*,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  :root {
    --red: #C8181A;
    --red-dark: #8B1012;
    --red-deep: #5C0A0B;
    --orange: #E8722A;
    --blue: #1A8BC8;
    --blue-light: #4AB0E8;
    --green: #2A9E4A;
    --yellow: #C8B818;
    --yellow-light: #E0D030;
    --off-white: #F5F0EB;
    --warm-gray: #E8E2DA;
    --text-dark: #1A1410;
    --text-mid: #4A3C32;
    --text-light: #7A6A5A;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--off-white);
    color: var(--text-dark);
    overflow-x: hidden;
  }

  /* ── HERO ── */
  .hero {
    min-height: 100vh;
    background: var(--red);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 80px 24px 60px;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 20% 80%, rgba(92, 10, 11, 0.6) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, rgba(139, 16, 18, 0.4) 0%, transparent 40%);
    pointer-events: none;
  }

  .gear-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
  }

  .gear-bg svg {
    position: absolute;
    opacity: 0.08;
  }

  .hero-author {
    font-family: 'DM Sans', sans-serif;
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
  }

  .hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(72px, 12vw, 140px);
    font-weight: 900;
    color: var(--blue-light);
    line-height: 0.9;
    letter-spacing: -2px;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s ease both;
  }

  .hero-connector {
    width: 3px;
    height: 60px;
    background: rgba(255, 255, 255, 0.3);
    margin: 24px auto;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s 0.2s ease both;
  }

  .hero-subtitle-top {
    font-family: 'Playfair Display', serif;
    font-size: clamp(18px, 3vw, 28px);
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s 0.3s ease both;
    letter-spacing: 1px;
  }

  .hero-planbar {
    font-family: 'Playfair Display', serif;
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 700;
    color: #6EE06E;
    line-height: 1;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s 0.4s ease both;
    letter-spacing: -1px;
  }

  .hero-nachvollziehbar {
    font-family: 'Playfair Display', serif;
    font-size: clamp(28px, 5vw, 60px);
    font-weight: 700;
    color: #FF5FCB;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s 0.5s ease both;
    margin-top: 8px;
  }

  .hero-tagline {
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
    margin-top: 12px;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s 0.6s ease both;
  }

  .hero-cta {
    margin-top: 48px;
    position: relative;
    z-index: 2;
    animation: fadeUp 1s 0.7s ease both;
  }

  .btn-primary {
    display: inline-block;
    background: white;
    color: var(--red);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 18px 48px;
    transition: all 0.2s ease;
    border: 2px solid white;
  }

  .btn-primary:hover {
    background: transparent;
    color: var(--red);
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 48px;
    background: rgba(200, 24, 26, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-logo {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 700;
    color: white;
    text-decoration: none;
    letter-spacing: -0.5px;
  }

  .nav-logo span {
    color: #6EE06E;
  }

  .nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
  }

  .nav-links a {
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
  }

  .nav-links a:hover {
    color: white;
  }

  .nav-toggle {
    display: none;
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.35);
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 8px 12px;
    cursor: pointer;
  }

  /* ── SECTION BASE ── */
  section {
    padding: 100px 24px;
  }

  .container {
    max-width: 1100px;
    margin: 0 auto;
  }

  .section-label {
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 16px;
  }

  .section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(36px, 5vw, 60px);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-dark);
    margin-bottom: 24px;
  }

  .section-title.light {
    color: white;
  }

  /* ── INTRO ── */
  .intro {
    background: var(--off-white);
  }

  .intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }

  .intro-text p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-mid);
    margin-bottom: 20px;
  }

  .intro-text p strong {
    color: var(--red);
    font-weight: 500;
  }

  .intro-highlight {
    background: var(--red);
    color: white;
    padding: 40px;
    position: relative;
  }

  .intro-highlight::before {
    content: '„';
    font-family: 'Playfair Display', serif;
    font-size: 120px;
    color: rgba(255, 255, 255, 0.15);
    position: absolute;
    top: -20px;
    left: 20px;
    line-height: 1;
  }

  .intro-highlight p {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    font-style: italic;
    line-height: 1.5;
    position: relative;
    z-index: 1;
  }

  .three-words {
    display: flex;
    gap: 0;
    margin-top: 24px;
  }

  .word-tag {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 8px 16px;
    font-weight: 500;
  }

  .word-tag+.word-tag {
    border-left: none;
  }

  /* ── FORMEL ── */
  .formel-section {
    background: var(--text-dark);
    position: relative;
    overflow: hidden;
  }

  .formel-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(200, 24, 26, 0.2) 0%, transparent 60%);
    pointer-events: none;
  }

  .formel-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
  }

  .formel-left .section-label {
    color: rgba(255, 255, 255, 0.4);
  }

  .formel-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .formel-step {
    display: grid;
    grid-template-columns: 48px 1fr;
    align-items: center;
  }

  .step-op {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--red);
    text-align: center;
  }

  .step-content {
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .step-name {
    font-size: 26px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
  }

  .step-abbr {
    font-family: 'DM Sans', sans-serif;
    font-size: 12px;
    letter-spacing: 2px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 2px;
  }

  .step-abbr.mkp {
    background: rgba(232, 114, 42, 0.2);
    color: #E8722A;
  }

  .step-result {
    grid-column: 1 / -1;
    background: rgba(255, 255, 255, 0.05);
    padding: 16px 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .step-result-label {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
  }

  .result-final {
    background: var(--red) !important;
  }

  .result-final .step-result-label {
    color: white;
    font-size: 36px;
  }

  .formel-right {
    padding-top: 60px;
  }

  .formel-example-box {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    position: relative;
  }

  .example-title {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 24px;
  }

  .example-calc {
    font-family: 'Playfair Display', serif;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 2.2;
  }

  .example-calc strong {
    color: #6EE06E;
    font-size: 22px;
  }

  .calc-highlight {
    background: rgba(110, 224, 110, 0.1);
    border-left: 3px solid #6EE06E;
    padding: 16px 20px;
    margin-top: 24px;
  }

  .calc-highlight p {
    color: #6EE06E;
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
  }

  /* ── STELLRÄDER ── */
  .stellraeder {
    background: white;
  }

  .rad-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    margin-top: 60px;
    background: var(--warm-gray);
  }

  .rad-card {
    background: white;
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
  }

  .rad-card:hover {
    z-index: 2;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
  }

  .rad-example {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.4s ease, margin-top 0.4s ease;
    opacity: 0;
    margin-top: 0;
  }

  .rad-card:hover .rad-example {
    max-height: 500px;
    opacity: 1;
    margin-top: 20px;
  }

  .rad-example-inner {
    border-top: 1px solid var(--warm-gray);
    padding-top: 18px;
  }

  .rad-example-label {
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 10px;
  }

  .rad-example-text {
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-mid);
  }

  .rad-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
  }

  .rad-number {
    font-family: 'Playfair Display', serif;
    font-size: 80px;
    font-weight: 900;
    line-height: 1;
    opacity: 0.06;
    position: absolute;
    top: 20px;
    right: 30px;
  }

  .rad-abbr {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 12px;
  }

  .rad-subtitle {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 20px;
  }

  .rad-title {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
  }

  .rad-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-mid);
  }

  /* ── AUSGABEN ── */
  .ausgaben-band {
    background: var(--warm-gray);
    padding: 60px 24px;
  }

  .ausgaben-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }

  .ausgaben-label {
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 12px;
  }

  .ausgaben-title {
    font-family: 'Playfair Display', serif;
    font-size: 52px;
    font-weight: 900;
    color: var(--text-dark);
    opacity: 0.2;
    margin-bottom: 8px;
  }

  .ausgaben-body {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-mid);
  }

  /* ── EXAMPLE ── */
  .example-section {
    background: var(--red);
    padding: 100px 24px;
  }

  .example-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
  }

  .example-text p {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
  }

  .umsatz-box {
    background: rgba(0, 0, 0, 0.3);
    padding: 40px;
    text-align: center;
  }

  .umsatz-from {
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 16px;
  }

  .umsatz-number {
    font-family: 'Playfair Display', serif;
    font-size: 72px;
    font-weight: 900;
    color: white;
    line-height: 1;
  }

  .umsatz-euro {
    font-size: 32px;
    vertical-align: super;
    color: rgba(255, 255, 255, 0.6);
  }

  .umsatz-arrow {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.3);
    margin: 16px 0;
    line-height: 1;
  }

  .umsatz-to {
    font-family: 'Playfair Display', serif;
    font-size: 96px;
    font-weight: 900;
    color: #6EE06E;
    line-height: 1;
  }

  .umsatz-label {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #6EE06E;
    margin-top: 8px;
  }

  /* ── FRAGEN ── */
  .fragen-section {
    background: var(--off-white);
  }

  .fragen-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    margin-top: 60px;
    background: var(--warm-gray);
  }

  .frage-card {
    background: var(--off-white);
    padding: 36px 32px;
  }

  .frage-num {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 900;
    color: var(--red);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 16px;
  }

  .frage-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-mid);
  }

  /* ── AUTOR ── */
  .autor-section {
    background: white;
    padding: 100px 24px;
  }

  .autor-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 80px;
    align-items: start;
  }

  .autor-photo {
    position: relative;
  }

  .autor-photo img {
    width: 100%;
    display: block;
    filter: grayscale(100%);
  }

  .autor-photo-accent {
    position: absolute;
    bottom: -12px;
    right: -12px;
    width: 60%;
    height: 60%;
    background: var(--red);
    z-index: -1;
  }

  .autor-name {
    font-family: 'Playfair Display', serif;
    font-size: 40px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
  }

  .autor-role {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 32px;
  }

  .autor-bio {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-mid);
    margin-bottom: 16px;
  }

  .autor-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 32px;
  }

  .autor-tag {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 8px 16px;
    border: 1px solid var(--warm-gray);
    color: var(--text-light);
  }

  /* ── CTA ── */
  .cta-section {
    background: var(--text-dark);
    padding: 120px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .cta-section::before {
    content: 'TUN!';
    position: absolute;
    font-family: 'Playfair Display', serif;
    font-size: 300px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.025);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    white-space: nowrap;
  }

  .cta-eyebrow {
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: 24px;
  }

  .cta-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(40px, 6vw, 80px);
    font-weight: 900;
    color: white;
    line-height: 1.05;
    margin-bottom: 48px;
    position: relative;
    z-index: 1;
  }

  .cta-title span {
    color: var(--red);
    display: block;
  }

  .cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
  }

  .btn-red {
    display: inline-block;
    background: var(--red);
    color: white;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 18px 48px;
    transition: all 0.2s ease;
    border: 2px solid var(--red);
  }

  .btn-red:hover {
    background: var(--red-dark);
    border-color: var(--red-dark);
  }

  .btn-ghost {
    display: inline-block;
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
    padding: 18px 36px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.2s ease;
  }

  .btn-ghost:hover {
    color: white;
    border-color: rgba(255, 255, 255, 0.4);
  }

  /* ── FOOTER ── */
  footer {
    background: #0E0A08;
    padding: 40px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .footer-logo {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    font-weight: 700;
    color: white;
    text-decoration: none;
  }

  .footer-logo span {
    color: #6EE06E;
  }

  .footer-links {
    display: flex;
    gap: 32px;
  }

  .footer-links a {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.3);
    text-decoration: none;
    transition: color 0.2s;
  }

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

  .footer-contact {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.3);
  }

  .footer-contact a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.2s;
  }

  .footer-contact a:hover {
    color: white;
  }

  /* ── RESPONSIVE ── */
  @media (max-width: 768px) {
    nav {
      padding: 16px 24px;
    }

    .nav-toggle {
      display: inline-block;
    }

    .nav-links {
      display: none;
      position: absolute;
      top: calc(100% + 1px);
      left: 0;
      right: 0;
      flex-direction: column;
      gap: 0;
      background: rgba(139, 16, 18, 0.98);
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding: 12px 24px;
    }

    .nav-links li {
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .nav-links li:last-child {
      border-bottom: none;
    }

    .nav-links a {
      display: block;
      padding: 12px 0;
    }

    .nav-links.is-open {
      display: flex;
    }

    .intro-grid,
    .formel-inner,
    .example-inner,
    .autor-inner,
    .ausgaben-inner {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .rad-grid,
    .fragen-grid {
      grid-template-columns: 1fr;
    }

    footer {
      flex-direction: column;
      gap: 24px;
      text-align: center;
      padding: 40px 24px;
    }

    .footer-links {
      flex-direction: column;
      gap: 16px;
    }
  }