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

    body {
      font-family: 'Inter', sans-serif;
      background-color: #ffffff;
      color: #1e1e1e;
      scroll-behavior: smooth;
      line-height: 1.4;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* кнопки и акценты */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 60px;
      font-weight: 600;
      font-size: 0.95rem;
      letter-spacing: -0.2px;
      transition: all 0.25s ease;
      border: none;
      cursor: pointer;
      text-decoration: none;
    }

    .btn-primary {
      background: #b5682a;
      color: white;
      box-shadow: 0 8px 18px rgba(181, 104, 42, 0.2);
    }

    .btn-primary:hover {
      background: #944f1c;
      transform: translateY(-2px);
      box-shadow: 0 12px 22px rgba(181, 104, 42, 0.25);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid #b5682a;
      color: #b5682a;
    }

    .btn-outline:hover {
      background: #b5682a;
      color: white;
    }

    /* хедер с бургер-меню */
    header {
      background: rgba(255,255,255,0.96);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 110;
      border-bottom: 1px solid #efebe7;
    }

    .nav-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 0;
      flex-wrap: wrap;
    }

    .logo {
      font-size: 1.7rem;
      font-weight: 700;
      letter-spacing: -0.8px;
      background: linear-gradient(135deg, #2f2a27, #b5682a);
      background-clip: text;
      -webkit-background-clip: text;
      color: transparent;
    }

    /* десктопное меню */
    .nav-links {
      display: flex;
      gap: 32px;
    }

    .nav-links a {
      text-decoration: none;
      font-weight: 500;
      color: #2c2825;
      font-size: 0.95rem;
      transition: 0.2s;
    }

    .nav-links a:hover {
      color: #b5682a;
    }

    /* бургер-иконка (три точки / три полоски) */
    .burger-menu {
      display: none;
      font-size: 1.8rem;
      cursor: pointer;
      color: #2c2825;
      background: none;
      border: none;
      width: 44px;
      height: 44px;
      border-radius: 40px;
      transition: 0.2s;
      align-items: center;
      justify-content: center;
    }
    .burger-menu:hover {
      background-color: #f5ede6;
    }

    /* мобильное меню (выпадашка) */
    .mobile-nav {
      display: none;
      flex-direction: column;
      background: white;
      width: 100%;
      padding: 20px 24px;
      gap: 20px;
      border-top: 1px solid #efe4db;
      box-shadow: 0 12px 20px rgba(0,0,0,0.05);
    }
    .mobile-nav a {
      text-decoration: none;
      font-weight: 500;
      color: #2c2825;
      font-size: 1.1rem;
      padding: 8px 0;
      border-bottom: 1px solid #f3ece5;
    }
    .mobile-nav a:last-child {
      border-bottom: none;
    }
    .mobile-nav.show-mobile {
      display: flex;
    }

    /* герой с УТП */
    .hero {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 48px;
      padding: 70px 0 80px;
    }

    .hero-text {
      flex: 1.2;
    }

    .hero-text h1 {
      font-size: 3.5rem;
      font-weight: 800;
      letter-spacing: -1.5px;
      line-height: 1.15;
      background: linear-gradient(135deg, #1f1b18 0%, #5c3c24 100%);
      background-clip: text;
      -webkit-background-clip: text;
      color: transparent;
      margin-bottom: 24px;
    }

    .hero-text p {
      font-size: 1.1rem;
      color: #4b3f38;
      margin-bottom: 36px;
      max-width: 90%;
      line-height: 1.5;
    }

    .hero-buttons {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }

    .hero-image {
      flex: 1;
      border-radius: 38px;
      overflow: hidden;
      box-shadow: 0 28px 40px -15px rgba(0,0,0,0.2);
    }

    .hero-image img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    /* общие заголовки */
    .section-title {
      font-size: 2.3rem;
      font-weight: 700;
      letter-spacing: -1px;
      margin-bottom: 48px;
      position: relative;
    }

    .section-title:after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -14px;
      width: 70px;
      height: 3px;
      background: #b5682a;
      border-radius: 4px;
    }

    /* УСИЛИВАЮЩИЙ ЗАГОЛОВОК (блок с цифрами и преимуществами) */
    .impact-strip {
      background: #fcf8f3;
      border-radius: 48px;
      padding: 48px 40px;
      margin: 40px 0 60px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 32px;
      text-align: center;
      box-shadow: 0 8px 18px rgba(0,0,0,0.02);
      border: 1px solid #f2e9e1;
    }
    .impact-item {
      flex: 1;
      min-width: 160px;
    }
    .impact-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: #b5682a;
      line-height: 1.2;
      margin-bottom: 8px;
    }
    .impact-label {
      font-size: 1rem;
      font-weight: 500;
      color: #2c2825;
      letter-spacing: -0.2px;
    }
    .impact-desc {
      font-size: 0.85rem;
      color: #6f5b4c;
      margin-top: 6px;
    }

    /* сетка типов лестниц */
    .types-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      justify-content: center;
      margin-bottom: 20px;
    }

    .type-card {
      background: #ffffff;
      border-radius: 32px;
      overflow: hidden;
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.04);
      transition: all 0.3s cubic-bezier(0.2,0,0,1);
      width: 320px;
      flex: 1 1 280px;
      border: 1px solid #f1ede9;
    }

    .type-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 24px 40px -12px rgba(0,0,0,0.12);
      border-color: #e4d9d0;
    }

    .main-preview-img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      cursor: pointer;
      transition: 0.2s;
    }

    .thumb-row {
      display: flex;
      gap: 8px;
      padding: 12px;
      background: #fff;
      overflow-x: auto;
    }

    .thumb-img {
      width: 60px;
      height: 60px;
      object-fit: cover;
      border-radius: 16px;
      cursor: pointer;
      opacity: 0.6;
      transition: 0.2s;
      border: 2px solid transparent;
    }

    .thumb-img.active-thumb {
      opacity: 1;
      border-color: #b5682a;
    }

    .type-info {
      padding: 20px 20px 24px;
    }

    .type-info h3 {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .btn-details {
      background: none;
      border: none;
      color: #b5682a;
      font-weight: 600;
      cursor: pointer;
      margin-top: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
    }

    /* модалка */
    .modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(20, 18, 16, 0.85);
      backdrop-filter: blur(8px);
      z-index: 1000;
      justify-content: center;
      align-items: center;
    }

    .modal-content {
      background: #fffefc;
      max-width: 760px;
      width: 90%;
      border-radius: 40px;
      padding: 32px;
      max-height: 85vh;
      overflow-y: auto;
    }

    /* квиз блок */
    .quiz-section {
      background: #fdf8f3;
      border-radius: 48px;
      padding: 48px 40px;
      margin: 70px 0;
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.02);
    }

    .quiz-form {
      display: flex;
      flex-direction: column;
      gap: 24px;
      margin-top: 28px;
    }

    .form-row {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
    }

    .form-group {
      flex: 1;
      min-width: 200px;
    }

    label {
      font-weight: 600;
      font-size: 0.85rem;
      margin-bottom: 6px;
      display: block;
      letter-spacing: -0.2px;
    }

    input, select, textarea {
      width: 100%;
      padding: 12px 18px;
      border-radius: 28px;
      border: 1px solid #e2d8d0;
      background: white;
      font-family: 'Inter', sans-serif;
      font-size: 0.9rem;
    }

    /* ПРОЕКТЫ: стилизованные блоки */
    .projects-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      margin: 30px 0 20px;
    }

    .project-card {
      background: white;
      border-radius: 32px;
      flex: 1 1 360px;
      overflow: hidden;
      box-shadow: 0 12px 28px rgba(0,0,0,0.05);
      border: 1px solid #f0eae4;
      transition: transform 0.2s ease, box-shadow 0.2s;
    }
    .project-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 24px 40px -12px rgba(0,0,0,0.12);
    }

    .project-image-container {
      position: relative;
      cursor: pointer;
      overflow: hidden;
    }
    .project-main-img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      transition: transform 0.3s;
    }
    .project-card:hover .project-main-img {
      transform: scale(1.02);
    }
    .project-thumb-row {
      display: flex;
      gap: 10px;
      padding: 14px 16px;
      background: #fefbf8;
      border-top: 1px solid #f0e8e0;
      overflow-x: auto;
    }
    .project-thumb {
      width: 65px;
      height: 65px;
      object-fit: cover;
      border-radius: 16px;
      cursor: pointer;
      border: 2px solid transparent;
      transition: 0.2s;
      opacity: 0.7;
    }
    .project-thumb.active-project-thumb {
      opacity: 1;
      border-color: #b5682a;
    }
    .project-info {
      padding: 20px 24px 28px;
    }
    .project-title {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.3px;
      color: #2c241f;
    }
    .project-details {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 16px;
      border-bottom: 1px dashed #ece3db;
      padding-bottom: 12px;
    }
    .detail-badge {
      background: #f6f0ea;
      padding: 6px 14px;
      border-radius: 40px;
      font-size: 0.8rem;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .detail-badge i {
      color: #b5682a;
      font-size: 0.8rem;
    }
    .project-price {
      font-size: 1.6rem;
      font-weight: 800;
      color: #b5682a;
      margin: 12px 0 8px;
      letter-spacing: -0.5px;
    }
    .project-params {
      color: #5d4b3c;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-top: 6px;
    }
    .project-params i {
      color: #9b7b64;
      width: 20px;
    }

    /* why us */
    .why-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      margin: 50px 0 70px;
    }

    .why-item {
      flex: 1;
      background: #ffffff;
      padding: 28px 20px;
      border-radius: 32px;
      text-align: center;
      box-shadow: 0 8px 18px rgba(0,0,0,0.02);
      border: 1px solid #efebe6;
      transition: 0.2s;
    }

    .why-item i {
      font-size: 2.5rem;
      color: #b5682a;
      margin-bottom: 20px;
    }

    /* о компании */
    .about-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 56px;
      align-items: center;
      margin: 30px 0 50px;
    }

    .workers-row {
      display: flex;
      gap: 28px;
      flex-wrap: wrap;
      margin-top: 28px;
    }

    .worker-card {
      text-align: center;
      width: 110px;
    }

    .worker-card img {
      width: 100%;
      border-radius: 100%;
      aspect-ratio: 1/1;
      object-fit: cover;
      box-shadow: 0 12px 20px rgba(0,0,0,0.08);
    }

    /* контакты */
    .contacts-block {
      display: flex;
      flex-wrap: wrap;
      gap: 40px;
      background: #fcf9f6;
      border-radius: 48px;
      padding: 44px;
      margin: 40px 0;
    }

    .contacts-info a {
      color: #b5682a;
      font-size: 1.3rem;
      margin-right: 20px;
      text-decoration: none;
    }

    .map-placeholder {
      flex: 1;
      background: #e6dfd7;
      border-radius: 32px;
      min-height: 220px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 500;
    }

    footer {
      text-align: center;
      padding: 32px;
      border-top: 1px solid #eee7e1;
      margin-top: 60px;
    }

    /* ===== АДАПТИВ ===== */
    @media (max-width: 800px) {
      .hero-text h1 { font-size: 2.4rem; }
      .container { padding: 0 20px; }
      .nav-links { display: none; }  /* прячем десктопное меню */
      .burger-menu { display: flex; }  /* показываем три точки */
      .impact-strip { padding: 32px 24px; }
      .impact-number { font-size: 2rem; }
    }