.learning-main { padding: 32px 0 80px; min-height: 65vh; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 12px; font-size: 14px; color: var(--muted); margin-bottom: 50px; }
.breadcrumbs a { text-underline-offset: 4px; }
.learning-eyebrow { color: var(--orange); font-weight: 600; font-size: 16px; margin: 0 0 17px; }
.learning-title { font: 400 clamp(46px, 5.3vw, 80px)/1.04 var(--serif); letter-spacing: -1.8px; max-width: 900px; margin: 0 0 22px; }
.learning-lead { font-size: 22px; line-height: 1.6; max-width: 750px; margin: 0 0 42px; }
.learning-main p, .learning-main li { line-height: 1.65; }
.learning-main a { text-underline-offset: 4px; }
.learning-main .button-primary { text-decoration: none; font-size: 17px; }
.small-label { font-size: 13px; color: var(--muted); margin: 0 0 8px; }
/* Shared by subject outlines as well as the course catalogue's former list. */
.catalog-list { border-top: 1px solid var(--line); margin-top: 48px; }
.catalog-entry { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding: 30px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.catalog-entry h2 { font: 400 44px/1.1 var(--serif); margin: 6px 0 12px; }
.catalog-entry p { max-width: 670px; margin-bottom: 0; }
a.catalog-entry:hover h2 { color: var(--orange); }
.course-catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 48px; }
.course-catalog-card { display: flex; flex-direction: column; min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 7px; background: #f5f2e8; color: inherit; text-decoration: none; transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease; }
.course-catalog-art { position: relative; min-height: 168px; aspect-ratio: 2.12; overflow: hidden; background: #e9ecdf; isolation: isolate; }
.course-catalog-art > img { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; object-fit: cover; transition: transform 180ms ease; }
.course-catalog-art h2 { max-width: 57%; margin: 0; padding: 24px 22px; font: 400 clamp(24px, 2.25vw, 34px)/1.06 var(--serif); letter-spacing: -.45px; overflow-wrap: anywhere; }
.course-catalog-card-long .course-catalog-art h2 { max-width: 62%; font-size: clamp(21px, 1.8vw, 28px); }
.course-catalog-body { display: flex; flex: 1; flex-direction: column; padding: 20px 22px 18px; border-top: 1px solid rgba(18, 61, 51, .14); }
.course-catalog-description { margin: 0 0 22px; font-size: 15px; line-height: 1.55 !important; }
.course-catalog-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); }
.course-catalog-footer .small-label { margin: 0; line-height: 1.4; }
.course-catalog-action { display: inline-flex; flex: none; align-items: center; gap: 7px; color: var(--ink); font-size: 14px; font-weight: 500; }
.course-catalog-action img { flex: none; transition: transform 180ms ease; }
.course-catalog-card:hover { border-color: var(--ink); transform: translateY(-3px); box-shadow: 0 10px 24px rgba(18, 61, 51, .08); }
.course-catalog-card:hover .course-catalog-art > img { transform: scale(1.025); }
.course-catalog-card:hover .course-catalog-art h2 { color: var(--orange); }
.course-catalog-card:hover .course-catalog-action img { transform: translateX(3px); }
.course-catalog-card:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
@media (max-width: 980px) {
  .course-catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .course-catalog-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; margin-top: 38px; }
  .course-catalog-art { min-height: 150px; }
  .course-catalog-art h2 { padding: 22px 20px; font-size: clamp(26px, 8vw, 34px); }
  .course-catalog-card-long .course-catalog-art h2 { font-size: clamp(23px, 7vw, 29px); }
  .course-catalog-body { padding: 18px 20px 17px; }
}
@media (prefers-reduced-motion: reduce) {
  .course-catalog-card, .course-catalog-art > img, .course-catalog-action img { transition: none; }
}
.course-outline { list-style: none; padding: 0; }
.outline-entry { display: grid; grid-template-columns: 45px minmax(0, 1fr) auto; align-items: start; gap: 26px; }
.outline-number { font: 400 32px/1.2 var(--serif); color: var(--muted); padding-top: 3px; }
.outline-entry .entry-action { align-self: center; }
.outline-entry h2 { font-size: 36px; }
.outline-entry.is-available .outline-number, .outline-entry.is-available .entry-action { color: var(--orange); }
.outline-entry.is-planned .entry-action { font-size: 14px; color: var(--muted); font-weight: 400; }
@media (max-width: 620px) {
  .course-outline .outline-entry { grid-template-columns: 30px minmax(0, 1fr); gap: 8px 14px; }
  .course-outline .outline-entry h2 { font-size: 30px; }
  .outline-entry .entry-action { grid-column: 2; }
  .outline-number { font-size: 26px; }
}
.entry-action { flex: none; font-weight: 500; }
.unit-list-content { display: block; min-width: 0; color: inherit; text-decoration: none; }
.unit-list-content:hover h2 { color: var(--orange); }
.unit-list-progress { align-self: center; width: 200px; flex: 0 0 200px; }
.unit-list-progress .unit-list-count { margin: 0 0 10px; font-size: 14px; line-height: 1.5; color: var(--muted); }
.unit-list-bar { display: block; appearance: none; width: 100%; height: 5px; margin: 0; padding: 0; border: 0; border-radius: 5px; overflow: hidden; background: var(--line); }
.unit-list-bar::-webkit-progress-bar { background: var(--line); }
.unit-list-bar::-webkit-progress-value { background: var(--ink); border-radius: 5px; }
.unit-list-bar::-moz-progress-bar { background: var(--ink); border-radius: 5px; }
.unit-list-progress .unit-list-status { display: flex; align-items: center; gap: 6px; margin: 10px 0 0; color: var(--ink); font-size: 13px; line-height: 1.5; }
.unit-list-status img { flex-shrink: 0; }
.lesson-draft-status { display: block; margin-top: 4px; color: #765044; font: 650 11px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .04em; }
.unit-list-action { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; margin-top: 4px; color: var(--orange); font-size: 15px; text-decoration: none; }
.unit-list-action:hover { text-decoration: underline; }
.outline-entry .unit-list-progress[data-progress-state="finished"] .entry-action { color: var(--ink); }
@media (max-width: 760px) {
  .course-outline .outline-entry.has-progress { grid-template-columns: 30px minmax(0, 1fr); gap: 8px 14px; }
  .has-progress .unit-list-progress { grid-column: 2; width: min(100%, 260px); margin-top: 12px; flex-basis: auto; }
}
.subject-breadcrumbs { margin-bottom: 28px; }
.subject-layout { display: grid; grid-template-columns: minmax(0, 1fr) var(--progress-sidebar-width); grid-template-rows: auto 1fr; column-gap: var(--progress-sidebar-gap); align-items: start; }
.subject-header { grid-column: 1; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.subject-header .learning-title { font-size: clamp(54px, 4.7vw, 72px); }
.subject-header .learning-lead { max-width: 720px; margin-bottom: 0; font-size: 18px; line-height: 1.55; }
.subject-sidebar { grid-column: 2; grid-row: 1 / span 2; position: sticky; top: 24px; padding-left: var(--progress-sidebar-padding); border-left: 1px solid var(--line); }
.subject-sidebar h2 { margin: 0 0 18px; font: 400 30px/1.15 var(--serif); }
.subject-about, .subject-route { margin-top: 34px; padding-top: 30px; border-top: 1px solid var(--line); }
.subject-about p, .subject-route p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; }
.subject-chapters { grid-column: 1; margin-top: 26px; }
.subject-chapter + .subject-chapter { margin-top: 32px; }
.subject-chapter-header { display: flex; align-items: end; justify-content: space-between; gap: 28px; padding: 0 0 14px; border-bottom: 1px solid var(--line); }
.subject-chapter-header .small-label { margin-bottom: 6px; letter-spacing: .06em; text-transform: uppercase; }
.subject-chapter-header h2 { max-width: 720px; margin: 0; font: 400 34px/1.12 var(--serif); }
.subject-chapter-header > p { flex: none; margin: 0 0 4px; color: var(--muted); font-size: 13px; }
.subject-outline { margin: 0; }
.subject-outline .catalog-entry { min-height: 128px; padding: 20px 0; }
.subject-outline .outline-entry { grid-template-columns: 42px minmax(0, 1fr) 180px; gap: 20px; }
.subject-outline .outline-number { font-size: 28px; }
.subject-outline h3 { margin: 0 0 8px; font: 400 28px/1.12 var(--serif); transition: color 160ms; }
.subject-draft-badge { display: inline-flex; vertical-align: middle; margin-left: 8px; padding: 4px 8px; border-radius: 999px; background: #ebe2d8; color: #765044; font: 650 11px/1.2 var(--sans); }
.subject-outline .outline-content > p { margin: 0; font-size: 14px; line-height: 1.55; }
.subject-outline a:hover h3 { color: var(--orange); }
.subject-outline .unit-list-progress { width: 180px; flex-basis: 180px; }
.subject-outline .unit-list-progress .unit-list-count { font-size: 12px; }
.subject-outline .unit-list-action { min-height: 36px; font-size: 13px; }
.subject-outline .entry-action { font-size: 13px; }
@media (max-width: 1050px) {
  .subject-layout { column-gap: var(--progress-sidebar-gap); }
  .subject-outline .outline-entry { grid-template-columns: 36px minmax(0, 1fr) 165px; gap: 16px; }
  .subject-outline .unit-list-progress { width: 165px; flex-basis: 165px; }
}
@media (max-width: 820px) {
  .subject-layout { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto; }
  .subject-header { grid-column: 1; grid-row: 1; }
  .subject-sidebar { grid-column: 1; grid-row: 2; position: static; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(200px, .75fr); gap: 28px; margin-top: 26px; padding: 24px 0; border: 0; border-bottom: 1px solid var(--line); }
  .subject-about { margin: 0; padding: 0 0 0 28px; border: 0; border-left: 1px solid var(--line); }
  .subject-route { display: none; }
  .subject-chapters { grid-column: 1; grid-row: 3; }
}
@media (max-width: 620px) {
  .subject-breadcrumbs { margin-bottom: 28px; }
  .subject-header { padding-bottom: 24px; }
  .subject-header .learning-title { font-size: 46px; }
  .subject-header .learning-lead { font-size: 17px; }
  .subject-sidebar { display: block; }
  .subject-about { margin-top: 28px; padding: 26px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .subject-chapter + .subject-chapter { margin-top: 28px; }
  .subject-chapter-header { display: block; }
  .subject-chapter-header h2 { font-size: 30px; }
  .subject-chapter-header > p { margin-top: 7px; }
  .subject-outline .outline-entry, .course-outline .subject-outline .outline-entry { grid-template-columns: 30px minmax(0, 1fr); gap: 8px 14px; }
  .subject-outline .outline-number { font-size: 25px; }
  .subject-outline h3 { font-size: 25px; }
  .subject-outline .catalog-entry { min-height: 0; padding: 20px 0; }
  .subject-outline .unit-list-progress, .subject-outline .entry-action { grid-column: 2; width: min(100%, 260px); margin-top: 7px; }
}
.section-title { font: 400 36px/1.1 var(--serif); margin: 0 0 24px; }
.unit-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 80px; margin-top: 55px; }
.unit-overview { display: grid; grid-template-columns: minmax(0, 1fr) var(--progress-sidebar-width); gap: var(--progress-sidebar-gap); align-items: start; }
.unit-overview .learning-lead { margin-bottom: 0; }
.unit-page--sticky-objectives { display: grid; grid-template-columns: minmax(0, 1fr) var(--progress-sidebar-width); grid-template-rows: auto 1fr; column-gap: var(--progress-sidebar-gap); align-items: start; }
.unit-page--sticky-objectives > .unit-overview { display: contents; }
.unit-page--sticky-objectives .unit-intro { grid-column: 1; grid-row: 1; }
.unit-page--sticky-objectives .unit-objectives { grid-column: 2; grid-row: 1 / span 2; position: sticky; top: 24px; }
.unit-page--sticky-objectives > .unit-layout { grid-column: 1; grid-row: 2; display: block; }
.unit-progress { border-left: 1px solid var(--line); padding-left: var(--progress-sidebar-padding); }
@media (max-width: 1000px) {
  .unit-overview { gap: var(--progress-sidebar-gap); }
}
@media (max-width: 760px) {
  .unit-overview { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .unit-progress { border-left: 0; padding-left: 0; }
  .unit-overview > .unit-objectives { border-left: 0; border-top: 1px solid var(--line); padding: 25px 0 0; }
}
@media (max-width: 820px) {
  .unit-page--sticky-objectives { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto; }
  .unit-page--sticky-objectives .unit-intro { grid-column: 1; grid-row: 1; }
  .unit-page--sticky-objectives .unit-objectives { grid-column: 1; grid-row: 2; position: static; border-left: 0; border-top: 1px solid var(--line); padding: 25px 0 0; }
  .unit-page--sticky-objectives > .unit-layout { grid-column: 1; grid-row: 3; }
}
.lesson-list { list-style: none; margin: 0 0 30px; padding: 0; border-top: 1px solid var(--line); }
.lesson-list-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 20px; margin-bottom: 24px; }
.lesson-list-heading .section-title { margin-bottom: 0; }
.lesson-list-heading .lesson-list-count { margin: 0; color: var(--muted); font-size: 14px; }
.lesson-practice-count { display: block; margin-top: 4px; color: var(--muted); font-size: 14px; }
.lesson-list li { border-bottom: 1px solid var(--line); }
.lesson-list a { display: flex; gap: 22px; align-items: center; padding: 24px 0; text-decoration: none; font-size: 20px; }
.lesson-list a > :last-child { margin-left: auto; }
.lesson-list a > span[aria-hidden="true"]:last-child { color: var(--orange); }
.lesson-number { font: 32px var(--serif); color: var(--orange); }
.lesson-practice-icon { display: block; flex: 0 0 1em; width: 1em; height: 1em; background: currentColor; mask: url("../icons/pencil.97404a7e9f15.svg") center / 24px 24px no-repeat; }
.lesson-lock { display: block; flex: 0 0 22px; width: 22px; height: 22px; color: var(--orange); background: currentColor; mask: url("../icons/lock.549685f95739.svg") center / 20px 20px no-repeat; }
.practice-link { display: block; margin-top: 22px; font-size: 16px; }
.unit-objectives { border-left: 1px solid var(--line); padding-left: 40px; }
.unit-objectives h2 { font: 400 36px var(--serif); margin-top: 0; }
.unit-objectives h3 { font-size: 17px; margin-top: 32px; }
.unit-objectives ul { padding-left: 20px; }
.unit-objectives li { margin-bottom: 12px; }
.sources { margin-top: 65px; padding-top: 25px; border-top: 1px solid var(--line); color: var(--muted); max-width: 900px; font-size: 14px; }
summary { cursor: pointer; font-weight: 500; }
.sources li { margin-block: 22px; }
.sources li p { margin-block: 5px; }
.sources small { display: block; margin-top: 5px; }
.reading-layout { display: grid; grid-template-columns: minmax(0, 760px) minmax(180px, 1fr); gap: 80px; align-items: start; }
.reading-layout .learning-title { font-size: clamp(42px, 4.6vw, 66px); }
.lesson-section { margin: 46px 0; }
.lesson-section h2 { font: 400 36px/1.15 var(--serif); margin-bottom: 18px; }
.lesson-section > p { font-size: 19px; }
.lesson-content-list { margin: 20px 0 28px; padding-left: 28px; font-size: 19px; line-height: 1.65; }
.lesson-content-list li { margin: 0 0 12px; padding-left: 6px; }
.lesson-content-steps li::marker { color: var(--orange); font-weight: 700; }
.lesson-quote { margin: 24px 0; padding: 22px 25px; border: 1px solid var(--line); border-radius: 8px; background: #f7f1e4; }
.lesson-quote span { display: block; margin-bottom: 9px; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.lesson-quote p { margin: 0; font: 500 21px/1.55 var(--sans); }
.lesson-table-scroll { max-width: 100%; margin: 26px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
.lesson-table-scroll:focus-visible { outline: 2px solid var(--orange); outline-offset: 4px; }
.lesson-table { width: 100%; border-collapse: collapse; font-size: 16px; line-height: 1.45; }
.lesson-table caption { padding: 14px 16px; background: #e8ecdf; color: var(--ink); font-weight: 600; text-align: left; }
.lesson-table th,.lesson-table td { min-width: 135px; padding: 14px 16px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
.lesson-table th { background: #f3edde; font-size: 14px; }
.lesson-callout { margin: 28px 0; padding: 20px 23px; border-left: 4px solid var(--orange); background: #f3edde; }
.lesson-callout--notice { border-left-color: var(--green); background: #e8ecdf; }
.lesson-callout p { margin: 7px 0 0; font-size: 17px; }
.lesson-check { margin: 30px 0; padding: 20px 23px; border: 1px solid var(--line); border-radius: 8px; background: #fffaf0; }
.lesson-check summary { color: var(--ink); font-size: 17px; }
.lesson-check[open] summary { margin-bottom: 18px; }
.lesson-check p { font-size: 17px; }
.lesson-check p:last-child { margin-bottom: 0; padding-top: 14px; border-top: 1px solid var(--line); }
.math-figure { margin: 26px 0 10px; padding: 25px; background: #f1eddf; border-radius: 8px; }
.counter-table { border-spacing: 12px 8px; margin: auto; }
.counter-table caption { caption-side: bottom; padding: 12px 0 0; color: var(--muted); font-size: 14px; }
.counter-table td { padding: 0; }
.counter-table img { width: 34px; height: 34px; }
.lesson-section .math-equation { font: 400 36px/1.4 var(--sans); text-align: center; margin: 22px 0; letter-spacing: -.8px; }
.math-lab { background: #f1eddf; padding: 28px; border-radius: 8px; }
.lab-controls { display: flex; flex-wrap: wrap; justify-content: center; gap: 25px; margin-bottom: 22px; }
.lab-controls label { display: flex; align-items: center; gap: 12px; }
.lab-controls select { font: inherit; padding: 9px 12px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 5px; }
.takeaway { border-left: 3px solid var(--orange); padding: 8px 0 8px 25px; margin: 40px 0; }
.takeaway p { font-size: 18px; margin-bottom: 0; }
.learning-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 25px; margin-top: 35px; }
.reading-nav { border-left: 1px solid var(--line); padding-left: 25px; position: sticky; top: 30px; }
.reading-nav ol { padding-left: 22px; }
.reading-nav li { margin: 18px 0; }
.reading-nav a { text-decoration: none; }
.reading-nav ol a { display: flex; align-items: flex-start; gap: 10px; }
.reading-nav ol a > span { flex: 1; min-width: 0; }
.reading-nav-practice { list-style: none; }
.reading-nav-practice .practice-link { position: relative; margin-top: 0; }
.reading-nav-practice .reading-nav-practice-icon { position: absolute; top: 3px; left: -22px; width: 17px; height: 17px; color: var(--orange); mask-size: 17px 17px; }
.reading-nav-completed { flex: 0 0 22px; width: 22px; height: 22px; padding: 3px; box-sizing: border-box; margin-top: 2px; border-radius: 50%; background: #e7ede2; }
.reading-nav [aria-current] { color: var(--orange); text-decoration: underline; }
.practice-page { max-width: 760px; margin: auto; }
.practice-top { display: flex; justify-content: space-between; align-items: baseline; }
progress { width: 100%; height: 6px; accent-color: var(--ink); margin: 0 0 38px; border: 0; }
progress::-webkit-progress-bar { background: #e5e6d9; }
progress::-webkit-progress-value { background: var(--ink); }
.question-title { font: 400 clamp(34px, 3.6vw, 50px)/1.16 var(--serif); letter-spacing: -.7px; margin: 0 0 32px; }
.answer-form fieldset { border: 0; padding: 0; margin: 0 0 24px; }
.answer-form legend { font-size: 15px; margin-bottom: 14px; }
.answer-form input[type=number] { width: min(260px,100%); font: 30px var(--sans); padding: 15px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); color: var(--ink); }
.answer-form #id_answer > div { margin-bottom: 12px; }
.answer-form #id_answer label { display: flex; gap: 14px; align-items: center; border: 1px solid var(--line); padding: 18px; border-radius: 7px; cursor: pointer; line-height: 1.5; }
.answer-form #id_answer label:has(:checked) { background: #f1ecdf; border-color: var(--ink); }
.answer-form input[type=radio] { width: 20px; height: 20px; accent-color: var(--ink); flex: none; }
input:focus-visible, select:focus-visible, summary:focus-visible { outline: 2px solid var(--orange); outline-offset: 4px; }
.hint { padding: 22px 0; }
.hint p { color: var(--muted); }
.answer-feedback { margin-top: 20px; border: 1px solid var(--line); padding: 26px; border-radius: 8px; background: #f3edde; }
.answer-feedback.is-correct { background: #e9efe2; }
.answer-feedback h2 { font: 400 34px var(--serif); margin: 0; }
.errorlist { color: #9c3315; padding-left: 22px; }
.progress-note { color: var(--muted); font-size: 14px; margin-top: 35px; }
.review-list { max-width: 800px; padding-left: 25px; }
.review-list li { padding: 12px 0 12px 7px; }
.text-button { border: 0; padding: 10px 0; background: none; text-decoration: underline; }
.empty-example { margin-top: 45px; max-width: 620px; }
@media (max-width: 1000px) { .reading-layout { grid-template-columns: minmax(0,1fr); } .reading-nav { position: static; border: 0; border-top: 1px solid var(--line); padding: 24px 0 0; } .unit-layout { gap: 35px; } .unit-objectives { padding-left: 25px; } }
@media (max-width: 620px) { .learning-main { padding-top: 23px; } .breadcrumbs { margin-bottom: 36px; font-size: 13px; gap: 8px; } .learning-title { font-size: 46px; letter-spacing: -1px; } .learning-lead { font-size: 19px; } .unit-layout { grid-template-columns: 1fr; gap: 40px; margin-top: 35px; } .unit-objectives { border-left: 0; border-top: 1px solid var(--line); padding: 25px 0 0; } .catalog-entry { align-items: start; flex-direction: column; gap: 12px; } .catalog-entry h2 { font-size: 36px; } .lesson-list a { font-size: 18px; gap: 15px; } .lesson-section > p { font-size: 18px; } .lesson-section h2 { font-size: 31px; } .math-figure,.math-lab { padding: 14px 5px; } .counter-table { border-spacing: 8px 6px; } .counter-table img { width: 28px; height: 28px; } .lesson-section .math-equation { font-size: 27px; } .reading-layout { gap: 35px; } .answer-feedback { padding: 20px; } }

/* Countable collections: the same objects work in lessons and practice. */
.count-collections { display: flex; flex-wrap: wrap; gap: 20px; margin: 24px 0 32px; }
.count-collection { flex: 1 1 310px; min-width: 0; max-width: 100%; margin: 0; }
.count-collection figcaption { margin-bottom: 12px; font-size: 18px; font-weight: 500; }
.count-tray { display: grid; grid-template-columns: repeat(5, 44px); justify-content: start; align-content: center; gap: 12px; min-height: 128px; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #f1ecdf; }
.count-token { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 2px solid var(--green, #103e34); border-radius: 50%; background: #d3a44d; color: #103e34; font: 600 22px/1 var(--sans); }
button.count-token { cursor: pointer; touch-action: manipulation; }
.count-token[aria-pressed="true"] { background: #103e34; color: #fff9ed; }
.count-token:focus-visible { outline: 3px solid #103e34; outline-offset: 4px; }
.count-tray--scatter { min-height: 180px; padding-top: 36px; padding-bottom: 36px; row-gap: 32px; }
.count-tray--scatter > .count-token:nth-child(2n) { translate: 0 12px; }
.count-tray--scatter > .count-token:nth-child(3n) { translate: 0 -12px; }
.empty-tray { grid-column: 1 / -1; color: var(--muted); }
.count-number { display: flex; align-items: baseline; gap: 16px; margin: 12px 0 0; font-size: 22px; }
.count-number strong { font: 400 44px/1 var(--serif); }
.count-controls { grid-column: 1 / -1; margin-top: 22px; }
.count-controls p { margin: 0 0 8px; }
.count-controls[hidden] { display: none; }
@media (max-width: 620px) {
  .count-tray { gap: 7px; padding: 12px; }
  .count-tray--scatter { padding-top: 30px; padding-bottom: 30px; row-gap: 32px; }
}
@media (max-width: 359px) {
  .count-tray { grid-template-columns: repeat(4, 44px); }
}

/* One instruction and one primary action for each practice state. */
.practice-guidance { border-left: 3px solid var(--orange); padding: 4px 0 4px 18px; margin: 0 0 26px; }
.practice-guidance.is-correct { border-left-color: var(--ink); }
.practice-guidance h2 { margin: 0 0 6px; font: 600 20px/1.4 var(--sans); }
.practice-guidance p { margin: 0; }
.practice-guidance ol { margin: 8px 0 0; padding-left: 24px; }
.practice-guidance li + li { margin-top: 6px; }
.practice-guidance .button-primary { margin-top: 20px; }
.practice-guidance:focus { outline: none; }
.practice-guidance:focus-visible { outline: none; }
.practice-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 24px; }
.practice-actions .text-button { min-height: 44px; }
.practice-help-dialog ol { padding-left: 24px; line-height: 1.65; }
.practice-help-dialog li + li { margin-top: 14px; }
.practice-help-dialog h2:focus { outline: none; }
.practice-progress { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; }
.learning-diagram { margin: 24px 0; max-width: 600px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: #f8f2e5; }
.learning-diagram svg { display: block; width: 100%; height: auto; }
.learning-diagram figcaption { margin-top: 12px; font-size: 16px; }

.content-report-trigger {
  position: fixed;
  right: max(24px, env(safe-area-inset-right));
  bottom: max(24px, env(safe-area-inset-bottom));
  z-index: 30;
  display: grid;
  width: 52px;
  height: 52px;
  padding: 0;
  place-items: center;
  overflow: visible;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 8px 24px rgb(18 61 51 / .16);
  transition: border-color 160ms, background 160ms, transform 160ms;
}
.content-report-trigger:hover { border-color: var(--ink); background: #f1ecdf; transform: translateY(-2px); }
.content-report-trigger:active { transform: translateY(0); }
.content-report-trigger__icon {
  width: 24px;
  height: 24px;
  background: currentColor;
  mask: url("../icons/flag.613aa6813514.svg") center / 24px 24px no-repeat;
}
.content-report-trigger__label {
  position: absolute;
  right: calc(100% + 12px);
  width: max-content;
  max-width: 190px;
  padding: 8px 11px;
  border-radius: 5px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.25;
  opacity: 0;
  pointer-events: none;
  transform: translateX(5px);
  transition: opacity 140ms, transform 140ms;
}
.content-report-trigger:hover .content-report-trigger__label,
.content-report-trigger:focus-visible .content-report-trigger__label { opacity: 1; transform: translateX(0); }
.content-report-dialog { width: min(590px, calc(100% - 40px)); }
.content-report-dialog h2 { max-width: 520px; }
.content-report-dialog h2:focus { outline: none; }
.content-report-form { display: grid; gap: 11px; }
.content-report-form label { font-size: 16px; font-weight: 600; }
.content-report-form input,
.content-report-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 14px 16px;
  background: #fffdf8;
  color: var(--ink);
  font: 16px/1.55 var(--sans);
}
.content-report-form input { min-height: 50px; margin-bottom: 5px; }
.content-report-form textarea { min-height: 150px; resize: vertical; }
.content-report-form input:focus-visible,
.content-report-form textarea:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }
.content-report-form .button-primary { width: 100%; margin-top: 10px; }
.content-report-error { margin: 0; color: #9c3315; font-size: 15px; }
.content-report-error:focus { outline: none; }
.content-report-success .button-primary { width: 100%; margin-top: 22px; }
.content-report-success:focus { outline: none; }
@media (max-width: 620px) {
  .content-report-trigger {
    right: max(16px, env(safe-area-inset-right));
    bottom: max(16px, env(safe-area-inset-bottom));
    width: 48px;
    height: 48px;
  }
  .content-report-trigger__label { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .content-report-trigger, .content-report-trigger__label { transition: none; }
}