.site-wrap {
  min-height: 100vh;
  overflow: hidden;
}

/* ────── HEADER ────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.97);
  border-bottom-color: rgba(10, 30, 61, 0.08);
  box-shadow: 0 2px 20px rgba(10, 30, 61, 0.06);
}

.site-header.is-scrolled .site-logo__name,
.site-header.is-scrolled .site-nav a,
.site-header.is-scrolled .nav-submenu-toggle {
  color: var(--color-text);
}

.site-header.is-scrolled .site-header__tel {
  color: var(--color-primary);
  border-color: rgba(10, 30, 61, 0.18);
}

.site-header.is-scrolled .site-logo__mark {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
}

.site-header.is-scrolled .nav-toggle span {
  background: var(--color-text);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 32px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.site-logo__image {
  display: block;
  width: auto;
  height: 42px;
  max-width: 196px;
  object-fit: contain;
  filter: brightness(0) invert(1) grayscale(1);
  transition: filter 0.35s ease, opacity 0.35s ease;
}

.site-header.is-scrolled .site-logo__image {
  filter: none;
}

.site-logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 34px;
  font-family: var(--font-family-en);
  font-size: 16px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  transition: background 0.35s ease, border-color 0.35s ease;
}

.site-logo__name {
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
  color: #ffffff;
  transition: color 0.35s ease;
}

.site-nav {
  margin-left: auto;
  font-size: 15px;
  font-weight: 600;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link-row {
  display: inline-flex;
  align-items: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 6px 10px 16px;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.25s ease;
  white-space: nowrap;
}

.nav-submenu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px 10px 2px;
  color: rgba(255, 255, 255, 0.85);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-link:hover,
.nav-submenu-toggle:hover {
  color: #ffffff;
}

.dropdown-arrow {
  transition: transform 0.3s ease;
  opacity: 0.5;
  flex-shrink: 0;
}

.nav-item.is-open .dropdown-arrow,
.nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
  opacity: 1;
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  margin: 0;
  padding: 8px 0;
  list-style: none;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(10, 30, 61, 0.08);
  border-radius: 10px;
  box-shadow: 0 12px 40px rgba(10, 30, 61, 0.16), 0 2px 8px rgba(10, 30, 61, 0.06);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 200;
}

.nav-item:hover > .dropdown-menu,
.nav-item.is-open > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: background 0.2s ease, color 0.2s ease;
}

.dropdown-menu li a:hover {
  background: var(--color-navy-soft);
  color: var(--color-accent);
}

/* Scrolled header dropdown adjustments */
.site-header.is-scrolled .nav-link {
  color: var(--color-text);
}

.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-submenu-toggle:hover {
  color: var(--color-accent);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.site-header__tel {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 14px;
  font-family: var(--font-family-en);
  font-size: 14px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-button);
  transition: color 0.35s ease, border-color 0.35s ease, background 0.2s ease;
}

.site-header__tel:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-header.is-scrolled .site-header__tel:hover {
  background: var(--color-navy-soft);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: #ffffff;
  transition: background 0.35s ease;
}

/* QUICK MENU */
.quick-menu {
  position: fixed;
  top: 50%;
  right: 22px;
  z-index: 150;
  display: grid;
  gap: 8px;
  padding: 8px;
  background: rgba(16, 19, 24, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  box-shadow: 0 18px 48px rgba(10, 30, 61, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transform: translateY(-50%);
  backdrop-filter: blur(18px) saturate(1.15);
}

.quick-menu__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  font-size: 0;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.92);
  background: transparent;
  border: 0;
  box-shadow: none;
  transition: transform 0.24s ease, background-color 0.24s ease, color 0.24s ease;
}

.quick-menu__item:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  transform: translateX(-2px);
}

.quick-menu__item:focus-visible {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  outline: 3px solid #ffffff;
  outline-offset: 3px;
  transform: translateX(-2px);
}

.quick-menu__icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: currentColor;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 0.24s ease, background-color 0.24s ease;
}

.quick-menu__item:hover .quick-menu__icon-box {
  background: rgba(255, 255, 255, 0.16);
  transform: scale(1.04);
}

.quick-menu__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  font-size: 21px;
  line-height: 1;
}

/* 툴팁 디자인 */
.quick-menu__tooltip {
  position: absolute;
  top: 50%;
  right: calc(100% + 14px);
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  background: rgba(16, 19, 24, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  box-shadow: 0 14px 34px rgba(10, 30, 61, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translate(8px, -50%);
  transition: opacity 0.22s ease, transform 0.22s ease;
  backdrop-filter: blur(12px);
}

.quick-menu__tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 100%;
  transform: translateY(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent transparent rgba(16, 19, 24, 0.9);
}

.quick-menu__tooltip strong { color: #ffffff; }

.quick-menu__item:hover .quick-menu__tooltip,
.quick-menu__item:focus-visible .quick-menu__tooltip {
  opacity: 1;
  transform: translate(0, -50%);
}

/* FOOTER */
.site-footer {
  padding: 60px 0 30px;
  color: rgba(255, 255, 255, 0.7);
  background: var(--color-primary-dark);
  font-size: 14px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 30px;
}

@media (max-width: 768px) {
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .footer-cs {
    text-align: left;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    align-items: flex-start;
  }
}

.footer-brand {
  font-size: 24px;
  font-weight: 900;
  color: #ffffff;
  display: block;
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

.footer-cs {
  text-align: right;
}

.footer-cs strong {
  display: block;
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.footer-tel {
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 4px;
  line-height: 1;
}

.footer-cs-time {
  font-size: 13px;
  margin: 0;
}

.footer-divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 0 0 30px;
}

.footer-info p {
  margin: 0 0 8px;
  line-height: 1.6;
}

.footer-info .divider {
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.2);
}

.footer-info a {
  color: inherit;
  transition: color 0.2s;
}

.footer-info a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-weight: 500;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-links .privacy-link {
  color: #ffffff;
  font-weight: 700;
}

.footer-copyright {
  margin: 0;
  font-size: 13px;
}

.page-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: transform 0.2s ease, background 0.2s ease;
}

.page-top:hover {
  transform: translateY(-2px);
  background: var(--color-accent);
}

/* ────── CERTIFICATION IMAGES ────── */
.cert-card__image-wrap {
  width: 100%;
  height: 220px;
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 20px;
  background: #f8f9fa;
  border: 1px solid #eaeaea;
}

.cert-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.cert-card:hover .cert-card__image-wrap img {
  transform: scale(1.05);
}