/* ============================================================
   u_nav.css — Navigation component styles
   ============================================================ */

/* #region |||||||||| NAV SHELL ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*| */

  .nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--L-NAV-H);
    background: var(--C-BON);
    border-bottom: 1px solid var(--C-BON-D);
    display: flex;
    align-items: center;
    transition: box-shadow var(--T-BASE);
  }

  .nav.is-scrolled { box-shadow: var(--SH-MD); }

  .nav__inner {
    width: 100%;
    max-width: var(--L-MWID);
    margin: 0 auto;
    padding: 0 var(--P-PGE-X);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--S-LG);
  }

  @media (min-width: 1220px) { .nav__inner { padding: 0 var(--S-LG); } }

/* #endregion */

/* #region |||||||||| LOGO ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*| */

  .nav__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
  }

  .nav__logo img { height: 38px; width: auto; display: block; }

/* #endregion */

/* #region |||||||||| MENU ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*| */

  .nav__menu {
    display: flex;
    align-items: center;
    gap: var(--S-XL);
    list-style: none;
    margin: 0; padding: 0;
  }

  /* Standard nav link */
  .nav__link {
    font-family: var(--F-BDY);
    font-size: var(--T-SM);
    font-weight: 700;
    color: var(--C-COL);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color var(--T-BASE);
    position: relative;
    padding-bottom: 2px;
  }

  .nav__link::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    height: 2px;
    background: var(--C-RUB);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--T-BASE);
  }

  .nav__link:hover,
  .nav__link[aria-current="page"] { color: var(--C-RUB); }

  .nav__link:hover::after,
  .nav__link[aria-current="page"]::after { transform: scaleX(1); }

  /* CTA link — always solid */
  .nav__link--cta {
    padding: 0.4rem var(--S-MD);
    border: 1.5px solid var(--C-RUB);
    border-radius: var(--R-MD);
    background: var(--C-RUB);
    color: var(--C-WHT) !important;
    transition: background var(--T-BASE), border-color var(--T-BASE) !important;
  }
  .nav__link--cta::after { display: none; }
  .nav__link--cta:hover { background: var(--C-RUB-D); border-color: var(--C-RUB-D); }

/* #endregion */

/* #region |||||||||| HAMBURGER ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*| */

  .nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px; height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: var(--R-SM);
  }

  .nav__toggle-bar {
    display: block;
    height: 1.5px;
    background: var(--C-COL);
    border-radius: 1px;
    transition: transform var(--T-BASE), opacity var(--T-BASE);
  }

  .nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* #endregion */

/* #region |||||||||| RESPONSIVE ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*| */

  @media (max-width: 768px) {
    .nav { height: auto; align-items: flex-start; }

    .nav__inner {
      flex-wrap: wrap;
      padding-top: calc((var(--L-NAV-H) - 36px) / 2);
      padding-bottom: calc((var(--L-NAV-H) - 36px) / 2);
      align-items: center;
    }

    .nav__toggle { display: flex; }

    .nav__menu {
      width: 100%;
      flex-direction: column;
      align-items: flex-start;
      gap: 0;
      max-height: 0;
      overflow: hidden;
      transition: max-height var(--T-SLOW);
    }

    .nav__menu.is-open { max-height: 500px; }

    .nav__menu li { width: 100%; }

    .nav__link {
      display: block;
      padding: var(--S-SM) 0;
      font-size: var(--T-MD);
      border-bottom: 1px solid var(--C-BON-D);
    }
    .nav__link::after { display: none; }

    .nav__link--cta {
      display: inline-block;
      margin: var(--S-SM) 0;
      border-bottom: none !important;
    }
  }

/* #endregion */

/* #region |||||||||| BODY OFFSET — account for fixed nav |||||||||||*| */
  body { padding-top: var(--L-NAV-H); }
/* #endregion */