/*
  AxvoidLearn 2.0.0 — theme stylesheet.

  Reads only the --lrn-* design tokens (tokens-color.css, tokens-type.css, tokens-motion.css).
  No hex colours, no raw durations: every duration and delay goes through --lrn-motion-k.
  Component classes use the axvl- prefix. Sections: 1 base, 2 header, 3 display panel, 4 shared,
  5 home (exercise, check), 6 library, 7 lesson, 8 article and generic pages, 9 footer.
*/

/* ---------- 1. base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
html[data-motion="reduced"] { scroll-behavior: auto; }
body { background: var(--lrn-bg); color: var(--lrn-text); font-family: var(--lrn-font-body); font-size: var(--lrn-fs-ui); line-height: var(--lrn-lh-ui); }
a { color: var(--lrn-accent); text-decoration-thickness: 1px; text-underline-offset: .15em; }
:where(a, button, input, textarea, summary, [tabindex]):focus-visible { outline: 2px solid var(--lrn-accent); outline-offset: 3px; }
::selection { background: color-mix(in srgb, var(--lrn-accent) 35%, transparent); }
.axvl-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.axvl-num { font-variant-numeric: tabular-nums lining-nums; }
.axvl-label { font-size: var(--lrn-fs-label); letter-spacing: var(--lrn-ls-label); text-transform: uppercase; font-weight: var(--lrn-w-bold); }
.axvl-eyebrow { font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--lrn-accent); font-weight: 700; margin: 0; }
.axvl-lead { color: var(--lrn-muted); font-size: clamp(16px, 1.5vw, 19px); max-width: 38ch; }
.axvl-sample { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--lrn-muted); }
.axvl-hint { font-size: 12.5px; color: var(--lrn-muted); }
.axvl-display-title { font-weight: 700; line-height: 1; letter-spacing: var(--lrn-ls-display); font-size: clamp(38px, 5vw, 76px); }
.axvl-section-title { font-weight: 700; line-height: 1; letter-spacing: var(--lrn-ls-h2); font-size: clamp(32px, 4.2vw, 62px); }
.axvl-skip-link { position: absolute; left: 12px; top: -60px; background: var(--lrn-accent); color: var(--lrn-on-accent); padding: 8px 14px; border-radius: 8px; font-weight: 700; z-index: 60; text-decoration: none; }
.axvl-skip-link:focus { top: 12px; }

/* core buttons follow the tokens */
.wp-block-button__link { background: var(--lrn-accent); color: var(--lrn-on-accent); border: 1.5px solid var(--lrn-accent); border-radius: 10px; padding: 12px 22px; font-weight: 700; font-size: inherit; text-decoration: none; transition: transform var(--lrn-dur-fast) var(--lrn-ease-standard), filter var(--lrn-dur-fast) linear; }
.wp-block-button__link:hover { transform: translateY(calc(-1 * var(--lrn-move-sm))); filter: brightness(1.08); }
.wp-block-button.is-style-outline .wp-block-button__link { background: transparent; color: var(--lrn-text); border-color: var(--lrn-line); }
.wp-block-button.is-style-outline .wp-block-button__link:hover { background: var(--lrn-hover); filter: none; }
.wp-block-button.axvl-ring .wp-block-button__link { background: transparent; color: var(--lrn-accent); border: 1.5px solid var(--lrn-accent); border-radius: 999px; padding: 7px 14px; font-size: 13px; white-space: nowrap; }

/* shared pieces */
.axvl-chip { display: inline-block; border: 1px solid var(--lrn-muted); color: var(--lrn-muted); border-radius: 999px; padding: 2px 11px; font-size: 11.5px; font-weight: 600; white-space: nowrap; line-height: 1.5; }
.axvl-chip--tested { background: var(--lrn-accent); border-color: var(--lrn-accent); color: var(--lrn-on-accent); font-weight: 700; }
.axvl-chip--prep { border-style: dashed; }
.axvl-chip--start { border-color: var(--lrn-accent); color: var(--lrn-accent); }
.axvl-chip--bad { border-color: var(--lrn-fail); color: var(--lrn-fail); }
.axvl-strip { display: inline-flex; gap: 3px; vertical-align: middle; }
.axvl-sq { width: 11px; height: 11px; border-radius: 2.5px; display: inline-block; }
.axvl-sq--p { background: var(--lrn-accent); }
.axvl-sq--f { background: linear-gradient(to top right, transparent 42%, var(--lrn-panel) 42% 58%, transparent 58%), var(--lrn-fail); }
.axvl-sq--n { border: 1.3px dashed var(--lrn-muted); }
.axvl-seg { display: inline-flex; border: 1px solid var(--lrn-line); border-radius: 999px; overflow: hidden; }
.axvl-seg button { flex: 1; background: none; border: 0; padding: 7px 14px; font-size: 13px; font-weight: 600; white-space: nowrap; cursor: pointer; }
.axvl-seg button[aria-checked="true"], .axvl-seg button[aria-pressed="true"] { background: var(--lrn-accent); color: var(--lrn-on-accent); font-weight: 700; }
.axvl-seg button[disabled] { color: var(--lrn-subtle); border: 1px dashed var(--lrn-line); cursor: not-allowed; }
:is(.axvl-card, .is-style-axvl-card) { background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 16px; padding: 16px 18px; }
.axvl-card__k { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--lrn-muted); font-weight: 700; margin: 0 0 10px; }
.axvl-kv { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; padding: 4px 0; }
.axvl-kv > span:first-child { color: var(--lrn-muted); }
.axvl-fail { position: relative; background: var(--lrn-mark); border-radius: 9px; padding: 8px 12px 8px 16px; margin-top: 8px; font-size: 12.5px; }
.axvl-fail::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--lrn-fail); border-radius: 2px; }
.axvl-fail b { display: block; font-size: 10px; letter-spacing: .14em; color: var(--lrn-fail); }
.axvl-btn { display: inline-block; text-decoration: none; border-radius: 10px; padding: 9px 16px; font-weight: 700; border: 1.5px solid var(--lrn-line); background: none; color: inherit; font-size: 13.5px; cursor: pointer; transition: background-color var(--lrn-dur-fast) linear; }
.axvl-btn:hover { background: var(--lrn-hover); }
.axvl-btn--primary { background: var(--lrn-accent); color: var(--lrn-on-accent); border-color: var(--lrn-accent); }
.axvl-btn--primary:hover { background: var(--lrn-accent); filter: brightness(1.08); }
.axvl-btn[disabled], .axvl-btn[aria-disabled="true"] { opacity: .5; cursor: default; }
@keyframes axvl-rise { from { opacity: 0; transform: translateY(var(--lrn-move-md)); } to { opacity: 1; transform: none; } }
@keyframes axvl-stamp { from { opacity: 0; transform: rotate(-8deg) scale(1.9); } to { opacity: .95; transform: rotate(-8deg) scale(1); } }

/* ---------- 2. header and footer ---------- */
.axvl-header { position: relative; border-bottom: 1px solid var(--lrn-line-soft); }
.axvl-header .wp-block-site-title { font-weight: 700; font-size: inherit; white-space: nowrap; display: flex; align-items: center; gap: 10px; margin: 0; }
.axvl-header .wp-block-site-title::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: var(--lrn-accent); flex: none; }
.axvl-header .wp-block-site-title a { color: inherit; text-decoration: none; }
.axvl-header .wp-block-navigation { color: var(--lrn-muted); font-size: 14px; margin-left: auto; }
.axvl-header .wp-block-navigation a { padding: 5px 12px; border-radius: 8px; text-decoration: none; }
.axvl-header .wp-block-navigation a:hover { background: var(--lrn-hover); color: var(--lrn-text); }
.axvl-header .wp-block-navigation .current-menu-item > a, .axvl-header .wp-block-navigation [aria-current="page"] { background: var(--lrn-raised); color: var(--lrn-text); }
@media (max-width: 520px) { .axvl-header .axvl-ring { display: none; } }
.axvl-footer { border-top: 1px solid var(--lrn-line-soft); color: var(--lrn-muted); font-size: 13.5px; }
.axvl-footer a { color: inherit; }
.axvl-footer a:hover { color: var(--lrn-text); }

/* ---------- 3. display panel ---------- */
.axvl-display__btn { display: inline-flex; align-items: center; gap: 8px; background: none; border: 1px solid var(--lrn-line); border-radius: 999px; padding: 7px 14px; font-weight: 600; white-space: nowrap; cursor: pointer; }
.axvl-display__btn:hover { background: var(--lrn-hover); }
.axvl-display__btn[aria-expanded="true"] { border-color: var(--lrn-accent); box-shadow: 0 0 0 1px var(--lrn-accent); }
.axvl-display__aa { font-weight: 700; letter-spacing: -.04em; }
.axvl-pop { position: absolute; right: var(--wp--style--root--padding-right, 24px); top: calc(100% + 8px); z-index: 40; width: min(380px, calc(100vw - 24px)); background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 16px; padding: 18px; box-shadow: 0 18px 50px rgba(0, 0, 0, .35); }
.axvl-pop[hidden] { display: none; }
@media (max-width: 760px) { .axvl-pop { position: fixed; left: 0; right: 0; top: auto; bottom: 0; width: auto; border-radius: 18px 18px 0 0; max-height: 80vh; overflow: auto; } }
.axvl-pop__h { margin: 0 0 14px; font-size: 15px; display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.axvl-pop__h button { background: none; border: 0; color: var(--lrn-muted); font-size: 20px; line-height: 1; padding: 2px 8px; border-radius: 8px; cursor: pointer; }
.axvl-pop__group { margin: 0 0 16px; }
.axvl-pop__lab { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--lrn-muted); margin: 0 0 8px; font-weight: 700; }
.axvl-pop .axvl-seg { display: flex; }
.axvl-pop .axvl-seg button { padding: 8px 6px; }
.axvl-sizes button { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 7px 4px; }
.axvl-sizes .axvl-aa { font-weight: 700; line-height: 1; letter-spacing: -.04em; }
.axvl-sizes small { font-size: 11px; font-weight: 600; }
.axvl-plates { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.axvl-plate { display: flex; align-items: center; gap: 8px; background: none; border: 1px solid var(--lrn-line); border-radius: 999px; padding: 6px 12px 6px 7px; font-size: 13px; font-weight: 600; text-align: left; cursor: pointer; }
.axvl-plate[aria-checked="true"] { border-color: var(--lrn-accent); box-shadow: 0 0 0 1px var(--lrn-accent); }
.axvl-dots { display: inline-flex; }
.axvl-dots i { width: 14px; height: 14px; border-radius: 50%; margin-left: -4px; border: 1px solid var(--lrn-line); display: block; }
.axvl-dots i:first-child { margin-left: 0; }
.axvl-pop__foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; border-top: 1px solid var(--lrn-line-soft); padding-top: 12px; margin-top: 4px; }
.axvl-pop__foot span { font-size: 12px; color: var(--lrn-muted); }
.axvl-pop__foot button { background: none; border: 1px solid var(--lrn-line); border-radius: 8px; padding: 6px 12px; font-size: 13px; font-weight: 600; cursor: pointer; }

/* ---------- 4. reading progress ---------- */
.axvl-progress { position: fixed; left: 0; top: 0; height: 3px; width: 0; background: var(--lrn-accent); z-index: 50; transition: width calc(120ms * var(--lrn-motion-k)) linear; }

/* ---------- 5. home: the exercise and the check ---------- */
.axvl-ex { position: relative; background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 18px; padding: 18px 20px 16px; }
.axvl-ex__steps { list-style: none; margin: 0 0 14px; padding: 0; display: flex; gap: 6px; flex-wrap: wrap; font-size: 12px; color: var(--lrn-muted); }
.axvl-ex__steps li { display: flex; align-items: center; gap: 7px; border: 1px solid var(--lrn-line); border-radius: 999px; padding: 3px 11px 3px 4px; transition: border-color var(--lrn-dur-base) linear, color var(--lrn-dur-base) linear; }
.axvl-ex__steps li i { display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--lrn-raised); font: 700 10.5px/1 var(--lrn-font-ui); font-style: normal; }
.axvl-ex__steps li.is-on { border-color: var(--lrn-accent); color: var(--lrn-text); }
.axvl-ex__steps li.is-on i, .axvl-ex__steps li.is-done i { background: var(--lrn-accent); color: var(--lrn-on-accent); }
.axvl-ex__steps li.is-done { color: var(--lrn-text); }
.axvl-ex__head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; }
.axvl-ex textarea { display: block; width: 100%; min-height: 118px; resize: vertical; background: var(--lrn-bg); color: var(--lrn-text); border: 1px solid var(--lrn-line); border-radius: 12px; padding: 12px 14px; font: var(--lrn-w-regular) 14px/1.75 var(--lrn-font-code); font-variant-ligatures: none; tab-size: 2; white-space: pre; overflow: auto; }
@media (max-width: 520px) { .axvl-ex textarea { font-size: 12.5px; min-height: 132px; } }
.axvl-ex__tests { margin: 12px 0 4px; display: grid; gap: 6px; min-height: 60px; }
.axvl-test { display: flex; align-items: baseline; gap: 10px; padding: 7px 12px; border-radius: 9px; font: var(--lrn-w-regular) 13px/1.5 var(--lrn-font-code); border: 1px solid var(--lrn-line-soft); background: var(--lrn-bg); min-width: 0; }
.axvl-test__m { font-weight: 700; width: 16px; }
.axvl-test__n { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.axvl-test__r { color: var(--lrn-muted); font-size: 12px; white-space: nowrap; }
.axvl-test.is-pass .axvl-test__m { color: var(--lrn-accent); }
.axvl-test.is-fail { background: var(--lrn-mark); border-color: var(--lrn-fail); }
.axvl-test.is-fail .axvl-test__m, .axvl-test.is-fail .axvl-test__r { color: var(--lrn-fail); }
.axvl-test.is-in { animation: axvl-rise calc(300ms * var(--lrn-motion-k)) var(--lrn-ease-enter) both; animation-delay: calc(var(--i) * 110ms * var(--lrn-motion-k)); }
@media (max-width: 520px) { .axvl-test__r { display: none; } .axvl-test.is-fail .axvl-test__r { display: block; max-width: 44%; overflow: hidden; text-overflow: ellipsis; } }
.axvl-ex__plain { margin: 10px 0 0; font-size: 13.5px; min-height: 22px; }
.axvl-ex__plain b { color: var(--lrn-fail); }
.axvl-ex__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.axvl-ex__msg { min-height: 42px; margin-top: 10px; font-size: 13.5px; color: var(--lrn-muted); }
.axvl-ex__msg b { color: var(--lrn-text); }
.axvl-ex__next { display: inline-block; margin-top: 4px; font-weight: 700; text-decoration: none; }
.axvl-ex__next[hidden] { display: none; }
.axvl-ex__stamp { position: absolute; right: 34px; top: 104px; transform: rotate(-8deg); border: 3px double var(--lrn-accent); color: var(--lrn-accent); border-radius: 8px; padding: 5px 12px; font: 700 15px/1 var(--lrn-font-ui); letter-spacing: .12em; opacity: 0; pointer-events: none; }
.axvl-ex.is-ok .axvl-ex__stamp { animation: axvl-stamp calc(480ms * var(--lrn-motion-k)) var(--lrn-ease-settle) both; }
@media (max-width: 900px) { .axvl-ex__stamp { position: static; display: inline-block; margin: 12px 0 4px; transform: rotate(-4deg); } .axvl-ex.is-ok .axvl-ex__stamp { animation: none; opacity: .95; } }

.axvl-check { background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 18px; padding: 22px 24px 20px; }
.axvl-check__top { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.axvl-check__big { font-size: clamp(36px, 4.6vw, 64px); line-height: 1; font-weight: 700; letter-spacing: -.05em; }
.axvl-check__big small { font-size: .36em; letter-spacing: 0; font-weight: 600; color: var(--lrn-muted); margin-left: 8px; }
.axvl-check__big.is-bad { color: var(--lrn-fail); }
.axvl-switch { display: flex; align-items: center; gap: 12px; }
.axvl-switch button { position: relative; width: 64px; height: 34px; border-radius: 999px; border: 1.5px solid var(--lrn-line); background: var(--lrn-bg); padding: 0; cursor: pointer; transition: background-color var(--lrn-dur-base) linear, border-color var(--lrn-dur-base) linear; }
.axvl-switch button::after { content: ""; position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%; background: var(--lrn-muted); transition: transform var(--lrn-dur-base) var(--lrn-ease-settle), background-color var(--lrn-dur-base) linear; }
.axvl-switch button[aria-checked="true"] { background: color-mix(in srgb, var(--lrn-accent) 22%, var(--lrn-bg)); border-color: var(--lrn-accent); }
.axvl-switch button[aria-checked="true"]::after { transform: translateX(30px); background: var(--lrn-accent); }
.axvl-switch__label { font-weight: 700; font-size: 14px; }
.axvl-switch__state { font-size: 12px; color: var(--lrn-muted); min-width: 34px; font-weight: 700; letter-spacing: .1em; }
.axvl-check__field { display: grid; grid-template-columns: repeat(30, 1fr); gap: 5px; margin: 4px 0 16px; }
.axvl-cell { aspect-ratio: 1; border-radius: 4px; background: var(--lrn-accent); transition: background-color calc(280ms * var(--lrn-motion-k)) var(--lrn-ease-standard), transform calc(280ms * var(--lrn-motion-k)) var(--lrn-ease-settle); transition-delay: calc(var(--d, 0) * 90ms * var(--lrn-motion-k)); }
.axvl-check.is-on .axvl-cell.is-f { background: linear-gradient(to top right, transparent 42%, var(--lrn-panel) 42% 58%, transparent 58%), var(--lrn-fail); transform: scale(1.25); }
.axvl-check__rule { font: var(--lrn-w-regular) 13px/1.6 var(--lrn-font-code); color: var(--lrn-muted); background: var(--lrn-bg); border: 1px solid var(--lrn-line-soft); border-radius: 10px; padding: 9px 12px; }
.axvl-check__cap { margin: 12px 0 0; font-size: 13.5px; min-height: 42px; }
.axvl-check__cap em { font-style: normal; color: var(--lrn-fail); font-weight: 700; }

.axvl-band { border-top: 1px solid var(--lrn-line-soft); text-align: center; }
.axvl-band p { color: var(--lrn-muted); }

/* ---------- 6. library (lessons entry) ---------- */
.axvl-lib__tools { display: flex; flex-wrap: wrap; gap: 12px 22px; align-items: center; margin: 26px 0 16px; padding: 12px 0; border-top: 1px solid var(--lrn-line-soft); border-bottom: 1px solid var(--lrn-line-soft); }
.axvl-lib__group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.axvl-lib__group > span { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--lrn-muted); }
.axvl-lib__chips { display: flex; gap: 6px; flex-wrap: wrap; }
.axvl-fc { background: none; border: 1px solid var(--lrn-line); border-radius: 999px; padding: 5px 13px; font-size: 13px; font-weight: 600; cursor: pointer; }
.axvl-fc:hover { background: var(--lrn-hover); }
.axvl-fc[aria-pressed="true"] { background: var(--lrn-accent); border-color: var(--lrn-accent); color: var(--lrn-on-accent); font-weight: 700; }
.axvl-lib__search { position: relative; }
.axvl-lib__search input { width: 210px; max-width: 100%; background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 999px; padding: 7px 14px 7px 34px; font-size: 13px; }
.axvl-lib__search svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 15px; height: 15px; stroke: var(--lrn-muted); fill: none; stroke-width: 2; stroke-linecap: round; }
.axvl-lib__count-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin: 0 0 14px; }
.axvl-lib__count { font-size: 13px; color: var(--lrn-muted); margin: 0; }
.axvl-lib__count b { color: var(--lrn-text); }
.axvl-lib__layout { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 22px; align-items: start; }
@media (max-width: 980px) { .axvl-lib__layout { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) { .axvl-lib__group { width: 100%; } .axvl-lib__chips { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; margin-right: -18px; scrollbar-width: none; } .axvl-lib__chips::-webkit-scrollbar { display: none; } .axvl-fc { white-space: nowrap; } .axvl-lib__search, .axvl-lib__search input { width: 100%; } }
.axvl-skywrap { position: relative; border: 1px solid var(--lrn-line); border-radius: 18px; background: radial-gradient(50% 70% at 28% 55%, color-mix(in srgb, var(--lrn-accent) 12%, transparent), transparent 72%), var(--lrn-panel); overflow: hidden; }
.axvl-skywrap[hidden], .axvl-list[hidden] { display: none; }
.axvl-sky { display: block; width: 100%; height: auto; }
.axvl-sky text { font-family: var(--lrn-font-ui); }
.axvl-sky__con { font-size: 11px; letter-spacing: .16em; fill: var(--lrn-muted); text-transform: uppercase; font-weight: 700; }
.axvl-sky__con2 { font-size: 11px; fill: var(--lrn-muted); }
.axvl-sky__dark { fill: none; stroke: var(--lrn-line); stroke-width: 1.4; stroke-dasharray: 5 6; }
.axvl-sky__edge { stroke: var(--lrn-subtle); stroke-width: 1.2; stroke-dasharray: 3 4; fill: none; }
.axvl-sky__edge.is-lit { stroke: var(--lrn-accent); stroke-dasharray: none; opacity: .55; stroke-width: 1.5; }
.axvl-star { cursor: pointer; outline: none; transition: opacity var(--lrn-dur-base) linear; }
.axvl-star__halo { fill: var(--lrn-accent); opacity: .32; filter: blur(9px); }
.axvl-star__core { fill: var(--lrn-accent); }
.axvl-star__num { font-size: 12px; font-weight: 700; fill: var(--lrn-accent); letter-spacing: .06em; }
.axvl-star__hit { fill: transparent; stroke: transparent; stroke-width: 1.5; }
.axvl-star__ring { fill: none; stroke: var(--lrn-text); stroke-width: 1.6; opacity: 0; }
.axvl-star--draft .axvl-star__core { fill: none; stroke: var(--lrn-muted); stroke-width: 1.8; }
.axvl-star--prep .axvl-star__core { fill: none; stroke: var(--lrn-muted); stroke-width: 1.5; stroke-dasharray: 2.5 2.5; }
.axvl-star--draft .axvl-star__num, .axvl-star--prep .axvl-star__num { fill: var(--lrn-muted); }
.axvl-star:hover .axvl-star__hit, .axvl-star:focus-visible .axvl-star__hit { stroke: var(--lrn-accent); fill: color-mix(in srgb, var(--lrn-accent) 12%, transparent); }
.axvl-star.is-sel .axvl-star__ring { opacity: 1; }
.axvl-star.is-dim { opacity: .18; }
.axvl-star--tested .axvl-star__core, .axvl-star--tested .axvl-star__halo { transform-box: fill-box; transform-origin: center; }
.axvl-lib.is-go .axvl-star--tested .axvl-star__core, .axvl-lib.is-go .axvl-star--tested .axvl-star__halo { animation: axvl-light calc(700ms * var(--lrn-motion-k)) var(--lrn-ease-enter) calc(var(--i) * 240ms * var(--lrn-motion-k) + 250ms * var(--lrn-motion-k)) both; }
.axvl-lib.is-go .axvl-sky__edge.is-lit { animation: axvl-fade calc(600ms * var(--lrn-motion-k)) linear calc(var(--i) * 240ms * var(--lrn-motion-k) + 450ms * var(--lrn-motion-k)) both; }
@keyframes axvl-light { 0% { opacity: 0; transform: scale(.2); } 60% { opacity: 1; transform: scale(1.5); } 100% { transform: none; } }
@keyframes axvl-fade { from { opacity: 0; } to { opacity: .55; } }
.axvl-tip { position: absolute; pointer-events: none; background: var(--lrn-bg); border: 1px solid var(--lrn-line); border-radius: 10px; padding: 8px 12px; font-size: 12.5px; transform: translate(-50%, -135%); opacity: 0; transition: opacity var(--lrn-dur-fast) linear; white-space: nowrap; z-index: 3; }
.axvl-tip.is-on { opacity: 1; }
.axvl-tip b { display: block; font-size: 13px; }
.axvl-legend { display: flex; gap: 16px; flex-wrap: wrap; padding: 10px 16px 14px; font-size: 12px; color: var(--lrn-muted); border-top: 1px solid var(--lrn-line-soft); }
.axvl-legend i { display: inline-block; width: 11px; height: 11px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; }
.axvl-legend .l1 { background: var(--lrn-accent); box-shadow: 0 0 8px var(--lrn-accent); } .axvl-legend .l2 { border: 1.6px solid var(--lrn-muted); } .axvl-legend .l3 { border: 1.4px dashed var(--lrn-muted); }
.axvl-empty { display: none; padding: 30px 20px; text-align: center; color: var(--lrn-muted); }
.axvl-empty.is-on { display: block; }
.axvl-list { border: 1px solid var(--lrn-line); border-radius: 18px; background: var(--lrn-panel); overflow: hidden; }
.axvl-list__gh { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding: 14px 18px 8px; border-top: 1px solid var(--lrn-line-soft); }
.axvl-list__gh:first-child { border-top: 0; }
.axvl-list__gh h3 { margin: 0; font-size: 15px; letter-spacing: -.01em; }
.axvl-list__gh span { font-size: 12px; color: var(--lrn-muted); }
.axvl-row { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; gap: 4px 14px; align-items: center; width: 100%; text-align: left; background: none; border: 0; border-top: 1px solid var(--lrn-line-soft); padding: 13px 18px; color: inherit; text-decoration: none; cursor: pointer; }
.axvl-row:hover { background: var(--lrn-hover); }
.axvl-row.is-sel { background: var(--lrn-raised); box-shadow: inset 3px 0 0 var(--lrn-accent); }
.axvl-row[hidden] { display: none; }
.axvl-row__n { font-weight: 700; color: var(--lrn-muted); }
.axvl-row__t { font-weight: 600; line-height: 1.3; }
.axvl-row__p { display: block; font-weight: 400; font-size: 12.5px; color: var(--lrn-muted); margin-top: 2px; }
.axvl-row__m { display: flex; gap: 6px 10px; align-items: center; justify-self: end; flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 640px) { .axvl-row { grid-template-columns: 28px minmax(0, 1fr); } .axvl-row__m { grid-column: 2; justify-self: start; justify-content: flex-start; margin-top: 4px; } }
.axvl-list__none { padding: 14px 18px 18px; color: var(--lrn-muted); font-size: 13.5px; border-top: 1px solid var(--lrn-line-soft); }
.axvl-fm { display: inline-flex; gap: 3px; }
.axvl-fm i { font: 700 9.5px/1 var(--lrn-font-ui); width: 18px; height: 15px; display: grid; place-items: center; border-radius: 3px; background: var(--lrn-raised); color: var(--lrn-muted); font-style: normal; }
.axvl-fm i.is-off { background: none; border: 1px dashed var(--lrn-line); color: var(--lrn-line); }
.axvl-prev { position: sticky; top: 16px; background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 18px; padding: 20px; }
@media (max-width: 980px) { .axvl-prev { position: static; } }
.axvl-prev__item[hidden] { display: none; }
.axvl-prev__item { animation: axvl-rise calc(260ms * var(--lrn-motion-k)) var(--lrn-ease-enter) both; }
.axvl-prev h2 { margin: 0 0 10px; font-size: clamp(20px, 2vw, 26px); line-height: 1.15; letter-spacing: -.03em; }
.axvl-prev__row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.axvl-prev p { margin: 0 0 14px; color: var(--lrn-muted); font-size: 14px; }
.axvl-box { background: var(--lrn-bg); border: 1px solid var(--lrn-line-soft); border-radius: 12px; padding: 12px 14px; margin: 0 0 14px; }
.axvl-box__l { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--lrn-muted); font-weight: 700; margin-bottom: 8px; display: block; }
.axvl-btns { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- 7. lesson page ---------- */
.axvl-lesson { display: grid; grid-template-columns: 210px minmax(0, 1fr) 330px; gap: clamp(22px, 3vw, 48px); align-items: start; }
@media (max-width: 1180px) { .axvl-lesson { grid-template-columns: minmax(0, 1fr) 300px; } .axvl-outline { display: none; } }
@media (max-width: 900px) { .axvl-lesson { grid-template-columns: minmax(0, 1fr); } }
.axvl-lesson > * { min-width: 0; }
.axvl-outline { font-size: 13px; }
.axvl-outline__k { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--lrn-muted); font-weight: 700; margin: 0 0 10px; }
.axvl-outline ol { list-style: none; margin: 0 0 22px; padding: 0; border-left: 1px solid var(--lrn-line); }
.axvl-outline a { display: block; color: var(--lrn-muted); text-decoration: none; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; }
.axvl-outline a:hover { color: var(--lrn-text); }
.axvl-outline a.is-on { color: var(--lrn-text); border-left-color: var(--lrn-accent); font-weight: 600; }
.axvl-track a { display: flex; gap: 8px; align-items: center; padding: 4px 0; color: var(--lrn-muted); text-decoration: none; }
.axvl-track a.is-cur { color: var(--lrn-text); font-weight: 600; }
.axvl-track i { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.axvl-track .k-tested { background: var(--lrn-accent); } .axvl-track .k-draft { border: 1.5px solid var(--lrn-muted); } .axvl-track .k-prep { border: 1.4px dashed var(--lrn-muted); }
.axvl-lesson__chips { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.axvl-minirec { display: none; align-items: center; gap: 6px 12px; flex-wrap: wrap; margin: 14px 0 0; padding: 10px 14px; background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 12px; font-size: 13px; }
.axvl-minirec a { margin-left: auto; font-weight: 600; }
@media (max-width: 900px) { .axvl-minirec { display: flex; } }
.axvl-fmt { display: flex; align-items: center; gap: 12px; margin: 24px 0 0; flex-wrap: wrap; }
.axvl-fmt small { color: var(--lrn-muted); font-size: 12px; }
.axvl-rail { position: sticky; top: 20px; display: grid; gap: 14px; }
@media (max-width: 900px) { .axvl-rail { position: static; } }
.axvl-links { display: grid; gap: 8px; font-size: 13.5px; }
.axvl-links a, .axvl-links button { display: flex; justify-content: space-between; align-items: center; gap: 10px; color: inherit; text-decoration: none; background: none; border: 1px solid var(--lrn-line); border-radius: 10px; padding: 9px 12px; font-weight: 600; text-align: left; width: 100%; cursor: pointer; }
.axvl-links a:hover, .axvl-links button:hover { background: var(--lrn-hover); }
.axvl-links button[aria-pressed="true"] { border-color: var(--lrn-accent); color: var(--lrn-accent); }

/* lesson body: headings, code, lists, tracked changes, failure section */
.axvl-prose > * { max-width: var(--lrn-measure); }
.axvl-prose > .alignwide, .axvl-prose > .alignfull, .axvl-prose > .axvl-review, .axvl-prose > .axvl-ex, .axvl-prose > .wp-block-code, .axvl-prose > :is(.axvl-wrong, .is-style-axvl-wrong), .axvl-prose > .wp-block-image { max-width: none; }
.axvl-prose { font: var(--lrn-w-regular) var(--lrn-fs-body)/var(--lrn-lh-body) var(--lrn-font-body); }
.axvl-prose h2 { font-size: clamp(24px, 2.6vw, 34px); letter-spacing: var(--lrn-ls-h2); line-height: 1.15; margin: 44px 0 14px; }
.axvl-prose h3 { font-size: var(--lrn-fs-h3); letter-spacing: var(--lrn-ls-h3); margin: 26px 0 8px; font-weight: 600; }
.axvl-prose p, .axvl-prose ul, .axvl-prose ol { margin: 0 0 16px; }
.axvl-prose :where(code):not(pre code) { font: var(--lrn-w-regular) .9em/1 var(--lrn-font-code); background: var(--lrn-raised); border-radius: 6px; padding: 1px 6px; font-variant-ligatures: none; }
.wp-block-code { background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 14px; padding: 16px 18px; overflow: auto; font: var(--lrn-w-regular) var(--lrn-fs-code)/var(--lrn-lh-code) var(--lrn-font-code); font-variant-ligatures: none; tab-size: 2; margin: 12px 0 18px; }
.wp-block-code code { font: inherit; background: none; padding: 0; }
.axvl-prose .wp-block-image img, .axvl-prose .wp-block-image figure img { border-radius: 14px; border: 1px solid var(--lrn-line); }
.axvl-prose figcaption, .wp-element-caption { font-size: 12.5px; color: var(--lrn-muted); }
.axvl-fit { border-top: 1px solid var(--lrn-line-soft); }
.axvl-fit > div { display: grid; grid-template-columns: 150px 1fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--lrn-line-soft); font-size: 14.5px; }
.axvl-fit > div > :first-child { color: var(--lrn-muted); } .axvl-fit > div > :last-child { font-weight: 600; margin: 0; }
:is(.axvl-wrong, .is-style-axvl-wrong) { position: relative; background: var(--lrn-mark); border-radius: 14px; padding: 18px 22px 14px 26px; margin: 8px 0; }
:is(.axvl-wrong, .is-style-axvl-wrong)::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--lrn-fail); border-radius: 3px; }
:is(.axvl-wrong, .is-style-axvl-wrong) > .axvl-label { color: var(--lrn-fail); margin: 0; }
:is(.axvl-wrong, .is-style-axvl-wrong) h3 { margin: 6px 0 12px; }
:is(.axvl-wrong, .is-style-axvl-wrong) dl { margin: 0; display: grid; grid-template-columns: 130px 1fr; gap: 8px 14px; font-size: 14.5px; }
:is(.axvl-wrong, .is-style-axvl-wrong) dt { color: var(--lrn-muted); } :is(.axvl-wrong, .is-style-axvl-wrong) dd { margin: 0; }
:is(.axvl-product, .is-style-axvl-product) { border: 1.5px dashed var(--lrn-line); border-radius: 14px; padding: 14px 18px; margin: 8px 0; }
:is(.axvl-product, .is-style-axvl-product) > .axvl-label { color: var(--lrn-muted); font-size: 10.5px; margin: 0; }
:is(.axvl-product, .is-style-axvl-product) p { margin: 6px 0 0; font-size: 13.5px; color: var(--lrn-muted); }

.axvl-review { background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 16px; padding: 16px 20px 18px; margin: 26px 0; }
.axvl-review__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.axvl-review__head b { font-size: 14px; }
.axvl-review__grid { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 18px; }
@media (max-width: 700px) { .axvl-review__grid { grid-template-columns: 1fr; } }
.axvl-review__doc { font-size: var(--lrn-fs-body); line-height: 1.9; margin: 0; max-width: none; }
.axvl-ed { position: relative; }
.axvl-ed del, .axvl-ed ins { text-decoration: none; border-radius: 4px; padding: 0 2px; transition: color calc(300ms * var(--lrn-motion-k)) linear, background-color calc(300ms * var(--lrn-motion-k)) linear; }
.axvl-review[data-mode="draft"] .axvl-ed ins { display: none; }
.axvl-review[data-mode="changes"] .axvl-ed del { text-decoration: line-through; text-decoration-color: var(--lrn-fail); text-decoration-thickness: 2px; color: var(--lrn-fail); background: var(--lrn-mark); }
.axvl-review[data-mode="changes"] .axvl-ed ins { color: var(--lrn-accent); background: color-mix(in srgb, var(--lrn-accent) 14%, transparent); text-decoration: underline; text-decoration-color: var(--lrn-accent); }
.axvl-review[data-mode="changes"] .axvl-ed::after { content: attr(data-n); position: absolute; top: -1.3em; left: -4px; font: 700 10px/1 var(--lrn-font-ui); background: var(--lrn-fail); color: var(--lrn-bg); border-radius: 999px; padding: 3px 6px; }
.axvl-review[data-mode="reviewed"] .axvl-ed del { display: none; }
.axvl-review__notes { display: grid; gap: 10px; align-content: start; font-size: 12.5px; color: var(--lrn-muted); }
.axvl-note { border-left: 3px solid var(--lrn-fail); padding: 2px 0 2px 10px; opacity: 0; transform: translateX(8px); transition: opacity calc(300ms * var(--lrn-motion-k)) linear, transform calc(300ms * var(--lrn-motion-k)) var(--lrn-ease-standard); }
.axvl-review[data-mode="changes"] .axvl-note { opacity: 1; transform: none; transition-delay: calc(var(--i) * 120ms * var(--lrn-motion-k)); }
.axvl-note b { display: block; color: var(--lrn-text); font-size: 12px; margin-bottom: 2px; }
.axvl-review__foot { margin-top: 10px; font-size: 12px; color: var(--lrn-muted); }
html:not(.js) .axvl-review .axvl-ed ins { display: none; }

/* slides */
.axvl-deckwrap[hidden] { display: none; }
.axvl-deckwrap { margin: 26px 0 0; }
.axvl-deck { position: relative; aspect-ratio: 16 / 9; background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 18px; overflow: hidden; }
.axvl-slide { position: absolute; inset: 0; padding: clamp(20px, 4vw, 52px); display: flex; flex-direction: column; justify-content: center; gap: 12px; opacity: 0; visibility: hidden; overflow: auto; transition: opacity calc(280ms * var(--lrn-motion-k)) linear; }
.axvl-slide.is-on { opacity: 1; visibility: visible; }
.axvl-slide h2 { font-size: clamp(22px, 3.4vw, 46px); letter-spacing: -.045em; margin: 0; line-height: 1.08; }
.axvl-slide p { font-size: clamp(14px, 1.7vw, 22px); line-height: 1.5; color: var(--lrn-muted); margin: 0; max-width: 44ch; }
.axvl-slide pre, .axvl-slide .wp-block-code { margin: 0; font-size: clamp(11px, 1.35vw, 17px); max-width: 100%; }
.axvl-slide .wp-block-button, .axvl-slide .axvl-ex, .axvl-slide figure { display: none; }
.axvl-dctl { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.axvl-dctl__pg { display: flex; gap: 6px; align-items: center; }
.axvl-dctl__pg i { width: 8px; height: 8px; border-radius: 50%; background: var(--lrn-line); display: block; }
.axvl-dctl__pg i.is-on { background: var(--lrn-accent); width: 22px; border-radius: 999px; }
.axvl-dctl__cnt { font-size: 13px; color: var(--lrn-muted); }
.axvl-dbtn { background: none; border: 1px solid var(--lrn-line); border-radius: 999px; padding: 7px 16px; font-weight: 700; font-size: 13px; cursor: pointer; }
.axvl-dbtn:hover { background: var(--lrn-hover); }
.axvl-dbtn:disabled { opacity: .35; cursor: default; }
.axvl-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 44px; }
.axvl-pager a { display: block; text-decoration: none; color: inherit; border: 1px solid var(--lrn-line); border-radius: 14px; padding: 14px 18px; transition: border-color var(--lrn-dur-fast) linear, transform var(--lrn-dur-fast) var(--lrn-ease-standard); }
.axvl-pager a:hover { border-color: var(--lrn-accent); transform: translateY(calc(-1 * var(--lrn-move-sm))); }
.axvl-pager small { display: block; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--lrn-muted); margin-bottom: 4px; font-weight: 700; }
.axvl-pager .is-next { text-align: right; }
@media (max-width: 640px) { .axvl-pager { grid-template-columns: 1fr; } .axvl-pager .is-next { text-align: left; } }
.axvl-disc { margin-top: 36px; background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 16px; padding: 20px 22px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.axvl-disc b { font-size: 17px; display: block; margin-bottom: 2px; } .axvl-disc span { color: var(--lrn-muted); font-size: 13.5px; }

/* ---------- 8. articles and generic pages ---------- */
.axvl-article { max-width: 760px; margin-inline: auto; }
.axvl-article .wp-block-post-title { letter-spacing: -.04em; line-height: 1.08; }
.axvl-meta { color: var(--lrn-muted); font-size: var(--lrn-fs-small); }
.axvl-meta a { color: inherit; }
.axvl-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.axvl-cards .wp-block-post { background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 16px; padding: 18px 20px; }
.axvl-cards .wp-block-post-title { font-size: 19px; letter-spacing: -.02em; line-height: 1.25; margin: 0 0 8px; }
.axvl-cards .wp-block-post-title a { text-decoration: none; color: inherit; }
.axvl-cards .wp-block-post-title a:hover { color: var(--lrn-accent); }
.wp-block-search__input { background: var(--lrn-panel); border: 1px solid var(--lrn-line); border-radius: 999px; padding: 8px 16px; color: inherit; }
.wp-block-search__button { background: var(--lrn-accent); color: var(--lrn-on-accent); border: 0; border-radius: 999px; padding: 8px 18px; font-weight: 700; }
.wp-block-separator { border-color: var(--lrn-line-soft); opacity: 1; }
.wp-block-quote { border-left: 3px solid var(--lrn-accent); padding-left: 18px; color: var(--lrn-muted); }
.wp-block-table td, .wp-block-table th { border-color: var(--lrn-line); }
.wp-block-query-pagination a { text-decoration: none; }

/* ---------- 10. glue for templates, parts and patterns ---------- */
/* Header and footer run edge to edge; their inner group is capped at the wide size. */
.axvl-header, .axvl-footer {
  /* Root template parts already span the site wrapper; negative margins overflow it. */
  margin-inline: 0;
  padding-inline: var(--wp--style--root--padding-left, 0px) var(--wp--style--root--padding-right, 0px);
}
.axvl-header { padding-block: 14px; }
.axvl-footer { padding-block: 28px; margin-top: var(--wp--preset--spacing--60, 64px); }
.axvl-header > .wp-block-group, .axvl-footer > .wp-block-group { max-width: var(--wp--style--global--wide-size, 1320px); margin-inline: auto; gap: 14px 22px; }
.axvl-footer > .wp-block-group p { margin: 0; }
html:not(.js) .axvl-display { display: none; }

.axvl-main { padding-block: 0; }
.axvl-main > .wp-block-post-title { margin-top: var(--wp--preset--spacing--50, 36px); }
.axvl-sec { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(24px, 4.4vw, 72px); align-items: center; padding-block: clamp(40px, 6vw, 88px); }
@media (max-width: 900px) { .axvl-sec { grid-template-columns: minmax(0, 1fr); } }
.axvl-sec > * { min-width: 0; margin-block: 0; }
.axvl-sec .axvl-display-title, .axvl-sec .axvl-section-title { margin: 12px 0 16px; }
.axvl-sec .axvl-lead { margin: 0 0 22px; }
.axvl-sec .axvl-hint { margin: 14px 0 0; }
.axvl-sec .wp-block-buttons { margin: 0; }
#why { border-top: 1px solid var(--lrn-line-soft); }
.axvl-band { padding: clamp(40px, 5vw, 72px) 20px; margin-inline: calc(-1 * var(--wp--style--root--padding-left, 0px)) calc(-1 * var(--wp--style--root--padding-right, 0px)); }
.axvl-band h2 { margin: 0 0 10px; font-size: clamp(24px, 3vw, 40px); letter-spacing: -.04em; }
.axvl-band p { margin: 0 0 20px; }
.axvl-intro { padding-block: clamp(28px, 4vw, 56px) 8px; }
.axvl-intro > * { margin-block: 0; }
.axvl-intro .axvl-display-title { margin: 12px 0 16px; }
.axvl-intro .axvl-lead { max-width: 60ch; }
.wp-block-query-title.axvl-display-title { margin: 12px 0 16px; }

/* lesson page columns */
.axvl-leftcol { position: sticky; top: 20px; }
.axvl-leftcol > *, .axvl-rail > * { margin-block: 0; }
@media (max-width: 1180px) { .axvl-leftcol { display: none; } }
.axvl-center > * { margin-block: 0; }
.axvl-center > * + * { margin-block-start: 16px; }
.axvl-center .wp-block-post-title { margin-top: 12px; }
.axvl-center .axvl-fmt { margin-top: 24px; }
.axvl-railcards { display: grid; gap: 14px; }
.axvl-term { margin: 12px 0 0; color: var(--lrn-muted); font-size: 13px; letter-spacing: .04em; }
.axvl-wrong > .axvl-term + p, .is-style-axvl-wrong > .axvl-term + p { margin: 2px 0 0; }
.axvl-fit > .wp-block-group > p { margin: 0; }
.axvl-prose > .axvl-wrong, .axvl-prose > .is-style-axvl-wrong, .axvl-prose > .axvl-fit { max-width: none; }
.axvl-prose .wp-block-code.is-slide { margin: 0; }
.axvl-videowrap[hidden] { display: none; }
.axvl-videowrap { margin: 26px 0 0; }
.axvl-videowrap iframe { width: 100%; aspect-ratio: 16 / 9; height: auto; border: 0; border-radius: 18px; }
.axvl-lib__plain { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.axvl-lib__plain li { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 10px 14px; border: 1px solid var(--lrn-line); border-radius: 12px; background: var(--lrn-panel); }
.axvl-lib__plain a { font-weight: 600; text-decoration: none; }
.axvl-runs { display: inline-flex; gap: 3px; }

/* Lesson code: separate toolbar keeps the copy action clear of long lines. */
.axvl-copywrap { margin: 16px 0 24px; border: 1px solid var(--lrn-line); border-radius: 14px; overflow: hidden; background: var(--lrn-panel); }
.axvl-codebar { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; padding: 6px 12px 6px 18px; border-bottom: 1px solid var(--lrn-line); background: var(--lrn-raised); }
.axvl-codebar__language { color: var(--lrn-text); font: 600 12px/1.5 var(--lrn-font-ui); letter-spacing: .04em; }
.axvl-copywrap .wp-block-code { margin: 0; border: 0; border-radius: 0; padding: 20px; overflow-x: auto; tab-size: 2; }
.axvl-copywrap code { white-space: pre; }
.axvl-copy { position: static; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 76px; max-width: 70%; padding: 8px 14px; border: 1px solid var(--lrn-accent); border-radius: 8px; background: var(--lrn-panel); color: var(--lrn-text); font: 600 12px/1.4 var(--lrn-font-ui); cursor: pointer; }
.axvl-copy:hover { background: var(--lrn-hover); }
.axvl-copy:focus-visible { outline: 2px solid var(--lrn-accent); outline-offset: 2px; }
.axvl-copy-status { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.axvl-syntax--keyword { color: var(--lrn-accent); font-weight: 700; }
.axvl-syntax--string { color: var(--lrn-fail); }
.axvl-syntax--number { color: var(--lrn-accent); }
.axvl-syntax--comment { color: var(--lrn-muted); font-style: italic; }
@media (forced-colors: active) { .axvl-copy { border-color: ButtonText; } }
@media print { .axvl-codebar { display: none; } .axvl-copywrap { break-inside: avoid; } .axvl-copywrap code span { color: inherit; } }

@media print { .axvl-header, .axvl-footer, .axvl-progress, .axvl-copy, .axvl-rail { display: none; } }

/* Lesson reading header: scoped to lessons, without changing other page headers. */
body.single-lesson .axvl-header {
  position: sticky;
  top: var(--axvl-admin-offset, 0px);
  z-index: 100;
  background: var(--lrn-bg);
  transition: padding-block var(--lrn-dur-base) var(--lrn-ease-standard),
    background-color var(--lrn-dur-base) linear,
    border-color var(--lrn-dur-base) linear,
    box-shadow var(--lrn-dur-base) var(--lrn-ease-standard);
}
body.single-lesson.admin-bar .axvl-header {
  top: var(--axvl-admin-offset, var(--wp-admin--admin-bar--height, 32px));
}
body.single-lesson .axvl-header.is-reading {
  padding-block: 10px;
  background: var(--lrn-panel);
  border-bottom-color: var(--lrn-line);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--lrn-bg) 20%, transparent);
}
html.axvl-reading {
  scroll-padding-top: calc(var(--axvl-admin-offset, 0px) + var(--axvl-lesson-header-height, 64px) + 24px);
}
body.single-lesson .axvl-progress {
  position: absolute;
  top: auto;
  bottom: 0;
  z-index: 101;
}
body.single-lesson :is(.axvl-leftcol, .axvl-rail) {
  top: calc(var(--axvl-admin-offset, 0px) + var(--axvl-lesson-header-height, 64px) + 24px);
}

/* Single-lesson reading rhythm; retain font, body measure and start alignment. */
body.single-lesson .axvl-center > .wp-block-post-title {
  font-size: clamp(30px, 3.2vw, 46px);
  line-height: 1.22;
  letter-spacing: -.025em;
  text-wrap: balance;
}
body.single-lesson .axvl-prose { text-align: start; }
body.single-lesson .axvl-prose h2 {
  font-size: clamp(26px, 2.25vw, 32px);
  line-height: 1.3;
  letter-spacing: -.02em;
  margin-block: 44px 16px;
  text-wrap: balance;
}
body.single-lesson .axvl-prose h3 {
  font-size: clamp(21px, 1.6vw, 23px);
  line-height: 1.4;
  letter-spacing: -.01em;
  margin-block: 28px 10px;
  font-weight: 600;
}
body.single-lesson .axvl-prose :is(ul, ol) { padding-inline-start: 1.4em; }
body.single-lesson .axvl-prose li + li { margin-block-start: .45em; }
/* Existing semantic anchors opt these sections in; no post-content rewrite. */
body.single-lesson .axvl-prose :is(#before-you-start, #known-limits) + :is(ul, ol) {
  padding-block: 16px;
  padding-inline: 2.4em 18px;
  border-inline-start: 2px solid var(--lrn-line);
  border-radius: 0 10px 10px 0;
  background: var(--lrn-panel);
}
body.single-lesson .axvl-prose #what-went-wrong {
  padding-block-start: 24px;
  border-block-start: 1px solid var(--lrn-line);
}
@media (max-width: 600px) {
  body.single-lesson .axvl-prose h2 { margin-block-start: 36px; }
}

/* Official Axvoid identity with a clear Learn product suffix. */
.axvl-header .wp-block-site-title::before { display: none; }
.axvl-header .axvl-brand a { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; }
.axvl-brand img { width: 118px; height: 22px; object-fit: contain; }
.axvl-brand__divider { color: var(--lrn-muted); font-weight: 400; }
.axvl-brand .axvl-brand__day { display: none; }
html[data-mode="day"] .axvl-brand .axvl-brand__day { display: block; }
html[data-mode="day"] .axvl-brand .axvl-brand__night { display: none; }
@media (prefers-color-scheme: light) {
 html:not([data-mode="night"]) .axvl-brand .axvl-brand__day { display: block; }
 html:not([data-mode="night"]) .axvl-brand .axvl-brand__night { display: none; }
}
@media (max-width: 600px) {
 .axvl-brand img { width: 94px; height: 18px; }
 .axvl-header .axvl-brand a { gap: 8px; }
}

.axvl-backtop { position: fixed; inset-inline-end: 24px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 90; display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; padding: 0; border: 1px solid var(--lrn-line); border-radius: 50%; background: var(--lrn-panel); color: var(--lrn-text); box-shadow: 0 4px 16px color-mix(in srgb, var(--lrn-bg) 24%, transparent); cursor: pointer; font: 400 24px/1 var(--lrn-font-ui); transition: border-color var(--lrn-dur-base), background-color var(--lrn-dur-base); }
.axvl-backtop[hidden] { display: none; }
.axvl-backtop:hover { border-color: var(--lrn-accent); background: var(--lrn-raised); }
.axvl-backtop:focus-visible { outline: 2px solid var(--lrn-accent); outline-offset: 3px; }
@media (max-width: 600px) {
 .axvl-header > .wp-block-group { gap: 10px; flex-wrap: nowrap; }
 .axvl-header > .wp-block-group > .wp-block-buttons { display: none; }
 .axvl-backtop { inset-inline-end: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
}
@media (max-width: 360px) {
 .axvl-brand img { width: 76px; }
 .axvl-header .axvl-brand a { gap: 6px; }
 .axvl-header [data-axvl-display] > button { padding-inline: 8px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) { .axvl-backtop { transition: none; } }
html[data-motion="reduced"] .axvl-backtop { transition: none; }
@media print { .axvl-backtop { display: none; } }

/* Homepage: discovery before a second demonstration, using existing design tokens. */
body.home .axvl-home-nav { display:flex; gap:24px; align-items:center; margin-inline-start:auto; font-size:13px; font-weight:600; }
.axvl-home-nav a,.axvl-home-footerlinks a { color:var(--lrn-muted); text-decoration:none; }
.axvl-home-nav a:hover,.axvl-home-footerlinks a:hover { color:var(--lrn-text); }
.axvl-home #hero { padding-block:64px; gap:44px; grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); }
.axvl-home #hero h1 { font-size:clamp(36px,4.1vw,60px); line-height:1.12; letter-spacing:-.035em; max-width:11ch; text-wrap:balance; }
.axvl-home #hero .axvl-lead { max-width:44ch; font-size:18px; line-height:1.65; }
.axvl-home #hero .axvl-hint { max-width:44ch; line-height:1.6; }
.axvl-home-section { padding-block:64px; border-block-start:1px solid var(--lrn-line); scroll-margin-top:32px; }
.axvl-home-section h2 { font-size:clamp(28px,3vw,40px); line-height:1.25; letter-spacing:-.025em; margin:10px 0 16px; max-width:27ch; text-wrap:balance; }
.axvl-home-intro { color:var(--lrn-muted); max-width:68ch; margin:0 0 28px; line-height:1.7; }
.axvl-section-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px; }
.axvl-section-card { display:flex; flex-direction:column; gap:12px; min-width:0; padding:24px; border:1px solid var(--lrn-line); border-radius:16px; background:var(--lrn-panel); color:var(--lrn-text); text-decoration:none; }
.axvl-section-card.is-featured { grid-column:span 2; border-color:var(--lrn-accent); }
.axvl-section-card .axvl-card__k { display:flex; justify-content:space-between; margin:0; }
.axvl-section-card h3 { margin:0; font-size:20px; line-height:1.35; letter-spacing:-.015em; }
.axvl-section-card p { margin:0 0 8px; color:var(--lrn-muted); font-size:14px; line-height:1.65; }
.axvl-section-count { margin-block-start:auto; font-size:12px; color:var(--lrn-muted); }
.axvl-section-card:hover { border-color:var(--lrn-accent); background:var(--lrn-raised); }
.axvl-section-card:focus-visible { outline:2px solid var(--lrn-accent); outline-offset:4px; }
.axvl-home-sectionhead { display:flex; justify-content:space-between; gap:24px; align-items:end; margin-block-end:24px; }
.axvl-textlink { color:var(--lrn-accent); font-size:14px; font-weight:600; text-underline-offset:4px; }
.axvl-home-lessons { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:20px; }
.axvl-home-lesson { display:flex; flex-direction:column; padding:28px; border:1px solid var(--lrn-line); border-radius:16px; background:var(--lrn-panel); }
.axvl-home-lessonmeta { display:flex; align-items:center; flex-wrap:wrap; gap:12px; font-size:12px; color:var(--lrn-muted); }
.axvl-home-lesson h3 { font-size:24px; line-height:1.4; letter-spacing:-.02em; margin:20px 0 12px; }
.axvl-home-lesson h3 a { text-decoration:none; color:var(--lrn-text); }
.axvl-home-lesson p { font-size:15px; line-height:1.75; color:var(--lrn-muted); margin:0 0 18px; }
.axvl-home-lesson .axvl-home-evidence { font-size:12px; padding-block-start:16px; border-block-start:1px solid var(--lrn-line); }
.axvl-home-lesson > .axvl-textlink { margin-block-start:auto; align-self:start; }
.axvl-method-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:32px; margin-block-start:32px; }
.axvl-method-grid span { color:var(--lrn-accent); font-size:13px; }
.axvl-method-grid h3 { font-size:20px; line-height:1.4; margin:12px 0; letter-spacing:-.015em; }
.axvl-method-grid p { color:var(--lrn-muted); font-size:15px; line-height:1.75; margin:0; }
.axvl-home #why { padding-block:44px; gap:40px; border-block-start:0; background:var(--lrn-panel); border-radius:18px; padding-inline:28px; }
.axvl-home #why .axvl-section-title { font-size:clamp(26px,2.7vw,36px); line-height:1.25; letter-spacing:-.025em; }
.axvl-home #why .axvl-lead { font-size:16px; line-height:1.7; }
.axvl-home .axvl-band { padding-block:64px; }
.axvl-home .axvl-band h2 { font-size:clamp(28px,3vw,40px); line-height:1.3; text-wrap:balance; }
.axvl-home-footerlinks { display:flex; justify-content:center; flex-wrap:wrap; gap:14px 24px; margin-block-start:28px; font-size:13px; }
@media(max-width:1000px) { .axvl-section-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } body.home .axvl-home-nav { gap:14px; } }
@media(max-width:760px) {
 body.home .axvl-home-nav { display:none; }
 .axvl-home #hero { grid-template-columns:minmax(0,1fr); padding-block:36px; gap:28px; }
 .axvl-home #hero h1 { max-width:14ch; }
 .axvl-home-section { padding-block:40px; }
 .axvl-home-sectionhead { align-items:start; flex-direction:column; gap:4px; }
 .axvl-home-lessons,.axvl-method-grid { grid-template-columns:minmax(0,1fr); }
 .axvl-home #why { padding:24px 18px; grid-template-columns:minmax(0,1fr); gap:20px; }
 .axvl-home .axvl-band { padding-block:40px; }
 body.home .axv-la-launch { font-size:0; gap:0; width:46px; min-height:46px; padding:12px; justify-content:center; }
 body.home .axv-la-launch svg { flex:none; }
}
@media(max-width:480px) { .axvl-section-grid { grid-template-columns:minmax(0,1fr); } .axvl-section-card.is-featured { grid-column:auto; } .axvl-home-lesson { padding:22px; } }

/* Hero boundary spacing: one deliberate interval, without stacked WP block gaps. */
body.home .wp-site-blocks > main.axvl-home { margin-block-start: 0; }
body.home .axvl-home > .axvl-home-catalog { margin-block-start: 0; }
body.home .axvl-home #hero { padding-block: 48px 32px; align-items: start; }
body.home .axvl-home #sections { padding-block-start: 40px; }
@media (max-width: 760px) {
 body.home .axvl-home #hero { padding-block: 28px 32px; }
 body.home .axvl-home #sections { padding-block-start: 32px; }
}

/* Homepage: a quiet floating navigation rail; its layout slot stays unchanged. */
body.home .axvl-header {
 position: sticky;
 top: var(--axvl-home-admin-offset, 0px);
 z-index: 100;
 isolation: isolate;
 background: var(--lrn-bg);
 transition: background-color var(--lrn-dur-base) linear, border-color var(--lrn-dur-base) linear;
}
body.home.admin-bar .axvl-header { top: var(--axvl-home-admin-offset, var(--wp-admin--admin-bar--height, 32px)); }
body.home .axvl-header > .wp-block-group {
 position: relative;
 transition: background-color var(--lrn-dur-base) linear, box-shadow var(--lrn-dur-base) var(--lrn-ease-standard), border-radius var(--lrn-dur-base) var(--lrn-ease-standard), transform var(--lrn-dur-base) var(--lrn-ease-standard);
}
body.home .axvl-header.is-floating { background: transparent; border-bottom-color: transparent; }
body.home .axvl-header.is-floating > .wp-block-group {
 background: var(--lrn-panel);
 border-radius: 12px;
 box-sizing: border-box;
 width: calc(100% - 24px);
 padding-inline: 14px;
 transform: translateY(4px);
 box-shadow: 0 0 0 1px color-mix(in srgb, var(--lrn-accent) 12%, var(--lrn-line)), 0 6px 18px color-mix(in srgb, var(--lrn-bg) 12%, transparent), inset 0 1px 0 color-mix(in srgb, var(--lrn-text) 12%, transparent);
}
@supports ((backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px))) {
 body.home .axvl-header.is-floating > .wp-block-group {
  background: color-mix(in srgb, var(--lrn-panel) 62%, transparent);
  backdrop-filter: blur(20px) saturate(145%);
  -webkit-backdrop-filter: blur(20px) saturate(145%);
  background-image: linear-gradient(125deg, color-mix(in srgb, var(--lrn-text) 5%, transparent), transparent 42%, color-mix(in srgb, var(--lrn-accent) 3%, transparent));
 }
}
body.home .axvl-header::after {
 content: ''; position: absolute; inset-inline: 8%; bottom: 0; height: 1px;
 pointer-events: none; opacity: 0;
 background: linear-gradient(90deg, transparent, var(--lrn-accent), transparent);
 animation: axvl-home-arrival calc(900ms * var(--lrn-motion-k)) var(--lrn-ease-enter) 1;
}
@keyframes axvl-home-arrival {
 0% { opacity: 0; transform: scaleX(.15); }
 40% { opacity: .65; }
 100% { opacity: 0; transform: scaleX(1); }
}
html.axvl-home-sticky { scroll-padding-top: calc(var(--axvl-home-admin-offset, 0px) + var(--axvl-home-header-height, 64px) + 24px); }
html[data-motion="reduced"] body.home .axvl-header::after { animation: none; }
@media (prefers-reduced-motion: reduce) { body.home .axvl-header::after { animation: none; } }
@media print { body.home .axvl-header { position: static; } }