.certifications_page {
  background: var(--y-color-surface-default, #fff);
  color: var(--y-color-text-primary, #202737);
}

.certifications_hero {
  position: relative;
  height: 620px;
  overflow: hidden;
  background: #fff;
}

.certifications_hero_img,
.certifications_hero_shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.certifications_hero_img {
  object-fit: cover;
  object-position: center 52%;
}

.certifications_hero_shade {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 48%, rgba(0, 0, 0, .18) 100%);
}

.certifications_hero_copy {
  position: absolute;
  z-index: 1;
  right: var(--y-layout-page-gutter);
  bottom: 58px;
  left: var(--y-layout-page-gutter);
  color: #fff;
}

.certifications_hero_copy h1 {
  margin: 0;
  font-family: var(--y-font-serif, "Playfair", serif);
  font-size: var(--type-section, 64px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -.05em;
}

.certifications_showcase {
  width: 100%;
  padding: var(--y-layout-section-space) var(--y-layout-page-gutter);
  background: #fff;
}

.certifications_lead {
  display: flex;
  width: min(780px, 100%);
  flex-direction: column;
  align-items: flex-start;
  gap: var(--y-layout-heading-copy-gap);
  margin-bottom: 72px;
  text-align: left;
}

.certifications_lead h2 {
  margin: 0;
  color: var(--y-color-text-accent, #0b328b);
}

.certifications_lead_copy {
  width: 100%;
  margin: 0;
  color: var(--y-color-text-primary, #202737);
}

.certifications_accordion {
  width: 100%;
  border-top: 1px solid var(--y-color-border-subtle, #dce2ee);
}

.certifications_scroll_stage {
  position: relative;
  height: calc(100vh + 2000px);
}

.certifications_sticky {
  position: sticky;
  top: 92px;
}

.certification_item {
  border-bottom: 1px solid var(--y-color-border-subtle, #dce2ee);
}

.certification_item h2 { margin: 0; }

.certification_toggle {
  appearance: none;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 32px;
  align-items: center;
  gap: 24px;
  width: 100%;
  min-height: 112px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--y-color-text-primary, #202737);
  text-align: left;
  cursor: pointer;
}
.certification_toggle:focus-visible { outline: 2px solid var(--y-color-text-accent, #0b328b); outline-offset: 4px; }

.certification_number {
  color: var(--y-color-text-accent, #0b328b);
  font: 500 var(--type-section)/1.3 var(--y-font-serif);
  letter-spacing: -.05em;
}

.certification_name {
  font: 400 var(--type-card, 32px)/1.3 var(--y-font-sans, "Pretendard", sans-serif);
  letter-spacing: -.03em;
}

.certification_symbol {
  position: relative;
  width: 22px;
  height: 22px;
  justify-self: end;
  color: var(--y-color-text-accent, #0b328b);
}

.certification_symbol::before,
.certification_symbol::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 1px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 420ms cubic-bezier(.22, 1, .36, 1);
}

.certification_symbol::after { transform: translate(-50%, -50%) rotate(90deg); }
.certification_item.is_open .certification_symbol::after { transform: translate(-50%, -50%) rotate(0deg); }

.certification_panel {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  opacity: 0;
  transition:
    grid-template-rows 880ms cubic-bezier(.22, 1, .36, 1),
    opacity 420ms ease,
    visibility 0s linear 880ms;
}

.certification_item.is_open .certification_panel {
  grid-template-rows: 1fr;
  visibility: visible;
  opacity: 1;
  transition:
    grid-template-rows 880ms cubic-bezier(.22, 1, .36, 1),
    opacity 520ms ease 90ms,
    visibility 0s;
}

.certification_panel_inner {
  display: grid;
  grid-template-columns: 120px minmax(0, 220px) minmax(0, 560px);
  gap: 24px;
  min-height: 0;
  overflow: hidden;
  padding: 8px 54px 64px 0;
  opacity: .94;
  transform: translate3d(0, 12px, 0);
  transition:
    opacity 560ms ease,
    transform 880ms cubic-bezier(.22, 1, .36, 1);
}

.certification_item.is_open .certification_panel_inner {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.certification_mark_wrap {
  grid-column: 2;
  display: grid;
  place-items: center;
  justify-self: start;
  width: 100%;
  min-height: 252px;
  background: transparent;
}

.certification_mark {
  display: block;
  width: 176px;
  height: 176px;
  max-width: calc(100% - 12px);
  max-height: 176px;
  object-fit: contain;
}

/* Normalize the artwork, not just the image file bounds: source margins vary. */
#cert-panel-01 .certification_mark { scale: 1.12; }
#cert-panel-02 .certification_mark { scale: .88; }
#cert-panel-03 .certification_mark { scale: 1.04; }
#cert-panel-04 .certification_mark { scale: .9; }

.certification_panel_inner > p {
  grid-column: 3;
  align-self: center;
  width: min(560px, 100%);
  margin: 0;
  padding: 0 0 0 32px;
  border-left: 1px solid var(--y-color-border-blue, #dae4f4);
  color: var(--y-color-text-primary, #202737);
}

.certifications_note {
  margin: 0;
  padding: 0 var(--y-layout-page-gutter) var(--y-layout-section-space);
  color: var(--y-color-text-secondary, #6b7487);
}

@media (max-width: 1440px) {
  .certifications_hero { height: 540px; }
  .certifications_hero_copy { bottom: 50px; }
  .certifications_lead { margin-bottom: 60px; }
  .certification_toggle {
    grid-template-columns: 96px minmax(0, 1fr) 28px;
    min-height: 98px;
  }
  .certification_panel_inner {
    grid-template-columns: 96px minmax(0, 200px) minmax(0, 500px);
    padding: 8px 44px 44px 0;
  }
  .certification_mark_wrap { min-height: 214px; }
  .certification_mark { max-width: 180px; max-height: 190px; }
  .certifications_scroll_stage { height: calc(100vh + 1800px); }
  .certifications_sticky { top: 82px; }
}

@media (max-width: 1024px) {
  .certifications_hero { height: 480px; }
  .certifications_hero_copy { bottom: 42px; }
  .certifications_lead { margin-bottom: 48px; }
  .certifications_lead_copy { width: min(560px, 100%); }
  .certification_toggle {
    grid-template-columns: 76px minmax(0, 1fr) 26px;
    min-height: 88px;
    gap: 18px;
  }
  .certification_panel_inner {
    grid-template-columns: 76px minmax(0, 170px) minmax(0, 400px);
    gap: 18px;
    padding: 8px 36px 36px 0;
  }
  .certification_mark_wrap { min-height: 196px; }
  .certification_mark { max-width: 150px; max-height: 158px; }
  .certification_panel_inner > p { padding-left: 24px; }
  .certifications_scroll_stage { height: calc(100vh + 1600px); }
  .certifications_sticky { top: 76px; }
}

@media (max-width: 768px) {
  .certifications_hero { height: 420px; }
  .certifications_hero_img { object-position: 42% center; }
  .certifications_hero_copy { bottom: 34px; }
  .certifications_lead { margin-bottom: 42px; }
  .certification_toggle {
    grid-template-columns: 54px minmax(0, 1fr) 24px;
    min-height: 80px;
    gap: 14px;
  }
  .certification_panel_inner {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 14px;
    padding: 0 0 30px;
  }
  .certification_mark_wrap {
    grid-column: 2;
    min-height: 200px;
  }
  .certification_panel_inner > p {
    grid-column: 2;
    align-self: start;
    padding: 20px 0 0;
    border-top: 1px solid var(--y-color-border-blue, #dae4f4);
    border-left: 0;
  }
  /* Phones: an ordinary list, every certification open (no pinned stage). */
  .certifications_scroll_stage { height: auto; }
  .certifications_sticky { position: static; }
  /* Open from the first paint: no expanding animation that grows the page. */
  .certification_item .certification_panel,
  .certification_item.is_open .certification_panel,
  .certification_item .certification_panel_inner,
  .certification_item.is_open .certification_panel_inner { transition: none; }
}

@media (max-width: 520px) {
  .certifications_hero { height: 360px; }
  .certifications_hero_copy { bottom: 28px; }
  .certifications_lead { margin-bottom: 36px; }
  .certification_toggle {
    grid-template-columns: 42px minmax(0, 1fr) 22px;
    min-height: 72px;
    gap: 10px;
  }
  .certification_panel_inner {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 10px;
    padding-bottom: 24px;
  }
  .certification_mark_wrap { min-height: 172px; }
  .certification_mark { max-width: 126px; max-height: 134px; }
}

@media (min-width: 769px) and (max-height: 850px) {
  .certifications_sticky { top: 76px; }
  .certification_toggle { min-height: 82px; }
  .certification_panel_inner { padding-bottom: 28px; }
  .certification_mark_wrap { min-height: 176px; }
  .certification_mark { max-width: 140px; max-height: 148px; }
}

@media (prefers-reduced-motion: reduce) {
  .certification_panel,
  .certification_panel_inner,
  .certification_symbol::after { transition: none; }
}