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

    :root {
      --green:      #2dba5f;
      --green-dark: #1f9448;
      --green-glow: rgba(45,186,95,0.18);
      --dark:       #0d1117;
      --dark2:      #161b22;
      --dark3:      #21262d;
      --text:       #e6edf3;
      --muted:      #8b949e;
      --border:     rgba(255,255,255,0.08);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--dark);
      color: var(--text);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* ── LANG TOGGLE ── */
    #lang-toggle {
      display: flex;
      gap: 0;
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
      flex-shrink: 0;
      margin-left: 1.5rem;
    }
    #lang-toggle button {
      padding: 0.35rem 0.9rem;
      background: rgba(13,17,23,0.7);
      color: var(--muted);
      border: none;
      cursor: pointer;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      transition: all .2s;
    }
    #lang-toggle button.active {
      background: var(--green);
      color: #fff;
    }

    /* ── NAV ── */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 900;
      padding: 1rem 2rem;
      display: flex;
      align-items: center;
      gap: 1rem;
      backdrop-filter: blur(16px);
      background: rgba(13,17,23,0.85);
      border-bottom: 1px solid var(--border);
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      text-decoration: none;
    }
    .nav-logo-icon {
      width: 36px; height: 36px;
      flex-shrink: 0;
    }
    .nav-logo-text {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text);
      letter-spacing: 0.06em;
    }
    .nav-logo-text span { color: var(--green); }
    .nav-links {
      margin-left: auto;
      display: flex;
      gap: 1.5rem;
      list-style: none;
    }
    .nav-links a {
      color: var(--muted);
      text-decoration: none;
      font-size: 0.88rem;
      font-weight: 500;
      transition: color .2s;
    }
    .nav-links a:hover { color: var(--green); }

    /* ── SECTIONS ── */
    section { padding: 6rem 2rem; }
    .container { max-width: 1100px; margin: 0 auto; }

    /* ── HERO ── */
    #hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding-top: 5rem;
      position: relative;
      overflow: hidden;
    }
    .hero-bg {
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(45,186,95,0.22) 0%, transparent 70%),
        radial-gradient(ellipse 60% 40% at 80% 110%, rgba(45,186,95,0.12) 0%, transparent 60%);
      pointer-events: none;
    }
    .hero-logo {
      width: 120px; height: 120px;
      margin: 0 auto 2rem;
      animation: float 4s ease-in-out infinite;
    }
    @keyframes float {
      0%,100% { transform: translateY(0); }
      50%      { transform: translateY(-10px); }
    }
    .hero-badge {
      display: inline-block;
      background: var(--green-glow);
      border: 1px solid rgba(45,186,95,0.4);
      color: var(--green);
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 0.35rem 1rem;
      border-radius: 999px;
      margin-bottom: 1.5rem;
    }
    h1 {
      font-size: clamp(2.5rem, 6vw, 4.5rem);
      font-weight: 900;
      line-height: 1.1;
      margin-bottom: 1.5rem;
      letter-spacing: -0.02em;
    }
    h1 .accent { color: var(--green); }
    .hero-sub {
      font-size: clamp(1rem, 2.5vw, 1.25rem);
      color: var(--muted);
      max-width: 680px;
      margin: 0 auto 2.5rem;
    }
    .btn-primary {
      display: inline-block;
      background: var(--green);
      color: #fff;
      text-decoration: none;
      padding: 0.9rem 2.5rem;
      border-radius: 10px;
      font-weight: 700;
      font-size: 1rem;
      transition: background .2s, transform .15s, box-shadow .2s;
      box-shadow: 0 0 30px rgba(45,186,95,0.35);
    }
    .btn-primary:hover {
      background: var(--green-dark);
      transform: translateY(-2px);
      box-shadow: 0 0 45px rgba(45,186,95,0.5);
    }
    .btn-outline {
      display: inline-block;
      border: 1px solid var(--green);
      color: var(--green);
      text-decoration: none;
      padding: 0.9rem 2.5rem;
      border-radius: 10px;
      font-weight: 700;
      font-size: 1rem;
      margin-left: 1rem;
      transition: all .2s;
    }
    .btn-outline:hover {
      background: var(--green-glow);
    }
    .hero-stats {
      display: flex;
      justify-content: center;
      gap: 3rem;
      margin-top: 4rem;
      flex-wrap: wrap;
    }
    .stat { text-align: center; }
    .stat-val {
      font-size: 2rem;
      font-weight: 800;
      color: var(--green);
      line-height: 1;
    }
    .stat-label {
      font-size: 0.82rem;
      color: var(--muted);
      margin-top: 0.3rem;
    }

    /* ── SECTION HEADER ── */
    .section-label {
      display: inline-block;
      color: var(--green);
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      margin-bottom: 0.75rem;
    }
    h2 {
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }
    .section-desc {
      color: var(--muted);
      font-size: 1.05rem;
      max-width: 580px;
      margin-bottom: 3.5rem;
    }

    /* ── ABOUT ── */
    #about { background: var(--dark2); }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .about-visual {
      position: relative;
    }
    .about-map-card {
      background: var(--dark3);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 2rem;
      text-align: center;
    }
    .map-svg {
      width: 100%;
      max-width: 320px;
      margin: 0 auto;
      display: block;
    }
    .about-pill {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      background: var(--green-glow);
      border: 1px solid rgba(45,186,95,0.3);
      border-radius: 999px;
      padding: 0.4rem 1rem;
      font-size: 0.82rem;
      color: var(--green);
      font-weight: 600;
      width: fit-content;
      margin: 1rem auto 0;
    }
    .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green);
      animation: pulse 1.5s ease-in-out infinite; }
    @keyframes pulse {
      0%,100% { opacity: 1; } 50% { opacity: 0.4; }
    }

    /* ── SERVICES ── */
    #services { background: var(--dark); }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .service-card {
      background: var(--dark2);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 2rem;
      transition: border-color .25s, transform .2s, box-shadow .25s;
    }
    .service-card:hover {
      border-color: rgba(45,186,95,0.5);
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    }
    .service-icon {
      width: 52px; height: 52px;
      background: var(--green-glow);
      border: 1px solid rgba(45,186,95,0.3);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.25rem;
      font-size: 1.5rem;
    }
    .service-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.6rem;
    }
    .service-card p {
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.6;
    }

    /* ── ADVANTAGES ── */
    #advantages { background: var(--dark2); }
    .adv-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.25rem;
    }
    .adv-item {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
      background: var(--dark3);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 1.5rem;
    }
    .adv-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--green);
      opacity: 0.25;
      line-height: 1;
      flex-shrink: 0;
      width: 2.5rem;
    }
    .adv-item h4 {
      font-size: 0.98rem;
      font-weight: 700;
      margin-bottom: 0.3rem;
    }
    .adv-item p {
      font-size: 0.85rem;
      color: var(--muted);
    }

    /* ── TECH ── */
    #tech { background: var(--dark); }
    .tech-banner {
      background: linear-gradient(135deg, var(--dark2) 0%, #0d1e14 100%);
      border: 1px solid rgba(45,186,95,0.2);
      border-radius: 20px;
      padding: 3rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }
    .tech-specs {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .spec-row {
      display: flex;
      align-items: center;
      gap: 1rem;
      font-size: 0.9rem;
    }
    .spec-bar-wrap {
      flex: 1;
      height: 6px;
      background: var(--dark3);
      border-radius: 3px;
      overflow: hidden;
    }
    .spec-bar {
      height: 100%;
      background: var(--green);
      border-radius: 3px;
    }
    .spec-label { min-width: 120px; color: var(--muted); font-size: 0.82rem; }
    .spec-val { min-width: 60px; text-align: right; font-weight: 700; font-size: 0.82rem; color: var(--green); }

    /* ── CONTACT ── */
    #contact { background: var(--dark2); }
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
    }
    .contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
    .contact-row {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
    }
    .contact-icon {
      width: 42px; height: 42px;
      background: var(--green-glow);
      border: 1px solid rgba(45,186,95,0.3);
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.1rem;
      flex-shrink: 0;
    }
    .contact-row h4 { font-size: 0.78rem; color: var(--muted); font-weight: 500; margin-bottom: 0.2rem; }
    .contact-row p, .contact-row a {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text);
      text-decoration: none;
    }
    .contact-row a:hover { color: var(--green); }
    .contact-form {
      background: var(--dark3);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .contact-form input,
    .contact-form textarea {
      background: var(--dark2);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 0.8rem 1rem;
      color: var(--text);
      font-family: inherit;
      font-size: 0.9rem;
      width: 100%;
      transition: border-color .2s;
      outline: none;
    }
    .contact-form input:focus,
    .contact-form textarea:focus { border-color: var(--green); }
    .contact-form textarea { min-height: 120px; resize: vertical; }
    .contact-form button {
      background: var(--green);
      color: #fff;
      border: none;
      border-radius: 10px;
      padding: 0.85rem 2rem;
      font-size: 0.95rem;
      font-weight: 700;
      cursor: pointer;
      transition: background .2s;
      font-family: inherit;
    }
    .contact-form button:hover { background: var(--green-dark); }

    /* ── FOOTER ── */
    footer {
      background: var(--dark);
      border-top: 1px solid var(--border);
      padding: 2.5rem 2rem;
      text-align: center;
      color: var(--muted);
      font-size: 0.82rem;
    }
    footer a { color: var(--green); text-decoration: none; }
    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: 1100px;
      margin: 0 auto;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
    .footer-logo-icon { width: 28px; height: 28px; }

    /* ── RESPONSIVE ── */
    /* ── PARTNERS ── */
    #partners { background: var(--dark); }
    .partners-diagram-wrap {
      background: var(--dark2);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 2rem 1rem;
      margin-bottom: 2rem;
      overflow-x: auto;
    }
    .partners-svg { width: 100%; min-width: 560px; display: block; }
    .partners-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.25rem;
    }
    .partner-card {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
      background: var(--dark2);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 1.5rem;
      transition: border-color .25s;
    }
    .partner-card:hover { border-color: rgba(45,186,95,0.4); }
    .partner-icon {
      font-size: 1.4rem;
      flex-shrink: 0;
      width: 44px; height: 44px;
      background: var(--green-glow);
      border: 1px solid rgba(45,186,95,0.3);
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
    }
    .partner-card h4 { font-size: .95rem; font-weight: 700; margin-bottom: .3rem; }
    .partner-card p { font-size: .84rem; color: var(--muted); line-height: 1.5; }

    @media (max-width: 900px) {
      .about-grid,
      .contact-wrapper,
      .tech-banner { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr 1fr; }
      .adv-grid { grid-template-columns: 1fr; }
      .partners-cards { grid-template-columns: 1fr; }
      .nav-links { display: none; }
      #lang-toggle { margin-left: auto; }
    }
    @media (max-width: 600px) {
      .services-grid { grid-template-columns: 1fr; }
      .hero-stats { gap: 1.5rem; }
      section { padding: 4rem 1.25rem; }
    }

    /* ── LANG VISIBILITY ── */
    [data-ru], [data-en], [data-be] { }
    body.lang-en [data-ru]  { display: none !important; }
    body.lang-en [data-be]  { display: none !important; }
    body.lang-ru [data-en]  { display: none !important; }
    body.lang-ru [data-be]  { display: none !important; }
    body.lang-be [data-ru]  { display: none !important; }
    body.lang-be [data-en]  { display: none !important; }