px; height: 300px; margin: auto; }
.map-circle-lg { width: 280px; height: 280px; }
.map-circle-sm { width: 180px; height: 180px; animation-delay: 0.8s; }
.dot-potsdam { top: 20%; left: 60%; }
.dot-potsdam-label { top: 18%; left: 65%; color: #6b6b6b; font-size: 0.6rem; letter-spacing: 0.1em; }
.dot-cottbus { top: 70%; left: 30%; }
.dot-cottbus-label { top: 74%; left: 20%; color: #6b6b6b; font-size: 0.6rem; letter-spacing: 0.1em; }
.dot-hamburg { top: 30%; left: 20%; }
.dot-hamburg-label { top: 28%; left: 5%; color: #6b6b6b; font-size: 0.6rem; letter-spacing: 0.1em; }
.dot-dresden { top: 75%; left: 65%; }
.dot-dresden-label { top: 79%; left: 65%; color: #6b6b6b; font-size: 0.6rem; letter-spacing: 0.1em; }

@media (max-width: 768px) {
  .ueber-grid { grid-template-columns: 1fr; gap: 0; }
  .ueber-stats { grid-template-columns: repeat(2,1fr); }
}

/* Zone Labels */
.zone-label-top { top: -18px; left: 50%; transform: translateX(-50%); font-size: 0.6rem; letter-spacing: 0.1em; color: #8ab4d4; }
.zone-label-bottom { bottom: -18px; left: 50%; transform: translateX(-50%); font-size: 0.6rem; letter-spacing: 0.1em; color: #8ab4d4; }

/* Kontakt Hinweis */
.kontakt-hinweis { font-size: 0.85rem; color: #9e9e9e; border-left: 2px solid #4a9edd; padding-left: 1rem; margin-top: 1rem; }

/* Ueber uns Links */
.ueber-links-box { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.08); }
.ueber-links-title { margin-bottom: 1rem !important; }
.ueber-links-grid { display: flex; flex-wrap: wrap; gap: 1rem; }
.ueber-link { color: var(--blue); text-decoration: none; font-size: 0.9rem; transition: opacity 0.2s; }
.ueber-link:hover { opacity: 0.8; }