: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 background pattern */
  #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 #20342a;
    background-color: #0b66390f;
}
  nav.scrolled {
    background: rgba(6,14,8,0.94);
    backdrop-filter: blur(18px);
    border-color: var(--border);
  }





  .nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.3s;
  }
  .nav-links a:hover { 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; }

  /* Hero Section */
  .hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 0 5vw;
    gap: 4rem;
    overflow: hidden;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-position: center 35%;
    background-repeat: no-repeat;
    transition: opacity 0.6s;
  }
  /* default hero image (mining scene) */
  .hero-bg {
    background-image: url('/img/vladimir-patkachakov-Mx6Xmf_nbRk-unsplash.jpg');
  }
  .hero-bg-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
      105deg,
      rgba(6,14,8,0.92) 0%,
      rgba(6,14,8,0.78) 50%,
      rgba(6,14,8,0.55) 100%
    );
  }

  /* Upload controls */
  .hero-bg-upload {
    position: absolute;
    bottom: 28px;
    right: 5vw;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border: 1px solid rgba(60,184,92,0.4);
    background: rgba(6,14,8,0.65);
    backdrop-filter: blur(10px);
    color: var(--green);
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s, border-color 0.3s;
  }
  .hero-bg-upload:hover {
    background: rgba(60,184,92,0.12);
    border-color: var(--green);
  }
  .hero-bg-upload svg {
    width: 14px; height: 14px;
    stroke: var(--green);
    fill: none;
    stroke-width: 2;
  }
  #heroImgInput { display: none; }

  .hero-bg-reset {
    position: absolute;
    bottom: 28px;
    right: calc(5vw + 180px);
    z-index: 20;
    display: none;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border: 1px solid rgba(255,80,80,0.35);
    background: rgba(6,14,8,0.65);
    backdrop-filter: blur(10px);
    color: #FF6060;
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s;
  }
  .hero-bg-reset:hover { background: rgba(255,80,80,0.12); }
  .hero-bg-reset.visible { display: flex; }

  .hero-content {
    position: relative;
    z-index: 10;
    padding-top: 76px;
  }

  .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: 2rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.2s forwards;
  }
  .hero-eyebrow::before {
    content: '';
    width: 40px; height: 1px;
    background: var(--green);
  }

  .hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(3.5rem, 6vw, 6.5rem);
    font-weight: 300;
    line-height: 1.05;
    letter-spacing: -0.01em;
    margin-bottom: 1.8rem;
    opacity: 0;
    animation: fadeUp 0.9s 0.35s forwards;
  }
  .hero-title em { font-style: italic; color: var(--green); }

  .hero-desc {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 420px;
    margin-bottom: 2.8rem;
    opacity: 0;
    animation: fadeUp 0.9s 0.5s forwards;
  }

  .hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.9s 0.65s forwards;
  }

  .btn-primary {
    background: var(--green);
    color: var(--black);
    border: none;
    padding: 14px 36px;
    font-family: 'Syne', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.3s, transform 0.3s;
  }
  .btn-primary:hover { background: var(--green-light); transform: translateY(-2px); }

  .btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-s);
    padding: 14px 36px;
    font-family: 'Syne', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: border-color 0.3s, color 0.3s, transform 0.3s;
  }
  .btn-ghost:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }

  .hero-visual {
    position: relative;
    z-index: 10;
    padding-top: 76px;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    animation: fadeIn 1.2s 0.5s forwards;
  }

  .hero-card-stack {
    position: relative;
    width: 100%;
    max-width: 400px;
  }

  .stat-card {
    background: rgba(16,30,20,0.75);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    padding: 26px 30px;
    position: relative;
    transition: border-color 0.3s;
  }
  .stat-card:hover { border-color: var(--border-s); }
  .stat-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--green);
  }

  .stat-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.8rem;
    font-weight: 300;
    color: var(--green);
    line-height: 1;
  }
  .stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 5px;
  }

  .hero-badge {
    position: absolute;
    top: 50%;
    right: -28px;
    transform: translateY(-50%);
    width: 100px; height: 100px;
    background: var(--green);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: rotateBadge 20s linear infinite;
  }
  .hero-badge span {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.7rem;
    font-weight: 600;
    color: var(--black);
    line-height: 1;
  }
  .hero-badge small {
    font-size: 0.55rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--black);
    opacity: 0.7;
  }

  .scroll-line {
    position: absolute;
    bottom: 40px;
    left: 5vw;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim);
    opacity: 0;
    animation: fadeIn 1s 1.2s forwards;
  }
  .scroll-line::before {
    content: '';
    width: 1px; height: 50px;
    background: linear-gradient(to bottom, transparent, var(--green));
    animation: scrollPulse 2s ease-in-out infinite;
  }

  /* Sections */
  section { position: relative; z-index: 1; }
  .section-inner { max-width: 1300px; margin: 0 auto; padding: 0 5vw; }

  .section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 4rem;
    gap: 2rem;
    flex-wrap: wrap;
  }

  .section-eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .section-eyebrow::before {
    content: '';
    width: 28px; height: 1px;
    background: var(--green);
  }

  .section-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2.2rem, 3.5vw, 3.4rem);
    font-weight: 300;
    line-height: 1.15;
  }
  .section-title em { font-style: italic; color: var(--green); }
  .section-desc { color: var(--text-muted); font-size: 0.95rem; max-width: 360px; line-height: 1.8; }

  /* Marquee */
  .marquee-strip {
    padding: 16px 0;
    background: var(--green-dark);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    z-index: 1;
  }
  .marquee-inner { display: inline-flex; animation: marquee 28s linear infinite; }
  .marquee-item {
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--green);
    padding: 0 2.4rem;
  }
  .marquee-item::after {
    content: '◆';
    margin-left: 2.4rem;
    font-size: 0.45rem;
    opacity: 0.4;
  }

  /* Solutions Grid */
  .solutions { padding: 8rem 0; }
  .solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  .solution-card {
    background: var(--dark);
    padding: 2.6rem 1.8rem;
    position: relative;
    overflow: hidden;
    transition: background 0.4s;
  }
  .solution-card:hover { background: var(--surface); }
  .solution-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: var(--green);
    transform: scaleX(0);
    transition: transform 0.4s;
  }
  .solution-card:hover::after { transform: scaleX(1); }
  .sol-icon {
    width: 50px; height: 50px;
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    margin-bottom: 1.6rem;
  }
  .sol-icon svg { width: 22px; height: 22px; stroke: var(--green); fill: none; stroke-width: 1.5; }
  .sol-num {
    position: absolute;
    top: 1.2rem; right: 1.2rem;
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.4rem;
    font-weight: 300;
    color: var(--text-dim);
  }
  .sol-title {
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
  }
  .sol-desc { font-size: 0.84rem; color: var(--text-muted); line-height: 1.75; }
  .sol-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 1.2rem; }
  .sol-tag {
    font-size: 0.66rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 3px 9px;
    border: 1px solid var(--border);
    color: var(--text-dim);
    transition: border-color 0.3s, color 0.3s;
  }
  .solution-card:hover .sol-tag { border-color: var(--green-dim); color: var(--green); }

  /* About, Industries, Features, Partners, Footer - same as original, concise */
  .about { padding: 8rem 0; background: var(--surface); }
  .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8rem; align-items: center; }
  .about-img-frame {
    width: 100%;
    aspect-ratio: 4/5;
    background: var(--surface-2);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .about-img-inner { text-align: center; }
  .about-img-icon {
    width: 76px; height: 76px;
    border: 1px solid var(--green);
    display: grid;
    place-items: center;
    margin: 0 auto 1rem;
  }
  .about-img-icon svg { width: 34px; height: 34px; stroke: var(--green); fill: none; stroke-width: 1; }
  .about-corner {
    position: absolute;
    bottom: -1px; right: -1px;
    width: 115px;
    background: var(--green);
    padding: 16px 18px;
  }
  .about-corner-num { font-family: 'Cormorant Garamond', serif; font-size: 2.1rem; font-weight: 600; color: var(--black); }
  .about-corner-label { font-size: 0.6rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--black); }
  .about-body { font-size: 0.95rem; color: var(--text-muted); margin-top: 1.4rem; line-height: 1.9; }
  .gold-divider { width: 56px; height: 1px; background: var(--green); margin: 1rem 0 2rem; }
  .pillars { border: 1px solid var(--border); }
  .pillar {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1rem 1.3rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.3s;
  }
  .pillar:last-child { border-bottom: none; }
  .pillar-dot { width: 6px; height: 6px; background: var(--green); flex-shrink: 0; }
  .pillar-text { font-size: 0.83rem; font-weight: 500; letter-spacing: 0.03em; }
  .industries { padding: 8rem 0; }
  .industries-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .industry-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2.6rem 2rem;
    transition: border-color 0.4s;
  }
  .industry-card:hover { border-color: var(--green); }
  .ind-icon {
    width: 56px; height: 56px;
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    margin-bottom: 1.6rem;
  }
  .ind-icon svg { width: 26px; height: 26px; stroke: var(--green); fill: none; stroke-width: 1.3; }
  .ind-title { font-family: 'Syne', sans-serif; font-size: 0.95rem; font-weight: 700; letter-spacing: 0.04em; margin-bottom: 0.8rem; }
  .ind-desc { font-size: 0.84rem; color: var(--text-muted); line-height: 1.8; }
  .features { padding: 8rem 0; background: var(--surface); }
  .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--border); background: var(--border); margin-top: 4rem; }
  .feature-item { background: var(--surface); padding: 2.6rem 2rem; transition: background 0.3s; }
  .feature-item:hover { background: var(--surface-2); }
  .feature-num { font-family: 'Cormorant Garamond', serif; font-size: 0.95rem; color: var(--green-dim); letter-spacing: 0.1em; margin-bottom: 0.9rem; }
  .feature-title { font-family: 'Syne', sans-serif; font-size: 0.88rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.7rem; }
  .feature-desc { font-size: 0.83rem; color: var(--text-muted); line-height: 1.8; }
  .partners { padding: 6rem 0; }
  .partners-row { display: flex; gap: 0; border: 1px solid var(--border); overflow: hidden; margin-top: 3rem; }
  .partner-item { flex: 1; padding: 2rem; display: flex; align-items: center; justify-content: center; border-right: 1px solid var(--border); transition: background 0.3s; }
  .partner-item:last-child { border-right: none; }
  .partner-name { font-family: 'Syne', sans-serif; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-dim); text-align: center; }
  .partner-item:hover .partner-name { color: var(--green); }
  .cta { padding: 10rem 0; text-align: center; position: relative; overflow: hidden; }
  .cta-title { font-family: 'Cormorant Garamond', serif; font-size: clamp(3rem, 5vw, 5.5rem); font-weight: 300; line-height: 1.1; margin-bottom: 1.4rem; }
  .cta-title em { font-style: italic; color: var(--green); }
  .cta-sub { color: var(--text-muted); font-size: 1rem; max-width: 480px; margin: 0 auto 2.8rem; }
  footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 5rem 5vw 3rem;
    position: relative;
    z-index: 1;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    max-width: 1300px;
    margin: 0 auto;
    padding-bottom: 4rem;
    border-bottom: 1px solid var(--border);
  }
  .footer-brand-name { font-family: 'Cormorant Garamond', serif; font-size: 1.25rem; font-weight: 600; margin-bottom: 0.3rem; }
  .footer-brand-tag { font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--green); margin-bottom: 1.1rem; }
  .footer-brand-desc { font-size: 0.83rem; color: var(--text-muted); line-height: 1.8; max-width: 270px; }
  .footer-col-title { font-family: 'Syne', sans-serif; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 1.3rem; }
  .footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
  .footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.83rem; transition: color 0.3s; }
  .footer-links a:hover { color: var(--green); }
  .footer-bottom {
    max-width: 1300px;
    margin: 3rem auto 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
  }
  .footer-copy { font-size: 0.76rem; color: var(--text-dim); }
  .footer-legal { display: flex; gap: 2rem; }
  .footer-legal a { font-size: 0.74rem; color: var(--text-dim); text-decoration: none; }
  .footer-legal a:hover { color: var(--green); }

  /* Animations */
  @keyframes fadeUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
  @keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
  @keyframes scrollPulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
  @keyframes rotateBadge { from { transform: translateY(-50%) rotate(0deg); } to { transform: translateY(-50%) rotate(360deg); } }
  .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
  .reveal.visible { opacity: 1; transform: translateY(0); }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }

  @media (max-width: 1100px) {
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .hero { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 768px) {
    .nav-links { display: none; }
    .industries-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .partners-row { flex-wrap: wrap; }
    .partner-item { flex: none; width: 50%; border-bottom: 1px solid var(--border); }
    .solutions-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-bg-reset { right: calc(5vw + 160px); }
  }
/* =========================
   ABOUT IMAGE SECTION
========================= */

.about-img-frame {
  position: relative;
  width: 100%;
  max-width: 560px;
  border-radius: 28px;
  overflow: hidden;
  background: #111;
  box-shadow: 0 25px 60px rgba(0,0,0,0.35);
}

/* IMAGE CONTAINER */
.about-img-inner {
  position: relative;
  width: 100%;
  height: 620px;
  overflow: hidden;
}

/* IMAGE */
.about-img-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s ease;
}

/* HOVER EFFECT */
.about-img-frame:hover img {
  transform: scale(1.05);
}

/* DARK OVERLAY */
.about-img-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0,0,0,0.55),
    rgba(0,0,0,0.10)
  );
  z-index: 1;
}

/* IMAGE LABEL */
.about-image-label {
  position: absolute;
  left: 28px;
  bottom: 28px;
  z-index: 2;

  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 500;
  color: #fff;

  letter-spacing: 0.05em;
}

/* FLOATING CARD */
.about-corner {
  position: absolute;
  right: 24px;
  bottom: 24px;

  z-index: 5;

  background: rgba(15,15,15,0.92);
  backdrop-filter: blur(10px);

  border: 1px solid rgba(255,255,255,0.08);

  padding: 18px 24px;
  border-radius: 18px;

  box-shadow: 0 12px 30px rgba(0,0,0,0.30);
}

/* NUMBER */
.about-corner-num {
  font-size: 2.4rem;
  font-weight: 700;
  color: #d4af37;
  line-height: 1;
}

/* LABEL */
.about-corner-label {
  margin-top: 6px;

  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);

  letter-spacing: 0.04em;
}

/* RESPONSIVE */
@media (max-width: 992px) {

  .about-img-inner {
    height: 520px;
  }

}

@media (max-width: 768px) {

  .about-img-inner {
    height: 420px;
  }

  .about-image-label {
    left: 20px;
    bottom: 20px;
    font-size: 1.1rem;
  }

  .about-corner {
    right: 16px;
    bottom: 16px;
    padding: 14px 18px;
  }

  .about-corner-num {
    font-size: 1.8rem;
  }

}