.usage-page{max-width:1180px}
.usage-intro{max-width:820px;margin:0 auto 32px;text-align:start}
.usage-intro h1{margin:0;color:hsl(var(--primary));font-size:clamp(2rem,4vw,3.2rem);line-height:1.5}
.usage-intro>p:last-of-type{max-width:730px;color:hsl(var(--muted-foreground));font-size:1.05rem;line-height:2;margin:18px 0 22px}
.usage-actions,.usage-links{display:flex;gap:12px;flex-wrap:wrap}
.usage-actions a,.usage-links a,.usage-top{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:10px 14px;border:1px solid hsl(var(--border));border-radius:8px;text-decoration:none;font-size:.9rem;font-weight:700;color:hsl(var(--primary))}
.usage-actions a:first-child{background:hsl(var(--primary));color:hsl(var(--primary-foreground));border-color:hsl(var(--primary))}
.usage-journey{padding-block:12px 28px;border-bottom:1px solid hsl(var(--border));margin-bottom:42px}
.usage-journey ol{list-style:none;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin:0;padding:0}
.usage-journey a{display:flex;flex-direction:column;gap:9px;min-height:72px;padding:10px;text-decoration:none;line-height:1.6;font-size:.85rem;font-weight:700;color:hsl(var(--primary))}
.usage-journey span,.usage-section-number{color:hsl(var(--muted-foreground));font-size:.85rem;font-weight:800;margin:0 0 10px}
.usage-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:54px;align-items:start}
.usage-contents{grid-column:2;grid-row:1;position:sticky;top:100px;max-height:calc(100svh - 116px);overflow:auto;border-inline-start:1px solid hsl(var(--border));padding-inline-start:20px}
.usage-contents h2{font-size:1rem;margin:0 0 12px;color:hsl(var(--primary))}
.usage-contents ol{list-style:none;padding:0;margin:0}
.usage-contents a{display:block;padding:9px 0;min-height:44px;font-size:.8rem;line-height:1.8;text-decoration:none;color:hsl(var(--muted-foreground))}
.usage-article{grid-column:1;grid-row:1;min-width:0;overflow-wrap:anywhere}
.usage-article section{scroll-margin-top:95px;border-bottom:1px solid hsl(var(--border));padding-bottom:34px;margin-bottom:38px}
.usage-article h2{font-size:clamp(1.2rem,2vw,1.55rem);line-height:1.7;color:hsl(var(--primary));margin:0 0 16px}
.usage-article p,.usage-steps{font-size:1rem;line-height:2.15;margin:0 0 18px}
.usage-steps{padding-inline-start:25px}
.usage-steps li{padding-inline-start:6px;margin-bottom:12px}
.usage-steps li::marker{color:hsl(var(--muted-foreground));font-weight:800}
.usage-article .usage-note{border-inline-start:3px solid hsl(var(--secondary));padding:10px 16px;color:hsl(var(--muted-foreground))}
.usage-faq{border:1px solid hsl(var(--border));border-radius:8px;margin:10px 0}
.usage-faq summary{cursor:pointer;padding:14px 16px;min-height:48px;font-size:.95rem;font-weight:700;line-height:1.9;color:hsl(var(--primary))}
.usage-faq p{margin:0;padding:0 16px 18px;color:hsl(var(--muted-foreground))}
.usage-endnote{color:hsl(var(--muted-foreground));font-size:.85rem!important}
.usage-body :is(a,button,summary,section):focus-visible{outline:2px solid hsl(var(--primary));outline-offset:3px}
.usage-page :is(a,summary){scroll-margin-top:95px}
.usage-page a:hover{text-decoration:underline}
.usage-skip{position:fixed;inset-inline-start:16px;top:8px;transform:translateY(-160%);padding:12px;background:hsl(var(--background));color:hsl(var(--primary));z-index:30}
.usage-skip:focus{transform:none}
@media(max-width:800px){.usage-layout{grid-template-columns:minmax(0,1fr);gap:28px}.usage-contents{grid-column:1;grid-row:1;position:static;max-height:none;border-inline-start:0;border-bottom:1px solid hsl(var(--border));padding:0 0 24px}.usage-contents ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}.usage-article{grid-column:1;grid-row:2}.usage-journey ol{grid-template-columns:repeat(3,minmax(0,1fr))}.usage-journey{margin-bottom:28px}.usage-intro>p:last-of-type{font-size:1rem}.usage-article p,.usage-steps{font-size:.95rem;line-height:2.1}}
@media(max-width:360px){.usage-journey ol{grid-template-columns:repeat(2,minmax(0,1fr))}.usage-contents ol{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}