:root {
  --skilltrack-ink: #162033;
  --skilltrack-muted: #5a6678;
  --skilltrack-surface: #ffffff;
  --skilltrack-soft: #f6f8fb;
  --skilltrack-soft-strong: #edf2f7;
  --skilltrack-border: #d9e0e8;
  --skilltrack-primary: #2457d6;
  --skilltrack-primary-dark: #173f9f;
  --skilltrack-success: #167452;
  --skilltrack-success-soft: #e9f6f0;
  --skilltrack-accent-soft: #eef3ff;
  --skilltrack-shadow: 0 14px 34px rgba(24, 36, 56, .08);
}

.skilltrack-page { color: var(--skilltrack-ink); }
.skilltrack-page h1,.skilltrack-page h2,.skilltrack-page h3,.skilltrack-page p { margin-top: 0; }
.skilltrack-page h1 { font-size: clamp(2rem, 4.5vw, 3.35rem); line-height: 1.04; letter-spacing: -.035em; font-weight: 800; }
.skilltrack-page h2 { font-size: clamp(1.25rem, 2.3vw, 1.65rem); font-weight: 800; letter-spacing: -.02em; }
.skilltrack-page h3 { font-size: 1.05rem; font-weight: 800; }
.skilltrack-page a { text-underline-offset: .16em; }
.skilltrack-page svg { width: 1.05rem; height: 1.05rem; stroke-width: 2; flex: 0 0 auto; }
.skilltrack-eyebrow { display: block; color: var(--skilltrack-primary-dark); font-size: .78rem; line-height: 1.2; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .55rem; }
.skilltrack-page-header,.skilltrack-learning-header,.skilltrack-lesson-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin-bottom: 2rem; }
.skilltrack-page-heading { max-width: 760px; }
.skilltrack-page-heading p,.skilltrack-learning-header p { max-width: 720px; color: var(--skilltrack-muted); font-size: 1.08rem; line-height: 1.65; margin-bottom: 0; }

.skilltrack-button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border: 1px solid transparent; border-radius: .72rem; padding: .68rem 1rem; font-size: .92rem; font-weight: 800; line-height: 1.15; text-decoration: none; transition: background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease; }
.skilltrack-button-primary { background: var(--skilltrack-primary); border-color: var(--skilltrack-primary); color: #fff; }
.skilltrack-button-primary:hover { background: var(--skilltrack-primary-dark); border-color: var(--skilltrack-primary-dark); color: #fff; }
.skilltrack-button-secondary { background: var(--skilltrack-surface); border-color: #aeb9c8; color: var(--skilltrack-ink); }
.skilltrack-button-secondary:hover { background: var(--skilltrack-soft); border-color: #8997aa; color: var(--skilltrack-ink); }
.skilltrack-button-compact { min-height: 38px; padding: .5rem .75rem; font-size: .84rem; }
.skilltrack-button-block { width: 100%; }
.skilltrack-button:focus-visible,.skilltrack-course-tile a:focus-visible,.skilltrack-back-link:focus-visible,.skilltrack-verification-link:focus-visible { outline: 3px solid rgba(36,87,214,.28); outline-offset: 3px; }

.skilltrack-empty { display: grid; place-items: center; gap: .8rem; min-height: 240px; padding: 2rem; border: 1px solid var(--skilltrack-border); border-radius: 1.1rem; background: var(--skilltrack-soft); text-align: center; color: var(--skilltrack-muted); }
.skilltrack-empty svg { width: 2rem; height: 2rem; color: var(--skilltrack-primary); }
.skilltrack-catalog-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1.3rem; }
.skilltrack-course-tile { min-width: 0; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--skilltrack-border); border-radius: 1rem; background: var(--skilltrack-surface); box-shadow: 0 4px 14px rgba(24,36,56,.04); }
.skilltrack-course-media { display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--skilltrack-soft-strong); }
.skilltrack-course-media img { width: 100%; height: 100%; display: block; object-fit: cover; }
.skilltrack-course-body { display: flex; flex: 1; flex-direction: column; padding: 1.25rem; }
.skilltrack-chip-row,.skilltrack-course-meta,.skilltrack-course-facts { display: flex; flex-wrap: wrap; gap: .45rem .7rem; }
.skilltrack-chip-row { margin-bottom: .8rem; }
.skilltrack-chip { display: inline-flex; align-items: center; gap: .35rem; width: fit-content; border: 1px solid var(--skilltrack-border); border-radius: 999px; background: var(--skilltrack-soft); color: #344258; padding: .3rem .58rem; font-size: .75rem; font-weight: 750; line-height: 1.2; }
.skilltrack-chip-accent { background: var(--skilltrack-accent-soft); border-color: #c8d6ff; color: var(--skilltrack-primary-dark); }
.skilltrack-course-meta { color: var(--skilltrack-muted); font-size: .82rem; font-weight: 700; }
.skilltrack-course-meta span + span::before { content: "·"; margin-right: .7rem; color: #9aa6b5; }
.skilltrack-course-tile h2 { margin: .62rem 0 .52rem; font-size: 1.18rem; line-height: 1.25; }
.skilltrack-course-tile h2 a { color: var(--skilltrack-ink); text-decoration: none; }
.skilltrack-course-tile h2 a:hover { color: var(--skilltrack-primary-dark); text-decoration: underline; }
.skilltrack-course-summary { color: var(--skilltrack-muted); line-height: 1.55; margin-bottom: 1rem; }
.skilltrack-course-facts { color: #46546a; font-size: .82rem; margin-top: auto; padding-top: .4rem; }
.skilltrack-course-facts span { display: inline-flex; align-items: center; gap: .34rem; }
.skilltrack-course-footer { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; padding-top: 1rem; margin-top: 1rem; border-top: 1px solid var(--skilltrack-border); }
.skilltrack-price-label,.skilltrack-purchase-type { display: block; color: var(--skilltrack-muted); font-size: .78rem; line-height: 1.3; }
.skilltrack-price { display: block; font-size: 1.35rem; line-height: 1.1; font-weight: 850; }
.skilltrack-price-large { font-size: 2.2rem; margin: .2rem 0 .25rem; }

.skilltrack-notice { display: flex; align-items: flex-start; gap: .65rem; margin-bottom: 1.25rem; border: 1px solid #c8d6ff; border-radius: .85rem; background: var(--skilltrack-accent-soft); color: #253a70; padding: .9rem 1rem; }
.skilltrack-notice-success { border-color: #b5ddca; background: var(--skilltrack-success-soft); color: #125a42; }
.skilltrack-detail-layout,.skilltrack-learning-layout,.skilltrack-lesson-layout,.skilltrack-certificate-shell { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 2rem; align-items: start; }
.skilltrack-detail-main { min-width: 0; }
.skilltrack-detail-hero { padding: .4rem 0 1.7rem; border-bottom: 1px solid var(--skilltrack-border); }
.skilltrack-detail-hero .skilltrack-course-meta { margin-bottom: .75rem; }
.skilltrack-detail-lead { max-width: 760px; color: #425069; font-size: 1.14rem; line-height: 1.65; }
.skilltrack-fact-strip { display: flex; flex-wrap: wrap; gap: .75rem 1.2rem; margin-top: 1.35rem; }
.skilltrack-fact-strip span { display: inline-flex; align-items: center; gap: .45rem; color: var(--skilltrack-muted); font-size: .88rem; }
.skilltrack-fact-strip strong { color: var(--skilltrack-ink); }
.skilltrack-content-section { padding: 1.8rem 0; border-bottom: 1px solid var(--skilltrack-border); }
.skilltrack-content-section p { color: var(--skilltrack-muted); line-height: 1.7; margin-bottom: 0; white-space: pre-line; }
.skilltrack-outcomes { display: grid; grid-template-columns: auto minmax(0,1fr); gap: 1rem; }
.skilltrack-section-icon { width: 2.65rem; height: 2.65rem; display: grid; place-items: center; border-radius: .75rem; background: var(--skilltrack-accent-soft); color: var(--skilltrack-primary-dark); }
.skilltrack-section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.skilltrack-section-heading h2 { margin-bottom: 0; }
.skilltrack-module-stack { display: grid; gap: 1rem; }
.skilltrack-module { overflow: hidden; border: 1px solid var(--skilltrack-border); border-radius: .95rem; background: var(--skilltrack-surface); }
.skilltrack-module > header { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: .9rem; align-items: start; padding: 1rem 1.1rem; background: var(--skilltrack-soft); border-bottom: 1px solid var(--skilltrack-border); }
.skilltrack-module > header h2,.skilltrack-module > header h3 { margin-bottom: .25rem; }
.skilltrack-module > header p { color: var(--skilltrack-muted); font-size: .9rem; line-height: 1.5; margin-bottom: 0; }
.skilltrack-module-number { width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: 50%; background: var(--skilltrack-primary); color: #fff; font-weight: 850; font-size: .82rem; }
.skilltrack-module-count { color: var(--skilltrack-muted); font-size: .82rem; font-weight: 750; padding-top: .35rem; }
.skilltrack-lesson-list { display: grid; }
.skilltrack-lesson-row { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: .8rem; align-items: center; padding: .9rem 1.05rem; border-top: 1px solid var(--skilltrack-border); }
.skilltrack-lesson-row:first-child { border-top: 0; }
.skilltrack-lesson-icon { color: var(--skilltrack-primary); }
.skilltrack-lesson-copy { min-width: 0; display: grid; gap: .15rem; }
.skilltrack-lesson-copy strong { line-height: 1.35; }
.skilltrack-lesson-copy span,.skilltrack-lesson-copy small { color: var(--skilltrack-muted); font-size: .8rem; line-height: 1.4; }
.skilltrack-learning-row.is-complete .skilltrack-lesson-icon { color: var(--skilltrack-success); }
.skilltrack-learning-row.is-complete .skilltrack-lesson-copy strong { color: #405066; }

.skilltrack-decision-rail,.skilltrack-learning-rail > section,.skilltrack-lesson-actions,.skilltrack-certificate-rail { position: sticky; top: 6rem; overflow: hidden; border: 1px solid var(--skilltrack-border); border-radius: 1rem; background: var(--skilltrack-surface); box-shadow: var(--skilltrack-shadow); }
.skilltrack-detail-image { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; background: var(--skilltrack-soft); }
.skilltrack-rail-body { padding: 1.25rem; }
.skilltrack-rail-body form { margin: 1rem 0 0; }
.skilltrack-inline-status { display: inline-flex; align-items: center; gap: .45rem; margin-top: .75rem; color: #4f5d71; font-size: .82rem; font-weight: 750; }
.skilltrack-inline-status-success { color: var(--skilltrack-success); }
.skilltrack-rail-divider { height: 1px; background: var(--skilltrack-border); margin: 1.15rem 0; }
.skilltrack-rail-facts { display: grid; gap: .85rem; }
.skilltrack-rail-facts h2 { font-size: 1rem; margin-bottom: 0; }
.skilltrack-rail-facts > div { display: grid; grid-template-columns: auto minmax(0,1fr); gap: .65rem; align-items: start; }
.skilltrack-rail-facts svg { color: var(--skilltrack-primary); margin-top: .18rem; }
.skilltrack-rail-facts span { display: grid; gap: .05rem; }
.skilltrack-rail-facts small { color: var(--skilltrack-muted); font-size: .75rem; }
.skilltrack-rail-facts strong { font-size: .86rem; }
.skilltrack-disclaimer { color: var(--skilltrack-muted); font-size: .76rem; line-height: 1.45; margin: 1.05rem 0 0; }

.skilltrack-learning-header { align-items: center; }
.skilltrack-learning-header h1 { font-size: clamp(1.8rem,4vw,2.7rem); margin-bottom: .35rem; }
.skilltrack-progress-panel { margin-bottom: 1.6rem; padding: 1rem 1.15rem; border: 1px solid var(--skilltrack-border); border-radius: .9rem; background: var(--skilltrack-soft); }
.skilltrack-progress-copy { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: .65rem; color: var(--skilltrack-muted); font-size: .82rem; }
.skilltrack-progress-copy div { display: flex; align-items: baseline; gap: .6rem; }
.skilltrack-progress-copy strong { color: var(--skilltrack-ink); font-size: 1.35rem; }
.skilltrack-progress-track { height: .65rem; overflow: hidden; border-radius: 999px; background: #dfe5ed; }
.skilltrack-progress-track span { display: block; height: 100%; border-radius: inherit; background: var(--skilltrack-primary); }
.skilltrack-learning-layout { grid-template-columns: minmax(0,1fr) 300px; }
.skilltrack-learning-rail { display: grid; gap: 1rem; }
.skilltrack-learning-rail > section { position: static; padding: 1.1rem; box-shadow: none; }
.skilltrack-next-panel { border-color: #bfd0ff !important; background: var(--skilltrack-accent-soft) !important; }
.skilltrack-next-panel h2,.skilltrack-reward-panel h2 { font-size: 1.05rem; margin-bottom: .45rem; }
.skilltrack-next-panel p,.skilltrack-reward-panel p { color: var(--skilltrack-muted); font-size: .86rem; line-height: 1.5; }
.skilltrack-reward-panel .skilltrack-section-icon { margin-bottom: .75rem; }
.skilltrack-reward-panel small { display: block; margin-top: .45rem; color: var(--skilltrack-muted); }

.skilltrack-back-link { display: inline-flex; align-items: center; gap: .4rem; color: var(--skilltrack-primary-dark); font-size: .86rem; font-weight: 800; text-decoration: none; margin-bottom: 1.2rem; }
.skilltrack-back-link:hover { text-decoration: underline; }
.skilltrack-lesson-header { align-items: center; padding-bottom: 1.25rem; border-bottom: 1px solid var(--skilltrack-border); }
.skilltrack-lesson-header h1 { font-size: clamp(1.8rem,4vw,2.75rem); margin-bottom: 0; }
.skilltrack-lesson-content { min-height: 280px; display: grid; grid-template-columns: auto minmax(0,1fr); gap: 1rem; align-items: start; border: 1px solid var(--skilltrack-border); border-radius: 1rem; background: var(--skilltrack-surface); padding: 1.35rem; }
.skilltrack-lesson-content p { color: var(--skilltrack-muted); line-height: 1.7; white-space: pre-line; }
.skilltrack-lesson-actions { padding: 1.2rem; }
.skilltrack-lesson-nav { display: grid; gap: .65rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--skilltrack-border); }
.skilltrack-complete-message { display: flex; align-items: center; gap: .55rem; border: 1px solid #b5ddca; border-radius: .75rem; background: var(--skilltrack-success-soft); color: var(--skilltrack-success); padding: .8rem; font-weight: 800; }

.skilltrack-certificate-shell { grid-template-columns: minmax(0,1fr) 320px; }
.skilltrack-certificate-document { min-height: 620px; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border: 1px solid #bbc6d5; border-radius: 1rem; background: var(--skilltrack-surface); padding: clamp(2rem,5vw,4rem); box-shadow: var(--skilltrack-shadow); }
.skilltrack-certificate-document::before { content: ""; position: absolute; inset: .7rem; border: 1px solid #d9e0e8; border-radius: .7rem; pointer-events: none; }
.skilltrack-certificate-brand { position: absolute; top: 1.65rem; left: 1.8rem; font-weight: 900; letter-spacing: -.02em; }
.skilltrack-certificate-mark { width: 4.5rem; height: 4.5rem; display: grid; place-items: center; margin-bottom: 1rem; border-radius: 50%; background: var(--skilltrack-accent-soft); color: var(--skilltrack-primary); }
.skilltrack-certificate-mark svg { width: 2.25rem; height: 2.25rem; }
.skilltrack-certificate-document h1 { max-width: 640px; font-size: clamp(1.5rem,3vw,2.2rem); margin-bottom: 1rem; }
.skilltrack-certificate-name { font-size: clamp(2rem,5vw,3.35rem); line-height: 1.05; letter-spacing: -.04em; margin: .4rem 0 1rem; }
.skilltrack-certificate-document > p { color: var(--skilltrack-muted); }
.skilltrack-certificate-document h2 { color: var(--skilltrack-primary-dark); font-size: clamp(1.45rem,3vw,2.15rem); margin-bottom: 1rem; }
.skilltrack-certificate-issued { max-width: 620px; font-size: .88rem; }
.skilltrack-certificate-seal { display: inline-flex; align-items: center; gap: .45rem; margin-top: .6rem; color: var(--skilltrack-success); font-weight: 850; }
.skilltrack-certificate-rail { padding: 1.2rem; }
.skilltrack-certificate-rail section { display: grid; gap: .6rem; }
.skilltrack-certificate-rail h2 { font-size: 1rem; margin-bottom: 0; }
.skilltrack-verification-link { overflow-wrap: anywhere; color: var(--skilltrack-primary-dark); font-size: .82rem; font-weight: 700; }
.skilltrack-share-actions { display: grid; gap: .65rem; margin-top: 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--skilltrack-border); }

@media (max-width: 1080px) {
  .skilltrack-catalog-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .skilltrack-detail-layout,.skilltrack-learning-layout,.skilltrack-lesson-layout,.skilltrack-certificate-shell { grid-template-columns: minmax(0,1fr) 300px; gap: 1.25rem; }
}
@media (max-width: 820px) {
  .skilltrack-page-header,.skilltrack-learning-header,.skilltrack-lesson-header { align-items: flex-start; flex-direction: column; }
  .skilltrack-detail-layout,.skilltrack-learning-layout,.skilltrack-lesson-layout,.skilltrack-certificate-shell { grid-template-columns: 1fr; }
  .skilltrack-decision-rail,.skilltrack-lesson-actions,.skilltrack-certificate-rail { position: static; }
  .skilltrack-learning-rail { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .skilltrack-certificate-document { min-height: 520px; }
}
@media (max-width: 620px) {
  .skilltrack-page { padding-top: 2rem !important; padding-bottom: 2.5rem !important; }
  .skilltrack-catalog-grid { grid-template-columns: 1fr; }
  .skilltrack-course-footer { align-items: stretch; flex-direction: column; }
  .skilltrack-course-footer .skilltrack-button { width: 100%; }
  .skilltrack-fact-strip { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .skilltrack-module > header { grid-template-columns: auto minmax(0,1fr); }
  .skilltrack-module-count { grid-column: 2; padding-top: 0; }
  .skilltrack-lesson-row { grid-template-columns: auto minmax(0,1fr); align-items: start; }
  .skilltrack-lesson-row > .skilltrack-chip,.skilltrack-learning-row > .skilltrack-button { grid-column: 2; justify-self: start; }
  .skilltrack-learning-row > .skilltrack-button { width: 100%; }
  .skilltrack-learning-rail { grid-template-columns: 1fr; }
  .skilltrack-progress-copy { align-items: flex-start; flex-direction: column; }
  .skilltrack-section-heading { align-items: flex-start; flex-direction: column; }
  .skilltrack-lesson-content { grid-template-columns: 1fr; min-height: 0; }
  .skilltrack-lesson-content .skilltrack-section-icon { width: 2.35rem; height: 2.35rem; }
  .skilltrack-certificate-document { min-height: 0; padding: 5.25rem 1.45rem 2.4rem; }
  .skilltrack-certificate-brand { top: 1.45rem; left: 1.45rem; }
  .skilltrack-certificate-name { font-size: 2.1rem; overflow-wrap: anywhere; }
}