/* /learn (catalog) and /learn/<path> (lesson list). Colours match theme-green.css / theme-silicon.css;
   this file only adds layout for the hub and path pages. */

/* ---- Catalog hero ---------------------------------------------------------------------------- */
.lrn-hero { padding: 56px 0 36px; background: radial-gradient(ellipse 55% 75% at 90% 0%, rgba(19, 136, 62, 0.13), transparent 70%), var(--canvas, #fcfcfc); }
.lrn-hero h1 { margin: 14px 0 12px; font-size: clamp(2.1rem, 4.6vw, 3rem); }
.lrn-lead { max-width: 58ch; color: var(--body, #33423b); font-size: 1.05rem; line-height: 1.6; margin: 0; }
.lrn-hero-stat { margin: 18px 0 0; font-size: 14px; font-weight: 600; color: var(--green, #107a37); }

/* ---- Catalog: dark panel of grouped topic cards (the reference design) ------------------------ */
.lrn-panel { padding: 48px 0 72px; background: radial-gradient(ellipse 50% 40% at 50% 0%, rgba(19, 136, 62, 0.35), transparent 70%), #06140e; }
.lrn-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; align-items: start; }
.lrn-col { display: flex; flex-direction: column; gap: 24px; }
.lrn-group-card { padding: 22px 24px 8px; border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 20px; background: #0f2a1e; }
.lrn-group-card ul { list-style: none; margin: 18px 0 0; padding: 0; }
.lrn-group-card li { border-top: 1px solid rgba(255, 255, 255, 0.07); }
.lrn-pill { display: inline-flex; margin: 0; padding: 4px 14px; border: 1px solid rgba(91, 208, 131, 0.45); border-radius: 999px; background: rgba(63, 191, 107, 0.1); color: #5bd083; font-family: var(--si-text, inherit); font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.lrn-row { display: flex; align-items: center; gap: 14px; padding: 12px 0; color: #eef6f0; text-decoration: none; }
a.lrn-row:hover .lrn-row-title, a.lrn-row:focus-visible .lrn-row-title { color: #7fdc9e; }
a.lrn-row:focus-visible { outline: 2px solid #5bd083; outline-offset: 2px; border-radius: 10px; }
.lrn-row-icon { display: grid; place-items: center; flex: none; width: 38px; height: 38px; border: 1px solid rgba(91, 208, 131, 0.3); border-radius: 10px; background: rgba(63, 191, 107, 0.08); color: #5bd083; }
.lrn-row-title { flex: 1; min-width: 0; font-family: var(--si-head, inherit); font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.lrn-count, .lrn-tag { flex: none; padding: 3px 10px; border-radius: 999px; background: rgba(255, 255, 255, 0.07); color: #cfdcd4; font-size: 12.5px; font-weight: 600; }
.lrn-tag { color: #93a89c; font-weight: 500; }
.lrn-row-soon { color: #a9c2b4; cursor: default; }
.lrn-row-soon .lrn-row-icon { opacity: 0.6; }

/* ---- Learning path: hero --------------------------------------------------------------------- */
.lrn-path-hero { padding: 48px 0 36px; background: radial-gradient(ellipse 55% 75% at 90% 0%, rgba(19, 136, 62, 0.13), transparent 70%), var(--canvas, #fcfcfc); }
.lrn-path-hero h1 { margin: 14px 0 10px; font-size: clamp(2rem, 4.4vw, 2.8rem); }
.lrn-path-stats { display: flex; flex-wrap: wrap; gap: 22px 36px; margin: 22px 0 24px; padding: 18px 0 0; border-top: 1px solid var(--hairline, #dfe7e0); }
.lrn-path-stats div { margin: 0; }
.lrn-path-stats dd { margin: 0; font-size: 1.3rem; font-weight: 700; letter-spacing: -0.01em; color: var(--ink, #012f1f); }
.lrn-path-stats dt { margin: 3px 0 0; font-size: 12.5px; color: var(--muted, #5f6f67); }

/* ---- Learning path: lessons + aside ---------------------------------------------------------- */
.lrn-path-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 40px; align-items: start; padding-top: 8px; }
.lrn-path-section + .lrn-path-section { margin-top: 28px; }
.lrn-path-section h2 { margin: 0 0 10px; font-size: 1.05rem; }
.lrn-lesson-list { list-style: none; margin: 0; padding: 0; border: 1px solid var(--hairline, #dfe7e0); border-radius: 14px; overflow: hidden; background: var(--card, #fff); }
.lrn-lesson-list li + li { border-top: 1px solid var(--hairline, #dfe7e0); }
.lrn-lesson-list a { display: flex; align-items: flex-start; gap: 14px; padding: 14px 16px; color: var(--ink, #012f1f); text-decoration: none; }
.lrn-lesson-list a:hover, .lrn-lesson-list a:focus-visible { background: var(--soft, #f4f7f4); }
.lrn-lesson-list a:focus-visible { outline: 2px solid var(--green, #107a37); outline-offset: -2px; }
.lrn-lesson-num { flex: none; width: 26px; padding-top: 1px; font-variant-numeric: tabular-nums; font-weight: 700; color: var(--muted, #5f6f67); }
.lrn-lesson-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.lrn-lesson-title { font-weight: 600; font-size: 0.97rem; }
.lrn-lesson-desc { font-size: 13px; color: var(--muted, #5f6f67); line-height: 1.45; }
.lrn-path-aside { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 88px; }
.lrn-path-card { padding: 16px 18px; border: 1px solid var(--hairline, #dfe7e0); border-radius: 14px; background: var(--card, #fff); }
.lrn-path-card h3 { margin: 0 0 10px; font-size: 0.92rem; }
.lrn-path-card ul { margin: 0; padding-left: 1.1em; font-size: 13.5px; color: var(--body, #33423b); line-height: 1.55; }
.lrn-path-card li + li { margin-top: 6px; }
.lrn-path-card p { margin: 0; font-size: 13.5px; color: var(--body, #33423b); line-height: 1.55; }
.lrn-path-card a { color: var(--green, #107a37); font-weight: 600; text-decoration: none; }
.lrn-path-card a:hover { text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 860px) {
  .lrn-path-grid { grid-template-columns: minmax(0, 1fr); }
  .lrn-path-aside { position: static; }
}
@media (max-width: 760px) {
  .lrn-grid { display: flex; flex-direction: column; gap: 20px; }
  .lrn-col { display: contents; }
  .lrn-group-card { order: var(--o); }
}
@media (max-width: 680px) {
  .lrn-hero, .lrn-path-hero { padding: 36px 0 24px; }
}