/* Public visual contract. Panels own their outside corners; joined inner rows
   remain straight. Keep this after page styles, including mobile overrides. */
:root {
  --brand-blue: #2457ff;
  --brand-ink: #11151f;
  --brand-muted: #556171;
  --brand-surface: #f2f5fc;
  --brand-line: rgba(36, 87, 255, 0.14);
  --brand-panel-radius: 24px;
  --brand-card-radius: 20px;
  --brand-control-radius: 12px;
  --brand-chip-radius: 8px;
  --brand-gutter: clamp(20px, 4vw, 68px);
  --brand-shadow: 0 16px 48px rgba(23, 36, 76, 0.07);
  --brand-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ui-radius: var(--brand-control-radius);
}

/* Large editorial panels, including their mobile versions. */
:is(.hsdt-page, .showcase-page)
  :is(
    .project-observatory,
    .science-workbench,
    .pulse-board,
    .project-workbench,
    .project-intake-board,
    .faculty-board,
    .team-builder-workspace,
    .team-directory-profile,
    .trajectory-map,
    .program-page-workbench,
    .department-grid,
    .academic-lead-card,
    .project-reel,
    .team-assembly,
    .research-workbench,
    .research-radar,
    .showcase-crosslink
  ) {
  border: 1px solid var(--brand-line);
  border-radius: var(--brand-panel-radius);
  overflow: hidden;
  isolation: isolate;
  box-shadow: var(--brand-shadow);
}
.hsdt-page :is(.project-observatory, .science-workbench, .pulse-board) {
  margin-inline: var(--brand-gutter);
}
.hsdt-page .project-selector {
  background: var(--brand-surface);
}
.hsdt-page .project-select {
  border-radius: var(--brand-control-radius);
}
.hsdt-page .project-select small {
  padding-inline-end: 12px;
}
.hsdt-page .project-deck {
  border-radius: var(--brand-card-radius);
  overflow: hidden;
}
.hsdt-page .project-deck-nav {
  overflow: hidden;
}
.hsdt-page .hero-terminal {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--brand-card-radius);
}

/* The new experiences use the same surfaces, scale and typography. */
:is(.experience-section, .experience-dialog) {
  font-family: "Golos Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
}
.experience-eyebrow,
.experience-card small,
.demo-screen-head,
.demo-screen-foot,
.demo-switch button,
.search-results a span {
  font-family: var(--brand-mono);
}
.experience-eyebrow {
  color: var(--brand-blue);
}
.experience-heading h2 {
  font-size: clamp(2rem, 4.2vw, 4rem);
  font-weight: 650;
  letter-spacing: -0.05em;
  line-height: 1.08;
}
.experience-section :is(.experience-card, .home-route) {
  border-radius: var(--brand-panel-radius);
  border-color: var(--brand-line);
  box-shadow: var(--brand-shadow);
}
.experience-section :is(.team-empty, .program-insights),
.program-insights,
.home-faculty-grid a,
.home-about-media img,
.home-leadership > img,
.demo-visual {
  border-radius: var(--brand-card-radius);
}
.experience-section .home-route:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(36, 87, 255, 0.11);
}
.experience-section .compare-grid:empty {
  border-radius: var(--brand-panel-radius);
  background: var(--brand-surface);
  border-color: #b5c4e3;
}
.program-insights {
  margin-inline: var(--brand-gutter);
  padding: 28px;
  border: 1px solid var(--brand-line);
}
.experience-dialog {
  border-radius: var(--brand-panel-radius);
  border-color: var(--brand-line);
  padding: 32px;
}
.experience-dialog > header h2 {
  font-weight: 650;
}
.experience-dialog .practice-detail pre {
  border-radius: var(--brand-control-radius);
}
.experience-dialog .practice-hint {
  border-radius: 0 var(--brand-control-radius) var(--brand-control-radius) 0;
}
.experience-dialog .practice-list button {
  border-radius: var(--brand-control-radius);
}
.experience-dialog .practice-list button[aria-pressed="true"] {
  background: #edf2ff;
  color: #173cb6;
}
.experience-dialog .search-results a {
  border-radius: var(--brand-control-radius);
}
.experience-dialog .search-field input {
  border-radius: var(--brand-control-radius);
}
.experience-dialog :is(.dialog-close, .remove-compare) {
  border-radius: var(--brand-control-radius);
}
.practice-toast {
  border-radius: var(--brand-card-radius);
}

/* Standalone actions have one shape. Segmented lists keep shared seams. */
:is(.hsdt-page, .showcase-page, .code-lab-page, .ai-lab-page)
  :is(
    .experience-button,
    .showcase-primary,
    .showcase-secondary,
    .button-primary,
    .button-ghost,
    .form-submit,
    .footer-contact-button,
    .showcase-crosslink > a,
    .section-page-link > a,
    .lab-practice-button,
    .hsdt-app-search,
    .hsdt-app-menu,
    .hsdt-app-nav-lab,
    .hsdt-app-help,
    .dialog-close,
    .remove-compare,
    .program-page-levels button,
    .demo-switch button,
    .choice-row label,
    .team-interest-form select,
    .lab-help-button,
    .lab-file-create input,
    .lab-run-button,
    .lab-reset-button,
    .lab-ai-button,
    .intake-protocol > a
  ) {
  border-radius: var(--brand-control-radius);
}
.experience-section .experience-button {
  min-height: 48px;
  padding: 12px 20px;
}
.experience-section .choice-row label {
  min-height: 48px;
  border-color: var(--brand-line);
}
.experience-section .choice-row label:has(input:checked) {
  border-color: var(--brand-blue);
}
.experience-section .demo-switch button[aria-pressed="true"] {
  background: var(--brand-blue);
  border-color: var(--brand-blue);
  color: #fff;
}
:is(.hsdt-page, .showcase-page)
  :is(
    .compare-tags li,
    .faculty-tags span,
    .project-tech span,
    .intake-stack span,
    .department-grid footer span,
    .project-stack span,
    .project-reel-tech span,
    .faculty-index > span,
    .showcase-kicker > span,
    .showcase-section-index > span,
    .section-index > span:first-child,
    .team-directory-copy > header small,
    .team-member-card figure > span,
    .faculty-portrait > span
  ) {
  border-radius: var(--brand-chip-radius);
}
.showcase-page
  :is(.project-filter, .team-presets, .team-directory-nav, .team-members-grid) {
  gap: 8px;
  background: transparent;
}
.showcase-page
  :is(
    .project-filter > button,
    .team-presets > button,
    .team-directory-nav > button,
    .team-directory-slot
  ) {
  border: 1px solid var(--brand-line);
  border-radius: var(--brand-control-radius);
}
.showcase-page
  :is(
    .project-filter > button,
    .team-presets > button,
    .team-directory-nav > button
  ).is-active {
  border-color: var(--brand-blue);
}
.showcase-page
  :is(.team-outcome-strip, .team-member-card, .team-format-grid article) {
  border: 1px solid var(--brand-line);
  border-radius: var(--brand-card-radius);
  overflow: hidden;
}
.showcase-page .project-rail {
  padding: 8px;
  gap: 8px;
}
.showcase-page .project-rail button {
  border-radius: var(--brand-control-radius);
}
.showcase-page .showcase-crosslink {
  margin: 0 var(--brand-gutter) 64px;
  padding-inline: clamp(24px, 4vw, 58px);
}
.showcase-page :is(.topology-core, .topology-node, .assembly-layer) {
  border-radius: var(--brand-control-radius);
}

/* Programme rows must retain their content height inside the scrolling list. */
.showcase-page .program-page-directory ol {
  display: block;
  min-height: 0;
}
.showcase-page .program-page-directory li {
  min-height: 0;
}
.showcase-page .program-page-directory li button {
  min-height: 84px;
  height: auto;
  padding: 14px 18px;
  gap: 12px;
}
.showcase-page .program-page-directory li button > span:nth-child(2) {
  display: grid;
  gap: 5px;
  min-width: 0;
}
.showcase-page .program-page-directory li button :is(strong, small) {
  line-height: 1.4;
}
.showcase-page .program-page-directory li button small {
  color: var(--brand-muted);
}
.showcase-page .program-page-directory li.is-active button small {
  color: #fff;
}

/* The contact form is part of the same card system, including its inputs. */
.hsdt-page .contact-section {
  margin: 64px var(--brand-gutter);
  border: 1px solid var(--brand-line);
  border-radius: var(--brand-panel-radius);
  box-shadow: var(--brand-shadow);
}
.hsdt-page :is(.contact-copy, .contact-form) {
  padding-inline: clamp(24px, 3.5vw, 52px);
}
.hsdt-page .contact-form :is(input[type="text"], textarea) {
  padding: 14px 16px;
  border: 1px solid #c4cee1;
  border-radius: var(--brand-control-radius);
  background: rgba(255, 255, 255, 0.8);
}
.hsdt-page .contact-form :is(input[type="text"], textarea):focus {
  outline: 3px solid rgba(36, 87, 255, 0.16);
  outline-offset: 1px;
  border-color: var(--brand-blue);
  background: #fff;
}
.hsdt-page .contact-field {
  gap: 10px;
}

/* Lab windows retain their compact layout inside a rounded workspace. */
:is(.code-lab-page, .ai-lab-page) {
  background: var(--brand-surface);
}
.code-lab-page .lab-workspace,
.ai-lab-page .ai-workspace {
  min-width: 0;
  margin: 12px 20px;
  border: 1px solid var(--brand-line);
  border-radius: var(--brand-panel-radius);
  overflow: hidden;
  background: #fff;
}
.code-lab-page .lab-shortcuts {
  border-radius: var(--brand-card-radius);
}
.code-lab-page .lab-ai-panel {
  border-top-left-radius: var(--brand-panel-radius);
  border-bottom-left-radius: var(--brand-panel-radius);
}
.ai-lab-page .ai-composer {
  border-radius: var(--brand-card-radius);
  border-color: var(--brand-line);
  box-shadow: var(--brand-shadow);
}
:is(.code-lab-page, .ai-lab-page)
  :is(
    .ai-welcome-actions button,
    .ai-mode-tabs button,
    .ai-message-body,
    .lab-ai-actions button,
    .lab-ai-entry,
    .lab-ai-form textarea
  ) {
  border-radius: var(--brand-control-radius);
}
.ai-lab-page .ai-composer-actions button {
  border-radius: var(--brand-control-radius);
}
.ai-lab-page .ai-chat {
  grid-template-rows: 64px minmax(0, 1fr) auto;
}
.ai-lab-page .ai-chat-head button {
  margin: 6px 8px;
  padding-inline: 12px;
  border: 1px solid var(--brand-line);
  border-radius: var(--brand-control-radius);
}
.code-lab-page .lab-run-controls {
  gap: 8px;
  padding: 6px 8px;
}
.code-lab-page :is(.lab-reset-button, .lab-ai-button) {
  border: 1px solid var(--brand-line);
}
.code-lab-page
  .lab-explorer
  > header
  :is([data-new-file], [data-download-project]) {
  border-radius: var(--brand-control-radius);
}

@media (max-width: 1180px) {
  .code-lab-page .lab-editor-panel {
    grid-template-rows: 112px 40px minmax(0, 1fr) minmax(140px, 24vh);
  }
  .code-lab-page .lab-editor-toolbar {
    display: grid;
    min-width: 0;
    min-height: 112px;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: 48px 64px;
  }
  .code-lab-page .lab-language-switch {
    min-width: 0;
  }
  .code-lab-page .lab-language-switch button {
    min-width: 0;
    flex: 1;
  }
  .code-lab-page .lab-run-controls {
    min-width: 0;
    border-top: 1px solid var(--brand-line);
    justify-content: flex-end;
  }
}

@media (max-width: 1120px) {
  .showcase-page :is(.trajectory-map, .academic-lead-card, .research-radar) {
    width: calc(100% - 2 * var(--brand-gutter));
    margin-inline: var(--brand-gutter);
  }
  .showcase-page
    :is(.program-page-workbench, .research-workbench, .department-grid) {
    margin-inline: var(--brand-gutter);
  }
}
@media (max-width: 800px) {
  .showcase-page .project-rail {
    padding: 10px;
  }
  .showcase-page .project-rail button {
    flex-basis: 180px;
  }
}
@media (max-width: 620px) {
  :root {
    --brand-card-radius: 16px;
  }
  .experience-heading h2 {
    font-size: clamp(1.9rem, 8.5vw, 3rem);
  }
  .experience-dialog {
    padding: 24px 20px;
  }
  .program-insights {
    padding: 22px 20px;
  }
  .showcase-page .program-page-directory ol {
    max-height: 340px;
  }
  .showcase-page .program-page-levels {
    padding: 16px 12px;
    gap: 6px;
  }
  .showcase-page .program-page-levels button {
    font-size: 12px;
    letter-spacing: 0;
  }
  .showcase-page .program-page-display h3 {
    hyphens: none;
  }
  .hsdt-page .contact-section {
    margin-block: 40px;
  }
  .showcase-page .showcase-crosslink {
    margin-bottom: 40px;
  }
  .showcase-page .showcase-crosslink h2 {
    font-size: clamp(2rem, 9vw, 3.1rem);
  }
  .hsdt-page :is(.contact-copy, .contact-form) {
    padding: 32px 20px;
  }
  .hsdt-page .contact-form::before {
    display: none;
  }
  :is(.code-lab-page, .ai-lab-page) :is(.lab-workspace, .ai-workspace) {
    margin: 10px 12px;
    border-radius: 20px;
  }
  .code-lab-page .lab-ai-panel {
    border-radius: 20px 0 0 20px;
  }
}
@media (max-width: 420px) {
  .code-lab-page .lab-run-controls .lab-run-button {
    grid-template-columns: 24px minmax(0, 1fr);
    padding-inline: 8px;
  }
  .code-lab-page .lab-run-button .lab-run-icon {
    width: 24px;
    height: 24px;
  }
  .code-lab-page .lab-run-copy strong {
    font-size: 12px;
  }
  .code-lab-page .lab-run-copy small {
    font-size: 10px;
  }
  .code-lab-page .lab-run-signal {
    display: none;
  }
  .code-lab-page .lab-practice-button {
    padding-inline: 8px;
    font-size: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .experience-section .home-route:hover {
    transform: none;
  }
}

/* Overlay spacing belongs to the component, independent of page resets. */
.code-lab-page
  .monaco-editor
  :is(.monaco-hover, .parameter-hints-widget, .suggest-widget) {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(23, 36, 76, 0.14);
}
.code-lab-page .monaco-editor .monaco-hover-content {
  padding: 12px 16px;
  line-height: 1.6;
}
.code-lab-page .monaco-editor .monaco-hover-content p {
  margin: 8px 0;
}
.experience-dialog[open] {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 32px;
  gap: 0;
}
.experience-dialog > header {
  flex: 0 0 auto;
  gap: 24px;
  margin: 0 0 24px;
  align-items: flex-start;
}
.experience-dialog > header > div {
  min-width: 0;
}
.experience-dialog .dialog-close {
  width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
}
.experience-dialog .dialog-body {
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  padding: 6px;
  margin: -6px;
  scroll-padding: 16px;
}
.experience-dialog :is(p, h3, pre) {
  overflow-wrap: anywhere;
}
.practice-dialog {
  margin: min(6vh, 56px) auto auto;
  max-height: calc(100dvh - min(6vh, 56px) - 24px);
}
.practice-dialog .practice-detail {
  display: grid;
  align-content: start;
  gap: 20px;
  min-width: 0;
}
.practice-dialog .practice-detail > :is(p, h3, pre, .experience-eyebrow) {
  margin: 0;
}
.practice-dialog .practice-output {
  display: grid;
  gap: 10px;
}
.practice-dialog .practice-output > * {
  margin: 0;
}
.practice-dialog .practice-output > p {
  font-size: 13px;
  font-weight: 600;
}
.practice-dialog .practice-hint {
  margin: 0;
  padding: 18px 20px;
  line-height: 1.65;
}
.practice-dialog .practice-reset {
  justify-self: start;
  margin-top: 0;
}
.practice-dialog .experience-actions {
  gap: 12px;
}
.practice-dialog .practice-list {
  gap: 10px;
}
.practice-dialog .practice-list button {
  padding: 16px;
}
.practice-dialog .practice-progress {
  margin: 28px 0 16px;
}
.practice-dialog .experience-note {
  margin: 20px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--brand-line);
}
.experience-dialog .experience-status {
  margin: 16px 0;
}
.site-search .search-field {
  display: block;
  margin: 0 0 16px;
}
.site-search .search-results {
  min-height: 120px;
  padding: 6px;
  margin: 0 -6px;
  max-height: 40vh;
}
.code-lab-page .lab-shortcuts {
  width: min(400px, calc(100vw - 32px));
  right: 16px;
}
.code-lab-page .lab-shortcuts header {
  min-height: 68px;
  padding: 12px 20px;
  gap: 16px;
}
.code-lab-page .lab-shortcuts dl {
  padding: 8px 20px 20px;
}
.code-lab-page .lab-shortcuts dl > div {
  gap: 20px;
  padding: 14px 0;
  align-items: center;
}
.code-lab-page .lab-shortcuts dt {
  min-width: 0;
  line-height: 1.5;
}
.code-lab-page .lab-shortcuts dd {
  flex: 0 0 auto;
}
.code-lab-page .lab-ai-panel {
  top: calc(var(--app-header-height) + 12px);
  right: 12px;
  bottom: 46px;
  width: min(450px, calc(100vw - 24px));
  border: 1px solid var(--brand-line);
  border-radius: 24px;
  overflow: auto;
  grid-template-rows: auto auto auto minmax(100px, 1fr) auto auto;
}
.code-lab-page .lab-ai-head {
  position: sticky;
  top: 0;
  z-index: 4;
  min-height: 72px;
  padding: 16px 20px;
  gap: 16px;
}
.code-lab-page .lab-ai-context {
  padding: 14px 20px;
  gap: 12px;
}
.code-lab-page .lab-ai-actions {
  padding: 16px 20px;
  gap: 10px;
}
.code-lab-page .lab-ai-actions button {
  padding: 14px;
  gap: 8px;
}
.code-lab-page .lab-ai-feed {
  padding: 20px;
}
.code-lab-page .lab-ai-form {
  margin: 12px 20px 20px;
}
.code-lab-page .lab-ai-proposal {
  margin: 12px 20px;
}
.code-lab-page .lab-ai-proposal > header {
  padding: 12px 16px;
  gap: 12px;
}
.code-lab-page .lab-ai-proposal footer {
  padding: 12px;
  gap: 10px;
  flex-wrap: wrap;
}
.code-lab-page .lab-ai-proposal footer button {
  min-height: 44px;
}
.practice-toast {
  padding: 22px 60px 22px 24px;
  bottom: 50px;
  line-height: 1.6;
}
.practice-toast button {
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
}
@media (max-width: 620px) {
  .experience-dialog[open] {
    padding: 24px;
    width: calc(100% - 24px);
    max-height: calc(100dvh - 24px);
    margin: 12px auto auto;
  }
  .experience-dialog > header {
    gap: 16px;
    margin-bottom: 24px;
  }
  .practice-dialog .practice-layout {
    gap: 28px;
  }
  .practice-dialog .practice-list {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .practice-dialog .practice-list button {
    padding: 12px 16px;
    font-size: 14px;
  }
  .practice-dialog .practice-detail {
    gap: 18px;
  }
  .practice-dialog .practice-hint {
    padding: 16px;
  }
  .practice-dialog .experience-actions {
    align-items: stretch;
  }
  .practice-dialog .experience-actions > button {
    justify-content: center;
    flex: 1 1 100%;
  }
  .code-lab-page .lab-ai-panel {
    grid-template-rows: auto auto auto minmax(0, 1fr) auto auto;
  }
  .code-lab-page
    .lab-ai-panel
    :is(.lab-ai-head, .lab-ai-context, .lab-ai-actions, .lab-ai-feed) {
    padding: 16px;
  }
  .code-lab-page .lab-ai-form {
    margin: 12px 16px 16px;
  }
  .code-lab-page .lab-ai-actions button {
    grid-template-columns: minmax(0, 1fr);
    padding: 10px 12px;
    gap: 6px;
  }
  .code-lab-page .lab-ai-actions button > span {
    display: none;
  }
  .code-lab-page .lab-ai-actions button small {
    font-size: 12px;
    line-height: 1.45;
  }
  .practice-toast {
    right: 12px;
    max-width: calc(100vw - 24px);
    padding: 20px 56px 20px 20px;
  }
}
@media (max-width: 620px) and (max-height: 700px) {
  .code-lab-page .lab-ai-panel .lab-ai-head {
    min-height: 60px;
    padding: 10px 16px;
  }
  .code-lab-page .lab-ai-panel .lab-ai-context {
    min-height: 40px;
    padding: 8px 16px;
  }
  .code-lab-page .lab-ai-panel .lab-ai-actions {
    padding: 12px 16px;
    gap: 8px;
  }
  .code-lab-page .lab-ai-actions button {
    min-height: 44px;
    padding: 10px 12px;
  }
  .code-lab-page .lab-ai-actions button small {
    display: none;
  }
  .code-lab-page .lab-ai-form {
    grid-template-rows: minmax(56px, auto) 44px;
    margin: 8px 16px 12px;
  }
}

/* Footer watermark uses the same vector geometry as the main identity. */
.site-footer .footer-word { opacity:.055; }
.site-footer .footer-word img {
  display:block;
  width:auto;
  max-width:100%;
  height:clamp(130px,18vw,240px);
  object-fit:contain;
  object-position:left bottom;
}
.site-footer .footer-contact-link { border-radius:12px; overflow:hidden; }
.site-footer .footer-social-links > a { border-radius:8px; }
.site-footer .footer-brand > strong { letter-spacing:-.045em; }