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

    :root {
      --green:      #2D6A4F;
      --green-mid:  #52B788;
      --green-light:#D8F3DC;
      --bg:         #F4FAF6;
      --text:       #1B2D2A;
      --muted:      #5A7A6E;
      --white:      #ffffff;
      --radius:     12px;
    }

    body {
      font-family: 'Segoe UI', system-ui, sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 16px;
      line-height: 1.6;
    }

    /* ── HEADER ── */
    header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 40px;
      background: var(--white);
      border-bottom: 1px solid #E4EEE8;
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .logo {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--green);
      letter-spacing: -0.5px;
    }
    .logo span { color: var(--green-mid); }

    .header-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* language toggle */
    .lang-toggle {
      display: flex;
      border: 1px solid var(--green);
      border-radius: 8px;
      overflow: hidden;
    }
    .lang-toggle button {
      padding: 6px 14px;
      border: none;
      background: transparent;
      cursor: pointer;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--green);
      transition: background 0.2s, color 0.2s;
    }
    .lang-toggle button.active {
      background: var(--green);
      color: var(--white);
    }

    /* sign-in button */
    .btn-signin {
      padding: 8px 22px;
      background: var(--green);
      color: var(--white);
      border: none;
      border-radius: var(--radius);
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      transition: background 0.2s;
    }
    .btn-signin:hover { background: #235540; }

    /* ── HERO ── */
    .hero {
      text-align: center;
      padding: 80px 24px 40px;
      max-width: 780px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-block;
      background: var(--green-light);
      color: var(--green);
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 5px 14px;
      border-radius: 20px;
      margin-bottom: 24px;
    }

    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.2rem);
      font-weight: 800;
      color: var(--green);
      line-height: 1.15;
      margin-bottom: 20px;
    }

    .hero p {
      font-size: 1.15rem;
      color: var(--muted);
      max-width: 560px;
      margin: 0 auto 36px;
    }

    .btn-primary {
      display: inline-block;
      padding: 14px 36px;
      background: var(--green);
      color: var(--white);
      font-size: 1rem;
      font-weight: 700;
      border-radius: var(--radius);
      text-decoration: none;
      border: none;
      cursor: pointer;
      transition: background 0.2s, transform 0.15s;
    }
    .btn-primary:hover { background: #235540; transform: translateY(-1px); }

    /* ── FEATURES ── */
    .features {
      padding: 70px 24px;
      background: var(--white);
    }

    .section-title {
      text-align: center;
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--green);
      margin-bottom: 48px;
    }

    .cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .card {
      background: var(--bg);
      border-radius: var(--radius);
      padding: 28px 24px;
      border: 1px solid #DFF0E5;
    }

    .card-icon {
      font-size: 2rem;
      margin-bottom: 14px;
    }

    .card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--green);
      margin-bottom: 8px;
    }

    .card p {
      font-size: 0.9rem;
      color: var(--muted);
    }

    /* ── SHARED ── */
    .section-inner { max-width: 1060px; margin: 0 auto; }

    /* ── APP SCREENSHOTS ── */
    .app-section { padding: 70px 24px; background: var(--bg); }

    .app-features-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      max-width: 680px;
      margin: 0 auto 48px;
    }
    .app-feature { display: flex; gap: 16px; align-items: flex-start; }
    .app-num {
      flex-shrink: 0;
      width: 34px; height: 34px;
      background: var(--green);
      color: var(--white);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-weight: 700; font-size: 0.9rem;
      margin-top: 1px;
    }
    .app-feature h3 { font-size: 1rem; font-weight: 700; color: var(--green); margin-bottom: 4px; }
    .app-feature p  { font-size: 0.88rem; color: var(--muted); }

    .screenshots-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }
    .screenshot-item { margin: 0; }
    .screenshot-item img {
      width: 100%; display: block;
      border-radius: var(--radius);
      box-shadow: 0 4px 20px rgba(0,0,0,0.12);
      border: 1px solid #DFF0E5;
    }
    .screenshot-item figcaption {
      text-align: center; font-size: 0.8rem;
      color: var(--muted); margin-top: 8px;
    }

    /* ── AI ADVANTAGE ── */
    .ai-section { padding: 70px 24px; background: var(--white); }

    .ai-pillars {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 28px;
    }
    .ai-pillar h3 { font-size: 1rem; font-weight: 700; color: var(--green); margin-bottom: 10px; }
    .ai-pillar > p, .ai-pillar ul { font-size: 0.88rem; color: var(--muted); margin-bottom: 16px; }
    .ai-pillar ul { padding-left: 18px; }
    .ai-pillar li { margin-bottom: 6px; }
    .ai-pillar img { width: 100%; border-radius: 8px; display: block; }

    /* ── ROI ── */
    .roi-section { padding: 70px 24px; background: var(--bg); }

    .roi-compare {
      display: flex; gap: 40px;
      justify-content: center; flex-wrap: wrap;
      margin: 0 auto 36px;
    }
    .roi-box { text-align: center; flex: 1; min-width: 220px; max-width: 320px; }
    .roi-dots {
      display: grid;
      grid-template-columns: repeat(10, 1fr);
      gap: 5px;
      margin: 0 auto 20px;
    }
    .roi-dot { width: 13px; height: 13px; border-radius: 50%; background: #C8DFD0; }
    .roi-dot.filled { background: var(--green); }
    .roi-amount { font-size: 3.2rem; font-weight: 800; color: var(--green); line-height: 1; margin-bottom: 8px; }
    .roi-tenge  { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
    .roi-desc   { font-size: 0.88rem; color: var(--muted); }
    .roi-cta    {
      text-align: center; font-size: 1.05rem;
      color: var(--green); font-weight: 600;
      max-width: 600px; margin: 0 auto;
    }

    /* ── TRACTION ── */
    .traction-section { padding: 70px 24px; background: var(--white); }

    .traction-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
    }
    .traction-left h3, .traction-right h3 {
      font-size: 1.15rem; font-weight: 700;
      color: var(--green); margin-bottom: 20px;
    }
    .traction-list {
      padding-left: 22px;
      display: flex; flex-direction: column; gap: 14px;
      margin-bottom: 32px;
    }
    .traction-list li { font-size: 0.95rem; color: var(--text); }
    .traction-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .traction-photos img { width: 100%; border-radius: var(--radius); display: block; }

    .roadmap { display: flex; flex-direction: column; gap: 24px; }
    .roadmap-item { display: flex; gap: 16px; align-items: flex-start; }
    .roadmap-icon { font-size: 1.5rem; flex-shrink: 0; }
    .roadmap-item strong { display: block; font-size: 0.95rem; color: var(--green); margin-bottom: 4px; }
    .roadmap-item p { font-size: 0.85rem; color: var(--muted); }

    @media (max-width: 700px) {
      .traction-layout { grid-template-columns: 1fr; }
      .traction-photos { grid-template-columns: 1fr; }
    }

    /* ── TEAM ── */
    .team-section { padding: 70px 24px; background: var(--bg); }

    .team-layout {
      display: grid;
      grid-template-columns: 1fr 300px;
      gap: 48px;
      align-items: start;
    }

    .team-grid {
      display: flex; flex-direction: column;
      gap: 20px;
    }
    .team-member {
      display: flex; gap: 20px; align-items: flex-start;
      background: var(--white);
      border-radius: var(--radius);
      padding: 20px;
      border: 1px solid #DFF0E5;
    }
    .team-avatar {
      flex-shrink: 0;
      width: 70px; height: 70px;
      border-radius: 50%;
      background: var(--green);
      color: var(--white);
      display: flex; align-items: center; justify-content: center;
      font-weight: 700; font-size: 1.05rem;
      overflow: hidden;
    }
    .team-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
    .team-info h3 { font-size: 1rem; font-weight: 700; color: var(--green); margin-bottom: 6px; }
    .team-info p  { font-size: 0.875rem; color: var(--muted); }

    .team-group { text-align: center; position: sticky; top: 80px; }
    .team-group img {
      width: 100%; border-radius: var(--radius);
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      display: block; margin-bottom: 10px;
    }
    .team-group p { font-size: 0.85rem; color: var(--muted); }

    @media (max-width: 700px) {
      .team-layout { grid-template-columns: 1fr; }
      .team-group { position: static; max-width: 480px; margin: 0 auto; }
    }

    /* ── APP CTA ── */
    .app-cta-section { padding: 70px 24px; background: var(--green); color: var(--white); }

    .app-cta-inner { display: flex; gap: 48px; align-items: center; }
    .app-cta-text { flex: 1; }
    .app-cta-title { font-size: 1.8rem; font-weight: 700; color: var(--white); margin-bottom: 24px; }

    .app-cta-list {
      list-style: none;
      display: flex; flex-direction: column; gap: 12px;
      margin-bottom: 32px;
    }
    .app-cta-list li { display: flex; align-items: center; gap: 10px; font-size: 1rem; }
    .app-cta-list li::before { content: '✓'; font-weight: 700; color: var(--green-mid); font-size: 1.1rem; }

    .app-cta-links { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
    .btn-white { background: var(--white); color: var(--green); }
    .btn-white:hover { background: var(--green-light); transform: translateY(-1px); }
    .app-contact { font-size: 0.9rem; opacity: 0.85; line-height: 1.6; }
    .app-contact a { color: var(--white); }

    .app-cta-screenshot { flex-shrink: 0; width: 240px; margin: 0; }
    .app-cta-screenshot img {
      width: 100%; border-radius: 20px;
      box-shadow: 0 8px 32px rgba(0,0,0,0.35);
      display: block;
    }

    @media (max-width: 700px) {
      .app-cta-inner { flex-direction: column-reverse; }
      .app-cta-screenshot { width: 180px; margin: 0 auto; }
    }

    /* ── CONTACT FORM ── */
    .contact {
      padding: 80px 24px;
      max-width: 560px;
      margin: 0 auto;
    }

    .contact .section-title { margin-bottom: 12px; }
    .contact-sub {
      text-align: center;
      color: var(--muted);
      margin-bottom: 36px;
      font-size: 0.95rem;
    }

    form {
      display: flex;
      flex-direction: column;
      gap: 14px;
      background: var(--white);
      padding: 36px;
      border-radius: var(--radius);
      border: 1px solid #DFF0E5;
    }

    form input, form select, form textarea {
      padding: 12px 16px;
      border: 1px solid #C7E3CF;
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text);
      background: var(--bg);
      outline: none;
      font-family: inherit;
      transition: border 0.2s;
    }
    form input:focus, form select:focus, form textarea:focus {
      border-color: var(--green-mid);
    }

    form textarea { resize: vertical; min-height: 80px; }

    .form-label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text);
      margin-bottom: -6px;
    }

    .btn-submit {
      padding: 13px;
      background: var(--green);
      color: var(--white);
      border: none;
      border-radius: var(--radius);
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s;
      margin-top: 4px;
    }
    .btn-submit:hover { background: #235540; }

    .form-note {
      text-align: center;
      font-size: 0.78rem;
      color: var(--muted);
      margin-top: 4px;
    }

    /* success message */
    .success-msg {
      display: none;
      text-align: center;
      padding: 20px;
      background: var(--green-light);
      border-radius: var(--radius);
      color: var(--green);
      font-weight: 600;
    }

    /* ── FOOTER ── */
    footer {
      padding: 40px 24px 28px;
      background: var(--white);
      border-top: 1px solid #E4EEE8;
      color: var(--muted);
      font-size: 0.85rem;
    }

    .footer-inner {
      max-width: 1060px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }

    footer .logo { font-size: 1rem; display: inline-block; }

    .footer-nav {
      display: flex;
      gap: 28px;
      flex-wrap: wrap;
    }
    .footer-nav a {
      color: var(--muted);
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s;
    }
    .footer-nav a:hover { color: var(--green); }

    .footer-copy {
      max-width: 1060px;
      margin: 0 auto;
      padding-top: 20px;
      border-top: 1px solid #E4EEE8;
      text-align: center;
      font-size: 0.8rem;
    }

    /* ── SCROLL OFFSET for sticky header ── */
    #features, #app, #team, #contact { scroll-margin-top: 72px; }

    /* ── RESPONSIVE ── */
    @media (max-width: 600px) {
      header { padding: 14px 20px; }
      form { padding: 24px 20px; }
      .footer-inner { flex-direction: column; align-items: center; text-align: center; gap: 16px; }
      .footer-nav { justify-content: center; gap: 16px; }
    }