:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg0:#e8f0ea;--bg1:#f7faf7;--ink:#132018;--muted:#3d5345;--accent:#1f6b4a;--line:#c5d5c9;--panel:#ffffffb8;font-family:Segoe UI,Iosevka Aile,"Source Sans 3",sans-serif}*{box-sizing:border-box}body{min-height:100vh;color:var(--ink);background:radial-gradient(1200px 600px at 10% -10%, #b7d8c4 0%, transparent 55%), radial-gradient(900px 500px at 100% 0%, #d9e8df 0%, transparent 50%), linear-gradient(180deg, var(--bg0), var(--bg1));margin:0}.shell{max-width:720px;margin:0 auto;padding:4rem 1.25rem 3rem}.shell.wide{max-width:1100px}.tabs{flex-wrap:wrap;gap:.5rem;margin-top:1rem;display:flex}.tabs button.active{background:#134c35}.courses-layout{grid-template-columns:1fr;gap:1rem;display:grid}@media (width>=900px){.courses-layout{grid-template-columns:1fr 1.2fr}}textarea{border:1px solid var(--line);width:100%;font:inherit;resize:vertical;padding:.55rem .65rem}.hero h1{letter-spacing:-.03em;margin:.2rem 0 .75rem;font-family:Fraunces,Iowan Old Style,Palatino Linotype,serif;font-size:clamp(2.8rem,8vw,4.2rem);line-height:1.05}.eyebrow{text-transform:uppercase;letter-spacing:.14em;color:var(--accent);margin:0;font-size:.75rem;font-weight:700}.lede{color:var(--muted);max-width:38rem;font-size:1.05rem;line-height:1.55}.panel{background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);margin-top:2rem;padding:1.25rem 1.35rem}.panel h2{margin:0 0 .75rem;font-size:1.1rem}.panel ul{color:var(--muted);margin:0;padding-left:1.1rem;line-height:1.6}.note{color:var(--muted);margin:1rem 0 0;font-size:.92rem}.form{gap:.85rem;display:grid}.form label{color:var(--muted);gap:.35rem;font-size:.92rem;display:grid}.form input{border:1px solid var(--line);font:inherit;color:var(--ink);background:#fff;padding:.55rem .65rem}button{border:1px solid var(--accent);background:var(--accent);color:#fff;font:inherit;cursor:pointer;justify-self:start;padding:.55rem .9rem}button:disabled{opacity:.6;cursor:not-allowed}.error{color:#8b1e1e}.user-list{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.user-list li{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;padding-bottom:.75rem;display:flex}.meta{color:var(--muted);font-size:.85rem}