/* Shared reading scale: content first, secondary text only for metadata. */
:root {
  --text-strong: #171719;
  --text-primary: #27272d;
  --text-secondary: #45454f;
  --text-link: #5730ad;
  --body-copy: 18px;
  --reading-copy: 20px;
  --support-copy: 16px;
  --label-copy: 14px;
  --reading-width: min(68ch, 720px);
  --reading-leading: 1.75;
}
.contents-title { color: var(--text-strong); font-size: var(--label-copy); font-weight: 700; margin-bottom: 12px; }
.contents-mobile { display: none; }
@media (max-width: 800px) {
  .contents-desktop { display: none; }
  .toc .contents-mobile, .library-toc .contents-mobile { display: block; padding: 0; border: 0; }
  .contents-mobile summary { padding: 16px 0; color: var(--text-strong); font: 650 16px/1.5 var(--body); cursor: pointer; }
  .contents-mobile nav { display: grid; gap: 4px; padding-bottom: 16px; }
  .toc .contents-mobile a, .library-toc .contents-mobile a { display: block; margin: 0; padding: 10px 0; color: var(--text-primary); font-size: 16px; line-height: 1.5; }
}
@media (max-width: 600px) {
  :root { --body-copy: 17px; --reading-copy: 18px; }
}
.install-panel,.library-content .install-panel,.guide-content .install-panel{margin:32px 0;padding:28px;border:1px solid #ddd5ef;border-radius:14px;background:#f7f4fd;color:var(--text-primary);max-width:1080px}
.install-panel h2,.library-content .install-panel h2,.guide-content .install-panel h2{margin:0 0 14px;font-family:var(--display);font-size:clamp(24px,3vw,30px);font-weight:700;line-height:1.25;letter-spacing:-.03em;color:var(--text-strong)}
.install-panel p,.library-content .install-panel p,.guide-content .install-panel p{margin:0 0 22px;max-width:65ch;color:var(--text-primary);font-size:var(--body-copy);line-height:1.65}
.install-actions{display:flex;gap:12px;flex-wrap:wrap}
.install-panel .install-button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;min-width:190px;padding:13px 20px;border:1px solid #171719;border-radius:999px;font:650 16px/1.4 var(--body);text-align:center;text-decoration:none;transition:background-color .16s ease,transform .16s ease}
.install-panel .install-primary{background:#171719;color:#fff}
.install-panel .install-primary:hover{background:#35353c;color:#fff}
.install-panel .install-secondary{background:#fff;color:#171719}
.install-panel .install-secondary:hover{background:#efebf7;color:#171719}
.install-panel .install-button:focus-visible{outline:3px solid #7654e7;outline-offset:4px}
main>.install-end{margin:36px auto 52px}
body>.install-end{width:calc(100% - 40px);margin:36px auto 52px}
@media(max-width:600px){.install-panel,.library-content .install-panel,.guide-content .install-panel{padding:22px 18px;margin-block:26px}.install-panel .install-button{width:100%;min-width:0}.install-panel h2,.library-content .install-panel h2,.guide-content .install-panel h2{font-size:25px}}