:root {
  --ref-navy: #0a1b34;
  --ref-navy-soft: #102746;
  --ref-blue: #245bda;
  --ref-blue-bright: #348df7;
  --ref-mint: #48b986;
  --ref-paper: #f4f8ff;
  --ref-ink: #253044;
  --ref-muted: #687990;
  --ref-line: #dce7f5;
}

body.cases-page {
  background: var(--ref-paper);
  color: var(--ref-ink);
}

/* Keep portrait logos inside the fixed-size grid cell as well as wide marks. */
.cases-page .case-logo.partner-logo {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
}

.cases-page .case-logo.partner-logo img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  min-width: 0;
  min-height: 0;
  object-fit: contain;
  padding: .42rem;
  box-sizing: border-box;
}

body.cases-page .case-hero {
  padding: clamp(7.4rem, 10vw, 9.4rem) 0 clamp(3.2rem, 5vw, 4.8rem);
  background:
    radial-gradient(circle at 78% 18%, rgba(52, 141, 247, .2), transparent 28%),
    radial-gradient(circle at 22% 10%, rgba(72, 185, 134, .12), transparent 24%),
    linear-gradient(135deg, #f9fbff 0%, #edf4ff 58%, #eaf8f5 100%) !important;
  border-bottom: 1px solid var(--ref-line);
}

.reference-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(420px, .97fr);
  gap: clamp(2.6rem, 5vw, 5.8rem);
  align-items: center;
}

.reference-hero-copy {
  max-width: 700px;
}

body.cases-page .case-hero h1 {
  margin: 1.05rem 0 1.15rem;
  max-width: 760px;
  color: var(--ref-ink);
  font-size: clamp(3rem, 6vw, 5.9rem);
  line-height: 1.02;
  letter-spacing: -.055em;
  word-break: keep-all;
}

body.cases-page .case-hero h1 span {
  display: block;
  margin-top: .18em;
  color: var(--ref-blue);
  font-size: .73em;
  line-height: 1.08;
}

body.cases-page .case-hero p {
  max-width: 680px;
  color: var(--ref-muted);
  font-size: clamp(1rem, 1.35vw, 1.16rem);
  line-height: 1.85;
  word-break: keep-all;
}

.reference-hero-note {
  margin-top: 1rem !important;
  color: #52657e !important;
  font-size: .92rem !important;
}

.reference-hero-note a {
  display: inline-flex;
  margin-left: .45rem;
  color: var(--ref-blue);
  font-weight: 900;
  white-space: nowrap;
}

.reference-hero-visual {
  position: relative;
  margin: 0;
  min-width: 0;
}

.reference-hero-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(255, 255, 255, .84);
  border-radius: 30px;
  background: #dfe9f8;
  box-shadow: 0 36px 90px rgba(42, 74, 126, .2);
}

.reference-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 48%, rgba(7, 24, 50, .76) 100%),
    linear-gradient(110deg, rgba(36, 91, 218, .08), transparent 48%);
  pointer-events: none;
}

.reference-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
  transition: scale .8s cubic-bezier(.16, 1, .3, 1);
}

.reference-hero-visual:hover .reference-hero-media img {
  scale: 1.025;
}

.reference-hero-caption {
  position: absolute;
  z-index: 2;
  left: clamp(1.2rem, 2.6vw, 2rem);
  right: clamp(1.2rem, 2.6vw, 2rem);
  bottom: clamp(1.2rem, 2.6vw, 2rem);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  color: #fff;
}

.reference-hero-caption span {
  display: block;
  color: rgba(255, 255, 255, .7);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.reference-hero-caption b {
  display: block;
  margin-top: .4rem;
  font-size: clamp(1.18rem, 2vw, 1.62rem);
  line-height: 1.3;
  letter-spacing: -.03em;
}

.reference-hero-caption em {
  font-style: normal;
  white-space: nowrap;
  color: #d9fff0;
  font-weight: 900;
}

.reference-float-chip {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  min-height: 38px;
  padding: .58rem .8rem;
  border: 1px solid rgba(255, 255, 255, .88);
  border-radius: 999px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 16px 34px rgba(26, 55, 102, .16);
  color: #34445d;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .03em;
  backdrop-filter: blur(14px);
}

.reference-float-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ref-mint);
  box-shadow: 0 0 0 5px rgba(72, 185, 134, .12);
}

.reference-float-chip--one { top: 8%; left: -4%; }
.reference-float-chip--two { top: 22%; right: -5%; }

body.cases-page .case-stats {
  max-width: none;
  margin-top: 2rem;
  gap: .72rem;
}

body.cases-page .case-stat {
  padding: 1rem 1.05rem;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(42, 58, 82, .06);
}

body.cases-page .case-stat strong {
  font-size: clamp(1.34rem, 2.2vw, 1.72rem);
}

body.cases-page .case-stat span {
  display: block;
  margin-top: .18rem;
  font-size: .84rem;
}

body.cases-page .education-view-nav {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--ref-line);
  background: #fff !important;
}

.education-view-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  padding: .55rem;
  border: 1px solid #d8e4f3;
  border-radius: 24px;
  background: #f2f6fc;
  box-shadow: 0 16px 38px rgba(38, 64, 104, .07);
}

.education-view-tabs button {
  position: relative;
  font: inherit;
  min-height: 88px;
  padding: 1rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 18px;
  background: transparent;
  color: #63748a;
  text-align: left;
  cursor: pointer;
  transition: transform .2s ease, color .2s ease, background .2s ease, box-shadow .2s ease;
}

.education-view-tabs button:hover {
  color: var(--ref-blue);
  background: rgba(255, 255, 255, .78);
}

.education-view-tabs button[aria-selected="true"] {
  color: #fff;
  background: linear-gradient(135deg, #245bda, #225fc2);
  box-shadow: 0 14px 30px rgba(36, 91, 218, .22);
}

.education-view-tabs button:focus-visible {
  outline: 3px solid #245bda;
  outline-offset: 3px;
}

.education-view-tabs span,
.education-view-tabs small { display: block; }

.education-view-tabs span {
  font-size: 1.25rem;
  font-weight: 950;
  letter-spacing: -.025em;
}

.education-view-tabs small {
  margin-top: .34rem;
  color: #51657e;
  font-size: .84rem;
  font-weight: 750;
}

.education-view-tabs button[aria-selected="true"] small { color: #fff; }
.education-view-tabs small b { color: inherit; }

[data-education-view-panel] {
  animation: reference-panel-in .42s cubic-bezier(.16, 1, .3, 1) both;
  scroll-margin-top: 88px;
}

[data-education-view-panel][hidden] { display: none !important; }
#all-references { scroll-margin-top: 88px; }

.reference-logo-rail {
  overflow: hidden;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--ref-line);
  background: rgba(255, 255, 255, .94);
}

.reference-logo-rail__label {
  color: #7a899d;
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.reference-logo-window {
  overflow: hidden;
  margin-top: .95rem;
  padding: .2rem 0 .65rem;
}

.reference-logo-track {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.reference-logo-group {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.reference-logo-group[aria-hidden="true"] { display: none; }

.reference-logo-group img {
  width: auto;
  max-width: 100%;
  height: 30px;
  justify-self: center;
  object-fit: contain;
  filter: grayscale(1);
  opacity: .62;
  transition: filter .2s ease, opacity .2s ease;
}

.reference-logo-group img:hover {
  filter: grayscale(0);
  opacity: 1;
}

.reference-provenance {
  width: min(1180px, calc(100% - 40px));
  margin: .5rem auto 0;
  color: #8391a4 !important;
  font-size: .78rem !important;
  line-height: 1.65 !important;
}

body.cases-page main .reference-featured {
  position: relative;
  overflow: hidden;
  padding: clamp(5rem, 8vw, 8rem) 0;
  color: #f7fbff;
  background:
    radial-gradient(circle at 86% 4%, rgba(52, 141, 247, .28), transparent 26%),
    radial-gradient(circle at 8% 88%, rgba(72, 185, 134, .13), transparent 24%),
    linear-gradient(145deg, #07182f 0%, #0d2543 56%, #0a1d36 100%) !important;
}

.reference-featured::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(120deg, #000, transparent 80%);
  mask-image: linear-gradient(120deg, #000, transparent 80%);
  pointer-events: none;
}

.reference-section-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .62fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 2rem;
}

.reference-eyebrow {
  color: #74ddbd;
  font-size: .78rem;
  font-weight: 950;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.reference-section-head h2,
.reference-method-head h2,
.reference-browser-head h2,
.reference-topics-head h2 {
  margin: .65rem 0 0;
  font-size: clamp(2.2rem, 4.4vw, 4rem);
  line-height: 1.08;
  letter-spacing: -.045em;
  word-break: keep-all;
}

.reference-section-head p {
  margin: 0;
  color: rgba(229, 238, 249, .7) !important;
  line-height: 1.85;
}

body.cases-page .reference-section-head h2,
body.cases-page .reference-story-copy h3 { color: #fff !important; }

.reference-story-tabs {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .72rem;
  margin-bottom: .8rem;
}

.reference-story-tab {
  position: relative;
  overflow: hidden;
  min-height: 92px;
  padding: 1rem;
  border: 1px solid rgba(180, 203, 230, .2);
  border-radius: 16px;
  background: rgba(255, 255, 255, .055);
  color: rgba(234, 242, 251, .68);
  text-align: left;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
}

.reference-story-tab::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ref-blue-bright), var(--ref-mint));
  transform: scaleX(0);
  transform-origin: left;
}

.reference-story-tab:hover,
.reference-story-tab[aria-selected="true"] {
  transform: translateY(-2px);
  border-color: rgba(104, 181, 255, .62);
  background: rgba(52, 141, 247, .16);
  color: #fff;
}

.reference-story-tab[aria-selected="true"]::after {
  transform: scaleX(1);
  transition: transform .28s cubic-bezier(.16, 1, .3, 1);
}

.reference-story-tab b,
.reference-story-tab span {
  display: block;
}

.reference-story-tab b { font-size: 1rem; }
.reference-story-tab span { margin-top: .3rem; font-size: .78rem; }

.reference-story-stage {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid rgba(188, 210, 235, .2);
  border-radius: 30px;
  background: rgba(255, 255, 255, .055);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .2);
}

.reference-story-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .92fr);
  min-height: 480px;
  animation: reference-panel-in .48s cubic-bezier(.16, 1, .3, 1) both;
}

.reference-story-panel[hidden] { display: none !important; }

@keyframes reference-panel-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

.reference-story-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.6rem, 4vw, 3.2rem);
}

.reference-story-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  min-width: 126px;
  height: 52px;
  padding: .6rem 1rem;
  border-radius: 14px;
  background: #fff;
}

.reference-story-brand img {
  width: auto;
  max-width: 108px;
  max-height: 30px;
  object-fit: contain;
}

.reference-story-brand span {
  color: #20324d;
  font-weight: 950;
}

.reference-story-copy h3 {
  margin: 1.6rem 0 .85rem;
  max-width: 590px;
  color: #fff;
  font-size: clamp(1.8rem, 3.3vw, 3rem);
  line-height: 1.16;
  letter-spacing: -.04em;
  word-break: keep-all;
}

.reference-story-copy p {
  max-width: 600px;
  margin: 0;
  color: rgba(230, 239, 249, .72) !important;
  line-height: 1.82;
}

.reference-story-result {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(190, 211, 235, .18);
}

.reference-story-result strong {
  color: #fff;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -.04em;
}

.reference-story-result span {
  color: #91a4bb;
  font-size: .84rem;
  font-weight: 850;
}

.reference-story-result a {
  color: #c7fbe9;
  font-weight: 900;
}

.reference-story-media {
  position: relative;
  min-height: 420px;
  overflow: hidden;
}

.reference-story-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 28, 52, .46), transparent 38%);
  pointer-events: none;
}

.reference-story-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.reference-media-note {
  position: absolute;
  z-index: 2;
  right: .85rem;
  bottom: .8rem;
  padding: .42rem .62rem;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  background: rgba(5, 19, 38, .7);
  color: rgba(255, 255, 255, .82);
  font-size: .7rem;
  font-weight: 850;
  backdrop-filter: blur(8px);
}

.reference-method {
  padding: clamp(5rem, 8vw, 7.6rem) 0;
  background: #fff !important;
}

.reference-method-head,
.reference-browser-head,
.reference-topics-head {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .62fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: 2.3rem;
}

.reference-method-head h2,
.reference-browser-head h2,
.reference-topics-head h2 { color: var(--ref-ink); }

.reference-method-head p,
.reference-browser-head p,
.reference-topics-head p {
  margin: 0;
  color: var(--ref-muted);
  line-height: 1.85;
}

.reference-method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.reference-method-card {
  position: relative;
  overflow: hidden;
  min-height: 288px;
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--ref-line);
  border-radius: 24px;
  background: linear-gradient(150deg, #fff, #f5f9ff);
  box-shadow: 0 16px 38px rgba(38, 64, 104, .07);
}

.reference-method-card::after {
  content: attr(data-step);
  position: absolute;
  right: 1rem;
  top: .15rem;
  color: rgba(36, 91, 218, .06);
  font-size: 6rem;
  font-weight: 950;
  line-height: 1;
}

.reference-method-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: #eaf2ff;
}

.reference-method-icon img { width: 36px; height: 36px; }

.reference-method-card h3 {
  margin: 1.35rem 0 .7rem;
  color: var(--ref-ink);
  font-size: 1.35rem;
  letter-spacing: -.025em;
}

.reference-method-card p {
  margin: 0;
  color: var(--ref-muted);
  line-height: 1.75;
}

body.cases-page .cases-section {
  padding: clamp(5rem, 8vw, 7.5rem) 0;
  background: var(--ref-paper) !important;
}

.reference-browser-head { margin-bottom: 1.7rem; }

.reference-category-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
  margin: 0 0 1.35rem;
}

.reference-category-summary article {
  position: relative;
  min-height: 126px;
  padding: 1.05rem 1.15rem;
  border: 1px solid var(--ref-line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .75);
}

.reference-category-summary b {
  display: block;
  padding-right: 3.4rem;
  color: var(--ref-ink);
  font-size: .96rem;
}

.reference-category-summary strong {
  position: absolute;
  top: .9rem;
  right: 1rem;
  color: var(--ref-blue);
  font-size: 1.35rem;
}

.reference-category-summary p {
  margin: .55rem 0 0;
  color: var(--ref-muted) !important;
  font-size: .82rem !important;
  line-height: 1.55 !important;
}

.reference-filter {
  position: sticky;
  top: 72px;
  z-index: 20;
  display: flex;
  gap: .58rem;
  overflow-x: auto;
  margin: 0 0 1.35rem;
  padding: .68rem;
  border: 1px solid rgba(194, 209, 228, .78);
  border-radius: 18px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 16px 38px rgba(38, 64, 104, .09);
  backdrop-filter: blur(18px);
  scrollbar-width: none;
}

.reference-filter::-webkit-scrollbar { display: none; }

.reference-filter button {
  flex: 0 0 auto;
  min-height: 46px;
  padding: .75rem .95rem;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: #65758b;
  font: inherit;
  font-size: .9rem;
  font-weight: 900;
  cursor: pointer;
}

.reference-filter button span {
  margin-left: .28rem;
  color: #98a7ba;
  font-size: .75rem;
}

.reference-filter button:hover {
  color: var(--ref-blue);
  background: #f1f6ff;
}

.reference-filter button[aria-selected="true"] {
  color: #fff;
  background: linear-gradient(135deg, var(--ref-blue), var(--ref-blue-bright));
  box-shadow: 0 12px 26px rgba(36, 91, 218, .2);
}

.reference-filter button[aria-selected="true"] span { color: rgba(255, 255, 255, .7); }

.reference-panel { animation: reference-panel-in .36s cubic-bezier(.16, 1, .3, 1) both; }
.reference-panel[hidden] { display: none !important; }

.reference-panel-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1.15rem;
  color: var(--ref-muted);
}

.reference-panel-meta b { color: var(--ref-ink); }

body.cases-page .case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

body.cases-page .case-card {
  min-height: 206px;
  padding: 1.2rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 12px 30px rgba(42, 58, 82, .065);
}

body.cases-page .case-card h3 { font-size: 1.06rem; }
body.cases-page .case-card p { font-size: .93rem; line-height: 1.68; }
body.cases-page .case-card[hidden] { display: none !important; }

.reference-more {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

.reference-more button {
  min-width: 220px;
  min-height: 50px;
  padding: .8rem 1.2rem;
  border: 1px solid #bfd1ea;
  border-radius: 14px;
  background: #fff;
  color: #36506f;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(38, 64, 104, .07);
}

.reference-more button:hover {
  border-color: var(--ref-blue-bright);
  color: var(--ref-blue);
  transform: translateY(-2px);
}

.reference-topics-section {
  padding: clamp(4.5rem, 7vw, 6.4rem) 0;
  border-top: 1px solid var(--ref-line);
  background: #edf4ff !important;
}

.course-track-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .85rem;
  margin-bottom: 1.4rem;
}

.course-track-tabs button {
  position: relative;
  font: inherit;
  min-height: 156px;
  padding: 1.2rem 1.2rem 1.1rem;
  border: 1px solid #cedced;
  border-radius: 20px;
  background: rgba(255, 255, 255, .82);
  color: #314760;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 12px 26px rgba(38, 64, 104, .055);
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.course-track-tabs button:hover {
  transform: translateY(-2px);
  border-color: #8fb5e8;
  box-shadow: 0 18px 34px rgba(38, 64, 104, .1);
}

.course-track-tabs button[aria-selected="true"] {
  border-color: var(--ref-blue);
  background: linear-gradient(145deg, #245bda, #225fc2);
  color: #fff;
  box-shadow: 0 18px 38px rgba(36, 91, 218, .2);
}

.course-track-tabs button:focus-visible {
  outline: 3px solid #245bda;
  outline-offset: 3px;
}

.course-track-tabs b,
.course-track-tabs span,
.course-track-tabs small { display: block; }

.course-track-tabs b {
  padding-right: 3rem;
  color: inherit;
  font-size: 1.04rem;
}

.course-track-tabs span {
  position: absolute;
  top: 1.05rem;
  right: 1.1rem;
  color: var(--ref-blue);
  font-size: .78rem;
  font-weight: 950;
}

.course-track-tabs button[aria-selected="true"] span { color: #fff; }

.course-track-tabs small {
  margin-top: .78rem;
  color: #586b82;
  font-size: .82rem;
  line-height: 1.58;
}

.course-track-tabs button[aria-selected="true"] small { color: #fff; }

.course-track-panel { animation: reference-panel-in .36s cubic-bezier(.16, 1, .3, 1) both; }
.course-track-panel[hidden] { display: none !important; }

.course-panel-meta {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.2rem;
  margin: 0 0 1rem;
  padding: 1.15rem 1.3rem;
  border: 1px solid #d5e1f0;
  border-radius: 18px;
  background: rgba(255, 255, 255, .68);
}

.course-panel-meta b,
.course-panel-meta span { display: block; }
.course-panel-meta b { color: var(--ref-ink); font-size: 1.15rem; }
.course-panel-meta span { margin-top: .35rem; color: var(--ref-muted); line-height: 1.6; }
.course-panel-meta em { color: var(--ref-blue); font-style: normal; font-size: .84rem; font-weight: 900; white-space: nowrap; }

.course-custom-note {
  margin: 1.2rem 0 0;
  padding: 1rem 1.15rem;
  border: 1px solid #cbdcf0;
  border-radius: 16px;
  background: rgba(255, 255, 255, .72);
  color: #60728a !important;
  font-size: .9rem !important;
  line-height: 1.7 !important;
}

.reference-topics {
  overflow: hidden;
  border: 1px solid #cbdcf0;
  border-radius: 24px;
  background: rgba(255, 255, 255, .72);
}

.reference-topics summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 78px;
  padding: 1.25rem 1.4rem;
  color: #334a68;
  font-size: 1rem;
  font-weight: 900;
  cursor: pointer;
  list-style: none;
}

.reference-topics summary::-webkit-details-marker { display: none; }
.reference-topics summary::after { content: "+"; color: var(--ref-blue); font-size: 1.6rem; }
.reference-topics[open] summary::after { content: "−"; }

.reference-topics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .85rem;
  padding: 0 1.2rem 1.2rem;
}

.reference-topic-card {
  min-height: 148px;
  padding: 1rem;
  border: 1px solid var(--ref-line);
  border-radius: 17px;
  background: #fff;
}

.reference-topic-card h3 { margin: 0 0 .4rem; color: var(--ref-ink); font-size: 1rem; }
.reference-topic-card p { margin: 0; color: var(--ref-muted); font-size: .88rem; line-height: 1.62; }
.reference-topic-card .case-chip { margin-top: .7rem; }

body.cases-page .case-note {
  margin-top: 1.35rem;
  background: #eef8ff;
}

body.cases-page .case-cta {
  padding: 4.5rem 0 6.5rem;
  background: var(--ref-paper);
}

body.cases-page .cta-box {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 10%, rgba(255, 255, 255, .24), transparent 24%),
    linear-gradient(135deg, #245bda 0%, #287de8 54%, #48b986 120%);
}

body.cases-page .cta-box::after {
  content: "";
  position: absolute;
  width: 280px;
  aspect-ratio: 1;
  right: -80px;
  bottom: -160px;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(255, 255, 255, .055), 0 0 0 84px rgba(255, 255, 255, .035);
}

body.cases-page .cta-box > * { position: relative; z-index: 1; }

@media (max-width: 1020px) {
  .reference-hero-grid,
  .reference-section-head,
  .reference-method-head,
  .reference-browser-head,
  .reference-topics-head,
  .reference-story-panel {
    grid-template-columns: 1fr;
  }

  .reference-hero-copy { max-width: 820px; }
  .reference-hero-visual { width: min(760px, 100%); }
  .reference-story-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reference-logo-group { grid-template-columns: repeat(5, minmax(0, 1fr)); row-gap: 1.3rem; }
  .reference-story-media { min-height: 360px; order: -1; }
  .course-track-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  body.cases-page .case-grid,
  .reference-topics-grid,
  .reference-category-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  body.cases-page .case-hero { padding-top: 6.4rem; }
  body.cases-page .case-hero h1 { font-size: clamp(2.65rem, 13vw, 4.15rem); }
  .reference-hero-grid { gap: 2.4rem; }
  .reference-hero-media { border-radius: 22px; }
  .reference-float-chip--one { top: 6%; left: 4%; }
  .reference-float-chip--two { top: 18%; right: 4%; }
  .reference-hero-caption { align-items: flex-start; flex-direction: column; }
  body.cases-page .case-stats { grid-template-columns: 1fr 1fr; }
  body.cases-page .case-stat:first-child { grid-column: 1 / -1; }
  .education-view-tabs { gap: .45rem; padding: .42rem; border-radius: 18px; }
  .education-view-tabs button { min-height: 78px; padding: .85rem; border-radius: 14px; }
  .education-view-tabs span { font-size: 1.04rem; }
  .education-view-tabs small { font-size: .72rem; line-height: 1.45; }
  .reference-story-tabs { display: flex; overflow-x: auto; scrollbar-width: none; }
  .reference-logo-group { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .reference-story-tab { flex: 0 0 190px; }
  .reference-story-panel { min-height: 0; }
  .reference-story-copy { padding: 1.4rem; }
  .reference-story-result { align-items: flex-start; flex-direction: column; }
  .reference-method-grid,
  body.cases-page .case-grid,
  .reference-topics-grid,
  .reference-category-summary { grid-template-columns: 1fr; }
  .reference-method-card { min-height: 240px; }
  .course-track-tabs { display: flex; overflow-x: auto; padding: 4px 4px .5rem; scrollbar-width: none; scroll-snap-type: x proximity; }
  .course-track-tabs::-webkit-scrollbar { display: none; }
  .course-track-tabs button { flex: 0 0 min(78vw, 280px); min-height: 150px; scroll-snap-align: start; }
  .course-panel-meta { align-items: flex-start; flex-direction: column; }
  .reference-filter { top: 72px; margin-inline: -4px; }
  .reference-panel-meta { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .reference-story-tab[aria-selected="true"]::after,
  .reference-story-panel,
  .reference-panel,
  [data-education-view-panel],
  .course-track-panel {
    animation: none !important;
    transition: none !important;
  }

  .education-view-tabs button,
  .course-track-tabs button {
    transform: none !important;
    transition: none !important;
  }

  .reference-hero-media img { transition: none; }
}