/* Reader additions never target audio controls, routes, captions or image identity. */
.reader-design {--rd-ink:#243941;--rd-sand:#f7f1e7;--rd-sky:#dbeaf0;--rd-line:#becdce;}
.reader-design .rd-title {font-size:clamp(2.25rem,4.6vw,4.4rem);line-height:1.07;letter-spacing:-.045em;text-wrap:balance;max-width:19ch;margin-block:1.5rem 2rem;color:var(--rd-ink);}
.reader-design .rd-lead-photo {margin-block:1.8rem 2.8rem;}
.reader-design .rd-lead-photo img {display:block;width:100%;height:auto;max-height:none;object-fit:contain;border-radius:22px;}
.reader-design .rd-navigation {margin:1.5rem auto 2rem;max-width:72rem;color:var(--rd-ink);font-family:inherit;}
.reader-design .rd-modes {display:flex;flex-wrap:wrap;gap:.65rem;margin-bottom:.8rem;}
.reader-design .rd-modes a {display:inline-flex;align-items:center;min-height:44px;padding:.7rem 1.1rem;border:1px solid var(--rd-line);border-radius:999px;text-decoration:none;background:var(--rd-sand);font-size:.95rem;font-weight:600;}
.reader-design .rd-modes a:first-child {background:var(--rd-ink);color:#fff;border-color:var(--rd-ink);}
.reader-design .rd-chapters {border:1px solid var(--rd-line);border-radius:18px;background:var(--rd-sky);padding:.2rem 1rem;}
.reader-design .rd-chapters summary {cursor:pointer;min-height:44px;align-content:center;font-weight:600;padding:.5rem 0;}
.reader-design .rd-chapters ol {columns:2;column-gap:2rem;padding-left:1.3rem;margin:.25rem 0 1rem;}
.reader-design .rd-chapters li {break-inside:avoid;padding:.15rem 0;}
.reader-design .rd-chapters a {display:block;padding:.55rem .25rem;min-height:44px;box-sizing:border-box;text-decoration:none;font-size:.94rem;line-height:1.4;overflow-wrap:anywhere;color:var(--rd-ink);}
.reader-design .rd-navigation a:focus-visible,.reader-design .rd-navigation summary:focus-visible {outline:3px solid #286783;outline-offset:3px;}
.reader-design main h1,.reader-design main h2 {scroll-margin-top:100px;}
@media(min-width:1500px){.reader-design .rd-navigation {max-width:760px}.reader-design .rd-chapters {position:fixed;left:max(16px,calc((100vw - 1440px)/2));top:110px;width:205px;max-height:calc(100vh - 330px);overflow:auto;z-index:5}.reader-design .rd-chapters ol{columns:1}.reader-design .rd-chapters summary{font-size:.9rem}}
@media(max-width:640px){.reader-design .rd-navigation{margin-block:1rem 1.5rem}.reader-design .rd-chapters ol{columns:1}.reader-design .rd-title{font-size:clamp(2rem,9vw,3rem);max-width:none}.reader-design .rd-lead-photo img{border-radius:14px}.reader-design .rd-modes a{flex:1;justify-content:center}}
@media(prefers-reduced-motion:reduce){.reader-design{scroll-behavior:auto}}