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@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap";
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clamp(22px,3vw,28px);display:flex}.next-cta-label{opacity:.7;letter-spacing:.04em;text-transform:uppercase;margin-bottom:6px;font-size:12px;font-weight:600}.next-cta-title{letter-spacing:-.015em;text-wrap:balance;margin:0 0 4px;font-size:clamp(17px,1vw + 14px,20px);font-weight:700}.next-cta-sub{opacity:.75;margin:0;font-size:13px}.next-cta .btn-primary{color:var(--indigo-700);background:#fff}.next-cta .btn-primary:hover{background:var(--indigo-50)}.stage-hero{max-width:var(--container-xl);padding:clamp(32px, 5vw, 56px) var(--pad-x) 24px;margin:0 auto}.stage-hero-top{color:var(--fg-muted);flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;font-size:13px;display:flex}.stage-hero-title{font-size:var(--fs-stage-hero);letter-spacing:-.025em;text-wrap:balance;margin:0 0 12px;font-weight:800;line-height:1.15}.stage-hero-sub{color:var(--fg-muted);max-width:680px;margin:0 0 24px;font-size:clamp(15px,.5vw + 14px,17px);line-height:1.65}.stage-stats{border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);background:#fff;flex-wrap:wrap;gap:24px;width:fit-content;max-width:100%;padding:16px 20px;display:flex}.stat{text-align:center}.stat--left{text-align:left}.stat-unit{color:var(--fg-muted);font-size:14px;font-weight:500}.stat-status{color:var(--fg-muted);font-size:15px}.stat-status.is-open{color:var(--success-600)}.stage-sibling{display:block}.stage-sibling-top{justify-content:flex-start}.stage-sibling--next .stage-sibling-top{justify-content:flex-end}.stage-sibling-tag{background:var(--bg-muted);color:var(--fg-muted)}.stage-sibling-tag--next{background:var(--primary-bg);color:var(--indigo-700)}.stage-sibling-body{padding:8px 0 0}.stage-sibling--next .stage-sibling-body{text-align:right}.stage-sibling-kicker{color:var(--fg-muted);margin-bottom:4px;font-size:13px}.stage-sibling-title{letter-spacing:-.01em;font-size:18px;font-weight:700}.stat-val{letter-spacing:-.02em;color:var(--fg);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.stat-label{color:var(--fg-muted);margin-top:2px;font-size:11px;font-weight:500}.stat-divider{background:var(--border);width:1px;height:28px}.stage-siblings{max-width:var(--container-xl);padding:16px var(--pad-x) 64px;grid-template-columns:1fr 1fr;gap:16px;margin:0 auto;display:grid}.stage-siblings>*{min-width:0}.empty-card{max-width:720px;padding:clamp(32px, 5vw, 48px) var(--pad-x);border:1px dashed var(--border-strong);border-radius:var(--radius-lg);text-align:center;background:#fff;margin:32px auto 80px}.empty-card h3{margin:0 0 12px;font-size:18px}.empty-card p{color:var(--fg-muted);max-width:48ch;margin:0 auto 24px;line-height:1.7}@media (max-width:960px){.layout{grid-template-columns:1fr}.sidebar{max-height:360px;position:static}.sidebar-list{max-height:240px}.footer-inner{grid-template-columns:1fr}}@media (max-width:720px){.nav{gap:12px}.brand-sub{display:none}.stage-siblings{grid-template-columns:1fr}.chapter-progress-toggle{flex-direction:column;align-items:stretch}.chapter-progress-actions{justify-content:stretch}.chapter-progress-actions .btn-track{flex:auto;justify-content:center}.next-cta{flex-direction:column;align-items:stretch}.next-cta .btn{justify-content:center;align-self:stretch}.lesson-actions{flex-direction:column}.lesson-actions .btn{width:100%}.footer-bottom{flex-direction:column;gap:6px}.topbar{gap:10px}.topbar-brand{font-size:13px}.topbar-divider{display:none}}@media (max-width:520px){.hero-kicker{padding:5px 10px;font-size:13px}.hero-cta .btn-lg{padding:12px 16px;font-size:14px}.footer-links{grid-template-columns:repeat(2,minmax(0,1fr))}.stage-stats{gap:14px;padding:12px 16px}.stage-stats .stat-divider{display:none}.nav-link{padding:8px 10px;font-size:13px}.brand-title{font-size:14px}}@media (max-width:380px){.footer-links{grid-template-columns:1fr}.stage-chip{padding:8px 12px;font-size:13px}}@media (hover:none){.course-card:hover{transform:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}