/* Learning extends the public site's Manrope, emerald palette and shared chrome. */
.learning-hub, .learning-article { --page-tint-strong: var(--accent-deep); }
.learning-hub [hidden], .learning-article [hidden] { display: none !important; }
.learning-mobile-filter, .learning-mobile-toc { display: none; }
.learning-hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(320px, .8fr); gap: clamp(36px, 6vw, 90px); align-items: center; padding-block: clamp(64px, 8vw, 112px) clamp(60px, 7vw, 100px); }
.learning-hero h1 { margin: 0; font-size: clamp(48px, 5.8vw, 82px); line-height: 1.04; letter-spacing: -.065em; }
.learning-hero-copy > p { max-width: 590px; margin: 26px 0 0; color: var(--muted); font-size: clamp(18px, 1.7vw, 22px); }
.learning-hero .hero-actions { margin-top: 30px; }
.learning-hero-note { display: block; margin-top: 22px; color: var(--muted); font-size: 13px; }
.learning-route { padding: clamp(22px, 3vw, 36px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); }
.learning-route-heading { display: flex; align-items: center; gap: 14px; padding-bottom: 22px; font-size: 14px; font-weight: 700; }
.learning-route > a:not(.learning-guide-link) { display: grid; grid-template-columns: 24px minmax(0, 1fr) 16px; gap: 12px; align-items: baseline; padding-block: 21px; border-top: 1px solid var(--line-strong); }
.learning-route > a > span { color: var(--accent-deep); font-size: 13px; }
.learning-route strong { font-size: 15px; line-height: 1.4; }
.learning-route p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.learning-guide-link { display: inline-block; margin-top: 14px; padding-block: 6px; color: var(--accent-deep); font-size: 13px; }
.learning-section { padding-block: 24px 72px; }
.learning-section-heading { display: grid; grid-template-columns: 1fr .55fr; gap: 40px; align-items: end; padding-top: 40px; margin-bottom: 32px; border-top: 1px solid var(--line-strong); }
.learning-section-heading h2, .learning-skill h2 { margin: 0; font-size: clamp(34px, 4vw, 56px); line-height: 1.1; letter-spacing: -.05em; }
.learning-section-heading > p { margin: 0; color: var(--muted); font-size: 17px; }
.learning-section-heading .eyebrow { margin: 0 0 16px; color: var(--accent-deep); }
.learning-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.learning-filters button { min-height: 42px; padding: 10px 17px; border: 1px solid var(--line-strong); border-radius: 8px; background: transparent; color: var(--muted-strong); font: inherit; font-size: 14px; cursor: pointer; transition: background-color 150ms, color 150ms, border-color 150ms; }
.learning-filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--surface); }
.learning-filters button:active { transform: translateY(1px); }
.learning-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; }
.learning-card { position: relative; display: flex; flex-direction: column; align-items: start; padding-block: 30px; border-top: 1px solid var(--line); }
.learning-card-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--muted); font-size: 13px; }
.learning-card-meta > span:first-child { color: var(--accent-deep); }
.learning-card h3 { margin: 16px 0 0; font-size: clamp(23px, 2.5vw, 32px); line-height: 1.25; letter-spacing: -.035em; }
.learning-card h3 a::after { position: absolute; inset: 0; content: ''; }
.learning-card h3 a:focus-visible { outline: none; }
.learning-card:has(a:focus-visible) { outline: 3px solid var(--accent-deep); outline-offset: 6px; border-radius: 6px; }
.learning-card p { max-width: 540px; margin: 15px 0 22px; color: var(--muted); font-size: 16px; }
.learning-card-bottom { display: flex; gap: 22px; align-items: center; margin-top: auto; padding-top: 3px; color: var(--muted-strong); font-size: 13px; }
.learning-card-bottom > span { color: var(--accent-deep); font-size: 20px; }
.learning-skill { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .8fr); gap: clamp(32px, 6vw, 90px); align-items: center; padding: clamp(30px, 4.5vw, 60px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--accent-faint); margin-bottom: 70px; }
.learning-skill .article-kicker { margin-bottom: 20px; }
.learning-skill p { max-width: 570px; margin: 24px 0; color: var(--muted); font-size: 18px; }
.learning-skill-example { padding: 28px 0; border-block: 1px solid var(--line-strong); }
.learning-skill-example > span { color: var(--muted); font-size: 13px; }
.learning-skill-example blockquote { margin: 22px 0 28px; font-size: clamp(22px, 2.3vw, 30px); line-height: 1.5; letter-spacing: -.025em; }
.learning-skill-example > div { display: flex; flex-wrap: wrap; gap: 10px 15px; font-size: 13px; color: var(--accent-deep); }
.learning-more { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; padding-block: 28px 100px; }
.learning-more h2 { font-size: clamp(30px, 3.1vw, 44px); line-height: 1.15; letter-spacing: -.045em; }
.learning-more p { color: var(--muted); }
.learning-breadcrumb { display: flex; flex-wrap: wrap; gap: 12px; padding-top: 30px; font-size: 13px; color: var(--muted); }
.learning-breadcrumb a { color: var(--accent-deep); }
.learning-article .article-hero { padding-block: 48px 0; }
.learning-article .article-hero-inner { gap: 50px; padding-bottom: 48px; grid-template-columns: minmax(0, 1fr) minmax(260px, .42fr); }
.learning-article .article-hero h1 { margin: 0; font-size: clamp(42px, 5.5vw, 78px); line-height: 1.07; }
.learning-article .article-body { padding-block: 55px 70px; gap: clamp(40px, 7vw, 100px); grid-template-columns: minmax(185px, .29fr) minmax(0, 1fr); }
.learning-article .article-meta { color: var(--muted); }
.learning-article .article-rail a { font-size: 14px; padding-block: 9px; }
.learning-article .article-rail a:hover { color: var(--accent-deep); }
.learning-article .learning-rail-back { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 18px; color: var(--accent-deep); }
.learning-outcome { padding: 26px 30px; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); }
.learning-outcome > span { display: block; margin-bottom: 10px; color: var(--accent-deep); font-size: 13px; }
.learning-outcome strong { display: block; font-size: 23px; line-height: 1.4; letter-spacing: -.025em; }
.learning-article-lead { font-size: 19px; line-height: 1.75; color: var(--muted-strong); margin: 30px 0 50px; }
.learning-article .article-section { padding-bottom: 45px; }
.learning-article .article-section + .article-section { padding-top: 42px; }
.learning-article .article-index { width: 38px; height: 38px; margin-bottom: 20px; }
.learning-article .article-section h2 { margin: 0; font-size: clamp(28px, 3.2vw, 40px); line-height: 1.18; letter-spacing: -.04em; }
.learning-article .article-section h3 { margin: 28px 0 15px; font-size: 21px; line-height: 1.35; letter-spacing: -.025em; }
.learning-article .article-section p, .learning-article .article-section li { font-size: 18px; line-height: 1.75; color: var(--muted-strong); }
.learning-article .article-section p { margin-top: 20px; }
.learning-article .article-section ul { padding-left: 23px; margin: 24px 0 0; }
.learning-article .article-section li + li { margin-top: 12px; }
.learning-downloads { display: grid; gap: 10px; margin-top: 28px; }
.learning-downloads a { display: flex; justify-content: space-between; gap: 20px; padding: 20px 22px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); }
.learning-downloads strong { display: block; font-size: 15px; }
.learning-downloads small { display: block; margin-top: 5px; color: var(--muted); font-size: 13px; }
.learning-downloads a > span:last-child { color: var(--accent-deep); font-size: 22px; }
.learning-article .article-section .learning-example-note { margin-top: 14px; font-size: 14px; color: var(--muted); }
.learning-prompt { padding: 22px 24px 12px; margin-top: 28px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface-2); }
.learning-prompt-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--muted-strong); }
.learning-prompt pre { white-space: pre-wrap; overflow-wrap: anywhere; font-family: inherit; font-size: 17px; line-height: 1.75; color: var(--ink); margin: 20px 0 0; }
.learning-article .article-section .learning-copy-status { min-height: 22px; margin: 12px 0 0; color: var(--accent-deep); font-size: 13px; line-height: 1.5; }
.learning-example { margin-top: 26px; padding: 25px 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--accent-faint); }
.learning-example > span { color: var(--accent-deep); font-size: 13px; }
.learning-article .article-section .learning-example h3 { margin-top: 14px; }
.learning-article .article-section .learning-example ul { margin-top: 14px; }
.learning-article .article-section .learning-example li { font-size: 16px; }
.learning-article .article-takeaway { margin-top: 0; }
.learning-article .article-takeaway strong { font-size: clamp(24px, 3vw, 36px); line-height: 1.3; }
.learning-try { padding-top: 45px; }
.learning-try h2 { font-size: 30px; letter-spacing: -.04em; }
.learning-try > p { font-size: 17px; color: var(--muted); }
.learning-next { display: block; margin-top: 40px; padding-block: 26px; border-block: 1px solid var(--line-strong); }
.learning-next > span { color: var(--muted); font-size: 13px; }
.learning-next strong { display: block; margin-top: 12px; font-size: clamp(22px, 2.5vw, 30px); line-height: 1.3; letter-spacing: -.035em; }
.learning-next strong span { color: var(--accent-deep); }
.learning-related { padding-bottom: 90px; }
.learning-related .detail-heading { align-items: end; }
.learning-related .detail-heading h2 { font-size: clamp(30px, 3.5vw, 46px); }
@media (hover: hover) {
  .learning-card:hover h3, .learning-next:hover strong, .learning-route a:hover strong { color: var(--accent-deep); }
  .learning-filters button[aria-pressed="false"]:hover, .learning-downloads a:hover { background: var(--accent-faint); border-color: var(--accent-deep); }
}
@media (max-width: 1000px) {
  .learning-hero { grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr); gap: 30px; }
  .learning-hero h1 { font-size: clamp(45px, 6vw, 60px); }
  .learning-hero .hero-actions { align-items: start; }
  .learning-skill { gap: 35px; }
  .learning-article .article-hero-inner { grid-template-columns: 1fr; gap: 26px; }
  .learning-article .article-intro p { max-width: 670px; }
  .learning-article .article-body { grid-template-columns: 180px minmax(0, 1fr); gap: 35px; }
}
@media (max-width: 760px) {
  .learning-hub .shell, .learning-article .shell { width: min(1320px, calc(100% - 36px)); }
  .learning-hero { grid-template-columns: 1fr; padding-block: 32px 36px; gap: 26px; }
  .learning-hero h1 { font-size: clamp(40px, 8.3vw, 62px); }
  .learning-hero .article-kicker { margin-bottom: 18px; }
  .learning-hero-copy > p { font-size: 17px; margin-top: 18px; }
  .learning-hero .hero-actions { margin-top: 22px; }
  .learning-hero-note { margin-top: 16px; font-size: 12px; }
  .learning-route { padding: 20px; }
  .learning-route-heading { padding-bottom: 16px; }
  .learning-route > a:not(.learning-guide-link) { padding-block: 16px; }
  .learning-guide-link { margin-top: 8px; }
  .learning-section { padding-block: 8px 30px; }
  .learning-section-heading { grid-template-columns: 1fr; gap: 12px; padding-top: 25px; margin-bottom: 20px; }
  .learning-section-heading h2, .learning-skill h2 { font-size: clamp(30px, 7.3vw, 39px); line-height: 1.14; }
  .learning-section-heading .eyebrow { margin-bottom: 10px; font-size: 12px; }
  .learning-section-heading > p { font-size: 16px; line-height: 1.6; }
  .learning-filters { display: none; }
  .learning-mobile-filter { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: center; margin-bottom: 20px; }
  .learning-mobile-filter label { font-size: 14px; color: var(--muted); }
  .learning-mobile-filter select { appearance: none; -webkit-appearance: none; width: 100%; min-width: 0; height: 46px; padding: 10px 40px 10px 14px; border: 1px solid var(--line-strong); border-radius: 8px; background-color: var(--surface); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%235e6b65' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; color: var(--ink); font: inherit; font-size: 16px; line-height: 24px; }
  .learning-grid { grid-template-columns: 1fr; gap: 0; }
  .learning-card { padding-block: 22px; }
  .learning-card-meta { font-size: 12px; gap: 12px; }
  .learning-card h3 { margin-top: 12px; font-size: 24px; line-height: 1.28; }
  .learning-card p { margin: 10px 0 16px; line-height: 1.6; }
  .learning-card-bottom { padding-top: 0; font-size: 14px; gap: 10px; }
  .learning-card-bottom > span { font-size: 18px; }
  .learning-skill { grid-template-columns: 1fr; gap: 20px; padding: 22px; margin-bottom: 28px; }
  .learning-skill h2 br { display: none; }
  .learning-skill .article-kicker { font-size: 11px; line-height: 1.6; margin-bottom: 16px; }
  .learning-skill p { font-size: 16px; margin-block: 18px; }
  .learning-skill-example { padding-block: 20px; }
  .learning-skill-example blockquote { margin-block: 16px 20px; font-size: 21px; }
  .learning-more { grid-template-columns: 1fr; gap: 16px; padding-block: 20px 45px; }
  .learning-more h2 { font-size: 30px; }
  .learning-more .resource-links a { padding-block: 20px; }
  .learning-breadcrumb { padding-top: 22px; }
  .learning-article .article-hero { padding-top: 26px; }
  .learning-article .article-hero-inner { gap: 20px; padding-bottom: 28px; }
  .learning-article .article-hero h1 { font-size: clamp(34px, 7.5vw, 50px); }
  .learning-article .article-kicker { margin-bottom: 16px; }
  .learning-article .article-intro p { font-size: 17px; }
  .learning-article .article-meta { margin-top: 18px; }
  .learning-article .article-body { display: grid; grid-template-columns: 1fr; gap: 24px; padding-top: 22px; }
  .learning-article .article-rail { display: none; }
  .learning-mobile-toc { display: block; border-bottom: 1px solid var(--line); padding-bottom: 18px; }
  .learning-mobile-toc summary { padding-block: 8px; font-size: 15px; font-weight: 700; cursor: pointer; }
  .learning-mobile-toc a { display: block; padding-block: 10px; color: var(--muted-strong); font-size: 14px; }
  .learning-article .learning-rail-back { display: none; }
  .learning-outcome { padding: 22px; }
  .learning-outcome strong { font-size: 21px; }
  .learning-article-lead { font-size: 17px; margin-block: 24px 34px; }
  .learning-prompt, .learning-example { padding-inline: 20px; }
  .learning-prompt pre { font-size: 16px; }
  .learning-article .article-section p, .learning-article .article-section li { font-size: 17px; }
  .learning-article .article-section h2 { font-size: 30px; }
  .learning-related { padding-bottom: 50px; }
}
@media (prefers-reduced-motion: reduce) { .learning-filters button { transition: none; } }