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

    :root {
      --black: #0a0a0a;
      --dark: #111214;
      --card: #16181c;
      --border: #2a2d33;
      --green: #a8f23b;
      --green-dim: #7dc42a;
      --white: #f5f5f3;
      --muted: #8a8f9a;
      --font-head: 'Syne', sans-serif;
      --font-body: 'DM Sans', sans-serif;
    }

    html { scroll-behavior: smooth; }

    body {
      background: var(--black);
      color: var(--white);
      font-family: var(--font-body);
      font-weight: 300;
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* ── NAVBAR ── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      display: flex; align-items: center; justify-content: space-between;
      padding: 1.1rem 5%;
      background: rgba(10,10,10,0.85);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
    }
    .logo { font-family: var(--font-head); font-size: 1.3rem; font-weight: 700; letter-spacing: -0.5px; }
    .logo span { color: var(--green); }
    .nav-links { display: flex; gap: 2.2rem; list-style: none; }
    .nav-links a { text-decoration: none; color: var(--white); font-size: 0.88rem; font-weight: 400; opacity: 0.75; transition: opacity 0.2s; }
    .nav-links a:hover { opacity: 1; }
    .btn { display: inline-block; padding: 0.55rem 1.4rem; border-radius: 6px; font-family: var(--font-body); font-size: 0.85rem; font-weight: 500; cursor: pointer; transition: all 0.2s; text-decoration: none; border: none; }
    .btn-green { background: var(--green); color: var(--black); }
    .btn-green:hover { background: #bfff55; transform: translateY(-1px); }
    .btn-outline { background: transparent; color: var(--white); border: 1px solid var(--border); }
    .btn-outline:hover { border-color: var(--green); color: var(--green); }
    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
    .hamburger span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: all 0.3s; }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ── HERO ── */
    .hero {
      min-height: 100vh;
      padding: 9rem 5% 5rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: center;
      gap: 4rem;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute; top: -200px; right: -200px;
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(168,242,59,0.12) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-badge {
      display: inline-block; font-size: 0.72rem; font-weight: 500; letter-spacing: 0.12em;
      text-transform: uppercase; color: var(--green); border: 1px solid rgba(168,242,59,0.35);
      padding: 0.3rem 0.85rem; border-radius: 50px; margin-bottom: 1.4rem;
    }
    .hero h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); /* reduced */
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 1.2rem;
}
    .hero h1 .accent { color: var(--green); display: block; }
    .hero p { color: var(--muted); font-size: 1rem; max-width: 440px; margin-bottom: 2rem; }
    .hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
    .hero-stats { display: flex; gap: 2.5rem; flex-wrap: wrap; }
    .stat-item .num { font-family: var(--font-head); font-size: 1.6rem; font-weight: 700; color: var(--white); }
    .stat-item .lbl { font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
    .hero-img-wrap {
      position: relative; border-radius: 18px; overflow: hidden;
      aspect-ratio: 4/3; background: var(--card);
    }
    .hero-img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .hero-img-badge {
      position: absolute; bottom: 1.2rem; right: 1.2rem;
      background: var(--green); color: var(--black);
      font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
      padding: 0.5rem 0.9rem; border-radius: 8px; text-transform: uppercase; letter-spacing: 0.05em;
    }

    /* ── SECTION SHARED ── */
    section { padding: 6rem 5%; }
    .section-label {
      font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase;
      color: var(--green); font-weight: 500; margin-bottom: 0.8rem;
    }
    .section-title {
      font-family: var(--font-head); font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 700; letter-spacing: -0.5px; margin-bottom: 1rem;
    }
    .section-sub { color: var(--muted); font-size: 0.95rem; max-width: 560px; }

    /* ── CHALLENGES ── */
    .challenges { background: var(--dark); }
    .challenges-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
    .challenges-img { border-radius: 16px; overflow: hidden; aspect-ratio: 4/3; background: var(--card); }
    .challenges-img img { width: 100%; height: 100%; object-fit: cover; }
    .challenges-content .section-title { margin-bottom: 1.4rem; }
    .challenge-item { display: flex; gap: 1rem; margin-bottom: 1.6rem; }
    .challenge-icon {
      width: 22px; height: 22px; min-width: 22px; border-radius: 50%;
      background: var(--green); display: flex; align-items: center; justify-content: center; margin-top: 3px;
    }
    .challenge-icon svg { width: 12px; height: 12px; fill: var(--black); }
    .challenge-item h4 { font-family: var(--font-head); font-size: 0.95rem; font-weight: 600; margin-bottom: 0.3rem; }
    .challenge-item p { color: var(--muted); font-size: 0.88rem; }

    /* ── APPROACH ── */
    .approach { text-align: center; }
    .approach-header { margin-bottom: 3rem; }
    .approach-img { border-radius: 18px; overflow: hidden; max-height: 400px; margin-bottom: 4rem; background: var(--card); }
    .approach-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-bottom: 4rem; }
    .feature-card {
      background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 1.6rem;
      text-align: left; transition: border-color 0.25s, transform 0.25s;
    }
    .feature-card:hover { border-color: var(--green); transform: translateY(-4px); }
    .feature-num { font-family: var(--font-head); font-size: 1.8rem; font-weight: 800; color: var(--green); margin-bottom: 0.6rem; }
    .feature-card h4 { font-family: var(--font-head); font-size: 0.92rem; font-weight: 600; margin-bottom: 0.5rem; }
    .feature-card p { color: var(--muted); font-size: 0.82rem; }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
    .metric-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 1.4rem; }
    .metric-val { font-family: var(--font-head); font-size: 2rem; font-weight: 800; color: var(--white); }
    .metric-lbl { font-size: 0.78rem; color: var(--muted); margin-top: 4px; }

    /* ── SERVICES ── */
    .services { background: var(--dark); }
    .services-header { text-align: center; margin-bottom: 3.5rem; }
    .services-header .section-sub { margin: 0 auto; }
    .services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
    .service-card {
      background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 2rem;
      transition: border-color 0.25s, transform 0.25s;
    }
    .service-card:hover { border-color: var(--green); transform: translateY(-4px); }
    .service-icon {
      width: 48px; height: 48px; background: rgba(168,242,59,0.12); border-radius: 12px;
      display: flex; align-items: center; justify-content: center; margin-bottom: 1.2rem;
    }
    .service-icon svg { width: 24px; height: 24px; stroke: var(--green); fill: none; stroke-width: 1.8; }
    .service-card h3 { font-family: var(--font-head); font-size: 1.05rem; font-weight: 600; margin-bottom: 0.6rem; }
    .service-card p { color: var(--muted); font-size: 0.88rem; }

    /* ── CONTACT ── */
    .contact { background: var(--black); }
    .contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 5rem; align-items: start; }
    .contact-info .section-title { margin-bottom: 1.2rem; }
    .contact-info p { color: var(--muted); font-size: 0.95rem; margin-bottom: 2.5rem; }
    .contact-detail { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.6rem; }
    .contact-detail-icon {
      width: 42px; height: 42px; min-width: 42px; background: rgba(168,242,59,0.1);
      border-radius: 10px; display: flex; align-items: center; justify-content: center;
    }
    .contact-detail-icon svg { width: 20px; height: 20px; stroke: var(--green); fill: none; stroke-width: 1.8; }
    .contact-detail h4 { font-size: 0.82rem; color: var(--muted); font-weight: 400; margin-bottom: 2px; }
    .contact-detail p { font-size: 0.93rem; color: var(--white); font-weight: 500; margin-bottom: 0; }
    .contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
    .form-group { display: flex; flex-direction: column; gap: 0.4rem; }
    .form-group label { font-size: 0.8rem; color: var(--muted); font-weight: 500; letter-spacing: 0.04em; }
    .form-group input, .form-group textarea, .form-group select {
      background: var(--card); border: 1px solid var(--border); border-radius: 10px;
      padding: 0.8rem 1rem; color: var(--white); font-family: var(--font-body); font-size: 0.9rem;
      transition: border-color 0.2s; outline: none; width: 100%;
    }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--green); }
    .form-group textarea { resize: vertical; min-height: 120px; }
    .form-group select option { background: var(--card); }
    .btn-submit {
      background: var(--green); color: var(--black); font-family: var(--font-head);
      font-size: 0.95rem; font-weight: 700; padding: 1rem 2rem; border-radius: 10px;
      border: none; cursor: pointer; transition: all 0.2s; align-self: flex-start;
    }
    .btn-submit:hover { background: #bfff55; transform: translateY(-2px); }

    /* ── FOOTER ── */
    footer {
      background: var(--dark); border-top: 1px solid var(--border);
      padding: 4rem 5% 2rem;
    }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
    .footer-brand p { color: var(--muted); font-size: 0.88rem; margin: 1rem 0 1.6rem; max-width: 280px; }
    .footer-socials { display: flex; gap: 0.8rem; }
    .social-btn {
      width: 36px; height: 36px; border-radius: 8px; background: var(--card);
      border: 1px solid var(--border); display: flex; align-items: center; justify-content: center;
      cursor: pointer; transition: all 0.2s; text-decoration: none;
    }
    .social-btn:hover { border-color: var(--green); background: rgba(168,242,59,0.1); }
    .social-btn svg { width: 16px; height: 16px; stroke: var(--white); fill: none; stroke-width: 1.8; }
    .footer-col h5 {
      font-family: var(--font-head); font-size: 0.88rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1.2rem; color: var(--white);
    }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
    .footer-col ul a { text-decoration: none; color: var(--muted); font-size: 0.88rem; transition: color 0.2s; }
    .footer-col ul a:hover { color: var(--green); }
    .footer-bottom {
      border-top: 1px solid var(--border); padding-top: 1.8rem;
      display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
    }
    .footer-bottom p { font-size: 0.82rem; color: var(--muted); }
    .footer-bottom a { color: var(--green); text-decoration: none; }

    /* ── ANIMATIONS ── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(28px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .fade-up { opacity: 0; animation: fadeUp 0.65s ease forwards; }
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.22s; }
    .delay-3 { animation-delay: 0.36s; }
    .delay-4 { animation-delay: 0.5s; }

    /* ── RESPONSIVE ── */
    @media (max-width: 1024px) {
      .features-grid, .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    }

    @media (max-width: 768px) {
      nav { padding: 1rem 5%; }
      .nav-links, .nav-cta { display: none; }
      .nav-links.open {
        display: flex; flex-direction: column; gap: 0; position: absolute;
        top: 100%; left: 0; right: 0; background: var(--dark);
        border-bottom: 1px solid var(--border); padding: 1rem 5%;
      }
      .nav-links.open li { padding: 0.6rem 0; border-bottom: 1px solid var(--border); }
      .nav-cta.open { display: block; padding: 1rem 5%; background: var(--dark); }
      .hamburger { display: flex; }

      .hero { grid-template-columns: 1fr; padding: 7rem 5% 4rem; gap: 2.5rem; }
      .hero-img-wrap { order: -1; }
      .challenges-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
      .form-row { grid-template-columns: 1fr; }
      .features-grid, .metrics-grid, .services-grid { grid-template-columns: 1fr 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 480px) {
      .hero h1 { font-size: 2.2rem; }
      .hero-stats { gap: 1.5rem; }
      .features-grid, .metrics-grid, .services-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
      section { padding: 4rem 5%; }
    }