:root{--ink:#132345;--paper:#faf8f2;--gold:#b78439}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 Arial,sans-serif}a{color:inherit;text-underline-offset:4px}button,a{touch-action:manipulation}button{cursor:pointer;font:inherit;border:1px solid #132345;background:#132345;color:#fff;padding:12px 20px;border-radius:8px}header{display:flex;gap:30px;align-items:center;padding:20px 5%;border-bottom:1px solid #ddd8cc;background:white}header a{font-size:14px}.reader-brand{margin-right:auto;text-decoration:none;letter-spacing:3px;font-weight:bold}.reader-brand span{color:var(--gold);font-size:30px;vertical-align:middle}main{max-width:1500px;margin:auto;padding:35px 4%}.reader-intro{display:flex;justify-content:space-between;align-items:center;gap:25px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:bold}h1{font:clamp(38px,5vw,64px)/1.1 Georgia,serif;margin:10px 0}h1 em{color:#966434}.reader-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.reader-actions a{font-size:13px}.reader-help{font-size:14px;max-width:900px;margin:25px 0}#lecture{height:80vh;min-height:540px;background:#e1e4e8;border:1px solid #c5c9d1;border-radius:14px;overflow:hidden;box-shadow:0 20px 55px #13234516}iframe{display:block;border:0;width:100%;height:100%}iframe:fullscreen{height:100vh;width:100vw;background:white}details{padding:20px 0;border-bottom:1px solid #ddd8cc}summary{cursor:pointer;font-weight:bold}aside{padding:20px 0}h2{font:28px Georgia,serif}footer{padding:20px 4%;background:var(--ink);color:white;font-size:12px;display:flex;gap:20px;justify-content:space-between}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:white;padding:12px;z-index:5}:focus-visible{outline:3px solid #b78439;outline-offset:4px}@media(max-width:600px){header{flex-wrap:wrap;gap:12px;padding:14px 5%}.reader-brand{width:100%}.reader-intro{display:block}.reader-actions{margin-top:20px}main{padding:25px 4%}#lecture{min-height:520px;height:75vh}.reader-help{font-size:13px}footer{display:block}footer span{display:block;margin-top:10px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}