/* Header + utility bar (shared layout) */
  /* Utility bar */
  .utility-bar {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.75);
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .utility-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1600px;
    height: 40px;
  }

  .utility-left {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .utility-left .phone {
    color: #fff;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0;
  }

  .utility-right {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .utility-right a {
    opacity: 0.9;
    transition: opacity 0.2s;
  }

  .utility-right a:hover {
    opacity: 1;
    color: #fff;
  }

  .utility-divider {
    width: 1px;
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
  }

  /* Header */
  .site-header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 100;
  }

  /* 1:3:1 grid — intro top-navigation-bar와 동일 비율로 nav 시각 중앙 정렬 */
  .site-header .container {
    display: grid;
    grid-template-columns: 1fr 3fr 1fr;
    align-items: center;
    max-width: 1600px;
    height: 84px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-self: start;
  }

  .logo-mark {
    width: 140px;
    display: grid;
    place-items: center;
    background: transparent;
    border-radius: 0;
    padding: 0;
    flex-shrink: 0;
  }

  .logo-mark-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }

  @media (max-width: 768px) {
    .logo-mark {
      width: 110px;
      height: auto;
    }
  }

  .logo-mark svg {
    width: 24px;
    height: 24px;
  }

  .logo-text h1 {
    font-size: 20px;
    font-weight: 800;
    color: var(--navy);
    letter-spacing: -0.03em;
  }

  .logo-text p {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 2px;
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--white);
    cursor: pointer;
    flex-shrink: 0;
  }

  .nav-toggle__bar {
    display: block;
    width: 18px;
    height: 2px;
    margin: 0 auto;
    background: var(--navy);
    border-radius: 1px;
    transition: transform 0.25s, opacity 0.25s;
  }

  .site-header.is-nav-open .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.is-nav-open .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-nav-open .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .main-nav {
    justify-self: center;
    width: 100%;
  }

  .main-nav__list {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    white-space: nowrap;
  }

  .main-nav__item {
    position: relative;
  }

  .main-nav__item.has-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 18px;
  }

  .main-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink-2);
    padding: 8px 14px;
    position: relative;
    transition: color 0.2s, background 0.2s;
    border-radius: var(--radius-lg);
  }

  .main-nav__chevron {
    flex-shrink: 0;
    opacity: 0.55;
    transition: transform 0.25s;
  }

  .main-nav__item:hover>.main-nav__link .main-nav__chevron,
  .main-nav__item.is-open>.main-nav__link .main-nav__chevron,
  .main-nav__item:focus-within>.main-nav__link .main-nav__chevron {
    transform: rotate(180deg);
    opacity: 1;
  }

  .main-nav__dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    padding: 8px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s;
    z-index: 120;
  }

  .main-nav__item:hover>.main-nav__dropdown,
  .main-nav__item.is-open>.main-nav__dropdown,
  .main-nav__item:focus-within>.main-nav__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .main-nav__dropdown li+li {
    margin-top: 2px;
  }

  .main-nav__dropdown a {
    display: block;
    padding: 11px 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink-2);
    border-radius: calc(var(--radius-lg) - 2px);
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
  }

  .main-nav__dropdown a:hover,
  .main-nav__dropdown a:focus-visible {
    color: var(--blue);
    background: var(--sky-2);
  }

  .header-cta {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-self: end;
  }

/* Header / utility — responsive */
@media (max-width: 1024px) {
    .utility-bar .container {
      padding: 0 20px;
    }

    .site-header .container {
      height: 72px;
      padding: 0 20px;
    }

    .header-cta .btn {
      padding: 10px 16px;
      font-size: 13px;
    }

    .nav-toggle {
      display: flex;
    }

    .main-nav__item.has-dropdown::after {
      display: none;
    }

    .main-nav {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      display: none;
      padding: 16px 24px 24px;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
      box-shadow: var(--shadow-md);
    }

    .site-header.is-nav-open .main-nav {
      display: block;
    }

    .main-nav__list {
      flex-direction: column;
      align-items: stretch;
      gap: 4px;
      white-space: normal;
    }

    .main-nav__link {
      width: 100%;
      justify-content: space-between;
      padding: 14px 12px;
    }

    .main-nav__link::after {
      display: none;
    }

    .main-nav__dropdown {
      position: static;
      transform: none;
      min-width: 0;
      margin-top: 0;
      padding: 0 0 0 12px;
      background: transparent;
      border: 0;
      border-left: 2px solid var(--line-2);
      border-radius: 0;
      box-shadow: none;
      opacity: 1;
      visibility: hidden;
      max-height: 0;
      overflow: hidden;
      pointer-events: none;
      transition: max-height 0.3s ease, visibility 0.3s, padding 0.3s;
    }

    .main-nav__item:hover>.main-nav__dropdown,
    .main-nav__item:focus-within>.main-nav__dropdown {
      transform: none;
      box-shadow: none;
      visibility: hidden;
      pointer-events: none;
      max-height: 0;
      padding: 0 0 0 12px;
      margin-bottom: 0;
    }

    .main-nav__item.is-open>.main-nav__dropdown {
      visibility: visible;
      pointer-events: auto;
      max-height: 320px;
      padding: 6px 0 10px 12px;
      margin-bottom: 4px;
    }

    .main-nav__dropdown a {
      padding: 10px 12px;
      font-size: 15px;
    }

    .site-header .container {
      display: flex;
      align-items: center;
      gap: 10px;
      position: relative;
    }

    .logo {
      justify-self: auto;
    }

    .main-nav {
      justify-self: auto;
      width: auto;
    }

    .main-nav__list {
      justify-content: flex-start;
      gap: 4px;
    }

    .header-cta {
      justify-self: auto;
      margin-left: auto;
    }

    .nav-toggle {
      flex-shrink: 0;
    }

    body.nav-open {
      overflow: hidden;
    }
}

@media (max-width: 640px) {
    .utility-right {
      display: none;
    }

    .utility-bar .container {
      height: 36px;
      justify-content: center;
    }

    .utility-left .phone {
      font-size: 12px;
    }

    .site-header .container {
      height: 64px;
    }
}