/* Shared sculpture artwork; programme layout follows below. */
.ct-bc-cover {
    --ct-cover-ink: #f2e9ff;
    --ct-cover-muted: #ccb6e0;
    --ct-cover-line: #be9cdb45;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    background: radial-gradient(ellipse at 74% 23%, #8053a380, transparent 65%), linear-gradient(140deg, #291936, #442754 63%, #20142e);
    color: var(--ct-cover-ink);
    border-bottom: 1px solid var(--ct-line);
}
.ct-bc-collection-front .ct-bc-cover {
    --ct-cover-ink: #3d3050;
    --ct-cover-muted: #746380;
    --ct-cover-line: #9e83b63d;
    background: radial-gradient(ellipse at 73% 15%, #fcfbf8, transparent 65%), linear-gradient(120deg, #e8e2ee, #dbece5);
}
.ct-bc-collection-back .ct-bc-cover {
    --ct-cover-ink: #f2e7f3;
    --ct-cover-muted: #ccbacf;
    --ct-cover-line: #b7a1bd38;
    background: radial-gradient(ellipse at 77% 34%, #74546870, transparent 64%), linear-gradient(135deg, #27222e, #342836 60%, #201c27);
}
[data-ct-lesson-theme="dark"] .ct-bc-collection-front .ct-bc-cover {
    --ct-cover-ink: #e3f1eb;
    --ct-cover-muted: #b7cec5;
    --ct-cover-line: #a9c7ba40;
    background: radial-gradient(ellipse at 80% 24%, #5070607a, transparent 67%), linear-gradient(125deg, #263a34, #23302f);
}
[data-ct-lesson-theme="dark"] .ct-bc-collection-card { box-shadow: 0 16px 40px #07050b25; }
.ct-bc-collection-card .ct-bc-card-top {
    position: relative;
    z-index: 2;
    height: 50px;
    padding: 18px 22px 8px;
    color: var(--ct-cover-muted);
    font-size: 9px;
    letter-spacing: .3px;
}
.ct-bc-collection-card .ct-bc-card-category { color: var(--ct-cover-ink); font-size: 11px; font-weight: 650; }
.ct-bc-collection-card .ct-bc-card-category::before { background: currentColor; width: 4px; height: 4px; box-shadow: 0 0 0 4px var(--ct-cover-line); margin-inline-end: 3px; }
.ct-bc-atelier { position: relative; height: 274px; direction: ltr; isolation: isolate; }
.ct-bc-cover-index {
    position: absolute;
    left: 18px;
    top: -6px;
    color: transparent;
    -webkit-text-stroke: 1px var(--ct-cover-line);
    font: 500 112px/1 'Cairo', sans-serif;
    letter-spacing: -7px;
    pointer-events: none;
}
.ct-bc-cover-grain { position: absolute; inset: -50px 0 0; opacity: .18; background-image: radial-gradient(var(--ct-cover-muted) .5px, transparent .5px); background-size: 5px 5px; mask-image: linear-gradient(130deg, #000, transparent 80%); }
.ct-bc-object { position: absolute; inset: -12px -3px auto auto; width: 100%; height: 274px; overflow: visible; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.ct-bc-collection-card:hover .ct-bc-object, .ct-bc-collection-card:focus-within .ct-bc-object { transform: translateY(-4px) scale(1.035); }
.ct-bc-cover-type {
    position: absolute;
    left: 22px;
    bottom: 46px;
    z-index: 1;
    color: var(--ct-cover-ink);
    font: 900 clamp(37px, 3.1vw, 47px)/.84 'Cairo', sans-serif;
    letter-spacing: -2px;
    text-align: left;
    pointer-events: none;
}
.ct-bc-cover-type > span { display: block; }
.ct-bc-cover-type > span + span { margin-top: 8px; }
.ct-bc-cover-type i { display: inline-block; font: 24px/1 sans-serif; margin-left: 8px; vertical-align: top; margin-top: 3px; opacity: .7; transition: translate .4s; }
.ct-bc-collection-card:hover .ct-bc-cover-type i { translate: 2px -2px; }
.ct-bc-cover-footer { position: absolute; inset: auto 22px 16px; display: flex; align-items: center; justify-content: space-between; gap: 15px; color: var(--ct-cover-muted); font: 7px/1.2 monospace; letter-spacing: 1px; }
.ct-bc-cover-mark { display: flex; gap: 2px; align-items: center; }
.ct-bc-cover-mark i { height: 11px; width: 1px; background: currentColor; }
.ct-bc-cover-mark i:nth-child(3n) { width: 3px; }
.ct-bc-cover-mark i:last-child { height: 6px; margin-left: 3px; }
.ct-bc-object-guide { stroke: #d1b4ef; stroke-width: .65; opacity: .19; }
.ct-bc-circuit-board { stroke: #9f7ea8; stroke-width: 1; opacity: .45; stroke-linejoin: round; }
.ct-bc-data-flow { stroke: #e0bde8; stroke-width: 1.8; stroke-dasharray: 4 120; stroke-linecap: round; stroke-linejoin: round; animation: ct-bc-data-travel 9s linear infinite; animation-play-state: paused; }
.ct-bc-layer-top { animation: ct-bc-top-breathe 7s ease-in-out infinite; animation-play-state: paused; }
.ct-bc-layer-middle { animation: ct-bc-middle-breathe 7s ease-in-out infinite; animation-play-state: paused; }
.ct-bc-object-cursor { animation: ct-bc-cursor-drift 8s ease-in-out infinite; animation-play-state: paused; }
.ct-bc-object-satellite { animation: ct-bc-small-drift 6s ease-in-out infinite; animation-play-state: paused; }
.ct-bc-object-pulse { animation: ct-bc-object-light 4s ease-in-out infinite; animation-play-state: paused; }
.ct-bc-atelier.ct-bc-animate :is(.ct-bc-data-flow,.ct-bc-layer-top,.ct-bc-layer-middle,.ct-bc-object-cursor,.ct-bc-object-satellite,.ct-bc-object-pulse) { animation-play-state: running; }
@keyframes ct-bc-top-breathe { 0%,100% { translate: 0 0; } 50% { translate: 0 -7px; } }
@keyframes ct-bc-middle-breathe { 0%,100% { translate: 0 0; } 50% { translate: 0 -3px; } }
@keyframes ct-bc-cursor-drift { 0%,100% { translate: 0 0; } 50% { translate: 3px -6px; } }
@keyframes ct-bc-small-drift { 0%,100% { translate: 0 0; } 50% { translate: 0 -5px; } }
@keyframes ct-bc-object-light { 0%,100% { opacity: .95; } 50% { opacity: .4; } }
@keyframes ct-bc-data-travel { to { stroke-dashoffset: -248; } }

/* Content-led, full-width programme panels. */
.ct-bc-cards { grid-template-columns: minmax(0,1fr); gap: 28px; }
.ct-bc-card.ct-bc-program-panel {
    --ct-panel-wash: #eee6f5;
    --ct-panel-wash-soft: #f9f5fc;
    --ct-panel-tint: #8962b3;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    border: 1px solid var(--ct-line);
    border-radius: 24px;
    background: var(--ct-surface);
    box-shadow: 0 14px 35px -25px #37214d26;
    transition: border-color .25s, box-shadow .25s;
}
.ct-bc-card.ct-bc-program-panel:hover, .ct-bc-card.ct-bc-program-panel:focus-within { border-color: var(--ct-line-strong); box-shadow: 0 20px 45px -28px #37214d38; }
.ct-bc-program-panel[hidden] { display: none !important; }
.ct-bc-program-panel.ct-bc-collection-front { --ct-panel-wash: #e3eee9; --ct-panel-wash-soft: #f3f8f5; --ct-panel-tint: #739d8a; }
.ct-bc-program-panel.ct-bc-collection-back { --ct-panel-wash: #eee5eb; --ct-panel-wash-soft: #faf5f8; --ct-panel-tint: #a17c97; }
[data-ct-lesson-theme="dark"] .ct-bc-card.ct-bc-program-panel { --ct-panel-wash: #3d2b4f; --ct-panel-wash-soft: #2d2437; --ct-panel-tint: #9874bd; box-shadow: 0 14px 35px #09061018; }
[data-ct-lesson-theme="dark"] .ct-bc-program-panel.ct-bc-collection-front { --ct-panel-wash: #2c463e; --ct-panel-wash-soft: #25352f; --ct-panel-tint: #94b2a2; }
[data-ct-lesson-theme="dark"] .ct-bc-program-panel.ct-bc-collection-back { --ct-panel-wash: #483344; --ct-panel-wash-soft: #342632; --ct-panel-tint: #bb8dad; }
.ct-bc-panel-main { position: relative; display: grid; grid-template-columns: minmax(0,1.42fr) minmax(0,.9fr); align-items: center; column-gap: 40px; padding: 29px 38px 30px; }
.ct-bc-panel-copy { min-width: 0; position: relative; z-index: 1; }
.ct-bc-panel-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; min-height: 40px; }
.ct-bc-panel-number { color: var(--ct-accent); font: 400 38px/1 monospace; letter-spacing: -2px; }
.ct-bc-panel-category { display: inline-flex; align-items: center; gap: 7px; font-size: 11px; font-weight: 750; color: var(--ct-accent); padding-inline-start: 14px; border-inline-start: 1px solid var(--ct-line-strong); }
.ct-bc-panel-code { font: 9px monospace; color: var(--ct-muted); margin-inline-start: auto; letter-spacing: .6px; }
.ct-bc-panel-copy h3 { max-width: 640px; margin: 0; font-size: clamp(25px,2.3vw,32px); font-weight: 850; line-height: 1.65; letter-spacing: -.8px; color: var(--ct-ink); }
.ct-bc-panel-description { max-width: 620px; margin-top: 12px !important; font-size: 13px; line-height: 2.1; color: var(--ct-muted); }
.ct-bc-panel-description :is(p,ul,ol,blockquote){margin-block:.5em}
.ct-bc-panel-description :is(ul,ol){padding-inline-start:1.6em;list-style-position:outside}
.ct-bc-panel-description ul{list-style-type:disc}.ct-bc-panel-description ol{list-style-type:decimal}
.ct-bc-panel-description a{color:var(--ct-accent);text-decoration:underline;overflow-wrap:anywhere}
.ct-bc-panel-description blockquote{padding-inline-start:1em;border-inline-start:3px solid var(--ct-accent)}
.ct-bc-panel-facts { display: flex; align-items: center; gap: 24px; margin-top: 25px; }
.ct-bc-panel-count, .ct-bc-panel-format { display: flex; align-items: center; gap: 11px; }
.ct-bc-panel-count b { font: 400 32px/1 monospace; color: var(--ct-accent); letter-spacing: -1px; }
.ct-bc-panel-facts span { font-size: 11px; font-weight: 700; color: var(--ct-ink); }
.ct-bc-panel-facts small { display: block; margin-top: 2px; font-size: 9px; font-weight: 400; color: var(--ct-muted); }
.ct-bc-panel-fact-divider { width: 1px; height: 30px; background: var(--ct-line); }
.ct-bc-panel-format svg { width: 33px; height: 33px; color: var(--ct-accent); }
.ct-bc-panel-seal { width: 24px; height: 24px; object-fit: contain; }
.ct-bc-panel-visual { position: relative; min-width: 0; height: 285px; align-self: center; isolation: isolate; direction: ltr; }
.ct-bc-panel-visual::before { content: ''; position: absolute; inset: -20px -42px -20px -15px; z-index: -1; background: radial-gradient(ellipse at 50% 50%, var(--ct-panel-wash), transparent 71%); }
.ct-bc-panel-visual::after { content: ''; position: absolute; width: 235px; height: 235px; border: 1px solid var(--ct-line); border-radius: 50%; left: 50%; top: 50%; translate: -50% -50%; z-index: -1; opacity: .65; }
.ct-bc-program-panel .ct-bc-cover, [data-ct-lesson-theme="dark"] .ct-bc-program-panel .ct-bc-cover { height: 100%; overflow: visible; background: none; border: 0; }
.ct-bc-program-panel .ct-bc-card-top, .ct-bc-program-panel .ct-bc-cover-type, .ct-bc-program-panel .ct-bc-cover-footer, .ct-bc-program-panel .ct-bc-cover-index, .ct-bc-program-panel .ct-bc-cover-grain { display: none; }
.ct-bc-program-panel .ct-bc-atelier { height: 100%; }
.ct-bc-program-panel .ct-bc-object { width: 112%; height: 285px; top: -10px; right: 0; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.ct-bc-program-panel:hover .ct-bc-object { transform: translateY(-3px); }
.ct-bc-panel-visual-label { position: absolute; inset: 7px 0 auto; text-align: center; font: 800 45px/1 'Cairo',sans-serif; letter-spacing: -1.4px; color: transparent; -webkit-text-stroke: 1px var(--ct-line-strong); opacity: .44; }
.ct-bc-panel-visual-caption { position: absolute; bottom: -2px; inset-inline: 0; display: flex; align-items: center; justify-content: center; gap: 18px; color: var(--ct-muted); font: 6.5px monospace; letter-spacing: 1.1px; }
.ct-bc-panel-visual-caption i { font: 21px/1 sans-serif; color: var(--ct-accent); }
.ct-bc-program-panel .ct-bc-panel-curriculum { border-top: 1px solid var(--ct-line); }
.ct-bc-program-panel .ct-bc-panel-curriculum > summary { display: grid; grid-template-columns: 135px minmax(0,1fr) auto; align-items: center; gap: 22px; min-height: 89px; padding: 18px 29px; border: 0; border-radius: 0; background: var(--ct-panel-wash-soft); color: var(--ct-ink); transition: background .2s; }
.ct-bc-program-panel .ct-bc-panel-curriculum > summary:hover, .ct-bc-program-panel .ct-bc-panel-curriculum[open] > summary { background: var(--ct-soft); color: var(--ct-ink); }
.ct-bc-program-panel .ct-bc-panel-curriculum > summary:focus-visible { outline: 2px solid var(--ct-accent); outline-offset: -5px; }
.ct-bc-panel-road-label { font-size: 12px; font-weight: 800; }
.ct-bc-panel-road-label small { display: block; font-size: 9px; color: var(--ct-muted); font-weight: 400; margin-top: 3px; }
.ct-bc-panel-preview { --ct-preview-gap: 20px; --ct-preview-column-gap: 24px; display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); grid-auto-rows: 1fr; align-items: stretch; gap: var(--ct-preview-gap) var(--ct-preview-column-gap); min-width: 0; padding: 10px 14px; border-inline-start: 1px solid var(--ct-line); }
.ct-bc-panel-preview > .ct-bc-preview-chip { position: relative; display: block; min-width: 0; min-height: 41px; padding: 0; border: 0; color: var(--ct-ink); container-type: inline-size; }
.ct-bc-preview-chip-content { display: flex; align-items: center; justify-content: flex-start; gap: 7px; width: 100%; height: 100%; box-sizing: border-box; min-width: 0; min-height: 41px; padding: 5px 6px; border: 1px solid transparent; border-radius: 11px; font-size: 12px; font-weight: 700; line-height: 1.6; transition: transform .22s, background .22s, border-color .22s, box-shadow .22s, color .22s; }
.ct-bc-preview-name { min-width: 0; overflow-wrap: anywhere; }
.ct-bc-preview-logo { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.ct-bc-preview-chip > * { position: relative; z-index: 1; }

@container (max-width: 115px) {
    .ct-bc-preview-chip-content { flex-direction: column; justify-content: center; gap: 5px; text-align: center; }
    .ct-bc-preview-name { overflow-wrap: normal; word-break: normal; white-space: normal; text-align: center; }
}

/* Summary preview road: one exclusive connector geometry per column range. */
@media (min-width: 1281px) {
    .ct-bc-panel-preview { grid-template-columns: repeat(6,minmax(0,1fr)); --ct-preview-gap: 20px; --ct-preview-column-gap: 24px; padding-inline: 14px; }
    .ct-bc-panel-preview > .ct-bc-preview-chip { grid-row: var(--ct-preview-wide-row); grid-column: var(--ct-preview-wide-column); }
    .ct-bc-preview-chip::before { content: ''; position: absolute; z-index: 0; pointer-events: none; top: calc(50% - 1px); inset-inline-start: calc(100% - 1px); inset-inline-end: auto; width: calc(var(--ct-preview-column-gap) + 2px); height: 0; border: 0; border-top: 2px solid var(--ct-accent); border-radius: 0; opacity: .78; }
    .ct-bc-preview-chip.ct-bc-preview-return-wide::before { inset-inline-start: auto; inset-inline-end: calc(100% - 1px); }
    .ct-bc-preview-chip.ct-bc-preview-turn-wide::before { width: 14px; height: calc(100% + var(--ct-preview-gap) + 2px); border: 2px solid var(--ct-accent); border-inline-start: 0; border-start-end-radius: 14px; border-end-end-radius: 14px; }
    .ct-bc-preview-chip.ct-bc-preview-turn-wide.ct-bc-preview-return-wide::before { border-inline-start: 2px solid var(--ct-accent); border-inline-end: 0; border-radius: 0; border-start-start-radius: 14px; border-end-start-radius: 14px; }
    .ct-bc-preview-chip:last-child::before { display: none; }
}
@media (min-width: 851px) and (max-width: 1280px) {
    .ct-bc-panel-preview { grid-template-columns: repeat(4,minmax(0,1fr)); --ct-preview-gap: 20px; --ct-preview-column-gap: 22px; padding-inline: 14px; }
    .ct-bc-panel-preview > .ct-bc-preview-chip { grid-row: var(--ct-preview-medium-row); grid-column: var(--ct-preview-medium-column); }
    .ct-bc-preview-chip::before { content: ''; position: absolute; z-index: 0; pointer-events: none; top: calc(50% - 1px); inset-inline-start: calc(100% - 1px); inset-inline-end: auto; width: calc(var(--ct-preview-column-gap) + 2px); height: 0; border: 0; border-top: 2px solid var(--ct-accent); border-radius: 0; opacity: .78; }
    .ct-bc-preview-chip.ct-bc-preview-return-medium::before { inset-inline-start: auto; inset-inline-end: calc(100% - 1px); }
    .ct-bc-preview-chip.ct-bc-preview-turn-medium::before { width: 14px; height: calc(100% + var(--ct-preview-gap) + 2px); border: 2px solid var(--ct-accent); border-inline-start: 0; border-start-end-radius: 14px; border-end-end-radius: 14px; }
    .ct-bc-preview-chip.ct-bc-preview-turn-medium.ct-bc-preview-return-medium::before { border-inline-start: 2px solid var(--ct-accent); border-inline-end: 0; border-radius: 0; border-start-start-radius: 14px; border-end-start-radius: 14px; }
    .ct-bc-preview-chip:last-child::before { display: none; }
}
@media (min-width: 380px) and (max-width: 850px) {
    .ct-bc-panel-preview { grid-template-columns: repeat(3,minmax(0,1fr)); --ct-preview-gap: 21px; --ct-preview-column-gap: 21px; padding-inline: 14px; }
    .ct-bc-panel-preview > .ct-bc-preview-chip { grid-row: var(--ct-preview-tablet-row); grid-column: var(--ct-preview-tablet-column); }
    .ct-bc-preview-chip::before { content: ''; position: absolute; z-index: 0; pointer-events: none; top: calc(50% - 1px); inset-inline-start: calc(100% - 1px); inset-inline-end: auto; width: calc(var(--ct-preview-column-gap) + 2px); height: 0; border: 0; border-top: 2px solid var(--ct-accent); border-radius: 0; opacity: .78; }
    .ct-bc-preview-chip.ct-bc-preview-return-tablet::before { inset-inline-start: auto; inset-inline-end: calc(100% - 1px); }
    .ct-bc-preview-chip.ct-bc-preview-turn-tablet::before { width: 14px; height: calc(100% + var(--ct-preview-gap) + 2px); border: 2px solid var(--ct-accent); border-inline-start: 0; border-start-end-radius: 14px; border-end-end-radius: 14px; }
    .ct-bc-preview-chip.ct-bc-preview-turn-tablet.ct-bc-preview-return-tablet::before { border-inline-start: 2px solid var(--ct-accent); border-inline-end: 0; border-radius: 0; border-start-start-radius: 14px; border-end-start-radius: 14px; }
    .ct-bc-preview-chip:last-child::before { display: none; }
}
@media (max-width: 379px) {
    .ct-bc-panel-preview { grid-template-columns: repeat(2,minmax(0,1fr)); --ct-preview-gap: 20px; --ct-preview-column-gap: 20px; padding-inline: 14px; }
    .ct-bc-panel-preview > .ct-bc-preview-chip { grid-row: var(--ct-preview-mobile-row); grid-column: var(--ct-preview-mobile-column); }
    .ct-bc-preview-chip::before { content: ''; position: absolute; z-index: 0; pointer-events: none; top: calc(50% - 1px); inset-inline-start: calc(100% - 1px); inset-inline-end: auto; width: calc(var(--ct-preview-column-gap) + 2px); height: 0; border: 0; border-top: 2px solid var(--ct-accent); border-radius: 0; opacity: .78; }
    .ct-bc-preview-chip.ct-bc-preview-return-mobile::before { inset-inline-start: auto; inset-inline-end: calc(100% - 1px); }
    .ct-bc-preview-chip.ct-bc-preview-turn-mobile::before { width: 14px; height: calc(100% + var(--ct-preview-gap) + 2px); border: 2px solid var(--ct-accent); border-inline-start: 0; border-start-end-radius: 14px; border-end-end-radius: 14px; }
    .ct-bc-preview-chip.ct-bc-preview-turn-mobile.ct-bc-preview-return-mobile::before { border-inline-start: 2px solid var(--ct-accent); border-inline-end: 0; border-radius: 0; border-start-start-radius: 14px; border-end-start-radius: 14px; }
    .ct-bc-preview-chip:last-child::before { display: none; }
}
.ct-bc-panel-preview img { flex: 0 0 auto; width: 27px; height: 27px; object-fit: contain; transition: transform .22s; }
.ct-bc-panel-explore { display: flex; align-items: center; justify-content: center; gap: 14px; min-height: 44px; padding: 6px 6px 6px 15px; border: 1px solid var(--ct-line-strong); border-radius: 28px; background: var(--ct-surface); color: var(--ct-accent); font-size: 11px; font-weight: 800; white-space: nowrap; transition: transform .22s, border-color .22s, box-shadow .22s, background .22s, color .22s; }
.ct-bc-panel-explore i { display: grid; place-items: center; flex: 0 0 auto; width: 31px; height: 31px; padding: 0; border-radius: 50%; background: var(--ct-accent); color: var(--ct-on-accent); font-style: normal; line-height: 0; }
.ct-bc-panel-explore svg { display: block; width: 17px; height: 17px; transform-origin: center; transition: transform .25s; }
[dir="rtl"] .ct-bc-panel-explore { padding-inline: 15px 6px; }
.ct-bc-panel-curriculum[open] .ct-bc-panel-explore { background: var(--ct-accent); color: var(--ct-on-accent); border-color: var(--ct-accent); }
.ct-bc-panel-curriculum[open] .ct-bc-panel-explore i { background: var(--ct-surface); color: var(--ct-accent); rotate: none; }
.ct-bc-panel-curriculum[open] .ct-bc-panel-explore svg { transform: rotate(45deg); }
.ct-bc-panel-curriculum > summary:focus-visible .ct-bc-panel-explore { outline: 2px solid var(--ct-accent); outline-offset: 3px; }
@media (hover: hover) and (pointer: fine) {
    .ct-bc-panel-preview > .ct-bc-preview-chip:hover .ct-bc-preview-chip-content { transform: translateY(-2px); background: var(--ct-surface); border-color: var(--ct-line-strong); color: var(--ct-accent); box-shadow: 0 6px 16px color-mix(in srgb, var(--ct-accent) 12%, transparent); }
    .ct-bc-panel-preview > .ct-bc-preview-chip:hover img { transform: scale(1.1) rotate(-5deg); }
    .ct-bc-panel-explore:hover { transform: translateY(-2px); border-color: var(--ct-accent); box-shadow: 0 5px 14px color-mix(in srgb, var(--ct-accent) 20%, transparent); }
}
.ct-bc-program-panel .ct-bc-curriculum-body { padding: 26px 32px 32px; }
.ct-bc-panel-curriculum-heading { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 17px; }
.ct-bc-panel-curriculum-heading > span { font-size: 16px; font-weight: 800; }
.ct-bc-panel-curriculum-heading p { font-size: 11px; color: var(--ct-muted); }
.ct-bc-panel-curriculum ol { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.ct-bc-panel-curriculum li, .ct-bc-panel-curriculum li + li { border: 1px solid var(--ct-line); border-radius: 12px; background: var(--ct-page); overflow: hidden; }
.ct-bc-panel-curriculum li a { min-height: 68px; padding: 12px 16px; gap: 11px; transition: background .2s; }
.ct-bc-panel-curriculum li a:hover { background: var(--ct-soft); }
.ct-bc-panel-curriculum li a:focus-visible { outline: 2px solid var(--ct-accent); outline-offset: -4px; border-radius: 12px; }
.ct-bc-panel-curriculum .ct-bc-step { font-size: 10px; }
.ct-bc-panel-curriculum .ct-bc-subject-name { font-size: 13px; }
.ct-bc-panel-curriculum .ct-bc-subject-name small { font-size: 9px; margin-top: 3px; }
.ct-bc-panel-curriculum .ct-bc-curriculum-empty { grid-column: 1/-1; padding: 20px; }
[dir="ltr"] .ct-bc-panel-copy h3 { font-size: clamp(24px,2.2vw,31px); line-height: 1.5; letter-spacing: -.8px; }
[dir="rtl"] .ct-bc-panel-copy { text-align: right; }
[dir="ltr"] .ct-bc-panel-copy { text-align: left; }

/* The DOM keeps the teaching order; alternate grid rows follow a continuous road. */
.ct-bc-panel-curriculum .ct-bc-curriculum-road {
    --ct-road-gap: 26px;
    --ct-road-column-gap: 30px;
    --ct-road-turn: 17px;
    display: grid;
    grid-auto-rows: 1fr;
    gap: var(--ct-road-gap) var(--ct-road-column-gap);
    padding: 4px 19px;
}
.ct-bc-panel-curriculum .ct-bc-road-stop {
    position: relative;
    grid-row: var(--ct-road-row);
    grid-column: var(--ct-road-column);
    min-width: 0;
    border: 0;
    overflow: visible;
    background: none;
}
.ct-bc-road-stop::before {
    content: '';
    position: absolute;
    z-index: 0;
    pointer-events: none;
    top: calc(50% - 1px);
    inset-inline-start: calc(100% - 1px);
    width: calc(var(--ct-road-column-gap) + 2px);
    height: 0;
    border-top: 2px solid var(--ct-accent);
    opacity: .8;
}
.ct-bc-panel-curriculum .ct-bc-road-stop > a {
    position: relative;
    z-index: 1;
    height: 100%;
    min-height: 76px;
    border: 1px solid var(--ct-line);
    border-radius: 12px;
    background: var(--ct-page);
    transition: background .2s, border-color .2s;
}
.ct-bc-panel-curriculum .ct-bc-road-stop > a:hover,
.ct-bc-panel-curriculum .ct-bc-road-stop > a:focus-visible { border-color: var(--ct-accent); background: var(--ct-soft); }
.ct-bc-road-stop .ct-bc-step {
    display: grid;
    place-items: center;
    flex: 0 0 28px;
    height: 28px;
    border: 1px solid var(--ct-line-strong);
    border-radius: 50%;
    background: var(--ct-surface);
    color: var(--ct-accent);
}
.ct-bc-road-stop:first-child .ct-bc-step { border-color: var(--ct-accent); background: var(--ct-accent); color: var(--ct-on-accent); }
.ct-bc-road-stop:last-child .ct-bc-step { outline: 1px solid var(--ct-accent); outline-offset: 3px; }
.ct-bc-road-stop:last-child::before { display: none; }
@media (min-width: 1051px) {
    .ct-bc-road-return-wide::before { inset-inline-start: auto; inset-inline-end: calc(100% - 1px); }
    .ct-bc-road-turn-wide::before {
        width: var(--ct-road-turn);
        height: calc(100% + var(--ct-road-gap) + 2px);
        border: 2px solid var(--ct-accent);
        border-inline-start: 0;
        border-start-end-radius: var(--ct-road-turn);
        border-end-end-radius: var(--ct-road-turn);
    }
    .ct-bc-road-turn-wide.ct-bc-road-return-wide::before {
        border-inline-start: 2px solid var(--ct-accent);
        border-inline-end: 0;
        border-radius: 0;
        border-start-start-radius: var(--ct-road-turn);
        border-end-start-radius: var(--ct-road-turn);
    }
}
@media (min-width: 641px) and (max-width: 1050px) {
    .ct-bc-panel-curriculum .ct-bc-road-stop { grid-row: var(--ct-road-tablet-row); grid-column: var(--ct-road-tablet-column); }
    .ct-bc-road-return-tablet::before { inset-inline-start: auto; inset-inline-end: calc(100% - 1px); }
    .ct-bc-road-turn-tablet::before {
        width: var(--ct-road-turn);
        height: calc(100% + var(--ct-road-gap) + 2px);
        border: 2px solid var(--ct-accent);
        border-inline-start: 0;
        border-start-end-radius: var(--ct-road-turn);
        border-end-end-radius: var(--ct-road-turn);
    }
    .ct-bc-road-turn-tablet.ct-bc-road-return-tablet::before {
        border-inline-start: 2px solid var(--ct-accent);
        border-inline-end: 0;
        border-radius: 0;
        border-start-start-radius: var(--ct-road-turn);
        border-end-start-radius: var(--ct-road-turn);
    }
}
@media (max-width: 1050px) {
    .ct-bc-panel-main { column-gap: 20px; padding: 25px 28px; grid-template-columns: minmax(0,1.35fr) minmax(0,.9fr); }
    .ct-bc-panel-copy h3 { font-size: 26px; }
    .ct-bc-panel-description { font-size: 12px; }
    .ct-bc-panel-facts { gap: 16px; margin-top: 19px; }
    .ct-bc-panel-seal { display: none; }
    .ct-bc-panel-visual { height: 260px; }
    .ct-bc-program-panel .ct-bc-object { height: 260px; }
    .ct-bc-panel-visual-label { font-size: 36px; }
    .ct-bc-program-panel .ct-bc-panel-curriculum > summary { grid-template-columns: 1fr auto; gap: 13px 20px; padding: 17px 26px; }
    .ct-bc-panel-road-label { grid-column: 1; grid-row: 1; }
    .ct-bc-panel-preview { grid-column: 1; grid-row: 2; padding-block: 5px; border: 0; }
    .ct-bc-panel-explore { grid-column: 2; grid-row: 1/3; }
    .ct-bc-panel-road-label small { display: inline; margin-inline-start: 10px; }
    .ct-bc-panel-curriculum ol { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 760px) {
    .ct-bc-panel-main { grid-template-columns: minmax(0,1.55fr) minmax(0,.8fr); column-gap: 12px; padding: 22px; }
    .ct-bc-panel-copy h3, [dir="ltr"] .ct-bc-panel-copy h3 { font-size: 23px; }
    .ct-bc-panel-category { font-size: 10px; }
    .ct-bc-panel-number { font-size: 31px; }
    .ct-bc-panel-code { font-size: 8px; }
    .ct-bc-panel-meta { gap: 9px; }
    .ct-bc-panel-visual, .ct-bc-program-panel .ct-bc-object { height: 205px; }
    .ct-bc-panel-visual::after { width: 165px; height: 165px; }
    .ct-bc-panel-visual-label { font-size: 25px; }
    .ct-bc-panel-visual-caption { font-size: 5px; letter-spacing: .3px; }
    .ct-bc-panel-facts { gap: 12px; }
    .ct-bc-panel-facts span { font-size: 10px; }
    .ct-bc-panel-facts small { font-size: 8px; }
    .ct-bc-panel-count b { font-size: 27px; }
    .ct-bc-panel-format svg { width: 27px; height: 27px; }
    .ct-bc-panel-count, .ct-bc-panel-format { gap: 8px; }
}
@media (max-width: 640px) {
    .ct-bc-cards { gap: 22px; }
    .ct-bc-card.ct-bc-program-panel { border-radius: 19px; }
    .ct-bc-panel-main { display: block; padding: 20px 22px 23px; }
    .ct-bc-panel-meta { min-height: 85px; padding-inline-end: 112px; display: grid; grid-template-columns: auto 1fr; justify-content: start; align-content: center; gap: 6px 11px; margin-bottom: 9px; }
    .ct-bc-panel-number { grid-column: 1; grid-row: 1/3; font-size: 38px; }
    .ct-bc-panel-category { border: 0; padding: 0; font-size: 10px; align-self: end; }
    .ct-bc-panel-code { grid-column: 2; margin: 0; font-size: 8px; align-self: start; }
    .ct-bc-panel-copy h3, [dir="ltr"] .ct-bc-panel-copy h3 { font-size: 24px; line-height: 1.65; letter-spacing: -.6px; }
    .ct-bc-panel-description { margin-top: 10px !important; font-size: 12px; line-height: 2; }
    .ct-bc-panel-facts { justify-content: flex-start; gap: 20px; margin-top: 19px; }
    .ct-bc-panel-count b { font-size: 30px; }
    .ct-bc-panel-visual { position: absolute; top: 14px; inset-inline-end: 8px; width: 132px; height: 105px; }
    [dir="rtl"] .ct-bc-panel-visual { left: 8px; right: auto; }
    .ct-bc-program-panel .ct-bc-object { width: 100%; height: 110px; top: -2px; right: 0; }
    .ct-bc-panel-visual::before { inset: -4px 0; }
    .ct-bc-panel-visual::after { width: 92px; height: 92px; }
    .ct-bc-panel-visual-label, .ct-bc-panel-visual-caption { display: none; }
    .ct-bc-program-panel .ct-bc-panel-curriculum > summary { padding: 17px 20px; gap: 14px; }
    .ct-bc-panel-road-label { align-self: center; font-size: 11px; }
    .ct-bc-panel-road-label small { display: none; }
    .ct-bc-panel-explore { grid-column: 2; grid-row: 1; font-size: 10px; min-height: 39px; gap: 8px; padding-block: 4px; }
    .ct-bc-panel-explore i { width: 28px; height: 28px; }
    .ct-bc-panel-preview { --ct-preview-gap: 18px; --ct-preview-column-gap: 16px; grid-column: 1/-1; grid-row: 2; border-top: 1px solid var(--ct-line); padding-block: 18px 2px; }
    .ct-bc-panel-preview > .ct-bc-preview-chip { min-height: 88px; padding: 0; }
    .ct-bc-panel-preview .ct-bc-preview-chip-content {
        flex-direction: column;
        justify-content: center;
        gap: 6px;
        min-height: 88px;
        padding: 9px 5px 8px;
        border: 1px solid var(--ct-line-strong);
        border-radius: 14px;
        background: linear-gradient(160deg, var(--ct-surface), color-mix(in srgb, var(--ct-surface) 94%, var(--ct-accent)));
        box-shadow: 0 3px 8px color-mix(in srgb, var(--ct-accent) 7%, transparent);
        font-size: 11px;
        line-height: 1.3;
        text-align: center;
    }
    .ct-bc-panel-preview .ct-bc-preview-chip-content::after {
        content: attr(data-ct-preview-step);
        position: absolute;
        inset-block-start: 6px;
        inset-inline-end: 7px;
        font: 8px/1.2 monospace;
        color: var(--ct-muted);
    }
    .ct-bc-panel-preview .ct-bc-preview-logo {
        width: 36px;
        height: 36px;
        border: 1px solid var(--ct-line);
        border-radius: 12px;
        background: var(--ct-soft);
    }
    .ct-bc-panel-preview .ct-bc-preview-name {
        display: grid;
        align-items: center;
        min-height: 2.6em;
        max-width: 100%;
        overflow-wrap: normal;
        word-break: normal;
        white-space: normal;
        text-align: center;
    }
    .ct-bc-panel-preview img { width: 26px; height: 26px; }
    .ct-bc-program-panel .ct-bc-curriculum-body { padding: 20px; }
    .ct-bc-panel-curriculum-heading { display: block; margin-bottom: 15px; }
    .ct-bc-panel-curriculum-heading > span { font-size: 14px; }
    .ct-bc-panel-curriculum-heading p { margin-top: 5px; font-size: 10px; line-height: 1.9; }
    .ct-bc-panel-curriculum ol { grid-template-columns: minmax(0,1fr); gap: 8px; }
    .ct-bc-panel-curriculum li a { padding-inline: 13px; min-height: 65px; }
    .ct-bc-panel-curriculum .ct-bc-curriculum-road { --ct-road-gap: 22px; padding-inline: 0; }
    .ct-bc-panel-curriculum .ct-bc-road-stop { grid-row: auto; grid-column: 1; }
    .ct-bc-road-stop::before {
        top: calc(100% - 1px);
        inset-inline-start: calc(50% - 1px);
        width: 0;
        height: calc(var(--ct-road-gap) + 2px);
        border: 0;
        border-inline-start: 2px solid var(--ct-accent);
    }
}
@media (max-width: 360px) {
    .ct-bc-panel-main { padding-inline: 17px; }
    .ct-bc-panel-meta { padding-inline-end: 89px; gap: 5px 8px; }
    .ct-bc-panel-number { font-size: 32px; }
    .ct-bc-panel-category { font-size: 9px; }
    .ct-bc-panel-visual { width: 108px; height: 95px; inset-inline-end: 3px; top: 16px; }
    [dir="rtl"] .ct-bc-panel-visual { left: 3px; right: auto; }
    .ct-bc-program-panel .ct-bc-object { height: 100px; }
    .ct-bc-panel-copy h3, [dir="ltr"] .ct-bc-panel-copy h3 { font-size: 22px; }
    .ct-bc-panel-facts { gap: 12px; }
    .ct-bc-panel-facts small { font-size: 7.5px; }
    .ct-bc-panel-format svg { display: none; }
    .ct-bc-program-panel .ct-bc-panel-curriculum > summary { padding-inline: 16px; gap: 12px; }
    .ct-bc-panel-explore { font-size: 9px; gap: 7px; }
    .ct-bc-panel-preview { --ct-preview-gap: 18px; --ct-preview-column-gap: 16px; }
    .ct-bc-program-panel .ct-bc-curriculum-body { padding: 17px; }
}
@media (prefers-reduced-motion: reduce) {
    .ct-bc-program-panel *, .ct-bc-program-panel *::before, .ct-bc-program-panel *::after { animation: none !important; transition: none !important; }
    .ct-bc-panel-preview > .ct-bc-preview-chip:hover .ct-bc-preview-chip-content, .ct-bc-panel-preview > .ct-bc-preview-chip:hover img, .ct-bc-panel-explore:hover { transform: none; }
}

/* Public full-stack detail entry. */
.ct-bc-detail-actions{display:flex;flex-wrap:wrap;margin-top:20px;gap:12px}
html[dir=rtl] .ct-bc-detail-actions{justify-content:flex-end}

.ct-bc-generic-art{display:grid;place-items:center;min-height:260px;padding:28px;color:var(--ct-accent)}.ct-bc-generic-art img,.ct-bc-generic-art svg{width:min(100%,240px);height:auto;aspect-ratio:1;object-fit:contain;border-radius:24px}