:root {
    --bg-dark: #0a0a0b;
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;

    /* Clay-like variables */
    --clay-base: #18181b;
    --clay-highlight: rgba(255, 255, 255, 0.08);
    --clay-shadow: rgba(0, 0, 0, 0.9);
    --clay-inset-light: rgba(255, 255, 255, 0.04);
    --clay-inset-dark: rgba(0, 0, 0, 0.6);

    /* Accent color for actionable elements */
      --accent: #3b82f6;
  }

  /* Chrome, Edge, Safari */
  ::-webkit-scrollbar {
      width: 10px;
      height: 10px;
  }

  ::-webkit-scrollbar-track {
      background: #384043;
      border-radius: 12px;
  }

  ::-webkit-scrollbar-thumb {
      background: #0a0a0b;
      border-radius: 12px;
      border: 3px solid #384043;
  }

  ::-webkit-scrollbar-thumb:hover {
      background: #1a2124;
  }

  /* Firefox */
  * {
      scrollbar-width: auto;
      scrollbar-color: #0a0a0b #384043;
  }

  html {
        scroll-behavior: auto !important;
    }

    ::selection {
        background: #579bd3;
        color: #e2e2e2;
    }

  * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    }

  body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
      Arial, sans-serif;
    overflow-x: hidden;
    line-height: 1.5;
  }

  /* Clinical SaaS Grid Overlay */
  .grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(
        rgba(255, 255, 255, 0.02) 1px,
        transparent 1px
      ),
      linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    pointer-events: none;
  }

  /* Typography */
  h1,
  h2 {
    font-weight: 500;
    letter-spacing: -0.03em;
  }

  a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
  }
  a:hover {
    color: var(--text-muted);
  }

  /* Navigation */
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: linear-gradient(to bottom, rgba(10, 10, 11, 0.9), transparent);
    backdrop-filter: blur(10px);
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.05em;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--clay-base);
    padding: 0.5rem 1rem 0.5rem 2rem;
    border-radius: 40px;
    box-shadow: 4px 4px 10px var(--clay-shadow),
      inset 1px 1px 2px var(--clay-inset-light),
      inset -1px -1px 2px var(--clay-inset-dark);
    border: 1px solid rgba(255, 255, 255, 0.02);
  }

  /* Clay-like Chunky Buttons */
  .btn {
    padding: 0.6rem 1.2rem;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    color: var(--bg-dark);
    background: var(--text-main);
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .chunky-btn {
    box-shadow: 0px 4px 0px rgba(161, 161, 170, 0.4),
      /* Chunky bottom edge */ 0px 6px 10px rgba(0, 0, 0, 0.4),
      inset 0px -2px 5px rgba(0, 0, 0, 0.1),
      inset 0px 2px 5px rgba(255, 255, 255, 0.8);
  }
  .chunky-btn:active {
    transform: translateY(4px);
    box-shadow: 0px 0px 0px rgba(161, 161, 170, 0.4),
      0px 2px 5px rgba(0, 0, 0, 0.4), inset 0px -1px 2px rgba(0, 0, 0, 0.1);
  }
  .chunky-btn:hover{
    background: #1c1c1e;
  }

  .menu-btn {
    background: var(--clay-base);
    color: var(--text-main);
    box-shadow: 0px 4px 0px #09090a, 0px 6px 10px rgba(0, 0, 0, 0.6),
      inset 1px 1px 2px var(--clay-inset-light);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  /* Hero Section */
  .hero {
    padding: 12rem 2rem 4rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .chunky-badge {
    background: var(--clay-base);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 4px 4px 8px var(--clay-shadow),
      inset 2px 2px 4px var(--clay-inset-light),
      inset -2px -2px 4px var(--clay-inset-dark);
  }

  .hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
  }
  .hero p {
    color: var(--text-muted);
    max-width: 550px;
    margin-bottom: 15px;
  }

  /* 3D Gallery Section */
  .gallery-container {
    position: relative;
    height: 300vh; /* Scroll length */
    width: 100%;
  }

  .scene {
    position: sticky;
    top: 0;
    height: 100vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1200px;
    overflow: hidden;
  }

  .sphere {
    position: relative;
    width: 0;
    height: 0;
    transform-style: preserve-3d;
  }

  /* Clay Card Styling */
  .clay-card {
    position: absolute;
    width: 160px;
    height: 220px;
    left: -80px;
    top: -110px;
    background: var(--clay-base);
    border-radius: 16px;
    padding: 8px;
    transform-style: preserve-3d;
    backface-visibility: visible;
    border: 1px solid rgba(255, 255, 255, 0.03);
    /* Matte, chunky clay shadow */
    box-shadow: 8px 8px 16px var(--clay-shadow),
      -4px -4px 10px rgba(255, 255, 255, 0.02),
      inset 3px 3px 6px var(--clay-inset-light),
      inset -3px -3px 6px var(--clay-inset-dark);
    transition: filter 0.4s ease;
  }

  .clay-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
    filter: grayscale(80%) brightness(0.6);
    transition: all 0.4s ease;
    box-shadow: inset 0px 0px 10px rgba(0, 0, 0, 0.8);
  }

  .clay-card.active-card {
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.1));
  }
  .clay-card.active-card img {
    filter: grayscale(0%) brightness(1);
  }

  /* Floating Text Side Panels */
  .floating-text {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 300px;
    z-index: 10;
    position: sticky;
    margin-left: 10%;
  }
  .floating-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.8);
  }
  .floating-text p {
    color: var(--text-muted);
    font-size: 0.9rem;
  }

  .network-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
  }

  /* Journey Section */
  .journey-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: radial-gradient(circle at center, #111113 0%, var(--bg-dark) 70%);
  }

  .journey-content {
    text-align: center;
    z-index: 2;
    background: rgba(10, 10, 11, 0.6);
    padding: 3rem;
    border-radius: 24px;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  }

  .journey-content h2 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
  }

  .journey-content p {
    color: var(--text-muted);
    margin-bottom: 2rem;
  }

  .large-btn {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
    border-radius: 40px;
  }

  .constellation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
  }

  .constellation-card {
    position: absolute;
    width: 100px;
    height: 140px;
    opacity: 0.5;
  }

  @media (max-width: 768px) {
    .nav-links {
      display: none;
    }
    .hero h1 {
      font-size: 2.5rem;
    }
    .floating-text {
      position: absolute;
      top: 80%;
      margin-left: 5%;
      width: 90%;
      text-align: center;
    }
    .clay-card {
      width: 120px;
      height: 160px;
      left: -60px;
      top: -80px;
    }
  }

  /* --- MODAL OVERLAY --- */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(5, 5, 6, 0.8);
      backdrop-filter: blur(8px);
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 20px;
      z-index: 1000;
      
      /* Hidden by default */
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }

    /* Visible State */
    .modal-overlay.is-active {
      opacity: 1;
      pointer-events: auto;
    }

    /* --- CLAYMORPHIC MODAL CARD --- */
    .modal-card {
      background-color: var(--clay-base);
      width: 100%;
      max-width: 420px;
      padding: 2.5rem;
      border-radius: 24px;
      position: relative;
      
      box-shadow: 
        0 20px 40px var(--clay-shadow),
        inset 2px 2px 4px var(--clay-highlight),
        inset -2px -2px 4px var(--clay-inset-dark);
      
      text-align: center;
      
      /* Animation entry state */
      transform: scale(0.9) translateY(10px);
      transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .modal-overlay.is-active .modal-card {
      transform: scale(1) translateY(0);
    }

    /* Close Button Cross */
    .btn-close {
      position: absolute;
      top: 1.5rem;
      right: 1.5rem;
      background: none;
      border: none;
      color: var(--text-muted);
      font-size: 1.5rem;
      cursor: pointer;
      line-height: 1;
      transition: color 0.2s;
    }

    .btn-close:hover {
      color: var(--text-main);
    }

    /* --- FORM STYLING --- */
    .modal-header h1 {
      font-size: 1.75rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
      letter-spacing: -0.025em;
    }

    .modal-header p {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-bottom: 2rem;
    }

    .form-group {
      margin-bottom: 1.25rem;
      text-align: left;
    }

    .form-group label {
      display: block;
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
      font-weight: 500;
    }

    .form-input {
      width: 100%;
      background-color: var(--bg-dark);
      border: none;
      outline: none;
      padding: 0.85rem 1rem;
      border-radius: 12px;
      color: var(--text-main);
      font-size: 0.95rem;
      transition: all 0.2s ease;
      box-shadow: 
        inset 2px 2px 5px var(--clay-inset-dark),
        inset -1px -1px 2px var(--clay-inset-light);
    }

    .form-input:focus {
      box-shadow: 
        inset 2px 2px 5px var(--clay-inset-dark),
        inset -1px -1px 2px var(--clay-inset-light),
        0 0 0 2px var(--accent);
    }

    .form-options {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      margin-bottom: 1.5rem;
    }

    .remember-me {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      color: var(--text-muted);
      cursor: pointer;
    }

    .remember-me input {
      accent-color: var(--accent);
    }

    .forgot-link {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s;
    }

    .forgot-link:hover {
      color: var(--text-main);
    }

    .btn-submit {
      width: 100%;
      background-color: var(--clay-base);
      color: var(--text-main);
      border: none;
      padding: 0.85rem;
      border-radius: 12px;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.15s ease;
      box-shadow: 
        0 4px 10px var(--clay-shadow),
        inset 2px 2px 3px var(--clay-highlight),
        inset -2px -2px 3px var(--clay-inset-dark);
    }

    .btn-submit:hover {
      transform: translateY(-1px);
      box-shadow: 
        0 6px 14px var(--clay-shadow),
        inset 2px 2px 3px var(--clay-highlight),
        inset -2px -2px 3px var(--clay-inset-dark);
    }

    .btn-submit:active {
      transform: translateY(1px);
      box-shadow: 
        0 2px 4px var(--clay-shadow),
        inset 2px 2px 4px var(--clay-inset-dark),
        inset -1px -1px 2px var(--clay-inset-light);
    }

    .modal-footer {
      margin-top: 2rem;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .modal-footer a {
      color: var(--text-main);
      text-decoration: none;
      font-weight: 500;
    }

    .modal-footer a:hover {
      text-decoration: underline;
    }