.concepts-page .intro{max-width:58ch;text-wrap:pretty;padding-bottom:.75rem}.concepts-page .ticker{display:flex;align-items:center;gap:.6rem;min-width:0;flex:1 1 18rem;justify-content:flex-end}.concepts-page .tick{min-width:0;max-width:34rem;display:flex;align-items:baseline;gap:.5rem;text-decoration:none;text-transform:lowercase;font-size:.8rem;color:var(--color-content-1);padding:.2rem .5rem;border-radius:999px;transition:opacity .4s ease,background-color .25s ease}.concepts-page .tick:hover,.concepts-page .tick:focus-visible{background:oklch(38% .135 246.4 / .4)}.concepts-page .tick.fading{opacity:0}.concepts-page .tick .when{flex:none;font-family:var(--font-mono);font-size:.7rem;color:var(--color-content-4)}.concepts-page .tick .t{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.concepts-page .tick .where{flex:none;color:var(--color-content-3);white-space:nowrap}.concepts-page .tick .where .d{display:inline-block;width:5px;height:5px;margin-right:.35rem;border-radius:50%;background:var(--color-content-3);vertical-align:.12em}.concepts-page .tick .where .d.tag{background:none;border:1.1px solid var(--color-content-3)}.concepts-page .tick:hover .where .d{background:var(--color-accent-teal);border-color:var(--color-accent-teal)}.concepts-page .step{width:1.4rem;height:1.4rem;display:grid;place-items:center;border-radius:50%;color:var(--color-content-3);font-size:.95rem;cursor:pointer}.concepts-page .step:hover{color:var(--color-content-0);background:oklch(38% .135 246.4 / .4)}@media (max-width: 699px){.concepts-page .ticker{justify-content:flex-start;flex-basis:100%}.concepts-page .tick .where{display:none}}.concept-tree{display:grid;grid-template-columns:minmax(0,1fr);gap:2.25rem;align-items:start}@media (min-width: 1100px){.concept-tree{grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:0}.concept-tree .fac{padding-inline:1.1rem}.concept-tree .fac:first-child{padding-left:0}.concept-tree .fac:last-child{padding-right:0}.concept-tree .fac+.fac{border-left:1px dotted oklch(69% .168 216.2 / .28)}}.concept-tree .fac{display:flex;flex-direction:column;gap:.7rem;min-width:0;scroll-margin-top:5rem}.concept-tree .fac-head{display:flex;flex-direction:column;gap:.1rem}.concept-tree .fac-head .v{font-family:var(--font-serif);font-style:italic;font-size:1.55rem;line-height:1.1;color:var(--color-content-0)}.concept-tree .fac-head .s{font-family:var(--font-mono);font-size:.75rem;color:var(--color-content-3)}.concept-tree .body,.concept-tree .grp{display:grid;grid-template-columns:14px minmax(0,1fr)}.concept-tree .br{position:relative;align-self:stretch}.concept-tree .br svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.concept-tree .br path{fill:none;stroke:#13adcb80;stroke-width:1.3;stroke-linecap:round}.concept-tree .kids{display:flex;flex-direction:column;min-width:0}.concept-tree .body>.kids{gap:.35rem}.concept-tree .grp{scroll-margin-top:5rem}.concept-tree .grp:target>.lab .en{color:var(--color-accent-teal)}.concept-tree .lab{grid-column:1 / -1;padding:.35rem 0 .1rem}.concept-tree .lab .en{font-family:var(--font-header);font-weight:var(--font-weight-semibold);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--color-ocean-300)}.concept-tree .lab .note-line{display:block;font-size:.74rem;color:var(--color-content-3);max-height:0;opacity:0;overflow:hidden;transition:max-height .25s ease,opacity .25s ease}.concept-tree .grp:hover>.lab .note-line,.concept-tree .grp:focus-within>.lab .note-line{max-height:3em;opacity:1}.concept-tree .fold{cursor:pointer;display:inline-flex;align-items:baseline;gap:.45rem;border-radius:4px}.concept-tree .fold .meta{font-family:var(--font-mono);font-size:.72rem;color:var(--color-content-4)}.concept-tree .fold .chev{display:inline-block;transition:transform .2s ease}.concept-tree .grp:not(.collapsed)>.lab .chev{transform:rotate(90deg)}.concept-tree .grp.collapsed>.br,.concept-tree .grp.collapsed>.kids{display:none}.concept-tree .leaf{display:flex;align-items:baseline;gap:.5rem;padding:.14rem .35rem;margin-left:-.35rem;border-radius:6px;font-size:.9rem;font-weight:var(--font-weight-light);color:var(--color-content-1);text-decoration:none;line-height:1.3;transition:background-color .25s ease,color .25s ease}.concept-tree .leaf .d{flex:none;width:7px;height:7px;border-radius:50%;background:var(--color-content-3);transform:translateY(-1px);transition:background-color .25s ease}.concept-tree .leaf.tag{color:var(--color-content-2)}.concept-tree .leaf.tag .d{background:none;border:1.3px solid var(--color-content-3)}.concept-tree .leaf.also{font-style:italic;color:var(--color-content-3)}.concept-tree .leaf.also .d{background:none;border:1.2px dashed var(--color-content-3)}.concept-tree .leaf .m{margin-left:auto;font-family:var(--font-mono);font-size:.72rem;color:var(--color-content-4);white-space:nowrap}.concept-tree .leaf:hover,.concept-tree .leaf:focus-visible{background:oklch(38% .135 246.4 / .45);color:var(--color-content-0)}.concept-tree .leaf:hover .n,.concept-tree .leaf:focus-visible .n{font-weight:var(--font-weight-semibold)}.concept-tree .leaf:hover .d,.concept-tree .leaf:focus-visible .d{background:var(--color-accent-teal);border-color:var(--color-accent-teal)}@media (prefers-reduced-motion: reduce){.concepts-page *{transition:none!important}}