:root {
      --text-main: #0f172a;
      --text-muted: #475569;
      --accent: #0066cc;
      --accent-hover: #004c99;
      --accent-soft: #60a5fa;
      --bg-page: #fafbfc;
      --glass-bg: rgba(255, 255, 255, 0.75);
      --glass-border: rgba(255, 255, 255, 0.8);
      --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.08);
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      color: var(--text-main);
      background: var(--bg-page);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    /* SIRI FLOW - VERY SLOW (50 seconds) */
    .siri-bg-container {
      position: fixed;
      inset: 0;
      z-index: -2;
      overflow: hidden;
    }

    .siri-bg {
      position: absolute;
      inset: -10%;
      width: 120%;
      height: 120%;
      transition: transform 0.2s ease;
    }

    .blob {
      position: absolute;
      border-radius: 50%;
      filter: blur(60px);
      opacity: 0.4;
      animation: floatSlow 50s infinite alternate ease-in-out;
    }

    .blob-1 {
      top: 10%;
      left: 5%;
      width: 400px;
      height: 400px;
      background: #d8b4fe;
      animation-delay: 0s;
    }

    .blob-2 {
      bottom: 10%;
      right: 5%;
      width: 500px;
      height: 500px;
      background: #bae6fd;
      animation-delay: -10s, -8s;
    }

    .blob-3 {
      top: 40%;
      left: 35%;
      width: 350px;
      height: 350px;
      background: #bfdbfe;
      animation-delay: -25s, -18s;
    }

    @keyframes floatSlow {
      0% { transform: translate(0, 0) scale(1); }
      25% { transform: translate(5%, 8%) scale(1.08); }
      50% { transform: translate(3%, 5%) scale(1.05); }
      75% { transform: translate(-4%, 10%) scale(1.02); }
      100% { transform: translate(-3%, 8%) scale(0.95); }
    }
    
    @keyframes blobDrift {
      0% { transform: translate(0, 0); }
      25% { transform: translate(8px, 12px); }
      50% { transform: translate(5px, 8px); }
      75% { transform: translate(-6px, 15px); }
      100% { transform: translate(-5px, 10px); }
    }
    
    .blob {
      animation: floatSlow 50s infinite alternate ease-in-out, blobDrift 35s infinite ease-in-out;
    }

    /* ANIMATED COLUMNS */
    .column-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
      margin: 50px 0;
    }

    .animated-column {
      position: relative;
      min-height: 520px;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
      background: white;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 36px 30px 30px;
      transition: transform 0.3s ease;
    }

    .animated-column:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    }

    .column-gradient {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, #d8b4fe 0%, #bae6fd 50%, #bfdbfe 100%);
      opacity: 0;
      animation: colorFlow 8s infinite ease-in-out;
      z-index: 0;
    }

    .animated-column:nth-child(2) .column-gradient {
      animation-delay: -2.67s;
    }

    .animated-column:nth-child(3) .column-gradient {
      animation-delay: -5.33s;
    }

    @keyframes colorFlow {
      0% { 
        background: linear-gradient(135deg, #d8b4fe 0%, #bae6fd 50%, #bfdbfe 100%);
        opacity: 0.15;
      }
      25% { 
        background: linear-gradient(135deg, #bae6fd 0%, #bfdbfe 50%, #c7d2fe 100%);
        opacity: 0.2;
      }
      50% { 
        background: linear-gradient(135deg, #bfdbfe 0%, #c7d2fe 50%, #d8b4fe 100%);
        opacity: 0.25;
      }
      75% { 
        background: linear-gradient(135deg, #c7d2fe 0%, #d8b4fe 50%, #bae6fd 100%);
        opacity: 0.2;
      }
      100% { 
        background: linear-gradient(135deg, #d8b4fe 0%, #bae6fd 50%, #bfdbfe 100%);
        opacity: 0.15;
      }
    }

    .column-content {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: column;
      height: 100%;
      justify-content: space-between;
    }

    .column-icon {
      font-size: 48px;
      margin-bottom: 20px;
      display: block;
    }

    /* PILLAR GRAPHICS — Apple-inspired iconography */
    .pillar-graphic {
      width: 100%;
      height: 140px;
      margin-bottom: 24px;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .pillar-graphic svg {
      width: 140px;
      height: 140px;
      overflow: visible;
      filter: drop-shadow(0 14px 28px rgba(15, 23, 42, 0.10)) drop-shadow(0 4px 8px rgba(15, 23, 42, 0.06));
      transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    }
    .animated-column:hover .pillar-graphic svg {
      transform: translateY(-3px) scale(1.02);
    }

    /* Foundation: rotating concentric squircles */
    .pg-foundation .pg-ring-inner {
      transform-origin: 70px 70px;
      animation: pgFoundSpinSlow 24s linear infinite;
    }
    .pg-foundation .pg-ring-mid {
      transform-origin: 70px 70px;
      animation: pgFoundSpinSlow 30s linear infinite reverse;
    }
    @keyframes pgFoundSpinSlow {
      to { transform: rotate(360deg); }
    }

    /* AI: gentle orb pulse */
    .pg-ai .pg-orb-glow {
      transform-origin: center;
      transform-box: fill-box;
      animation: pgAiPulse 4s ease-in-out infinite;
    }
    @keyframes pgAiPulse {
      0%, 100% { opacity: 0.65; transform: scale(1); }
      50% { opacity: 1; transform: scale(1.06); }
    }
    .pg-ai .pg-spark {
      transform-origin: center;
      transform-box: fill-box;
      animation: pgAiSparkle 3.5s ease-in-out infinite;
    }
    .pg-ai .pg-spark-2 { animation-delay: 1.2s; }
    @keyframes pgAiSparkle {
      0%, 100% { opacity: 0.4; transform: scale(0.8); }
      50% { opacity: 1; transform: scale(1.1); }
    }

    /* Integration: arrows drift */
    .pg-integration .pg-arrow {
      transform-origin: 70px 70px;
      animation: pgIntFloat 5s ease-in-out infinite;
    }
    .pg-integration .pg-arrow-2 { animation-delay: -2.5s; }
    @keyframes pgIntFloat {
      0%, 100% { transform: rotate(0deg); }
      50% { transform: rotate(8deg); }
    }

    /* Smaller variant for home cards */
    .pillar-graphic-sm {
      width: 72px;
      height: 72px;
      margin-bottom: 18px;
      display: block;
    }
    .pillar-graphic-sm svg {
      width: 100%;
      height: 100%;
      overflow: visible;
      filter: drop-shadow(0 8px 16px rgba(15, 23, 42, 0.08));
    }

    .column-title {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .column-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 20px;
    }

    .column-number {
      font-size: 56px;
      font-weight: 900;
      background: linear-gradient(135deg, #d8b4fe 0%, #bae6fd 50%, #bfdbfe 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      opacity: 0.3;
      text-align: right;
    }

    /* NAVIGATION */
    nav {
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      width: 90%;
      max-width: 900px;
      height: 50px;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.8);
      border-radius: 20px;
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 30px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
    }

    .nav-logo {
      font-weight: 700;
      font-size: 14px;
      cursor: pointer;
      transition: color 0.2s;
    }

    .nav-logo:hover {
      color: var(--accent);
    }

    .nav-links {
      display: flex;
      gap: 30px;
      list-style: none;
    }

    .nav-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 13px;
      font-weight: 500;
      transition: color 0.2s;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 20px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* FOOTER */
    footer {
      background: var(--bg-secondary);
      border-top: 1px solid rgba(0, 0, 0, 0.05);
      padding: 40px 30px;
      text-align: center;
      margin-top: 80px;
      font-size: 13px;
      color: var(--text-muted);
    }

    footer a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s;
    }

    footer a:hover {
      color: var(--accent);
      text-decoration: underline;
    }

    /* PAGES */
    .page {
      min-height: 100vh;
      padding: 80px 30px 60px;
      display: none;
      animation: fadeInPage 0.4s ease-out;
    }

    .page.active {
      display: block;
    }

    @keyframes fadeInPage {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    section {
      max-width: 900px;
      margin: 0 auto;
      position: relative;
    }

    section + section {
      margin-top: 100px;
      padding-top: 60px;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
    }

    /* TYPOGRAPHY */
    h1 {
      font-size: clamp(36px, 7vw, 56px);
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 20px;
    }

    h2 {
      font-size: clamp(28px, 5vw, 38px);
      font-weight: 700;
      margin-bottom: 20px;
    }

    .subtitle {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 700px;
      line-height: 1.6;
      margin-bottom: 30px;
    }

    .badge {
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--accent);
      margin-bottom: 12px;
      display: inline-block;
    }

    /* BUTTONS */
    .btn-group {
      display: flex;
      gap: 15px;
      margin: 40px 0;
      flex-wrap: wrap;
    }

    .btn {
      padding: 12px 28px;
      border-radius: 12px;
      font-weight: 600;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.2s;
      border: none;
      font-size: 14px;
      display: inline-block;
    }

    .btn-primary {
      background: var(--accent);
      color: white;
      box-shadow: 0 4px 12px rgba(0, 102, 204, 0.2);
    }

    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0, 102, 204, 0.3);
    }

    .btn-outline {
      background: white;
      border: 1px solid var(--accent);
      color: var(--accent);
    }

    .btn-outline:hover {
      background: rgba(0, 102, 204, 0.05);
      transform: translateY(-2px);
    }

    /* GRID & CARDS */
    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
      margin: 50px 0;
    }

    .card {
      background: white;
      padding: 35px 30px;
      border-radius: 16px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }

    .card:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }

    .card-icon {
      font-size: 40px;
      margin-bottom: 15px;
      display: block;
    }

    .card-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .card-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* STATS */
    .stats-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 40px;
      margin: 50px 0;
      padding: 40px 0;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
    }

    .stat-item {
      text-align: center;
      min-width: 150px;
    }

    .stat-num {
      font-size: clamp(36px, 6vw, 48px);
      font-weight: 800;
      color: var(--accent);
      display: inline-block;
    }

    .stat-label {
      font-size: 12px;
      font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-top: 5px;
    }

    /* SKILLS */
    .profile-grid {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 40px;
      align-items: start;
      margin: 50px 0;
    }

    .avatar {
      background: white;
      padding: 40px;
      border-radius: 16px;
      aspect-ratio: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 80px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .skill-item {
      margin-bottom: 20px;
    }

    .skill-header {
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
      font-size: 14px;
      font-weight: 600;
    }

    .skill-track {
      background: rgba(0, 0, 0, 0.06);
      height: 8px;
      border-radius: 4px;
      overflow: hidden;
    }

    .skill-fill {
      background: linear-gradient(90deg, var(--accent), var(--accent-soft));
      height: 100%;
      border-radius: 4px;
      width: 0;
      transition: width 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    /* LISTS */
    .apple-list {
      list-style: none;
      margin: 20px 0;
    }

    .apple-list li {
      padding: 14px 0;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
      font-size: 15px;
      display: flex;
      gap: 15px;
      align-items: baseline;
      line-height: 1.5;
    }

    .apple-list li:last-child {
      border-bottom: none;
    }

    .list-num {
      color: var(--accent);
      font-size: 13px;
      font-weight: 700;
      flex-shrink: 0;
    }

    /* ACCORDION */
    .accordion {
      margin: 30px 0;
    }

    .accordion-item {
      background: white;
      border: 1px solid rgba(0, 0, 0, 0.05);
      border-radius: 12px;
      margin-bottom: 12px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
      transition: all 0.2s;
    }

    .accordion-item:hover {
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    }

    .accordion-header {
      padding: 18px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 700;
      font-size: 16px;
      user-select: none;
      transition: background 0.2s;
    }

    .accordion-header:hover {
      background: rgba(0, 102, 204, 0.02);
    }

    .accordion-icon {
      width: 24px;
      height: 24px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }

    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }

    .accordion-inner {
      padding: 0 24px 24px 24px;
    }

    .accordion-item.active .accordion-content {
      max-height: 1000px;
    }

    .accordion-item.active .accordion-icon {
      transform: rotate(180deg);
    }

    /* TIMELINE */
    .timeline-container {
      position: relative;
      padding-left: 30px;
      margin: 40px 0;
    }

    .timeline-track {
      position: absolute;
      left: 6px;
      top: 10px;
      bottom: 30px;
      width: 4px;
      background: rgba(0, 0, 0, 0.05);
      border-radius: 4px;
    }

    .timeline-progress {
      position: absolute;
      left: 6px;
      top: 10px;
      width: 4px;
      height: 0%;
      background: var(--accent);
      border-radius: 4px;
      box-shadow: 0 0 8px rgba(0, 102, 204, 0.3);
      transition: height 0.1s ease-out;
    }

    .timeline-item {
      position: relative;
      margin-bottom: 40px;
      opacity: 0.5;
      transition: opacity 0.5s ease, transform 0.5s ease;
      transform: translateX(15px);
    }

    .timeline-item.active {
      opacity: 1;
      transform: translateX(0);
    }

    .timeline-item::before {
      content: '';
      position: absolute;
      left: -30px;
      top: 5px;
      width: 16px;
      height: 16px;
      background: white;
      border: 3px solid rgba(0, 0, 0, 0.1);
      border-radius: 50%;
      transition: all 0.3s;
      z-index: 2;
    }

    .timeline-item.active::before {
      border-color: var(--accent);
      box-shadow: 0 0 8px rgba(0, 102, 204, 0.3);
    }

    .timeline-label {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 5px;
    }

    .timeline-item h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    /* TABLE */
    .table-wrapper {
      width: 100%;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
      border-radius: 12px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      margin: 30px 0;
    }

    table {
      width: 100%;
      min-width: 600px;
      border-collapse: collapse;
      background: white;
    }

    th, td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    th {
      background: rgba(0, 102, 204, 0.03);
      font-weight: 700;
      font-size: 14px;
      color: var(--text-muted);
    }

    td:first-child {
      font-weight: 600;
    }

    /* Soft Apple-pastel hover for table rows */
    tbody tr {
      transition: background-color 0.35s ease;
    }
    tbody tr:nth-child(1):hover { background: #FFE5B4; }   /* peach (Fokus) */
    tbody tr:nth-child(2):hover { background: #C8E6F5; }   /* sky blue (Ablauf) */
    tbody tr:nth-child(3):hover { background: #E1D4F5; }   /* lavender (KI) */
    tbody tr:nth-child(4):hover { background: #C8EBD3; }   /* mint (Ergebnis) */
    tbody tr:nth-child(5):hover { background: #FFD4D8; }   /* soft pink (Datenschutz) */

    /* CONTACT FORM */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      margin: 40px 0;
      align-items: stretch;
    }

    .contact-form-wrap {
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
    }

    /* Spacer auf rechter Seite gleicht den linken h2 + subtitle aus,
       damit beide Cards auf gleicher Höhe beginnen. */
    .contact-form-spacer {
      /* h2 (28px line-height ~1.2 = ~34px) + margin-bottom unsichtbar
         + subtitle (~22px) + margin-bottom 30px = ~108px */
      height: 108px;
    }

    @media (max-width: 768px) {
      .contact-form-spacer { display: none; }
    }

    .contact-form-wrap > .card {
      width: 100%;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-control {
      width: 100%;
      padding: 14px;
      font-size: 14px;
      font-family: var(--font-sans);
      background: white;
      border: 1px solid rgba(0, 0, 0, 0.1);
      border-radius: 12px;
      transition: all 0.2s;
      outline: none;
    }

    .form-control:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
      background: rgba(0, 102, 204, 0.01);
    }

    textarea.form-control {
      min-height: 120px;
      resize: vertical;
    }

    .form-success {
      display: none;
      background: #f0fdf4;
      color: #166534;
      padding: 16px;
      border-radius: 12px;
      margin-top: 16px;
      text-align: center;
      font-weight: 600;
      border: 1px solid #bbf7d0;
    }

    /* FOOTER */
    footer {
      max-width: 900px;
      margin: 0 auto;
      padding: 40px 30px;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
      font-size: 13px;
      color: var(--text-muted);
      text-align: center;
    }

    /* REVEAL */
    .reveal {
      opacity: 0;
      animation: reveal 0.5s ease-out forwards;
    }

    .reveal:nth-child(1) { animation-delay: 0s; }
    .reveal:nth-child(2) { animation-delay: 0.1s; }
    .reveal:nth-child(3) { animation-delay: 0.2s; }

    @keyframes reveal {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* RESPONSIVE */
    @media (max-width: 768px) {
      nav {
        width: 95%;
        padding: 0 20px;
      }

      .page {
        padding: 70px 15px 40px;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 55px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 15px;
        border-radius: 12px;
        border: 1px solid rgba(255, 255, 255, 0.8);
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        margin: 10px;
        text-align: center;
        gap: 10px;
      }

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

      .mobile-toggle {
        display: block;
      }

      .profile-grid,
      .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .avatar {
        max-width: 200px;
        margin: 0 auto;
      }

      .stats-row {
        gap: 20px;
      }

      .column-container {
        grid-template-columns: 1fr;
      }

      .animated-column {
        height: auto;
        min-height: 350px;
      }

      h1 {
        font-size: 36px;
      }

      h2 {
        font-size: 28px;
      }
    }
    /* === NAV SUBMENU === */
    .nav-item-has-sub {
      position: relative;
    }
    .nav-submenu {
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%) translateY(8px);
      background: white;
      border: 1px solid rgba(0, 0, 0, 0.06);
      border-radius: 12px;
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
      padding: 8px;
      min-width: 180px;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.2s ease, transform 0.2s ease;
      z-index: 100;
    }
    .nav-item-has-sub:hover .nav-submenu,
    .nav-item-has-sub:focus-within .nav-submenu {
      opacity: 1;
      visibility: visible;
      transform: translateX(-50%) translateY(2px);
    }
    .nav-submenu a {
      display: block;
      padding: 10px 14px;
      font-size: 14px;
      color: var(--text-main);
      text-decoration: none;
      border-radius: 8px;
      transition: background 0.15s ease;
    }
    .nav-submenu a:hover {
      background: rgba(0, 102, 204, 0.06);
      color: var(--accent);
    }
    .nav-cta {
      background: var(--accent);
      color: white !important;
      padding: 8px 16px !important;
      border-radius: 999px;
      font-weight: 600;
      transition: background 0.2s ease, transform 0.2s ease;
    }
    .nav-cta:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }
    @media (max-width: 768px) {
      .nav-submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 0 16px;
        background: transparent;
        min-width: 0;
      }
    }

    /* === MODULE TAG === */
    .module-tag {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--accent);
      background: rgba(0, 102, 204, 0.08);
      padding: 4px 10px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    /* === BOOKING SYSTEM === */
    .booking-login-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 30px;
      margin-top: 30px;
    }
    @media (max-width: 768px) {
      .booking-login-grid { grid-template-columns: 1fr; }
    }

    .booking-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }

    .calendar-nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }
    .calendar-nav button {
      background: white;
      border: 1px solid rgba(0, 0, 0, 0.08);
      border-radius: 10px;
      padding: 10px 16px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: inherit;
    }
    .calendar-nav button:hover {
      background: rgba(0, 102, 204, 0.05);
      border-color: var(--accent);
      color: var(--accent);
    }

    .calendar-legend {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
      padding: 12px 0;
      margin-bottom: 16px;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
      font-size: 12px;
      color: var(--text-muted);
    }
    .legend-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .legend-dot {
      width: 14px;
      height: 8px;
      border-radius: 2px;
      display: inline-block;
    }
    .legend-dot.free    { background: #34c759; }
    .legend-dot.booked  { background: #ff9500; }
    .legend-dot.blocked { background: #8e8e93; }
    .legend-dot.selected{ background: var(--accent); }

    .calendar-weekdays {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 6px;
      font-size: 11px;
      font-weight: 700;
      color: var(--text-muted);
      letter-spacing: 0.05em;
      text-transform: uppercase;
      padding: 0 0 10px;
      text-align: center;
    }
    .calendar-grid {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 6px;
    }
    .calendar-day {
      aspect-ratio: 1;
      background: rgba(0, 0, 0, 0.02);
      border: 1px solid rgba(0, 0, 0, 0.05);
      border-radius: 10px;
      padding: 6px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      cursor: pointer;
      transition: all 0.15s ease;
      position: relative;
      min-height: 60px;
    }
    .calendar-day:hover:not(.other-month):not(.blocked) {
      background: rgba(0, 102, 204, 0.05);
      border-color: var(--accent);
      transform: translateY(-1px);
    }
    .calendar-day.other-month {
      opacity: 0.3;
      cursor: default;
    }
    .calendar-day.blocked {
      background: rgba(142, 142, 147, 0.1);
      cursor: not-allowed;
      opacity: 0.6;
    }
    .calendar-day.has-selection {
      background: rgba(0, 102, 204, 0.08);
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.15);
    }
    .day-number {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .day-status {
      display: flex;
      gap: 2px;
    }
    .status-bar {
      flex: 1;
      height: 5px;
      border-radius: 2px;
    }
    .status-bar.free    { background: #34c759; }
    .status-bar.booked  { background: #ff9500; }
    .status-bar.blocked { background: #8e8e93; }

    @media (max-width: 600px) {
      .calendar-day { padding: 4px; min-height: 48px; }
      .day-number { font-size: 12px; }
      .calendar-weekdays { font-size: 10px; }
    }

    .selected-list {
      margin-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .selected-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 16px;
      background: rgba(0, 102, 204, 0.04);
      border: 1px solid rgba(0, 102, 204, 0.15);
      border-radius: 10px;
      gap: 12px;
    }
    .selected-item-info {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .selected-item-date {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .selected-item-time {
      font-size: 12px;
      color: var(--text-muted);
    }
    .selected-item-remove {
      background: transparent;
      border: 1px solid rgba(0, 0, 0, 0.08);
      color: var(--text-muted);
      width: 28px;
      height: 28px;
      border-radius: 8px;
      cursor: pointer;
      font-size: 14px;
      transition: all 0.15s ease;
    }
    .selected-item-remove:hover {
      background: rgba(255, 59, 48, 0.08);
      color: #ff3b30;
      border-color: #ff3b30;
    }
    .empty-selection {
      padding: 20px 0;
      text-align: center;
      font-style: italic;
      margin: 0;
    }
    #submitBookingBtn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    /* Booking modal */
    .booking-modal {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(10, 30, 60, 0.55);
      z-index: 9999;
      align-items: center;
      justify-content: center;
      padding: 20px;
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }
    .booking-modal.open { display: flex; }
    .booking-modal-content {
      background: white;
      border-radius: 18px;
      max-width: 460px;
      width: 100%;
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
      overflow: hidden;
      animation: bookingModalIn 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    }
    @keyframes bookingModalIn {
      from { opacity: 0; transform: translateY(20px) scale(0.97); }
      to   { opacity: 1; transform: translateY(0) scale(1); }
    }
    .booking-modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 22px 26px;
      border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    }
    .booking-modal-header h3 {
      margin: 0;
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
    }
    .booking-modal-close {
      background: transparent;
      border: none;
      cursor: pointer;
      font-size: 18px;
      color: var(--text-muted);
      width: 32px;
      height: 32px;
      border-radius: 8px;
      transition: background 0.15s ease;
    }
    .booking-modal-close:hover {
      background: rgba(0, 0, 0, 0.05);
      color: var(--text-main);
    }
    .booking-modal-body { padding: 22px 26px; }
    .booking-modal-footer {
      display: flex;
      justify-content: flex-end;
      gap: 10px;
      padding: 18px 26px;
      border-top: 1px solid rgba(0, 0, 0, 0.06);
      background: rgba(0, 0, 0, 0.015);
    }
    .booking-modal-footer .btn {
      padding: 10px 20px;
      font-size: 13px;
    }
    .booking-option {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 16px;
      border: 1px solid rgba(0, 0, 0, 0.08);
      border-radius: 12px;
      cursor: pointer;
      margin-bottom: 10px;
      transition: all 0.15s ease;
    }
    .booking-option:hover {
      background: rgba(0, 102, 204, 0.03);
      border-color: var(--accent);
    }
    .booking-option input[type="radio"] {
      accent-color: var(--accent);
      width: 16px;
      height: 16px;
      cursor: pointer;
    }
    .booking-option:has(input:checked) {
      background: rgba(0, 102, 204, 0.06);
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.12);
    }
    .booking-option-text {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .booking-option-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .booking-option-time {
      font-size: 12px;
      color: var(--text-muted);
    }


    /* ===== DARK MODE ===== */
    [data-theme="dark"] {
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --accent: #60a5fa;
      --accent-hover: #3b82f6;
      --accent-soft: #93c5fd;
      --bg-page: #0f172a;
      --bg-secondary: #1e293b;
      --glass-bg: rgba(15, 23, 42, 0.85);
      --glass-border: rgba(255, 255, 255, 0.08);
      --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
    }
    [data-theme="dark"] body { background: var(--bg-page); color: var(--text-main); }
    [data-theme="dark"] .card,
    [data-theme="dark"] .accordion-item { background: #1e293b; }
    [data-theme="dark"] .animated-column { background: #1e293b; }
    [data-theme="dark"] .booking-modal-content { background: #1e293b; }
    [data-theme="dark"] nav {
      background: rgba(15, 23, 42, 0.85);
      border-color: rgba(255, 255, 255, 0.08);
    }
    [data-theme="dark"] .nav-links {
      background: rgba(15, 23, 42, 0.97);
      border-color: rgba(255,255,255,0.08);
    }
    [data-theme="dark"] .nav-links a { color: var(--text-muted); }
    [data-theme="dark"] .nav-links a:hover,
    [data-theme="dark"] .nav-links a.active { color: var(--accent); }
    [data-theme="dark"] .nav-logo { color: var(--text-main); }
    [data-theme="dark"] .blob-1 { background: #7c3aed; opacity: 0.5; }
    [data-theme="dark"] .blob-2 { background: #1d4ed8; opacity: 0.45; }
    [data-theme="dark"] .blob-3 { background: #2563eb; opacity: 0.4; }
    [data-theme="dark"] .skill-track { background: rgba(255,255,255,0.08); }
    [data-theme="dark"] .accordion-header:hover { background: rgba(96,165,250,0.05); }
    [data-theme="dark"] .accordion-item { border-color: rgba(255,255,255,0.06); }
    [data-theme="dark"] section + section { border-color: rgba(255,255,255,0.06); }
    [data-theme="dark"] .calendar-day {
      background: rgba(255,255,255,0.03);
      border-color: rgba(255,255,255,0.07);
    }
    [data-theme="dark"] .calendar-day:hover:not(.other-month):not(.blocked) {
      background: rgba(96,165,250,0.08);
    }
    [data-theme="dark"] .calendar-nav button {
      background: #1e293b;
      border-color: rgba(255,255,255,0.1);
      color: var(--text-main);
    }
    [data-theme="dark"] .calendar-nav button:hover {
      background: rgba(96,165,250,0.08);
    }
    [data-theme="dark"] .calendar-legend { border-color: rgba(255,255,255,0.06); }
    [data-theme="dark"] .form-control {
      background: #253047;
      border-color: rgba(255,255,255,0.1);
      color: var(--text-main);
    }
    [data-theme="dark"] .form-control:focus {
      border-color: var(--accent);
      background: #2a3a55;
      box-shadow: 0 0 0 4px rgba(96,165,250,0.15);
    }
    [data-theme="dark"] .form-control::placeholder { color: #475569; }
    [data-theme="dark"] table { background: #1e293b; }
    [data-theme="dark"] th {
      background: rgba(96,165,250,0.06);
      color: var(--text-muted);
    }
    [data-theme="dark"] td, [data-theme="dark"] th { border-color: rgba(255,255,255,0.05); }
    [data-theme="dark"] td:first-child { color: var(--text-main); }
    [data-theme="dark"] footer { border-color: rgba(255,255,255,0.06); }
    [data-theme="dark"] .nav-submenu {
      background: #1e293b;
      border-color: rgba(255,255,255,0.08);
      box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    }
    [data-theme="dark"] .nav-submenu a { color: var(--text-main); }
    [data-theme="dark"] .nav-submenu a:hover { background: rgba(96,165,250,0.08); }
    [data-theme="dark"] .booking-modal { background: rgba(0,5,20,0.8); }
    [data-theme="dark"] .booking-modal-header { border-color: rgba(255,255,255,0.08); }
    [data-theme="dark"] .booking-modal-footer {
      border-color: rgba(255,255,255,0.08);
      background: rgba(255,255,255,0.02);
    }
    [data-theme="dark"] .booking-option { border-color: rgba(255,255,255,0.1); }
    [data-theme="dark"] .booking-option:hover { background: rgba(96,165,250,0.06); }
    [data-theme="dark"] .selected-item {
      background: rgba(96,165,250,0.06);
      border-color: rgba(96,165,250,0.2);
    }
    [data-theme="dark"] .btn-outline {
      background: transparent;
      border-color: var(--accent);
      color: var(--accent);
    }
    [data-theme="dark"] .btn-outline:hover { background: rgba(96,165,250,0.1); }
    [data-theme="dark"] tbody tr:nth-child(1):hover { background: #3d2b18; }
    [data-theme="dark"] tbody tr:nth-child(2):hover { background: #182d3d; }
    [data-theme="dark"] tbody tr:nth-child(3):hover { background: #28183d; }
    [data-theme="dark"] tbody tr:nth-child(4):hover { background: #183d28; }
    [data-theme="dark"] tbody tr:nth-child(5):hover { background: #3d181d; }
    [data-theme="dark"] .cert-card { background: #1e293b; }

    /* ── Theme Toggle ── */
    .theme-toggle {
      background: none;
      border: 1px solid rgba(0,0,0,0.08);
      border-radius: 8px;
      padding: 5px 9px;
      cursor: pointer;
      font-size: 15px;
      line-height: 1;
      transition: all 0.2s;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-left: 6px;
      flex-shrink: 0;
    }
    [data-theme="dark"] .theme-toggle { border-color: rgba(255,255,255,0.12); }
    .theme-toggle:hover { background: rgba(0,102,204,0.06); transform: translateY(-1px); }

    /* ── Mobile Nav Slide-in ── */
    @media (max-width: 768px) {
      .nav-links.open {
        animation: navSlideDown 0.22s cubic-bezier(0.2, 0.8, 0.2, 1) both;
      }
      @keyframes navSlideDown {
        from { opacity: 0; transform: translateY(-6px); }
        to   { opacity: 1; transform: translateY(0); }
      }
      .mobile-toggle { transition: transform 0.2s ease; }
      .mobile-toggle.active { transform: rotate(90deg); }
    }

    /* ── Certificate Cards ── */
    .cert-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 18px;
      margin: 28px 0;
    }
    .cert-card {
      background: white;
      border-radius: 16px;
      padding: 26px 22px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      gap: 8px;
      position: relative;
      overflow: hidden;
    }
    .cert-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), var(--accent-soft));
      border-radius: 3px 3px 0 0;
    }
    .cert-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
    .cert-icon { font-size: 34px; margin-bottom: 2px; }
    .cert-name { font-size: 15px; font-weight: 700; color: var(--text-main); line-height: 1.3; }
    .cert-issuer { font-size: 13px; color: var(--text-muted); }
    .cert-status {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.07em;
      padding: 3px 9px;
      border-radius: 999px;
      margin-top: 4px;
      width: fit-content;
    }
    .cert-status.available { background: rgba(52,199,89,0.1); color: #166534; }
    [data-theme="dark"] .cert-status.available { background: rgba(52,199,89,0.15); color: #4ade80; }
    .cert-status.pending { background: rgba(0,102,204,0.08); color: var(--accent); }
    .cert-link {
      font-size: 12px;
      color: var(--accent);
      text-decoration: none;
      font-weight: 600;
      margin-top: 4px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      pointer-events: none;
      opacity: 0.45;
    }
    .cert-link.active { pointer-events: auto; opacity: 1; }
    .cert-link.active:hover { text-decoration: underline; }

    /* ── Code Login (Stammkunden) ── */
    .access-tabs {
      display: flex;
      gap: 0;
      background: rgba(0,0,0,0.04);
      border-radius: 12px;
      padding: 4px;
      margin-bottom: 24px;
    }
    [data-theme="dark"] .access-tabs { background: rgba(255,255,255,0.05); }
    .access-tab {
      flex: 1;
      text-align: center;
      padding: 9px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: 9px;
      cursor: pointer;
      transition: all 0.2s;
      user-select: none;
    }
    .access-tab.active {
      background: white;
      color: var(--text-main);
      box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    }
    [data-theme="dark"] .access-tab.active { background: #253047; }
    .access-panel { display: none; }
    .access-panel.active { display: block; }
    .code-input-wrap { display: flex; gap: 10px; margin-top: 4px; }
    .code-input-wrap input {
      flex: 1;
      font-size: 18px;
      letter-spacing: 0.18em;
      text-align: center;
      font-weight: 700;
      text-transform: uppercase;
    }
    .code-error {
      color: #dc2626;
      font-size: 13px;
      font-weight: 600;
      margin-top: 10px;
      display: none;
      padding: 10px 14px;
      background: rgba(220,38,38,0.06);
      border-radius: 8px;
    }

    /* ── Mobile Calendar: vertikale Liste ── */
    @media (max-width: 600px) {
      .calendar-weekdays { display: none; }
      .calendar-grid {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .calendar-day {
        aspect-ratio: unset;
        min-height: auto;
        flex-direction: row;
        align-items: center;
        padding: 12px 16px;
        gap: 14px;
        justify-content: flex-start;
      }
      .calendar-day .day-number { font-size: 15px; min-width: 22px; }
      .calendar-day .day-label {
        font-size: 12px;
        color: var(--text-muted);
        font-weight: 500;
        flex: 1;
      }
      .calendar-day .day-status {
        flex-direction: row;
        gap: 4px;
        min-width: 60px;
      }
      .calendar-day .status-bar { height: 10px; border-radius: 5px; }
      .calendar-day.other-month { display: none; }
    }



/* Lucide Icons Integration */
.lucide {
  width: 24px;
  height: 24px;
  stroke-width: 2px;
  color: var(--accent);
  vertical-align: middle;
}
.card-icon .lucide {
  width: 32px;
  height: 32px;
  margin-bottom: 8px;
}
.btn .lucide {
  width: 18px;
  height: 18px;
  margin-right: 8px;
  color: currentColor;
}

/* Fix für Erfolgsmeldungen */
.form-success.show {
  display: block !important;
  opacity: 1 !important;
  animation: fadeIn 0.3s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Animation für pending Reservierungen */
@keyframes bluePulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.pulsing-blue {
  background: var(--accent-soft) !important;
  animation: bluePulse 2s infinite ease-in-out;
}

.status-bar.my-confirmed {
  background: #004c99 !important; /* Dunkelblau für bestätigt */
}

.status-bar.my-pending {
  background: var(--accent-soft) !important;
}

/* Explicit styles for own bookings */
.status-bar.my-confirmed {
  background: #004c99 !important; /* Deep Blue */
  box-shadow: 0 0 5px rgba(0,76,153,0.3);
}

.status-bar.my-pending {
  background: #60a5fa !important; /* Soft Blue */
  animation: bluePulse 2s infinite ease-in-out;
}

.calendar-day.has-selection {
  border-color: #0066cc !important;
  background: rgba(0, 102, 204, 0.05) !important;
}

/* Grey status for blocked/past days */
.status-bar.grey {
  background: #d1d1d6 !important;
  opacity: 0.6;
}

[data-theme="dark"] .status-bar.grey {
  background: #3a3a3c !important;
}

.calendar-day.blocked {
  background: rgba(0, 0, 0, 0.03);
  cursor: not-allowed;
}

[data-theme="dark"] .calendar-day.blocked {
  background: rgba(255, 255, 255, 0.02);
}