/* Temporary CloseTag catalogue proposal; all geometry is isolated from adopted pages. */
.ct-catalog-page {
    --ct-page: #f8f9fc;
    --ct-surface: #ffffff;
    --ct-soft: #f1ebf8;
    --ct-hero-surface: #f1ecf8;
    --ct-hero-glow: #e5d8f1;
    --ct-ink: #242137;
    --ct-muted: #6f607c;
    --ct-accent: #7750b2;
    --ct-accent-hover: #5b378d;
    --ct-on-accent: #ffffff;
    --ct-line: #e2d7ed;
    --ct-line-strong: #b6a1ca;
    --ct-control-line: #9678ad;
    --ct-success: #226343;
    --ct-success-bg: #edf6ef;
    --ct-warning: #825c28;
    --ct-warning-bg: #faf1df;
    --ct-shadow: 0 16px 40px #4425670a;
    --ct-code: #2b2238;
    --ct-code-ink: #f5edf9;
    --ct-code-muted: #c0adc9;
    --ct-code-tag: #d9b4f4;
    --ct-orb-surface: #faf7fd;
    margin: 0;
    background: var(--ct-page);
    color: var(--ct-ink);
    font: 500 15px/1.75 'Cairo', sans-serif;
    -webkit-font-smoothing: antialiased;
}
[data-ct-lesson-theme="dark"] .ct-catalog-page {
    --ct-page: #16131d;
    --ct-surface: #211c2a;
    --ct-soft: #2b2234;
    --ct-hero-surface: #292132;
    --ct-hero-glow: #463158;
    --ct-ink: #eee8f5;
    --ct-muted: #b9abc6;
    --ct-accent: #c09ae5;
    --ct-accent-hover: #d4b6f0;
    --ct-on-accent: #24162f;
    --ct-line: #47374f;
    --ct-line-strong: #82658f;
    --ct-control-line: #9574a5;
    --ct-success: #a0dfb9;
    --ct-success-bg: #203b2d;
    --ct-warning: #eac88e;
    --ct-warning-bg: #3f3223;
    --ct-shadow: 0 16px 40px #00000019;
    --ct-code: #19141f;
    --ct-orb-surface: #31273c;
}
.ct-catalog-page *, .ct-catalog-page *::before, .ct-catalog-page *::after { box-sizing: border-box; }
.ct-catalog-page [hidden] { display: none !important; }
.ct-catalog-page :is(h1,h2,h3,p,ol) { margin: 0; }
.ct-catalog-page a { color: inherit; text-decoration: none; }
.ct-catalog-page :is(button,input) { font: inherit; }
.ct-catalog-page button { cursor: pointer; }
.ct-catalog-page img { max-width: 100%; object-fit: contain; }
.ct-catalog-page :focus-visible { outline: 3px solid var(--ct-accent); outline-offset: 5px; }
.ct-catalog-page :is(#ct-courses,#ct-bootcamps) { scroll-margin-top: 110px; }
.ct-catalog-wrap { width: min(1240px, calc(100% - 88px)); margin-inline: auto; }
.ct-catalog-skip { position: fixed; inset-block-start: -100px; inset-inline-start: 20px; z-index: 100; padding: 12px 20px; background: var(--ct-surface); }
.ct-catalog-skip:focus { inset-block-start: 12px; }
.ct-catalog-header { position: sticky; top: 0; z-index: 30; background: var(--ct-surface); border-bottom: 1px solid var(--ct-line); }
.ct-catalog-header-inner { display: flex; align-items: center; gap: 42px; min-height: 84px; }
.ct-catalog-logo { display: inline-flex; align-items: center; flex-shrink: 0; gap: 10px; }
.ct-catalog-logo img { width: 52px; height: 40px; }
.ct-catalog-logo > span { font-size: 21px; font-weight: 900; letter-spacing: 1px; }
[data-ct-lesson-theme="dark"] .ct-catalog-logo img { filter: brightness(0) invert(1); }
.ct-catalog-nav { display: flex; align-items: center; gap: 27px; font-size: 13px; font-weight: 750; color: var(--ct-muted); }
.ct-catalog-nav > * { white-space: nowrap; position: relative; }
.ct-catalog-nav a { padding-block: 29px; }
.ct-catalog-nav a:hover { color: var(--ct-accent); }
.ct-catalog-nav .ct-is-current { color: var(--ct-accent); }
.ct-catalog-nav .ct-is-current::after { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--ct-accent); position: absolute; inset-block-end: 14px; left: calc(50% - 2px); }
.ct-catalog-nav small { color: var(--ct-muted); background: var(--ct-soft); font-size: 9px; border-radius: 4px; padding: 1px 5px; margin-inline-start: 4px; }
.ct-catalog-header-actions { margin-inline-start: auto; display: flex; gap: 12px; align-items: center; }
.ct-catalog-theme { display: grid; place-items: center; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--ct-line); border-radius: 12px; background: var(--ct-surface); color: var(--ct-accent); }
.ct-catalog-theme:hover { border-color: var(--ct-accent); background: var(--ct-soft); }
.ct-catalog-theme svg { width: 20px; height: 20px; }
.ct-catalog-sun { display: none; }
[data-ct-lesson-theme="dark"] .ct-catalog-sun { display: block; }
[data-ct-lesson-theme="dark"] .ct-catalog-moon { display: none; }
.ct-catalog-button { display: inline-flex; align-items: center; justify-content: center; gap: 30px; border: 1px solid transparent; background: var(--ct-accent); color: var(--ct-on-accent) !important; padding: 13px 25px; min-height: 52px; border-radius: 12px; font-size: 14px; font-weight: 800; box-shadow: 0 8px 20px #6440961a; transition: background .2s, transform .2s, box-shadow .2s; }
.ct-catalog-button:hover { background: var(--ct-accent-hover); transform: translateY(-2px); box-shadow: 0 12px 26px #64409626; }
.ct-catalog-button-small { padding: 9px 17px; min-height: 42px; gap: 16px; font-size: 12px; border-radius: 10px; }
.ct-catalog-arrow { display: inline-block; font: 23px/1 sans-serif; }
[dir="ltr"] .ct-catalog-arrow { transform: scaleX(-1); }
.ct-catalog-hero { background: radial-gradient(ellipse at 12% 53%, var(--ct-hero-glow), transparent 54%), var(--ct-hero-surface); border-bottom: 1px solid var(--ct-line); overflow: clip; }
.ct-catalog-overline { display: flex; justify-content: space-between; align-items: center; padding-block: 27px 12px; color: var(--ct-muted); font-size: 11px; }
.ct-catalog-overline nav { display: flex; align-items: center; gap: 13px; }
.ct-catalog-overline a:hover { color: var(--ct-accent); }
.ct-catalog-preview-label { display: flex; align-items: center; gap: 8px; font-size: 10px; }
.ct-catalog-preview-label i { width: 5px; height: 5px; border-radius: 50%; background: var(--ct-accent); }
.ct-catalog-preview-label > span { border-inline-start: 1px solid var(--ct-line-strong); padding-inline-start: 10px; margin-inline-start: 2px; font: 11px monospace; }
.ct-catalog-hero-grid { display: grid; grid-template-columns: 1.06fr 1fr; gap: 80px; align-items: center; padding-block: 37px 47px; }
.ct-catalog-story { min-width: 0; }
.ct-catalog-eyebrow { display: flex; align-items: center; gap: 9px; color: var(--ct-accent); font-size: 12px; font-weight: 750; line-height: 1.7; margin-bottom: 14px !important; }
.ct-catalog-eyebrow > span { font-size: 22px; }
.ct-catalog-story h1 { display: table; position: relative; font-size: clamp(47px, 4.1vw, 64px); font-weight: 900; letter-spacing: -2.5px; color: var(--ct-accent); line-height: 1.35; margin-bottom: 21px; }
.ct-catalog-story h1 svg { width: 93%; position: absolute; bottom: -6px; inset-inline-start: 2%; fill: none; stroke: var(--ct-accent); stroke-width: 2.6; opacity: .55; stroke-linecap: round; }
.ct-catalog-story h2 { font-size: clamp(28px, 2.7vw, 40px); font-weight: 850; line-height: 1.58; letter-spacing: -.8px; }
.ct-catalog-lead { max-width: 500px; margin-top: 17px !important; color: var(--ct-muted); font-size: 15px; line-height: 2; }
.ct-catalog-hero-actions { display: flex; align-items: center; gap: 27px; margin-top: 26px; }
.ct-catalog-text-link { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; font-size: 12px; color: var(--ct-accent) !important; }
.ct-catalog-text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.ct-catalog-text-link > span { font-size: 19px; }
.ct-catalog-hero-facts { display: flex; align-items: center; flex-wrap: wrap; gap: 23px; margin-top: 30px; font-size: 11px; color: var(--ct-muted); }
.ct-catalog-hero-facts > span { display: flex; align-items: center; gap: 7px; }
.ct-catalog-hero-facts b { font: 600 18px/1.5 'Cairo',sans-serif; color: var(--ct-accent); }
.ct-catalog-hero-facts > span + span { border-inline-start: 1px solid var(--ct-line-strong); padding-inline-start: 23px; }
.ct-catalog-hero-facts i { font-style: normal; color: var(--ct-accent); font-size: 20px; }
.ct-catalog-universe { height: 452px; position: relative; min-width: 0; isolation: isolate; }
.ct-catalog-orbit { position: absolute; border: 1px solid var(--ct-line-strong); border-radius: 50%; aspect-ratio: 1; left: 50%; top: 50%; transform: translate(-50%, -50%); pointer-events: none; }
.ct-catalog-orbit-outer { width: 460px; opacity: .38; }
.ct-catalog-orbit-inner { width: 350px; opacity: .4; border-style: dashed; }
.ct-catalog-orbit-core { width: 248px; opacity: .3; background: var(--ct-soft); }
.ct-catalog-star { position: absolute; color: var(--ct-accent); }
.ct-catalog-star-one { top: 32px; left: 80px; font-size: 33px; }
.ct-catalog-star-two { bottom: 10px; right: 43px; font-size: 42px; }
.ct-catalog-orbit-dot { position: absolute; width: 10px; height: 10px; background: var(--ct-accent); border: 3px solid var(--ct-hero-surface); border-radius: 50%; left: 25px; top: 263px; box-shadow: 0 0 0 1px var(--ct-line-strong); }
.ct-catalog-art-label { position: absolute; top: 13px; right: 85px; color: var(--ct-muted); font: 9px/1.5 monospace; letter-spacing: 2px; }
.ct-catalog-art-label span { display: inline-block; margin-left: 10px; font-size: 20px; }
.ct-catalog-art-code { position: absolute; z-index: 2; top: 119px; width: 352px; left: calc(50% - 176px); border: 1px solid var(--ct-line-strong); border-radius: 17px; background: var(--ct-code); color: var(--ct-code-ink); box-shadow: 0 25px 45px #43236025, 0 0 0 6px #ffffff18; transform: rotate(-4deg); overflow: hidden; }
.ct-catalog-code-top { padding: 13px 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #c3a4de25; color: var(--ct-code-muted); font: 10px monospace; }
.ct-catalog-code-top > span:first-child { display: flex; gap: 4px; }
.ct-catalog-code-top i { width: 5px; height: 5px; border-radius: 50%; background: #b58ad2; }
.ct-catalog-code-top i:nth-child(2) { background: #dabd81; }.ct-catalog-code-top i:nth-child(3) { background: #9cba9e; }
.ct-catalog-code-top b { color: var(--ct-code-tag); font-size: 13px; }
.ct-catalog-code-body { padding: 22px 24px 26px; font: 15px/1.9 Consolas, monospace; }
.ct-catalog-code-comment { display: block; color: var(--ct-code-muted); font: 11px/1.8 'Cairo',sans-serif; margin-bottom: 13px; }
.ct-catalog-code-body em { display: inline-block; color: var(--ct-code-muted); font: normal 10px monospace; margin-right: 16px; }
.ct-catalog-code-body div > span { color: var(--ct-code-tag); }
.ct-catalog-code-result { background: var(--ct-surface); color: var(--ct-ink); display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 13px 19px; font-size: 11px; }
.ct-catalog-code-result b { display: grid; place-items: center; width: 25px; height: 25px; background: var(--ct-soft); border: 1px solid var(--ct-line); color: var(--ct-accent); border-radius: 7px; font-size: 17px; }
.ct-catalog-art-orb { position: absolute; z-index: 3; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 103px; height: 103px; border-radius: 50%; border: 1px solid var(--ct-line-strong); background: radial-gradient(circle at 33% 22%,var(--ct-surface),var(--ct-orb-surface)); box-shadow: inset 0 0 0 6px var(--ct-surface), 0 9px 20px #45266518; }
.ct-catalog-art-orb img { width: 53px; height: 53px; }
.ct-catalog-art-orb > span { font: 700 9px/1.3 'Cairo',sans-serif; color: var(--ct-muted); margin-top: 1px; }
.ct-catalog-art-orb-html { top: 47px; right: 32px; transform: rotate(8deg); width: 112px; height: 112px; }
.ct-catalog-art-orb-css { top: 102px; left: -12px; width: 85px; height: 85px; transform: rotate(-10deg); }
.ct-catalog-art-orb-css img { width: 42px; height: 42px; }
.ct-catalog-art-orb-javascript { bottom: 10px; left: 85px; width: 97px; height: 97px; transform: rotate(-7deg); }
.ct-catalog-art-note { position: absolute; bottom: -21px; left: 15px; right: 0; display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--ct-muted); font-size: 11px; }
.ct-catalog-art-note > span { font-size: 30px; color: var(--ct-accent); }
.ct-catalog-principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ct-line); padding: 22px 0; }
.ct-catalog-principles > span { display: flex; gap: 20px; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }
.ct-catalog-principles > span + span { border-inline-start: 1px solid var(--ct-line); }
.ct-catalog-principles b { font: 11px/1.6 monospace; color: var(--ct-accent); }
.ct-catalog-principles i { font-style: normal; font-size: 20px; color: var(--ct-accent); margin-inline-start: 15px; }
.ct-catalog-library { padding-block: 66px 20px; }
.ct-catalog-section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 25px; margin-bottom: 27px; }
.ct-catalog-section-heading .ct-catalog-eyebrow { margin-bottom: 9px !important; }
.ct-catalog-section-heading h2 { font-size: clamp(23px, 2.3vw, 31px); line-height: 1.65; font-weight: 800; letter-spacing: -.65px; }
.ct-catalog-section-note { display: flex; align-items: center; gap: 15px; padding-bottom: 7px; font-size: 12px; color: var(--ct-muted); }
.ct-catalog-section-note > span { font-size: 26px; color: var(--ct-accent); }
.ct-catalog-featured { display: flex; align-items: center; gap: 25px; padding: 27px 32px; position: relative; overflow: hidden; border: 1px solid var(--ct-line); border-radius: 19px; background: linear-gradient(110deg, var(--ct-soft), var(--ct-surface) 80%); box-shadow: var(--ct-shadow); transition: border-color .2s; }
.ct-catalog-featured:hover { border-color: var(--ct-accent); }
.ct-catalog-featured-icon { display: grid; place-items: center; width: 97px; height: 97px; flex-shrink: 0; position: relative; border-radius: 50%; border: 1px solid var(--ct-line); background: var(--ct-surface); box-shadow: 0 0 0 7px var(--ct-soft); }
.ct-catalog-featured-icon img { width: 57px; height: 57px; }
.ct-catalog-featured-icon span { display: grid; place-items: center; position: absolute; bottom: 0; inset-inline-end: -2px; background: var(--ct-accent); color: var(--ct-on-accent); border: 3px solid var(--ct-surface); border-radius: 50%; width: 27px; height: 27px; font-size: 14px; }
.ct-catalog-kicker { display: flex; align-items: center; gap: 10px; font-size: 10px; line-height: 1.6; color: var(--ct-accent); font-weight: 700; letter-spacing: .35px; }
.ct-catalog-featured-copy h3 { font-size: 23px; line-height: 1.6; margin-top: 5px; font-weight: 800; }
.ct-catalog-featured-copy h3 b { color: var(--ct-accent); }
.ct-catalog-featured-copy p { color: var(--ct-muted); font-size: 12px; margin-top: 5px; max-width: 440px; }
.ct-catalog-featured-meta { margin-inline-start: auto; flex-shrink: 0; display: flex; flex-direction: column; gap: 6px; color: var(--ct-muted); font-size: 11px; padding-inline: 22px; border-inline-start: 1px solid var(--ct-line); }
.ct-catalog-featured-meta > span:first-child { color: var(--ct-success); display: flex; gap: 7px; align-items: center; }
.ct-catalog-featured-meta i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.ct-catalog-featured-go { display: flex; align-items: center; gap: 18px; color: var(--ct-accent); font-size: 12px; font-weight: 800; white-space: nowrap; }
.ct-catalog-featured-go > span { display: grid; place-items: center; border: 1px solid var(--ct-line-strong); border-radius: 50%; width: 39px; height: 39px; }
.ct-catalog-tools { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-block: 35px 18px; }
.ct-catalog-filters { display: flex; flex-wrap: wrap; gap: 5px; }
.ct-catalog-filters button { color: var(--ct-muted); background: transparent; border: 1px solid transparent; padding: 9px 15px; border-radius: 9px; font-size: 11px; font-weight: 750; min-height: 42px; }
.ct-catalog-filters button:hover { color: var(--ct-accent); background: var(--ct-soft); }
.ct-catalog-filters [aria-pressed="true"] { color: var(--ct-accent-hover); background: var(--ct-soft); border-color: var(--ct-line); }
.ct-catalog-search { display: flex; align-items: center; gap: 10px; width: 280px; flex-shrink: 0; min-height: 44px; background: var(--ct-surface); border: 1px solid var(--ct-control-line); padding: 9px 13px; border-radius: 10px; color: var(--ct-muted); }
.ct-catalog-search:focus-within { outline: 2px solid var(--ct-accent); outline-offset: 3px; }
.ct-catalog-search svg { width: 17px; height: 17px; flex-shrink: 0; }
.ct-catalog-search input { background: transparent; border: 0; outline: 0; min-width: 0; width: 100%; color: var(--ct-ink); font-size: 11px; padding: 0; }
.ct-catalog-search input::placeholder { color: var(--ct-muted); opacity: 1; }
.ct-catalog-search input:focus-visible { outline: 0; }
.ct-catalog-search kbd { display: grid; place-items: center; width: 20px; height: 21px; border: 1px solid var(--ct-line); border-radius: 4px; flex-shrink: 0; font: 10px monospace; }
.ct-catalog-results { color: var(--ct-muted); font-size: 12px; margin-block: 12px !important; }
.ct-catalog-results:empty { display: none; }
.ct-catalog-groups { display: grid; gap: 24px; }
.ct-catalog-group { padding: 28px 30px 0; background: var(--ct-surface); border: 1px solid var(--ct-line); border-radius: 18px; box-shadow: var(--ct-shadow); }
.ct-catalog-group-heading { display: flex; align-items: center; gap: 17px; }
.ct-catalog-group-number { flex-shrink: 0; display: grid; place-items: center; background: var(--ct-soft); color: var(--ct-accent); border: 1px solid var(--ct-line); border-radius: 13px; width: 47px; height: 52px; font-size: 18px; font-weight: 600; }
.ct-catalog-group-heading h3 { font-size: 17px; font-weight: 800; line-height: 1.8; margin-top: 2px; }
.ct-catalog-group-english { color: var(--ct-muted); font-size: 10px; line-height: 1.7; text-align: start; margin-top: 2px !important; }
[dir="rtl"] .ct-catalog-group-english { text-align: right; }
[dir="ltr"] .ct-catalog-group-english { text-align: left; }
.ct-catalog-group-count { margin-inline-start: auto; display: flex; align-items: center; gap: 11px; flex-shrink: 0; font-size: 11px; color: var(--ct-muted); }
.ct-catalog-group-count svg { width: 17px; height: 17px; color: var(--ct-accent); }
.ct-catalog-materials { display: flex; flex-wrap: wrap; gap: 18px 0; padding-block: 36px 27px; }
.ct-catalog-material { display: flex; flex-direction: column; align-items: center; width: calc(100% / 9); min-width: 0; text-align: center; padding: 0 5px 7px; border-radius: 12px; }
.ct-catalog-material-orb { position: relative; display: grid; place-items: center; width: 93px; height: 93px; border-radius: 50%; background: radial-gradient(ellipse at 35% 20%,var(--ct-surface),var(--ct-orb-surface)); border: 1px solid var(--ct-line); box-shadow: inset 0 0 0 5px var(--ct-surface), 0 7px 14px #47265c09; transition: transform .25s, border-color .25s, box-shadow .25s; }
.ct-catalog-material-orbit { position: absolute; inset: -5px; border: 1px solid var(--ct-line); border-radius: 50%; transition: transform .3s, border-color .25s; }
.ct-catalog-material-orb img { width: 51px; height: 51px; transition: transform .25s; }
.ct-catalog-material-open { display: grid; place-items: center; width: 24px; height: 24px; position: absolute; bottom: -2px; inset-inline-end: -5px; border: 3px solid var(--ct-surface); border-radius: 50%; background: var(--ct-soft); color: var(--ct-accent); font: 15px/1 sans-serif; transition: background .2s, color .2s; }
.ct-catalog-material-name { margin-top: 17px; font-weight: 800; font-size: 14px; line-height: 1.8; }
.ct-catalog-material-description { color: var(--ct-muted); font-size: 11px; margin-top: 3px; line-height: 1.8; }
.ct-catalog-material-status { display: inline-flex; align-items: center; gap: 5px; color: var(--ct-warning); background: var(--ct-warning-bg); padding: 2px 8px; border-radius: 5px; font-size: 10px; font-weight: 650; margin-top: 9px; }
.ct-catalog-material-status i { width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
.ct-catalog-material-available .ct-catalog-material-status { color: var(--ct-success); background: var(--ct-success-bg); }
.ct-catalog-material-available .ct-catalog-material-orbit { border-color: var(--ct-line-strong); }
.ct-catalog-material-available .ct-catalog-material-open { color: var(--ct-on-accent); background: var(--ct-accent); }
.ct-catalog-material:hover .ct-catalog-material-orb, .ct-catalog-material:focus-visible .ct-catalog-material-orb { transform: translateY(-6px); box-shadow: inset 0 0 0 5px var(--ct-surface), 0 14px 25px #7750b224; }
.ct-catalog-material:hover .ct-catalog-material-orbit { border-color: var(--ct-accent); transform: scale(1.035); }
.ct-catalog-material:hover .ct-catalog-material-orb img { transform: scale(1.08) rotate(-4deg); }
.ct-catalog-material:hover .ct-catalog-material-name { color: var(--ct-accent); }
.ct-catalog-material:hover .ct-catalog-material-open { color: var(--ct-on-accent); background: var(--ct-accent); }
.ct-catalog-material-fallback { font: bold 25px monospace; color: var(--ct-accent); }
.ct-catalog-group-foot { display: flex; justify-content: space-between; align-items: center; color: var(--ct-muted); border-top: 1px solid var(--ct-line); padding-block: 12px; font-size: 10px; }
.ct-catalog-group-foot > span:last-child { color: var(--ct-accent); font: 14px monospace; }
.ct-catalog-group-other { display: flex; align-items: center; justify-content: space-between; padding-bottom: 25px; }
.ct-catalog-group-other .ct-catalog-materials { padding: 10px 0 0; min-width: 180px; }
.ct-catalog-group-other .ct-catalog-material { width: 150px; }
.ct-catalog-empty { text-align: center; padding: 65px 25px; border: 1px dashed var(--ct-line-strong); background: var(--ct-surface); border-radius: 18px; }
.ct-catalog-empty > span { font: 58px/1 serif; color: var(--ct-accent); }
.ct-catalog-empty h3 { font-size: 23px; margin-top: 15px; }
.ct-catalog-empty p { color: var(--ct-muted); margin-top: 10px; }
.ct-catalog-empty-actions { margin-top: 25px; display: flex; justify-content: flex-end; }
[dir="rtl"] .ct-catalog-empty-actions { justify-content: flex-end; }
.ct-catalog-roadmap { padding-block: 48px 58px; }
.ct-tree-panel {
    --ct-tree-bg: #533774;
    --ct-tree-deep: #382647;
    --ct-tree-glow: #8660a5;
    --ct-tree-ink: #ffffff;
    --ct-tree-muted: #e5daee;
    --ct-tree-line: #c9afe166;
    --ct-tree-connector: #d0b4e8;
    --ct-tree-card: #664982;
    --ct-tree-card-hover: #765694;
    --ct-tree-step: #4c3666;
    --ct-tree-step-hover: #71508e;
    --ct-tree-number: #efdefd;
    --ct-tree-icon: #f4edf9;
    position: relative;
    isolation: isolate;
    padding: 47px 42px 28px;
    overflow: hidden;
    border: 1px solid var(--ct-tree-line);
    border-radius: 27px;
    background: radial-gradient(ellipse at 0% 50%, var(--ct-tree-glow), transparent 62%), linear-gradient(120deg,var(--ct-tree-bg),var(--ct-tree-deep));
    color: var(--ct-tree-ink);
    box-shadow: 0 22px 60px #3b234b19;
}
[data-ct-lesson-theme="dark"] .ct-tree-panel {
    --ct-tree-bg: #30233e;
    --ct-tree-deep: #221a2b;
    --ct-tree-glow: #533760;
    --ct-tree-muted: #d6c4e4;
    --ct-tree-line: #9575aa80;
    --ct-tree-card: #493453;
    --ct-tree-card-hover: #5d426b;
    --ct-tree-step: #35263f;
    --ct-tree-step-hover: #654877;
    --ct-tree-icon: #e4d8ef;
}
.ct-tree-art { position: absolute; z-index: -1; inset-inline-end: -145px; bottom: 53px; width: 555px; opacity: .16; pointer-events: none; }
.ct-tree-art img { display: block; width: 100%; filter: brightness(0) invert(1); }
[dir="ltr"] .ct-tree-art { transform: scaleX(-1); }
.ct-tree-orbit { position: absolute; z-index: -1; width: 670px; height: 670px; inset-inline-end: -315px; top: -340px; border: 1px solid var(--ct-tree-line); border-radius: 50%; opacity: .42; pointer-events: none; }
.ct-tree-orbit-two { width: 830px; height: 830px; inset-inline-end: -395px; top: -420px; opacity: .2; }
.ct-tree-heading { position: relative; max-width: 800px; margin-inline: auto; text-align: center; }
.ct-tree-eyebrow { display: flex; justify-content: center; align-items: center; gap: 13px; color: var(--ct-tree-number); font-size: 11px; font-weight: 750; letter-spacing: .7px; }
.ct-tree-eyebrow > span { font-size: 14px; }
.ct-tree-heading h2 { margin-top: 14px; font-size: clamp(24px,2.6vw,35px); font-weight: 800; line-height: 1.65; letter-spacing: -.6px; }
.ct-tree-panel .ct-catalog-roadmap-intro { color: var(--ct-tree-muted); font-size: 12px; margin-top: 9px; line-height: 1.95; }
.ct-tree-heading-meta { display: flex; justify-content: center; align-items: center; gap: 13px; color: var(--ct-tree-muted); font-size: 10px; margin-top: 18px; }
.ct-tree-heading-meta > span:first-child { border: 1px solid var(--ct-tree-line); background: var(--ct-tree-step); border-radius: 20px; padding: 4px 12px; color: var(--ct-tree-ink); }
.ct-tree-heading-meta i { width: 3px; height: 3px; background: var(--ct-tree-number); border-radius: 50%; }
.ct-tree-branches { display: grid; gap: 25px; position: relative; margin-top: 42px; margin-inline-start: 19px; }
.ct-tree-branches::before { content: ''; position: absolute; width: 1px; inset-inline-start: -19px; top: 64px; bottom: 64px; background: var(--ct-tree-line); }
.ct-tree-branch { --ct-tree-branch-gap: 42px; display: grid; grid-template-columns: 225px minmax(0,1fr); gap: var(--ct-tree-branch-gap); align-items: center; position: relative; }
.ct-tree-branch::before { content: ''; position: absolute; width: 19px; height: 1px; inset-inline-start: -19px; top: 50%; background: var(--ct-tree-line); }
.ct-tree-path-card { position: relative; padding: 17px 18px 14px; min-height: 128px; display: flex; flex-direction: column; justify-content: center; gap: 8px; background: linear-gradient(110deg,var(--ct-tree-card),var(--ct-tree-step)); border: 1px solid var(--ct-tree-line); border-radius: 16px; box-shadow: 0 9px 25px #20122812; transition: background .25s, border-color .25s, box-shadow .25s; }
.ct-tree-path-card::before { content: ''; position: absolute; width: 7px; height: 7px; background: var(--ct-tree-number); border: 2px solid var(--ct-tree-bg); border-radius: 50%; inset-inline-start: -23px; top: calc(50% - 3px); box-shadow: 0 0 0 4px #d2b2e313; }
.ct-tree-path-card::after { position: absolute; background: var(--ct-tree-connector); opacity: .6; }
.ct-tree-path-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ct-tree-path-meta > span:first-child { width: fit-content; font: 600 10px/1.3 Consolas,monospace; color: var(--ct-tree-number); letter-spacing: .7px; }
.ct-tree-path-number { font: 500 19px/1.3 'Cairo',sans-serif; color: var(--ct-tree-number); opacity: .7; }
.ct-tree-path-card h3 { color: var(--ct-tree-ink); font-size: 14px; line-height: 1.8; font-weight: 800; }
.ct-tree-path-card > p { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--ct-tree-muted); font-size: 10px; }
.ct-tree-direction { font: 21px/1 sans-serif; color: var(--ct-tree-number); }
[dir="ltr"] .ct-tree-direction { transform: scaleX(-1); }
.ct-tree-steps { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); column-gap: 25px; row-gap: 22px; list-style: none; padding: 0; min-width: 0; }
.ct-tree-step { grid-row: var(--ct-step-row); grid-column: var(--ct-step-column); position: relative; min-width: 0; }
.ct-tree-step:first-child::before { content: ''; position: absolute; width: var(--ct-tree-branch-gap); height: 1px; inset-inline-start: calc(-1 * var(--ct-tree-branch-gap)); top: 50%; background: var(--ct-tree-connector); opacity: .6; }
.ct-tree-step:not(:last-child)::after { content: '←'; position: absolute; inset-inline-end: -25px; inset-inline-start: auto; top: 50%; width: 25px; text-align: center; transform: translateY(-50%); font: 18px/1 sans-serif; color: var(--ct-tree-connector); opacity: .85; }
[dir="ltr"] .ct-tree-step:not(:last-child)::after { content: '→'; }
.ct-tree-step-return:not(:last-child)::after { content: '→'; inset-inline-start: -25px; inset-inline-end: auto; }
[dir="ltr"] .ct-tree-step-return:not(:last-child)::after { content: '←'; }
.ct-tree-step-turn:not(:last-child)::after { content: ''; width: 13px; height: calc(100% + 22px); inset-inline-end: -13px; inset-inline-start: auto; transform: none; border: 1px solid var(--ct-tree-connector); border-inline-start: 0; border-start-end-radius: 9px; border-end-end-radius: 9px; opacity: .75; }
[dir="ltr"] .ct-tree-step-turn:not(:last-child)::after { content: ''; }
.ct-tree-step-return.ct-tree-step-turn:not(:last-child)::after { inset-inline-start: -13px; inset-inline-end: auto; border-inline-start: 1px solid var(--ct-tree-connector); border-inline-end: 0; border-radius: 0; border-start-start-radius: 9px; border-end-start-radius: 9px; }
.ct-tree-course { position: relative; display: flex; align-items: center; gap: 8px; min-height: 67px; height: 100%; padding: 14px 10px 10px; border: 1px solid var(--ct-tree-line); border-radius: 12px; background: var(--ct-tree-step); color: var(--ct-tree-ink) !important; box-shadow: 0 5px 12px #21142b0d; transition: background .2s, border-color .2s, box-shadow .2s, translate .2s; }
.ct-tree-course-icon { width: 31px; height: 33px; flex-shrink: 0; display: grid; place-items: center; background: var(--ct-tree-icon); border-radius: 8px; box-shadow: inset 0 0 0 1px #ffffff45; }
.ct-tree-course-icon img { width: 25px; height: 25px; }
.ct-tree-course-icon > span { color: var(--ct-tree-bg); font: 700 12px monospace; }
.ct-tree-course-name { display: flex; flex-direction: column; justify-content: center; min-width: 0; overflow-wrap: anywhere; font-size: 11px; font-weight: 800; line-height: 1.7; }
.ct-tree-course-name small { color: var(--ct-tree-muted); font-size: 9px; font-weight: 500; line-height: 1.7; }
.ct-tree-step-number { position: absolute; top: -8px; inset-inline-start: 11px; display: grid; place-items: center; min-width: 21px; height: 16px; padding-inline: 4px; border: 1px solid var(--ct-tree-line); border-radius: 5px; background: var(--ct-tree-bg); color: var(--ct-tree-number); font: 10px/1 Consolas,monospace; }
.ct-tree-branch:hover .ct-tree-path-card, .ct-tree-branch:focus-within .ct-tree-path-card { border-color: var(--ct-tree-number); background: var(--ct-tree-card-hover); box-shadow: 0 0 0 4px #dec2f00a, 0 10px 25px #1c12271a; }
.ct-tree-course:hover, .ct-tree-course:focus-visible { background: var(--ct-tree-step-hover); border-color: var(--ct-tree-number); translate: 0 -3px; box-shadow: 0 9px 18px #190d302a; }
.ct-tree-course:focus-visible { outline: 2px solid var(--ct-tree-ink); outline-offset: 4px; }
.ct-tree-footer { display: flex; align-items: center; gap: 24px; position: relative; margin-top: 35px; padding-top: 20px; border-top: 1px solid var(--ct-tree-line); }
.ct-tree-growth { display: flex; gap: 10px; align-items: center; flex-shrink: 0; color: var(--ct-tree-number); font-size: 11px; font-weight: 700; }
.ct-tree-growth svg { width: 25px; height: 25px; }
.ct-tree-panel .ct-catalog-footnote { margin: 0; color: var(--ct-tree-muted); font-size: 9px; line-height: 1.9; max-width: 610px; margin-inline-start: auto; }
.ct-catalog-about { display: grid; grid-template-columns: 210px 1fr; gap: 60px; border-top: 1px solid var(--ct-line); padding-block: 48px 65px; align-items: center; }
.ct-catalog-about-mark { width: 165px; height: 165px; display: grid; place-items: center; border: 1px solid var(--ct-line); border-radius: 50%; background: var(--ct-soft); box-shadow: 0 0 0 16px var(--ct-page), 0 0 0 17px var(--ct-line); color: var(--ct-accent); font: bold 43px monospace; transform: rotate(-10deg); justify-self: center; }
.ct-catalog-about h2 { font-size: 27px; font-weight: 800; }
.ct-catalog-original-intro { margin-block: 17px; font-size: 12px; color: var(--ct-muted); line-height: 2; }
.ct-catalog-original-intro p + p { margin-top: 6px; }
.ct-catalog-closing { background: var(--ct-hero-surface); border-block: 1px solid var(--ct-line); }
.ct-catalog-closing > div { display: flex; justify-content: space-between; gap: 30px; align-items: center; padding-block: 35px; }
.ct-catalog-closing p { font-size: 24px; line-height: 1.7; font-weight: 800; }
.ct-catalog-footer { display: flex; align-items: center; gap: 28px; padding-block: 30px 34px; font-size: 14px; line-height: 1.7; color: var(--ct-muted); }
.ct-catalog-footer .ct-catalog-logo { color: var(--ct-ink); }
.ct-catalog-footer .ct-catalog-logo img { width: 38px; height: 30px; }
.ct-catalog-footer .ct-catalog-logo span { font-size: 17px; }
.ct-catalog-footer > p { margin: 0; color: var(--ct-ink); font-size: 15px; font-weight: 700; }
.ct-catalog-footer > span { margin-inline-start: auto; font-size: 13px; font-weight: 600; color: var(--ct-muted); }
.ct-catalog-footer > a:last-child { color: var(--ct-accent); font-size: 14px; font-weight: 800; text-underline-offset: 4px; }
.ct-catalog-footer > a:last-child:hover { color: var(--ct-accent-hover); text-decoration: underline; }
.ct-catalog-footer a:focus-visible { outline: 2px solid var(--ct-accent); outline-offset: 4px; border-radius: 6px; }

@media (min-width: 1200px) {
    .ct-catalog-groups { grid-template-columns: 5fr 3fr; }
    .ct-catalog-group { grid-column: 1 / -1; }
    .ct-catalog-group:nth-child(2) { grid-column: 1; }
    .ct-catalog-group:nth-child(3) { grid-column: 2; }
    .ct-catalog-group:nth-child(2), .ct-catalog-group:nth-child(3) { display: flex; flex-direction: column; }
    .ct-catalog-group:nth-child(2) .ct-catalog-material { width: 20%; }
    .ct-catalog-group:nth-child(3) .ct-catalog-material { width: calc(100% / 3); }
    .ct-catalog-group:nth-child(2) .ct-catalog-group-foot, .ct-catalog-group:nth-child(3) .ct-catalog-group-foot { margin-top: auto; }
    .ct-catalog-group:nth-child(3) .ct-catalog-group-count { display: none; }
    .ct-catalog-groups:has(> [hidden]) { grid-template-columns: 1fr; }
    .ct-catalog-groups:has(> [hidden]) > .ct-catalog-group { grid-column: 1; }
    .ct-catalog-groups:has(> [hidden]) .ct-catalog-material { width: calc(100% / 9); }
}

@media (min-width: 1600px) { .ct-catalog-wrap { width: min(1320px, calc(100% - 120px)); } .ct-catalog-hero-grid { gap: 100px; } }
@media (max-width: 1199px) {
    .ct-catalog-wrap { width: calc(100% - 56px); }
    .ct-catalog-header-inner { gap: 25px; }.ct-catalog-nav { gap: 18px; }.ct-catalog-nav > span { display: none; }
    .ct-catalog-hero-grid { gap: 35px; }
    .ct-catalog-universe { transform: scale(.91); transform-origin: center; }
    .ct-catalog-material { width: calc(100% / 6); }
    .ct-catalog-featured { gap: 20px; }.ct-catalog-featured-meta { padding-inline: 12px; }.ct-catalog-featured-copy p { max-width: 320px; }
    .ct-catalog-tools { align-items: flex-start; }.ct-catalog-filters button { padding-inline: 11px; }.ct-catalog-search { width: 235px; }
    .ct-catalog-hero-facts { gap: 14px; }.ct-catalog-hero-facts > span + span { padding-inline-start: 14px; }
}
@media (max-width: 950px) {
    .ct-catalog-nav { gap: 16px; }.ct-catalog-nav a { font-size: 11px; }.ct-catalog-header-inner { gap: 22px; min-height: 73px; }.ct-catalog-logo > span { font-size: 17px; }.ct-catalog-logo img { width: 42px; }
    .ct-catalog-hero-grid { gap: 12px; grid-template-columns: 1fr 1fr; }.ct-catalog-universe { transform: scale(.8); margin-inline: -25px; }.ct-catalog-story h2 { font-size: 30px; }.ct-catalog-lead { font-size: 13px; }
    .ct-catalog-hero-actions { gap: 17px; flex-wrap: wrap; }.ct-catalog-hero-facts > span:last-child { display: none; }
    .ct-catalog-section-note { display: none; }.ct-catalog-featured-meta { display: none; }.ct-catalog-featured-go { margin-inline-start: auto; }
    .ct-catalog-tools { flex-direction: column; align-items: stretch; gap: 14px; }.ct-catalog-search { width: 100%; }
    .ct-catalog-about { gap: 35px; grid-template-columns: 160px 1fr; }.ct-catalog-about-mark { width: 125px; height: 125px; font-size: 34px; }
}
@media (max-width: 720px) {
    .ct-catalog-wrap { width: calc(100% - 36px); }
    .ct-catalog-header-inner { min-height: 69px; gap: 15px; flex-wrap: wrap; padding-top: 11px; }.ct-catalog-header-actions { gap: 8px; }.ct-catalog-header-actions .ct-catalog-button-small { padding: 7px 12px; font-size: 10px; gap: 10px; min-height: 37px; }.ct-catalog-theme { width: 37px; height: 37px; padding: 8px; }.ct-catalog-logo { gap: 6px; }.ct-catalog-logo > span { font-size: 16px; }.ct-catalog-logo img { width: 37px; height: 32px; }
    .ct-catalog-nav { display: flex; width: 100%; order: 3; justify-content: space-between; border-top: 1px solid var(--ct-line); gap: 12px; }.ct-catalog-nav a { padding-block: 10px; font-size: 10px; }.ct-catalog-nav .ct-is-current::after { bottom: 2px; width: 3px; height: 3px; }
    .ct-catalog-hero-grid { grid-template-columns: 1fr; padding-block: 27px 20px; gap: 0; }.ct-catalog-overline { padding-top: 20px; font-size: 10px; }.ct-catalog-preview-label { font-size: 9px; }
    .ct-catalog-story h1 { font-size: 51px; }.ct-catalog-story h2 { font-size: 32px; line-height: 1.55; letter-spacing: -.6px; }.ct-catalog-eyebrow { font-size: 11px; }.ct-catalog-lead { max-width: 530px; font-size: 13px; line-height: 2; }.ct-catalog-hero-actions { margin-top: 22px; gap: 20px; }.ct-catalog-button { padding: 12px 18px; gap: 20px; font-size: 12px; min-height: 48px; }.ct-catalog-text-link { font-size: 10px; }.ct-catalog-hero-facts { margin-top: 24px; gap: 19px; }.ct-catalog-hero-facts > span + span { padding-inline-start: 19px; }.ct-catalog-hero-facts > span:last-child { display: flex; }
    .ct-catalog-universe { width: min(430px, 100%); height: 402px; transform: none; margin: 33px auto 8px; }.ct-catalog-orbit-outer { width: 370px; }.ct-catalog-orbit-inner { width: 285px; }.ct-catalog-orbit-core { width: 200px; }.ct-catalog-art-code { top: 105px; width: 305px; left: calc(50% - 152px); }.ct-catalog-code-body { padding: 18px 20px 20px; font-size: 13px; }.ct-catalog-code-top { font-size: 9px; padding: 10px 14px; }.ct-catalog-art-orb-html { top: 30px; right: 18px; width: 98px; height: 98px; }.ct-catalog-art-orb-css { left: -2px; top: 85px; width: 73px; height: 73px; }.ct-catalog-art-orb-css img { width: 36px; height: 36px; }.ct-catalog-art-orb-javascript { bottom: 0; left: 52px; width: 82px; height: 82px; }.ct-catalog-art-orb-javascript img { width: 45px; height: 45px; }.ct-catalog-art-label { top: 1px; right: 75px; font-size: 8px; }.ct-catalog-art-note { bottom: -35px; font-size: 10px; }.ct-catalog-star-one { left: 49px; top: 15px; font-size: 27px; }.ct-catalog-star-two { right: 24px; bottom: 12px; font-size: 31px; }.ct-catalog-orbit-dot { top: 245px; left: 2px; }
    .ct-catalog-principles { margin-top: 34px; padding-block: 18px; }.ct-catalog-principles > span { font-size: 10px; gap: 7px; }.ct-catalog-principles b { font-size: 8px; }.ct-catalog-principles i { display: none; }
    .ct-catalog-library { padding-top: 43px; }.ct-catalog-section-heading { margin-bottom: 22px; }.ct-catalog-section-heading h2 { font-size: 23px; }.ct-catalog-section-heading .ct-catalog-eyebrow { font-size: 10px; }
    .ct-catalog-featured { padding: 24px 20px; gap: 20px; flex-wrap: wrap; border-radius: 16px; }.ct-catalog-featured-icon { width: 72px; height: 72px; box-shadow: 0 0 0 5px var(--ct-soft); }.ct-catalog-featured-icon img { width: 45px; height: 45px; }.ct-catalog-featured-copy { flex: 1; min-width: 170px; }.ct-catalog-featured-copy h3 { font-size: 20px; }.ct-catalog-featured-copy p { font-size: 10px; }.ct-catalog-kicker { font-size: 9px; }.ct-catalog-featured-go { margin-inline-start: auto; font-size: 10px; gap: 12px; }.ct-catalog-featured-go > span { width: 31px; height: 31px; font-size: 18px; }
    .ct-catalog-tools { margin-top: 24px; }.ct-catalog-filters { gap: 4px; }.ct-catalog-filters button { font-size: 10px; padding: 8px 10px; min-height: 38px; border-radius: 8px; }.ct-catalog-search { min-height: 46px; }.ct-catalog-search input { font-size: 12px; }
    .ct-catalog-group { padding: 22px 17px 0; border-radius: 16px; }.ct-catalog-group-heading { gap: 12px; align-items: flex-start; }.ct-catalog-group-number { width: 37px; height: 44px; border-radius: 10px; font-size: 15px; }.ct-catalog-group-heading h3 { font-size: 14px; line-height: 1.7; margin-top: 4px; }.ct-catalog-group-english { font-size: 9px; margin-top: 6px !important; }.ct-catalog-group-count { display: none; }
    .ct-catalog-materials { row-gap: 27px; padding-top: 31px; }.ct-catalog-material { width: calc(100% / 3); padding-inline: 3px; }.ct-catalog-material-orb { width: 79px; height: 79px; }.ct-catalog-material-orb img { width: 44px; height: 44px; }.ct-catalog-material-name { font-size: 12px; }.ct-catalog-material-description { font-size: 8px; }.ct-catalog-material-status { font-size: 8px; }.ct-catalog-material-open { width: 23px; height: 23px; }.ct-catalog-group-foot { font-size: 9px; }
    .ct-catalog-group-other { display: block; padding-bottom: 0; }.ct-catalog-group-other .ct-catalog-materials { padding-top: 27px; min-width: 0; }.ct-catalog-group-other .ct-catalog-material { width: calc(100% / 3); }
    .ct-catalog-roadmap { padding-block: 35px 40px; }
    .ct-catalog-about { grid-template-columns: 1fr; gap: 35px; padding-block: 40px; }.ct-catalog-about-mark { width: 100px; height: 100px; font-size: 29px; margin-block: 10px; }.ct-catalog-about h2 { font-size: 23px; }.ct-catalog-original-intro { font-size: 12px; }
    .ct-catalog-closing > div { flex-direction: column; align-items: flex-start; gap: 20px; padding-block: 30px; }.ct-catalog-closing p { font-size: 23px; }.ct-catalog-closing .ct-catalog-button { align-self: flex-end; }
    .ct-catalog-footer { flex-wrap: wrap; gap: 10px 20px; padding-block: 26px 30px; }.ct-catalog-footer > p { font-size: 14px; flex-basis: 100%; order: 0; }.ct-catalog-footer > span { font-size: 12.5px; }.ct-catalog-footer > a:last-child { font-size: 13.5px; }.ct-catalog-footer > span { margin-inline-start: 0; }.ct-catalog-footer > a:last-child { margin-inline-start: auto; }
    .ct-catalog-empty { padding: 35px 20px; }.ct-catalog-empty h3 { font-size: 21px; }.ct-catalog-empty p { font-size: 12px; }
}
@media (max-width: 370px) { .ct-catalog-wrap { width: calc(100% - 28px); }.ct-catalog-header-inner { gap: 10px; }.ct-catalog-logo > span { font-size: 14px; }.ct-catalog-hero-facts > span:last-child { display: none; }.ct-catalog-story h2 { font-size: 29px; }.ct-catalog-material-orb { width: 69px; height: 69px; }.ct-catalog-material-orb img { width: 39px; height: 39px; }.ct-catalog-art-code { width: 279px; left: calc(50% - 139px); }.ct-catalog-hero-actions { gap: 15px; } .ct-catalog-nav:has(> a:nth-of-type(6)) { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 8px; justify-items: center; } }
@media (max-width: 430px) { .ct-catalog-hero-facts > span:last-child { display: none; } }
@media (max-width: 1150px) {
    .ct-tree-panel { padding-inline: 29px; }
    .ct-tree-branch { --ct-tree-branch-gap: 30px; grid-template-columns: 190px minmax(0,1fr); }
    .ct-tree-path-card { padding-inline: 14px; }
    .ct-tree-steps { column-gap: 20px; }.ct-tree-step:not(:last-child)::after { width: 20px; inset-inline-end: -20px; }
    .ct-tree-step-return:not(:last-child)::after { inset-inline-start: -20px; inset-inline-end: auto; }
    .ct-tree-step-turn:not(:last-child)::after { width: 10px; inset-inline-end: -10px; }.ct-tree-step-return.ct-tree-step-turn:not(:last-child)::after { inset-inline-start: -10px; inset-inline-end: auto; }
    .ct-tree-course { flex-direction: column; justify-content: center; text-align: center; gap: 5px; padding-inline: 5px; }.ct-tree-course-name { font-size: 11px; }
    .ct-tree-footer { flex-direction: column; gap: 12px; }.ct-tree-panel .ct-catalog-footnote { margin-inline: auto; text-align: center; }
}
@media (max-width: 850px) {
    .ct-tree-panel { padding: 35px 26px 24px; border-radius: 21px; }
    .ct-tree-heading h2 { font-size: 26px; }
    .ct-tree-branches { gap: 30px; margin-top: 30px; margin-inline-start: 15px; }
    .ct-tree-branches::before { inset-inline-start: -15px; top: 59px; bottom: 90px; }
    .ct-tree-branch { grid-template-columns: minmax(0,1fr); gap: 25px; }
    .ct-tree-branch::before { inset-inline-start: -15px; top: 59px; width: 15px; }
    .ct-tree-path-card { min-height: 114px; padding: 15px 19px; }.ct-tree-path-card::before { inset-inline-start: -19px; top: 56px; }
    .ct-tree-path-card::after { content: ''; width: 1px; height: 25px; inset-inline-start: 9%; top: 100%; }
    .ct-tree-step:first-child::before { content: none; }
    .ct-tree-path-card h3 { font-size: 15px; }.ct-tree-path-card > p { justify-content: flex-start; gap: 13px; }
    .ct-tree-art { width: 540px; inset-inline-end: -205px; bottom: 115px; opacity: .12; }
    .ct-tree-course { min-height: 81px; }
}
@media (max-width: 580px) {
    .ct-tree-panel { padding: 31px 23px 22px; }
    .ct-tree-heading h2 { font-size: 25px; line-height: 1.65; letter-spacing: -.3px; }
    .ct-tree-panel .ct-catalog-roadmap-intro { font-size: 11px; }
    .ct-tree-eyebrow { font-size: 10px; }.ct-tree-heading-meta { flex-wrap: wrap; row-gap: 10px; font-size: 9px; }.ct-tree-heading-meta i { display: none; }
    .ct-tree-heading-meta > span:last-child { flex-basis: 100%; }
    .ct-tree-branches { margin-inline-start: 9px; gap: 32px; }.ct-tree-branches::before { inset-inline-start: -12px; top: 60px; bottom: 150px; }
    .ct-tree-branch::before { inset-inline-start: -12px; width: 12px; }
    .ct-tree-path-card { padding-inline: 14px; gap: 5px; }.ct-tree-path-card::before { inset-inline-start: -16px; }.ct-tree-path-card::after { inset-inline-start: 23%; }
    .ct-tree-path-card h3 { font-size: 14px; }.ct-tree-path-card > p { font-size: 10px; }
    .ct-tree-steps { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px 20px; }
    .ct-tree-step { grid-column: var(--ct-step-mobile-column); grid-row: var(--ct-step-mobile-row); }
    .ct-tree-course { min-height: 75px; flex-direction: row; text-align: start; padding: 13px 8px 9px; gap: 7px; }
    .ct-tree-course-icon { width: 28px; height: 31px; border-radius: 7px; }.ct-tree-course-icon img { width: 23px; height: 23px; }
    .ct-tree-course-name { font-size: 11px; }.ct-tree-course-name small { font-size: 8px; }
    .ct-tree-steps .ct-tree-step:not(:last-child)::after { content: '←'; width: 20px; height: auto; inset-inline-end: -20px; inset-inline-start: auto; top: 50%; border: 0; border-radius: 0; transform: translateY(-50%); }
    [dir="ltr"] .ct-tree-steps .ct-tree-step:not(:last-child)::after { content: '→'; }
    .ct-tree-steps .ct-tree-step-mobile-return:not(:last-child)::after { content: '→'; inset-inline-end: auto; inset-inline-start: -20px; }
    [dir="ltr"] .ct-tree-steps .ct-tree-step-mobile-return:not(:last-child)::after { content: '←'; }
    .ct-tree-steps .ct-tree-step-mobile-turn:not(:last-child)::after { content: ''; width: 10px; height: calc(100% + 22px); inset-inline-end: -10px; inset-inline-start: auto; transform: none; border: 1px solid var(--ct-tree-connector); border-inline-start: 0; border-start-end-radius: 8px; border-end-end-radius: 8px; }
    [dir="ltr"] .ct-tree-steps .ct-tree-step-mobile-turn:not(:last-child)::after { content: ''; }
    .ct-tree-steps .ct-tree-step-mobile-return.ct-tree-step-mobile-turn:not(:last-child)::after { inset-inline-start: -10px; inset-inline-end: auto; border-inline-start: 1px solid var(--ct-tree-connector); border-inline-end: 0; border-radius: 0; border-start-start-radius: 8px; border-end-start-radius: 8px; }
    .ct-tree-footer { margin-top: 28px; padding-top: 20px; gap: 13px; }.ct-tree-growth { font-size: 10px; }.ct-tree-panel .ct-catalog-footnote { font-size: 9px; }
    .ct-tree-art { width: 470px; inset-inline-end: -170px; bottom: 215px; opacity: .12; }
}
@media (max-width: 360px) {
    .ct-tree-panel { padding-inline: 17px; }.ct-tree-heading h2 { font-size: 23px; }.ct-tree-course { flex-direction: column; text-align: center; gap: 5px; }.ct-tree-course-name { font-size: 10px; }
}
@media (prefers-reduced-motion: no-preference) { .ct-catalog-story { animation: ct-catalog-enter .65s ease-out both; }.ct-catalog-universe { animation: ct-catalog-enter .85s ease-out both; } @keyframes ct-catalog-enter { from { opacity: 0; translate: 0 12px; } to { opacity: 1; translate: 0 0; } } }
@media (prefers-reduced-motion: reduce) { .ct-catalog-page *, .ct-catalog-page *::before, .ct-catalog-page *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }