:root {
      --green:        #3CB85C;
      --green-light:  #6DD68A;
      --green-dim:    #1C7038;
      --green-dark:   #0D2B16;
      --black:        #060E08;
      --dark:         #0B180F;
      --surface:      #101E14;
      --surface-2:    #162419;
      --border:       rgba(60,184,92,0.16);
      --border-s:     rgba(60,184,92,0.30);
      --text:         #EDF5EF;
      --text-muted:   #7A9A82;
      --text-dim:     #3A5A42;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }

    body {
      background: var(--black);
      color: var(--text);
      font-family: 'DM Sans', sans-serif;
      font-weight: 300;
      line-height: 1.7;
      overflow-x: hidden;
    }

    /* Canvas particles */
    #bg-canvas {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      opacity: 0.35;
    }

    /* Navigation */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 200;
      padding: 0 5vw;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
      transition: background 0.5s, backdrop-filter 0.5s, border-color 0.5s;
      border-bottom: 1px solid transparent;
    }
    nav.scrolled {
      background: rgba(6,14,8,0.94);
      backdrop-filter: blur(18px);
      border-color: var(--border);
    }
    .nav-logo {
      font-family: 'Cormorant Garamond', serif;
      font-size: 1.35rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      color: var(--text);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .logo-mark {
      width: 40px; height: 40px;
      display: grid;
      place-items: center;
    }
    .logo-mark img {
      max-width: 100%;
      height: auto;
    }
  
    .nav-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.8rem;
      font-weight: 400;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      transition: color 0.3s;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--green);
    }
    .nav-cta {
      border: 1px solid var(--green) !important;
      color: var(--green) !important;
      padding: 8px 22px;
      transition: background 0.3s, color 0.3s !important;
    }
    .nav-cta:hover {
      background: var(--green) !important;
      color: var(--black) !important;
    }

    /* Dropdown */
    .dropdown {
      position: relative;
      display: inline-block;
    }
    .dropbtn {
      cursor: pointer;
    }
    .dropdown-content {
      display: none;
      position: absolute;
      background: var(--dark);
      min-width: 220px;
      box-shadow: 0 8px 16px rgba(0,0,0,0.3);
      z-index: 1;
      border: 1px solid var(--border);
      border-radius: 12px;
      top: 100%;
      left: 0;
      margin-top: 0.5rem;
    }
    .dropdown-content a {
      color: var(--text-muted);
      padding: 12px 16px;
      text-decoration: none;
      display: block;
      font-size: 0.8rem;
      letter-spacing: 0.05em;
      text-transform: none;
      border-bottom: 1px solid var(--border);
    }
    .dropdown-content a:last-child { border-bottom: none; }
    .dropdown-content a:hover {
      background: var(--surface);
      color: var(--green);
    }
    .dropdown:hover .dropdown-content { display: block; }

    /* Hero */
    .hero-product {
      position: relative;
      z-index: 1;
      min-height: 70vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 0 5vw;
      margin-top: 76px;
      background: linear-gradient(115deg, rgba(6,14,8,0.92), rgba(6,14,8,0.85)), url('/img/professional-engineers-analyzing-automated-factory-system.jpg');
      background-size: cover;
      background-position: center;
    }
    .hero-content {
      max-width: 800px;
      margin: 0 auto;
    }
    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-size: 0.75rem;
      font-weight: 500;
      letter-spacing: 0.25em;
      text-transform: uppercase;
      color: var(--green);
      margin-bottom: 1.5rem;
    }
    .hero-eyebrow::before {
      content: '';
      width: 40px;
      height: 1px;
      background: var(--green);
    }
    .hero-product h1 {
      font-family: 'Cormorant Garamond', serif;
      font-size: clamp(3rem, 6vw, 5rem);
      font-weight: 300;
      line-height: 1.1;
      margin-bottom: 1.2rem;
    }
    .hero-product h1 span {
      color: var(--green);
      font-style: italic;
    }
    .hero-product p {
      font-size: 1.1rem;
      color: var(--text-muted);
    }

    /* Stats Board */
    .stats-board {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1rem;
      background: var(--dark);
      border-radius: 28px;
      padding: 1.5rem;
      margin-bottom: 3rem;
      border: 1px solid var(--border);
    }
    .stat-item {
      text-align: center;
    }
    .stat-number {
      font-family: 'Syne', sans-serif;
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--green);
    }
    .stat-label {
      font-size: 0.7rem;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--text-muted);
    }

    /* Sections */
    section {
      position: relative;
      z-index: 1;
      padding: 5rem 0;
    }
    .section-inner {
      max-width: 1300px;
      margin: 0 auto;
      padding: 0 5vw;
    }
    .section-light {
      background: var(--surface);
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 3rem auto;
    }
    .section-eyebrow {
      font-size: 0.72rem;
      letter-spacing: 0.25em;
      text-transform: uppercase;
      color: var(--green);
      margin-bottom: 1rem;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .section-eyebrow::before {
      content: '';
      width: 28px;
      height: 1px;
      background: var(--green);
    }
    h2 {
      font-family: 'Cormorant Garamond', serif;
      font-size: clamp(2rem, 3.5vw, 3rem);
      font-weight: 300;
      line-height: 1.2;
      color: var(--text);
      margin-bottom: 1rem;
    }
    h2 em {
      font-style: italic;
      color: var(--green);
    }

    /* Features Grid */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      margin-top: 2rem;
    }
    .feature-card {
      background: var(--dark);
      border: 1px solid var(--border);
      border-radius: 28px;
      padding: 2rem;
      transition: all 0.3s;
    }
    .feature-card:hover {
      border-color: var(--green-dim);
      transform: translateY(-4px);
    }
    .feature-card i {
      font-size: 2.5rem;
      color: var(--green);
      margin-bottom: 1rem;
    }
    .feature-card h4 {
      font-family: 'Syne', sans-serif;
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
    }
    .feature-card p {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    /* Mining Impact Grid (How It Applies) */
    .mining-impact {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      margin-top: 2rem;
    }
    .impact-card {
      background: var(--surface);
      border-radius: 20px;
      padding: 1.5rem;
      text-align: center;
      border: 1px solid var(--border);
    }
    .impact-card i {
      font-size: 2rem;
      color: var(--green);
      margin-bottom: 0.8rem;
    }
    .impact-card h4 {
      font-family: 'Syne', sans-serif;
      font-size: 1rem;
      margin-bottom: 0.5rem;
    }

    /* Workflow Steps */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 1.5rem;
      margin-top: 2rem;
    }
    .workflow-step {
      text-align: center;
    }
    .step-number {
      width: 48px;
      height: 48px;
      background: var(--green);
      color: var(--black);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      font-size: 1.2rem;
      margin: 0 auto 1rem;
    }

    /* Modules Grid */
    .modules-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      margin-top: 2rem;
    }
    .module-card {
      background: var(--dark);
      border: 1px solid var(--border);
      border-radius: 28px;
      padding: 2rem;
    }
    .module-card h4 {
      font-family: 'Syne', sans-serif;
      font-size: 1.2rem;
      margin-bottom: 1rem;
      color: var(--green);
    }
    .module-card ul {
      list-style: none;
    }
    .module-card ul li {
      margin-bottom: 0.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .module-card ul li i {
      color: var(--green);
      font-size: 0.8rem;
    }

    /* Two column for mining challenges */
    .two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      margin: 2rem 0;
    }

    /* CTA Banner */
    .cta-banner {
      background: var(--green-dark);
      border-radius: 32px;
      padding: 3rem;
      text-align: center;
      border: 1px solid var(--border);
    }
    .btn-primary {
      background: var(--green);
      color: var(--black);
      border: none;
      padding: 12px 32px;
      font-family: 'Syne', sans-serif;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      text-decoration: none;
      display: inline-block;
      border-radius: 40px;
      transition: background 0.3s, transform 0.2s;
      margin-top: 1rem;
    }
    .btn-primary:hover {
      background: var(--green-light);
      transform: translateY(-2px);
    }

 

    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 1024px) {
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .mining-impact { grid-template-columns: repeat(2, 1fr); }
      .modules-grid { grid-template-columns: 1fr; }
      .workflow-steps { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .mobile-menu { display: block; }
      .stats-board { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
      .features-grid { grid-template-columns: 1fr; }
      .mining-impact { grid-template-columns: 1fr; }
      .workflow-steps { grid-template-columns: 1fr; }
      .two-col { grid-template-columns: 1fr; }
    }
    .mobile-menu {
      display: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--green);
    }
    @media (max-width: 768px) {
      .mobile-menu { display: block; }
      .nav-links {
        flex-direction: column;
        background: var(--dark);
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border);
        display: none;
      }
      .nav-links.active { display: flex; }
      .dropdown-content {
        position: static;
        box-shadow: none;
        border: none;
        background: transparent;
        padding-left: 1rem;
      }
      .dropdown .dropbtn i { display: none; }
    }