:root{--ink:#17324d;--muted:#647482;--paper:#f5f2ea;--white:#fff;--line:#d8d6cf;--accent:#a44731}
*{box-sizing:border-box}html{min-height:100%}body{min-height:100vh;margin:0;color:var(--ink);background:var(--paper);font-family:"DM Sans",sans-serif;line-height:1.55}a{color:inherit}.access-shell{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr)}.course-story{position:relative;min-height:100vh;padding:clamp(2rem,5vw,5rem);display:flex;flex-direction:column;overflow:hidden;background:var(--ink);color:#fff}.course-story::after{content:"";position:absolute;width:38vw;aspect-ratio:1;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-13vw;bottom:-12vw;box-shadow:0 0 0 7vw rgba(255,255,255,.025),0 0 0 14vw rgba(255,255,255,.018)}.back-link{position:relative;z-index:1;align-self:flex-start;text-decoration:none;font-size:.72rem;font-weight:600;letter-spacing:.03em}.back-link:hover,.back-link:focus-visible{color:#f0cdbc}.course-identity{position:relative;z-index:1;margin:auto 0;max-width:700px}.course-code{margin:0 0 1.35rem;color:#f0b9a9;font-size:.68rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase}.course-identity h1{max-width:720px;margin:0;font:400 clamp(3rem,5.6vw,5.6rem)/.94 "Newsreader",serif;letter-spacing:-.05em}.course-description{max-width:570px;margin:2rem 0 0;color:#cbd5dc;font:400 clamp(1.05rem,1.5vw,1.3rem)/1.55 "Newsreader",serif}.course-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:.65rem 1.5rem;margin-top:3rem;padding-top:1.25rem;border-top:1px solid rgba(255,255,255,.17);color:#aebdc8;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em}.access-side{min-height:100vh;padding:clamp(2rem,6vw,6rem);display:flex;align-items:center;background:var(--paper)}.access-card{width:100%;max-width:510px;margin:auto}.access-marker{width:42px;height:5px;margin-bottom:2.1rem;background:var(--accent)}.access-label{margin:0 0 .55rem;color:var(--accent);font-size:.68rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase}.access-card h2{margin:0;font:400 clamp(2.1rem,4vw,3.4rem)/1 "Newsreader",serif;letter-spacing:-.04em}.access-intro{max-width:440px;margin:1.4rem 0 2.3rem;color:var(--muted);font-size:.9rem}.access-form label{display:block;margin-bottom:.5rem;font-size:.72rem;font-weight:600}.password-row{display:flex;border-bottom:1px solid var(--ink)}.password-row input{width:100%;min-width:0;padding:.95rem .1rem;border:0;outline:0;background:transparent;color:var(--ink);font:inherit}.password-row input:focus-visible{box-shadow:inset 0 -2px var(--accent)}.password-row button{flex:0 0 auto;padding:.85rem 1.15rem;border:0;background:var(--ink);color:#fff;font:600 .72rem "DM Sans",sans-serif;cursor:pointer}.password-row button:hover,.password-row button:focus-visible{background:var(--accent)}.access-message{min-height:1.5rem;margin:.85rem 0 0;color:var(--muted);font-size:.7rem}.access-note{margin:2.3rem 0 0;padding-top:1rem;border-top:1px solid var(--line);color:var(--muted);font-size:.67rem}.access-note strong{color:var(--ink)}.theme-ai{--accent:#3d7289}.theme-ai .course-story{background:#183442}.theme-ai .course-code{color:#9fc9d8}.theme-econ{--accent:#a87527}.theme-econ .course-story{background:#263e43}.theme-econ .course-code{color:#e3c58f}
@media(max-width:850px){.access-shell{grid-template-columns:1fr}.course-story{min-height:58vh;padding:2rem 6vw 3.5rem}.course-identity{margin:5rem 0 3rem}.course-identity h1{font-size:clamp(2.8rem,10vw,4.5rem)}.access-side{min-height:auto;padding:4rem 6vw}.access-card{max-width:none}.course-story::after{width:75vw;right:-30vw;bottom:-30vw}}
@media(max-width:480px){.password-row{display:block;border:0}.password-row input{border-bottom:1px solid var(--ink)}.password-row button{width:100%;margin-top:.8rem;padding:1rem}.course-meta{display:grid}.access-side{padding-top:3rem;padding-bottom:3rem}}