/* V50 App-Wide Finish */
:root{--v50-gold:#d6b25c;--v50-panel:rgba(10,20,29,.92);--v50-line:rgba(214,178,92,.16)}
html{scroll-padding-top:86px}.study-app{background:radial-gradient(circle at 50% -10%,rgba(38,70,88,.22),transparent 34%),#061018}
.study-app main{max-width:1180px;margin-inline:auto}.study-app section{scroll-margin-top:92px}
.v50-statusbar{display:flex;align-items:center;justify-content:space-between;gap:.8rem;margin:.8rem 0 1.1rem;padding:.7rem .85rem;border:1px solid var(--v50-line);border-radius:14px;background:rgba(255,255,255,.025);font-size:.78rem}.v50-statusbar strong{color:#f0d58d}.v50-statusbar span{opacity:.72}.v50-status-actions{display:flex;gap:.45rem;flex-wrap:wrap}.v50-chip{border:1px solid rgba(214,178,92,.2);background:rgba(214,178,92,.06);border-radius:999px;padding:.34rem .55rem;color:inherit;text-decoration:none}
.v50-skip{position:fixed;left:.7rem;top:.7rem;z-index:9999;transform:translateY(-180%);background:#fff;color:#000;padding:.55rem .8rem;border-radius:8px}.v50-skip:focus{transform:none}
.v50-focus-visible :focus-visible,.study-app :focus-visible{outline:3px solid #f1ce73!important;outline-offset:3px!important}
.v50-backtop{position:fixed;right:1rem;bottom:5.3rem;z-index:90;width:42px;height:42px;border-radius:50%;border:1px solid rgba(214,178,92,.28);background:rgba(6,16,24,.94);color:#f0d58d;display:grid;place-items:center;box-shadow:0 10px 28px rgba(0,0,0,.3);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}.v50-backtop.show{opacity:1;pointer-events:auto;transform:none}
.v50-first-run{border:1px solid rgba(214,178,92,.22);background:linear-gradient(145deg,rgba(214,178,92,.08),rgba(255,255,255,.025));border-radius:18px;padding:1rem;margin:1rem 0}.v50-first-run h2{font-family:Georgia,serif;margin:.1rem 0 .35rem}.v50-first-run p{max-width:70ch}.v50-first-actions{display:flex;gap:.55rem;flex-wrap:wrap;margin-top:.75rem}
.v50-section-kicker{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#d6b25c}.v50-muted{opacity:.7}
@media(max-width:700px){html{scroll-padding-top:70px}.study-app main{padding-bottom:5.6rem}.v50-statusbar{align-items:flex-start;flex-direction:column}.v50-backtop{bottom:5.7rem}.site-footer{padding-bottom:5.5rem}.v45-study-nav{position:sticky;top:0;z-index:70;backdrop-filter:blur(14px);background:rgba(6,16,24,.9)}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}