body:has(.igcse-catalog) {
  background: radial-gradient(ellipse at 13% 23%, #dceeff, transparent 46%),
    radial-gradient(ellipse at 96% 68%, #e5f5ff, transparent 51%), #f5f9fe;
}
.platform-main.igcse-catalog {
  --igcse-surface: #f9fcff;
  --igcse-panel: linear-gradient(155deg, #fff, #f3f8ff);
  --igcse-option: #ffffffda;
  --igcse-selected: #eaf6ff;
  --igcse-edge: #b7dbf6;
  width: min(1300px, calc(100% - 44px));
  margin-block-start: clamp(20px, 4vw, 44px);
}
.igcse-catalog > h1 { margin-block-end: 8px; }
.igcse-subject-intro { max-width: 62ch; }
.platform-main.igcse-catalog .igcse-hero {
  grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
  min-height: 0;
  gap: clamp(20px, 5vw, 78px);
  padding: 0 clamp(0px, 4vw - 28px, 42px) 14px;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.igcse-hero h1 {
  max-width: 17ch;
  margin-block: 14px 18px;
  font-size: clamp(32px, 4vw, 55px);
  line-height: 1.26;
  text-wrap: balance;
}
[dir="rtl"] .igcse-hero h1 { max-width: none; }
.igcse-emphasis { position: relative; display: inline-block; color: var(--blue); }
.igcse-emphasis::after {
  content: '';
  position: absolute;
  inset: auto 4% -6px 4%;
  height: 8px;
  border-top: 3px solid #68c7f1;
  border-radius: 70% 100% 0 0;
  transform: rotate(-4deg);
}
.igcse-hero .sector-label { gap: 7px; align-items: center; }
.igcse-hero .sector-label .ui-icon { width: 18px; height: 18px; }
.igcse-hero .hero-actions a { gap: 9px; }
.igcse-hero .hero-actions .ui-icon { width: 20px; height: 20px; }
.igcse-art { width: min(100%, 510px); }
.igcse-art .float-read { left: 23%; }
.igcse-art .float-chart { bottom: 20%; }

.igcse-catalog #catalog-options { scroll-margin-top: 100px; }
.igcse-finder:focus { outline: none; }
.igcse-finder .journey {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-block: 0 16px;
  border-color: var(--border);
  background: var(--igcse-surface);
}
.igcse-finder .journey li { position: relative; padding-inline-end: 23px; }
.igcse-finder .journey li:not(:last-child)::after {
  content: '';
  position: absolute;
  inset-inline-end: 9px;
  width: 6px;
  height: 6px;
  border: solid var(--blue);
  border-width: 2px 2px 0 0;
  transform: rotate(45deg);
}
[dir="rtl"] .igcse-finder .journey li:not(:last-child)::after { transform: rotate(-135deg); }
.igcse-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}
.igcse-fields.is-start { grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); }
.igcse-field {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--igcse-panel);
  box-shadow: 0 9px 24px #245f8e0f;
}
.igcse-field.is-current { border-color: var(--igcse-edge); }
.igcse-field-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 13px;
  background: var(--tone-bg, #e1f3ff);
  color: var(--tone-ink, #05669d);
}
.igcse-field-head h2 { margin: 0; font-size: clamp(15px, 2vw, 18px); line-height: 1.45; }
.igcse-field-head .ui-icon { flex: none; width: 20px; height: 20px; }
.igcse-options {
  display: grid;
  align-content: start;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}
.igcse-subjects { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.igcse-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  height: 100%;
  min-height: 56px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--igcse-option);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.35;
  text-decoration: none;
  transition: background-color .18s, border-color .18s;
}
.igcse-option.tone-blue { --tone-bg: #e1f3ff; --tone-ink: #05669d; }
.igcse-option:hover, .igcse-option:focus-visible {
  background: var(--igcse-selected);
  border-color: var(--igcse-edge);
}
.igcse-option strong { overflow-wrap: anywhere; }
.igcse-option small { display: block; margin-block-start: 4px; color: var(--muted); font-size: 11px; }
.igcse-option .tile-symbol { width: 34px; height: 34px; border-radius: 10px; }
.igcse-option .tile-symbol .ui-icon { width: 19px; height: 19px; }
.igcse-option > .ui-icon { width: 16px; height: 16px; color: var(--blue); }
[dir="rtl"] :is(.igcse-option > .ui-icon, .igcse-hero .account-primary .ui-icon) { scale: -1 1; }
.platform-main .igcse-field-hint, .platform-main .igcse-chosen {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin: 14px 3px 3px;
  font-size: 14px;
  line-height: 1.6;
}
.igcse-field-hint .ui-icon, .igcse-chosen .ui-icon { width: 16px; height: 16px; flex: none; margin-block-start: 3px; color: var(--blue); }
.igcse-change { display: inline-flex; align-items: center; margin: 3px; min-height: 34px; font-size: 13px; font-weight: 700; }
.igcse-results { margin-block-start: 22px; }
.igcse-results .tile-grid { margin-block-start: 10px; }
.igcse-tracking {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: clamp(15px, 2vw, 22px);
  margin-block: 20px 0;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--igcse-panel);
}
.igcse-tracking > .tile-symbol { flex: none; }
.igcse-tracking > div { flex: 1; }
.igcse-tracking h2 { margin: 0; font-size: 17px; }
.igcse-tracking p { margin: 3px 0 0; font-size: 14px; }

html.home-dark body:has(.igcse-catalog) {
  background: radial-gradient(ellipse at 13% 23%, #233e5c, transparent 51%), #111e32;
}
.home-dark .platform-main.igcse-catalog {
  --igcse-surface: #1c314a;
  --igcse-panel: linear-gradient(155deg, #213953, #1b2d45);
  --igcse-option: #233c58;
  --igcse-selected: #2a4766;
  --igcse-edge: #537eab;
}
@media (max-width: 820px) {
  .platform-main.igcse-catalog { width: calc(100% - 30px); }
  .igcse-fields.is-start { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .igcse-fields.is-start > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .platform-main.igcse-catalog .igcse-hero { grid-template-columns: minmax(0, 1fr); gap: 12px; padding-inline: 0; }
  .igcse-art { width: min(100%, 340px); }
  .igcse-fields { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .igcse-finder .journey { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .igcse-finder .journey li { padding-inline-end: 9px; }
  .igcse-finder .journey li:not(:last-child)::after { content: none; }
  .igcse-tracking { flex-wrap: wrap; }
  .igcse-tracking > a { margin-inline-start: 63px; }
}
@media (max-width: 440px) {
  .igcse-subjects { grid-template-columns: minmax(0, 1fr); }
  .igcse-field { padding: 9px; }
  .igcse-field-head { gap: 6px; padding-inline: 7px; }
  .platform-main .igcse-field-hint { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  .igcse-option { transition: none; }
}