/* Shared presentation cards and local slide-reader pages. */
.slides-page {
  margin: 0;
  background: var(--paper, #f4f1e9);
  color: var(--ink, #1a252b);
  font-family: var(--sans, sans-serif);
  line-height: 1.8;
}
.slides-page *, .slides-section * { box-sizing: border-box; }
.slides-page [hidden], .slides-section [hidden] { display: none !important; }
.slides-page a, .slides-section a { color: inherit; }
.slides-page button, .slides-page input, .slides-page select { font: inherit; }
.slides-page button { cursor: pointer; }
.slides-page button:disabled { cursor: default; opacity: .4; }
.slides-page :focus-visible, .slides-section :focus-visible {
  outline: 3px solid var(--orange, #d58a50);
  outline-offset: 4px;
}
.slides-header {
  border-bottom: 1px solid var(--line, #d9d9d0);
  background: var(--paper, #f4f1e9);
}
.slides-header-inner {
  width: min(1200px, calc(100% - 80px));
  margin: auto;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.slides-brand { display: block; flex: 0 1 174px; min-width: 100px; }
.slides-brand img { display: block; max-width: 100%; height: auto; }
.slides-header-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.slides-header-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.slides-header-links a:hover { border-bottom-color: currentColor; }
.slides-archive, .slide-viewer {
  width: min(1200px, calc(100% - 80px));
  margin: auto;
  padding: 44px 0 84px;
}
.slides-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 0 0 30px;
  font-size: 14px;
  color: var(--muted, #687078);
}
.slides-breadcrumb a { text-decoration: underline; text-underline-offset: 4px; }
.slides-page-heading { max-width: 900px; margin-bottom: 36px; }
.slides-page .slides-page-heading h1 {
  margin: 12px 0 18px;
  color: var(--navy, #172936);
  font: 600 clamp(26px, 3.8vw, 44px)/1.65 var(--serif, serif);
  letter-spacing: .025em;
  overflow-wrap: anywhere;
}
.slides-page-heading > p:not(.eyebrow) { font-size: 16px; line-height: 1.95; }
.slides-page .slides-page-heading .slide-deck-subtitle {
  margin: -4px 0 22px;
  font: 600 clamp(17px, 2.2vw, 23px)/1.85 var(--serif, serif);
  color: #4f5d66;
  letter-spacing: .02em;
  overflow-wrap: anywhere;
}
.slides-page-heading .slide-deck-meta { color: var(--muted, #687078); }
.slide-deck-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: baseline; }
.slides-section {
  margin-top: 56px;
  padding-top: 44px;
  border-top: 1px solid var(--line, #d9d9d0);
}
.slides-section-heading {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: end;
  gap: 16px 32px;
  margin-bottom: 28px;
}
.slides-section h3, .slides-section-heading h3 {
  font: 600 28px/1.7 var(--serif, serif);
  letter-spacing: .035em;
  margin: 0;
}
.slides-section-heading > p, .slides-section > p {
  margin: 12px 0 24px;
  font-size: 16px;
  color: var(--muted, #687078);
}
.slides-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px 26px;
}
.slide-card {
  /* The paper cards retain readable colors inside the navy EDUCATION chapter. */
  --accent: #a65529;
  --muted: #52616a;
  --line: #cbd0ca;
  min-width: 0;
  border: 1px solid var(--line, #d9d9d0);
  background: #f4f1e9;
  color: #1a252b;
}
.slide-card-link {
  height: 100%;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: border-color .15s;
}
.slide-cover {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  background: #fff;
  border-bottom: 1px solid var(--line, #d9d9d0);
}
.slide-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.slide-card-copy {
  display: flex;
  flex-direction: column;
  align-items: start;
  flex: 1;
  padding: 18px 20px 16px;
  min-width: 0;
  background: #f4f1e9;
  color: #1a252b;
}
.slide-card-meta {
  margin: 0;
  color: var(--accent, #a65529);
  font: 500 13px/1.7 var(--latin, sans-serif);
  letter-spacing: .025em;
}
.slide-card h3, .slide-card h4, .slides-section .slide-card h3, .slides-section .slide-card h4 {
  margin: 12px 0 10px;
  font: 600 20px/1.7 var(--serif, serif);
  letter-spacing: .02em;
  overflow-wrap: anywhere;
}
.slide-card-event {
  color: var(--muted, #687078);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.8;
  margin: 10px 0 12px;
  overflow-wrap: anywhere;
}
.slide-card-action {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  margin-top: auto;
  padding: 7px 0;
  border-bottom: 1px solid transparent;
  color: var(--accent, #a65529);
  font-size: 14px;
  line-height: 1.8;
  text-decoration: none;
  white-space: nowrap;
}
.slide-card-action > span { color: inherit; line-height: inherit; text-decoration: none; }
.slide-card-link:hover .slide-card-action,
.slide-card-link:focus-visible .slide-card-action { border-bottom-color: currentColor; text-decoration: none; }
.slide-card-link:hover .slide-cover { background: #f0f1ec; }
.dark .slides-section .slide-card { border-color: #f4f1e950; }
.slides-section .slides-card-grid + .button-link { margin-top: 30px; }
.slides-section-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 28px;
  margin-top: 28px;
}
.slides-section-bottom p { margin: 0; color: var(--muted, #687078); font-size: 14px; line-height: 1.9; }
.slides-section-bottom .button-link { width: fit-content; max-width: 100%; margin: 0; }
.slides-filter {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(150px, 220px) auto;
  gap: 10px 18px;
  align-items: end;
  padding: 24px;
  border: 1px solid var(--line, #d9d9d0);
  margin-bottom: 24px;
  background: #fff5;
}
.slides-filter label { font-size: 14px; }
.slides-filter label[for="slides-search"] { grid-column: 1; grid-row: 1; }
.slides-filter label[for="slides-year"] { grid-column: 2; grid-row: 1; }
.slides-filter #slides-search { grid-column: 1; grid-row: 2; }
.slides-filter #slides-year { grid-column: 2; grid-row: 2; }
.slides-filter #slides-reset { grid-column: 3; grid-row: 2; }
.slides-filter input, .slides-filter select {
  min-height: 48px;
  width: 100%;
  min-width: 0;
  padding: 8px 12px;
  border: 1px solid #9ca4a5;
  border-radius: 2px;
  color: var(--ink, #1a252b);
  background: #fff;
}
.slides-filter button, .slide-controls button, .slide-error button,
.slide-page-form button, .slide-tools button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 8px 18px;
  border: 1px solid #8d9b9f;
  border-radius: 2px;
  background: var(--paper, #f4f1e9);
  color: var(--navy, #172936);
  font-size: 15px;
  line-height: 1.5;
  white-space: normal;
}
.slides-count { margin: 0 0 24px; font-size: 15px; color: var(--muted, #687078); }
.slides-empty { padding: 52px 24px; text-align: center; border-block: 1px solid var(--line, #d9d9d0); }
.slides-page .slides-empty h2 { margin: 0 0 16px; font: 600 24px/1.7 var(--serif, serif); }
.slide-stage {
  position: relative;
  min-width: 0;
  border: 1px solid #445660;
  padding: 16px;
  background: var(--navy, #172936);
  color: var(--paper, #f4f1e9);
}
.slide-scroll {
  width: 100%;
  height: clamp(240px, 64vh, 760px);
  overflow: hidden;
  background: #fafaf8;
  touch-action: pan-y;
}
.slide-image-button {
  border: 0;
  border-radius: 0;
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fafaf8;
  color: var(--ink, #1a252b);
  cursor: pointer;
}
.slide-image-button img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}
.slide-stage.is-loading .slide-image-button { opacity: .45; }
.slide-stage.is-error .slide-image-button { visibility: hidden; }
.slide-status {
  min-height: 26px;
  margin: 12px 0 4px;
  color: #e0e6e6;
  font-size: 14px;
  line-height: 1.8;
}
.slide-error {
  margin: 12px 0;
  padding: 20px;
  color: var(--ink, #1a252b);
  background: var(--paper, #f4f1e9);
  border-left: 3px solid var(--orange, #d58a50);
}
.slide-error p { margin: 0 0 14px; font-size: 15px; line-height: 1.8; }
.slide-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 18px;
}
.slide-page-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0;
  font-size: 15px;
}
.slide-page-form input {
  min-height: 46px;
  width: 76px;
  max-width: 100%;
  padding: 8px 7px;
  border: 1px solid #8d9b9f;
  border-radius: 2px;
  color: var(--navy, #172936);
  background: #fff;
  text-align: center;
}
.slide-page-form input[aria-invalid="true"] { border: 2px solid #b44f35; }
.slide-page-error { min-height: 24px; margin: 10px 0 0; font-size: 14px; line-height: 1.8; color: #f8cda9; }
.slide-tools { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 14px; }
.slide-tools button[aria-pressed="true"] { background: #d58a50; border-color: #d58a50; color: #172936; }
.slide-viewer-help { margin: 22px 0; font-size: 14px; line-height: 1.9; color: var(--muted, #687078); }
.slide-stage.is-zoomed .slide-scroll { overflow: auto; touch-action: auto; }
.slide-stage.is-zoomed .slide-image-button {
  display: block;
  width: 180%;
  min-width: 180%;
  height: auto;
  min-height: 100%;
  cursor: default;
}
.slide-stage.is-zoomed .slide-image-button img {
  width: 100%;
  max-width: none;
  max-height: none;
  height: auto;
}
.slide-stage:fullscreen {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  max-width: none;
  overflow: auto;
  padding: 20px;
}
.slide-stage:fullscreen .slide-scroll { flex: 1 1 auto; min-height: 150px; height: auto; }
.slide-stage:fullscreen .slide-status, .slide-stage:fullscreen .slide-controls,
.slide-stage:fullscreen .slide-tools { flex: 0 0 auto; }
@media (max-width: 980px) {
  .slides-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .slides-filter { grid-template-columns: minmax(140px, 1fr) 170px; }
  .slides-filter #slides-reset { grid-column: 1 / -1; grid-row: 3; justify-self: start; }
}
@media (max-width: 640px) {
  .slides-header-inner, .slides-archive, .slide-viewer { width: calc(100% - 32px); }
  .slides-header-inner { padding: 12px 0; align-items: center; }
  .slides-brand { flex-basis: 128px; }
  .slides-header-links { gap: 0 14px; justify-content: end; }
  .slides-header-links a { font-size: 13px; }
  .slides-archive, .slide-viewer { padding: 26px 0 56px; }
  .slides-breadcrumb { margin-bottom: 22px; font-size: 13px; }
  .slides-page-heading { margin-bottom: 26px; }
  .slides-page-heading > p:not(.eyebrow) { font-size: 15px; }
  .slides-card-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .slide-card-copy { padding: 18px 20px 16px; }
  .slides-section { margin-top: 38px; padding-top: 32px; }
  .slides-section h3 { font-size: 25px; }
  .slides-filter { grid-template-columns: minmax(0, 1fr); padding: 18px; gap: 8px; }
  .slides-filter label[for="slides-search"] { grid-column: 1; grid-row: 1; }
  .slides-filter #slides-search { grid-column: 1; grid-row: 2; }
  .slides-filter label[for="slides-year"] { grid-column: 1; grid-row: 3; margin-top: 10px; }
  .slides-filter #slides-year { grid-column: 1; grid-row: 4; }
  .slides-filter #slides-reset { grid-column: 1; grid-row: 5; margin-top: 8px; }
  .slide-stage { padding: 10px; }
  .slide-scroll { height: clamp(190px, 44vh, 420px); }
  .slide-controls { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
  #slide-prev { grid-column: 1; grid-row: 1; }
  #slide-next { grid-column: 2; grid-row: 1; }
  .slide-page-form { grid-column: 1 / -1; grid-row: 2; justify-content: start; gap: 8px; }
  .slide-page-form input { width: 66px; }
  .slide-page-form button { padding-inline: 14px; }
  .slide-tools { gap: 8px; }
  .slide-tools button { flex: 1 1 110px; padding-inline: 12px; }
  .slide-stage:fullscreen { padding: 10px; }
}
@media (prefers-reduced-motion: reduce) { .slide-card-link { transition: none; } }