:root {
    --bg: rgba(255, 255, 255, 0.52);
    --accent: #1f6feb;
    --text: #0b2340;
    --header-h: 102px;
    --shadow: 0 6px 18px rgba(6, 30, 63, 0.06);
  }

  html {
    scroll-behavior: smooth;
  }

  .site-header {
    position: sticky;
    top: 0;
    width: 100%;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(90deg,
        rgba(240, 245, 255, 1) 0%,
        rgba(210, 225, 255, 1) 40%,
        rgba(180, 210, 255, 1) 100%);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.52);
    box-shadow: var(--shadow);
    z-index: 1200;
    padding: 0 18px;
  }

  .header-inner {
    width: 100%;
    max-width: 1150px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
  }

  .logo img {
    height: 104px;
    width: auto;
    display: block;
  }

  .nav {
    display: flex;
    gap: 22px;
    align-items: end;
  }

  .nav a {
    text-decoration: none;
    color: var(--text);
    padding: 8px 6px;
    font-size: 16px;
    border-radius: 6px;
    font-weight: 500;
    transition: background .14s, color .14s, transform .08s;
  }

  .btn {
    padding: 8px 12px;
    border-radius: 8px;
    background: var(--accent);
    color: white;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 6px 14px rgba(31, 111, 235, 0.12);
  }

  .menu-toggle {
    display: none;
    background: transparent;
    border: 0;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
  }

  .menu-toggle:focus {
    outline: 2px solid rgba(31, 111, 235, 0.18)
  }

  .mobile-panel {
    position: fixed;
    right: 0;
    top: 0;
    height: 100vh;
    width: 320px;
    max-width: 85%;
    transform: translateX(110%);
    transition: transform .28s cubic-bezier(.22, .9, .15, 1);
    background: linear-gradient(180deg, #fff, #f7fbff);
    box-shadow: -20px 12px 50px rgba(10, 30, 60, 0.12);
    z-index: 1400;
    padding: 20px;
    display: flex;
    flex-direction: column;
  }

  .mobile-panel.open {
    transform: translateX(0)
  }

  .mobile-panel .close-btn {
    align-self: flex-end;
    background: transparent;
    border: 0;
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
  }

  .mobile-panel nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px
  }

  .mobile-panel a {
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text);
    font-weight: 600
  }

  .mobile-panel a:hover {
    background: rgba(31, 111, 235, 0.06);
    color: var(--accent)
  }

  .backdrop {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.36);
    opacity: 0;
    pointer-events: none;
    transition: opacity .18s;
    z-index: 1300;
  }

  .backdrop.show {
    opacity: 1;
    pointer-events: auto
  }

  @media (max-width: 880px) {
    .nav {
      display: none
    }

    .menu-toggle {
      display: inline-flex
    }

    .logo .brand .name {
      font-size: 16px
    }
  }

  @media (max-width:420px) {
    :root {
      --header-h: 64px
    }

    .logo img {
      height: 38px
    }
  }

  :root {
    --wt-max-width: 1200px;
    --wt-gutter: 68px;
    --wt-footer-min-h: 460px;
    --wt-bg-pos: center 28%;
    --wt-accent: #cfd3d6;
    --wt-white: #fff;
  }

  .wt-footer {
    position: relative;
    overflow: hidden;
    background: #000;
    color: var(--wt-white);
    min-height: var(--wt-footer-min-h);
    padding-top: 28px;
    padding-bottom: 20px;
    box-sizing: border-box;
  }

  .wt-footer__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    background-image: url('../../public/images/about/footer-img-black1.png');
    background-size: cover;
    background-position: var(--wt-bg-pos);
    background-repeat: no-repeat;
    filter: contrast(0.96) saturate(0.98);
    pointer-events: none;
  }

  .wt-footer__inner {
    position: relative;
    z-index: 3;
    max-width: var(--wt-max-width);
    margin: 0 auto;
    padding-left: var(--wt-gutter);
    padding-right: var(--wt-gutter);
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 320px 1fr 290px;
    gap: 120px;
    align-items: start;
  }

  .wt-footer__col {
    min-height: 1px;
  }

  .wt-footer__logo img {
    height: 102px;
    width: auto;
    display: block;
    margin-bottom: 14px;
    filter: brightness(1.02);
  }

  .wt-footer__social {
    display: flex;
    gap: 12px;
    align-items: center;
  }

  .wt-footer__social .social {
    width: 36px;
    height: 36px;
    display: inline-grid;
    place-items: center;
  }

  .wt-footer__social .social img {
    width: 40px;
    height: 40px;
    object-fit: contain;
  }

  .wt-footer__heading {
    font-size: 18px;
    font-weight: 700;
    color: var(--wt-accent);
    margin: 0 0 12px 0;
  }

  .wt-footer__list {
    list-style: none;
    margin: 0;
    font-size: 20px;
    font-weight: 500;
    padding: 0;
    display: grid;
    gap: -2px;
  }

  .wt-footer__list a {
    color: var(--wt-white);
    font-size: 16px;
    text-decoration: none;
    opacity: 0.96;
  }

  .wt-footer__list a:hover {
    color: var(--wt-accent);
    text-decoration: underline;
  }

  .wt-footer__address {
    margin: 0;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
  }

  .wt-footer__copyright {
    position: relative;
    z-index: 3;
    max-width: var(--wt-max-width);
    margin: 350px auto 0;
    padding-left: var(--wt-gutter);
    padding-right: var(--wt-gutter);
    text-align: center;
    font-weight: 500;
    font-size: 16px;
    color: rgba(102, 100, 109, 1);
  }

  @media (max-width: 700px) {

    .wt-footer__inner {
      grid-template-columns: 1fr;
      gap: 22px;
      text-align: center;
      align-items: center;
      padding-left: 20px;
      padding-right: 20px;
    }

    .wt-footer__brand {
      order: 1;
      width: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .wt-footer__logo img {
      height: 62px;
      margin: 0 auto;
    }

    .wt-footer__social {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 14px;
      margin-top: 10px;
    }

    .wt-footer__links {
      order: 2;
      text-align: center;
      width: 100%;
    }

    .wt-footer__addr {
      order: 3;
      text-align: center;
      width: 100%;
    }

    .wt-footer__list a,
    .wt-footer__address {
      font-size: 14px;
    }

    .wt-footer__copyright {
      margin-top: 20px;
      font-size: 13px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      padding-bottom: 12px;
    }
  }