/*
 * Shared frame for Academic, Professional and Digital/AI.
 * Page-specific styles govern the content inside each active panel; this file
 * owns the geometry that should remain constant while navigating between pages.
 */

.tabbed-page {
  --page-edge: max(var(--editorial-pad), calc((100vw - var(--editorial-max)) / 2));
  --tab-tone-1: #eee9e1;
  --tab-tone-2: #f4d979;
  --tab-tone-3: var(--nordic-blue);
  --tab-tone-4: var(--navy);
  --active-tab-tone: var(--tab-tone-1);
  --panel-gutter: clamp(1rem, 2.5vw, 2.25rem);
  background: #fffdf8;
  flex: 1 0 auto;
  min-height: 100vh;
}

.tabbed-page[data-active-tone="2"] {
  --active-tab-tone: var(--tab-tone-2);
}

.tabbed-page[data-active-tone="3"] {
  --active-tab-tone: var(--tab-tone-3);
}

.tabbed-page[data-active-tone="4"] {
  --active-tab-tone: var(--tab-tone-4);
}

/* Related palettes give each section its own register without changing the system */

.academic-page .tabbed-page {
  --tab-tone-1: #eee9e1;
  --tab-tone-2: #f4d979;
  --tab-tone-3: #dfeaf3;
  --tab-tone-4: #9f626b;
}

.professional-page .tabbed-page {
  --tab-tone-1: #e8edf1;
  --tab-tone-2: #efc7a5;
  --tab-tone-3: #ccd9d2;
  --tab-tone-4: #5f788c;
}

.digital-page .tabbed-page {
  --tab-tone-1: #e4edf3;
  --tab-tone-2: #c7e0df;
  --tab-tone-3: #d2d8ec;
  --tab-tone-4: #f1ece2;
}

/* One hero grid, regardless of page */

.tabbed-page .page-hero {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(247, 246, 241, 0.99) 0%, rgba(247, 246, 241, 0.95) 68%, rgba(247, 246, 241, 0.62) 100%),
    repeating-linear-gradient(90deg, #ffffff 0 10px, rgba(157, 175, 239, 0.48) 10px 14px, #ffffff 14px 24px);
  display: grid;
  gap: clamp(2rem, 4vw, 4rem);
  grid-template-columns: minmax(0, 1fr) minmax(240px, 310px);
  min-height: 370px;
  padding: 4.65rem var(--page-edge) 1.25rem;
}

.tabbed-page .page-hero__copy,
.tabbed-page .academic-hero__copy,
.tabbed-page .professional-hero__copy,
.tabbed-page .digital-hero__copy {
  grid-column: 1;
  max-width: none;
  min-width: 0;
}

.tabbed-page .page-hero h1 {
  color: var(--navy);
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  font-size: clamp(2.55rem, 4vw, 4.05rem);
  font-weight: 760;
  letter-spacing: 0;
  line-height: 0.99;
  margin: 0;
  max-width: none;
}

.tabbed-page .page-hero h1 > span,
.tabbed-page .page-hero__lede > span,
.tabbed-page .academic-hero__lede > span,
.tabbed-page .professional-hero__lede > span,
.tabbed-page .digital-hero__lede > span {
  display: block;
}

.tabbed-page .page-hero h1 > span {
  white-space: nowrap;
}

.tabbed-page .page-hero .page-hero__lede {
  color: #26343f !important;
  font-size: clamp(1rem, 1.25vw, 1.18rem) !important;
  line-height: 1.55 !important;
  margin: 1.15rem 0 0;
  max-width: none !important;
}

.tabbed-page .page-hero__aside {
  grid-column: 2;
  justify-self: end;
}

.tabbed-page .hero-postit {
  margin-right: 0.45rem;
  width: min(100%, 300px);
}

/* One tab strip */

.tabbed-page .page-tabs {
  align-items: end;
  background: #fffdf8;
  border-bottom: 0;
  display: grid;
  gap: clamp(0.72rem, 1.25vw, 0.95rem);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  isolation: isolate;
  margin: 0;
  padding: 0.52rem var(--page-edge) 0;
  position: relative;
}

.tabbed-page .page-tabs::after {
  background: var(--navy);
  bottom: 0;
  content: "";
  height: 2px;
  left: var(--page-edge);
  position: absolute;
  right: var(--page-edge);
  z-index: 0;
}

.tabbed-page .page-tabs > button,
.tabbed-page .page-tabs > button:nth-child(2),
.tabbed-page .page-tabs > button:nth-child(3),
.tabbed-page .page-tabs > button:nth-child(4) {
  appearance: none;
  background: var(--tab-tone-1);
  border: 2px solid var(--navy);
  border-bottom: 0;
  border-radius: 7px 7px 0 0;
  box-shadow: none;
  color: var(--navy);
  cursor: pointer;
  font: inherit;
  margin-bottom: 2px;
  min-height: 76px;
  min-width: 0;
  overflow: hidden;
  padding: 0.54rem clamp(0.72rem, 1.25vw, 1rem) 0.5rem;
  position: relative;
  text-align: left;
  transform: none;
  transition: filter 160ms ease;
  width: 100%;
  z-index: 1;
}

.tabbed-page .page-tabs > button:nth-child(2) {
  background: var(--tab-tone-2);
}

.tabbed-page .page-tabs > button:nth-child(3) {
  background: var(--tab-tone-3);
}

.tabbed-page .page-tabs > button:nth-child(4) {
  background: var(--tab-tone-4);
  color: white;
}

.tabbed-page .page-tabs > button:hover,
.tabbed-page .page-tabs > button:focus-visible {
  box-shadow: none;
  filter: brightness(0.965);
  transform: none;
}

.tabbed-page .page-tabs > button:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: -4px;
}

.tabbed-page .page-tabs > button[aria-selected="true"],
.tabbed-page .page-tabs > button[aria-selected="true"]:hover,
.tabbed-page .page-tabs > button[aria-selected="true"]:focus-visible {
  box-shadow: none;
  margin-bottom: 0;
  transform: none;
  z-index: 2;
}

.tabbed-page .page-tabs > button span,
.tabbed-page .page-tabs > button strong {
  display: block;
}

.tabbed-page .page-tabs > button span {
  color: var(--red);
  font-size: 0.67rem;
  font-weight: 850;
  letter-spacing: 0.065em;
  line-height: 1.15;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}

.tabbed-page .page-tabs > button:nth-child(4) span {
  color: #f4d979;
}

.digital-page .tabbed-page .page-tabs > button:nth-child(4) {
  color: var(--navy);
}

.digital-page .tabbed-page .page-tabs > button:nth-child(4) span {
  color: var(--red);
}

.tabbed-page .page-tabs > button strong {
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  font-size: clamp(0.72rem, 0.85vw, 0.86rem);
  line-height: 1.1;
  white-space: nowrap;
}

/* The active tab colour continues into a centred content column. */

.tabbed-page .page-content {
  background: #fffdf8 !important;
  flex: 1 0 auto;
  isolation: isolate;
  margin-bottom: 10px;
  min-height: 0;
  position: relative;
  transition: background-color 160ms ease;
}

.tabbed-page .page-content::before {
  background: var(--active-tab-tone);
  border: solid var(--navy);
  border-radius: 0 0 10px 10px;
  border-width: 0 2px 2px;
  bottom: 0;
  box-sizing: border-box;
  content: "";
  left: var(--page-edge);
  position: absolute;
  right: var(--page-edge);
  top: 0;
  transition: background-color 160ms ease;
  z-index: 0;
}

.tabbed-page .page-content > * {
  position: relative;
  z-index: 1;
}

.tabbed-page .academic-page-content > .academic-zone,
.tabbed-page .digital-page-content > .digital-story,
.tabbed-page .digital-page-content > .digital-projects {
  background: transparent;
  border-top: 0;
}

.tabbed-page .academic-page-content > .academic-zone,
.tabbed-page .professional-panels,
.tabbed-page .digital-page-content > .digital-story,
.tabbed-page .digital-page-content > .digital-projects {
  padding-left: calc(var(--page-edge) + var(--panel-gutter));
  padding-right: calc(var(--page-edge) + var(--panel-gutter));
}

.tabbed-page .professional-panels {
  background: transparent !important;
}

.tabbed-page .digital-page-content > .digital-story {
  margin: 0;
}

@media (min-width: 681px) {
  .digital-page .digital-section-head {
    align-items: center;
  }

  .digital-page .digital-section-head .project-tab-list {
    margin-left: auto;
  }
}

/* Dark fourth-panel treatment shared by otherwise bespoke content */

.tabbed-page[data-active-tone="4"] .professional-panel__intro h2,
.tabbed-page[data-active-tone="4"] .professional-records h3,
.tabbed-page[data-active-tone="4"] .digital-section-head h2 {
  color: white;
}

.tabbed-page[data-active-tone="4"] .professional-panel__intro > p,
.tabbed-page[data-active-tone="4"] .professional-crosslink {
  color: rgba(255, 255, 255, 0.78);
}

.tabbed-page[data-active-tone="4"] .professional-crosslink a {
  color: #f4d979;
  text-decoration-color: rgba(244, 217, 121, 0.72);
}

/* Governance uses a dark panel, but its role records remain white cards. */
.tabbed-page[data-active-tone="4"] .professional-record__head strong {
  color: var(--navy);
}

.tabbed-page[data-active-tone="4"] .professional-record p {
  color: var(--muted);
}

.tabbed-page[data-active-tone="4"] .professional-record a {
  color: var(--navy);
  text-decoration-color: rgba(126, 64, 71, 0.62);
}

.tabbed-page[data-active-tone="4"] .professional-record a:hover,
.tabbed-page[data-active-tone="4"] .professional-record a:focus-visible {
  color: var(--red);
}

.tabbed-page[data-active-tone="4"] .professional-scope span {
  background: #f4d979;
}

@media (max-width: 980px) {
  .tabbed-page .page-hero {
    gap: 1.2rem;
    grid-template-columns: 1fr;
    min-height: 0;
    padding-bottom: 1.3rem;
  }

  .tabbed-page .page-hero__aside {
    grid-column: 1;
    justify-self: start;
  }

  .tabbed-page .hero-postit {
    margin-right: 0;
    width: min(100%, 420px);
  }

  .tabbed-page .page-tabs {
    gap: 0.8rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0.9rem;
  }

  .tabbed-page .page-tabs > button,
  .tabbed-page .page-tabs > button:nth-child(2),
  .tabbed-page .page-tabs > button:nth-child(3),
  .tabbed-page .page-tabs > button:nth-child(4) {
    border: 2px solid var(--navy);
    border-radius: 7px;
    box-shadow: 4px 4px 0 rgba(126, 64, 71, 0.78);
    margin-bottom: 0;
    min-height: 74px;
  }

  .tabbed-page .page-tabs > button:hover,
  .tabbed-page .page-tabs > button:focus-visible {
    box-shadow: 6px 6px 0 rgba(126, 64, 71, 0.82);
    transform: translate(-1px, -1px);
  }

  .tabbed-page .page-tabs > button[aria-selected="true"],
  .tabbed-page .page-tabs > button[aria-selected="true"]:hover,
  .tabbed-page .page-tabs > button[aria-selected="true"]:focus-visible {
    border-bottom: 5px solid var(--red);
    box-shadow: 4px 4px 0 rgba(126, 64, 71, 0.84);
    transform: none;
  }

  .tabbed-page .page-tabs > button strong {
    font-size: 0.84rem;
  }
}

@media (max-width: 680px) {
  .tabbed-page .page-hero {
    padding-top: 9.5rem;
  }

  .tabbed-page .page-hero h1 {
    font-size: clamp(2.3rem, 10vw, 3.35rem);
  }

  .tabbed-page .page-hero h1 > span {
    white-space: normal;
  }

  .tabbed-page .page-tabs {
    gap: 0.65rem;
    grid-template-columns: 1fr;
    padding-inline: max(1rem, var(--editorial-pad));
  }

  .tabbed-page .page-tabs::after {
    left: max(1rem, var(--editorial-pad));
    right: max(1rem, var(--editorial-pad));
  }

  .tabbed-page .page-tabs > button,
  .tabbed-page .page-tabs > button:nth-child(2),
  .tabbed-page .page-tabs > button:nth-child(3),
  .tabbed-page .page-tabs > button:nth-child(4) {
    min-height: 0;
    padding-block: 0.68rem 0.62rem;
    transform: none;
  }

  .tabbed-page .page-tabs > button strong {
    font-size: 0.86rem;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tabbed-page .page-tabs > button,
  .tabbed-page .page-content {
    transition: none;
  }

  .tabbed-page .page-tabs > button,
  .tabbed-page .page-tabs > button:hover,
  .tabbed-page .page-tabs > button:focus-visible,
  .tabbed-page .page-tabs > button[aria-selected="true"] {
    transform: none;
  }
}

.editorial-theme .tabbed-page {
  min-height: 0;
}