:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f7f8fa;--foreground:#171717;--muted:#5f6b7a;--panel:#fff;--accent:#0f766e;--border:#d8dee6}*{box-sizing:border-box}html,body{min-height:100%}body{background:var(--background);color:var(--foreground);margin:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit}.site-header{z-index:10;background:color-mix(in srgb, var(--background) 92%, white);border-bottom:1px solid var(--border);position:sticky;top:0}.site-nav{justify-content:space-between;align-items:center;gap:1rem;max-width:72rem;margin:0 auto;padding:.9rem clamp(1rem,4vw,2rem);display:flex}.brand-link,.nav-link,.button-link{text-decoration:none}.brand-link{color:var(--foreground);font-size:1rem;font-weight:800}.nav-actions{justify-content:flex-end;align-items:center;gap:.8rem;min-width:0;display:flex}.nav-link,.nav-user{color:var(--muted);font-size:.95rem}.nav-user{text-overflow:ellipsis;white-space:nowrap;max-width:min(18rem,36vw);overflow:hidden}.button-link,.primary-button{color:#fff;min-height:2.5rem;font:inherit;background:var(--accent);border:1px solid var(--accent);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:.65rem 1rem;font-weight:700;display:inline-flex}.hero-action{width:fit-content;margin-top:.5rem}.button-link-secondary{color:var(--accent);background:0 0}.primary-button{width:100%}.checkout-form{margin:0}.primary-button:disabled{cursor:not-allowed;opacity:.7}.home{gap:2rem;min-height:calc(100vh - 4.5rem);padding:clamp(2rem,6vw,5rem);display:grid}.intro{align-self:end;max-width:48rem}.eyebrow{color:var(--accent);letter-spacing:0;text-transform:uppercase;margin:0 0 .75rem;font-size:.875rem;font-weight:700}h1,h2,p{margin-top:0}h1{margin-bottom:1rem;font-size:clamp(2.5rem,7vw,5.5rem);line-height:.95}.summary{max-width:40rem;color:var(--muted);font-size:1.2rem;line-height:1.6}.course-list{grid-template-columns:repeat(auto-fit,minmax(min(18rem,100%),1fr));align-self:start;gap:1rem;display:grid}.course-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;flex-direction:column;justify-content:space-between;gap:1rem;min-height:11rem;padding:1.25rem;display:flex}.course-card h2{margin-bottom:.75rem;font-size:1.2rem;line-height:1.25}.course-card h2 a{text-decoration:none}.course-card p{color:var(--muted);margin-bottom:0;line-height:1.5}.course-card-body{gap:.35rem;display:grid}.course-page-preview{gap:.35rem;margin:.55rem 0 0;padding:0;list-style:none;display:grid}.course-page-preview li{min-width:0;color:var(--muted);gap:.5rem;font-size:.9rem;line-height:1.35;display:flex}.course-page-preview span{color:var(--accent);flex:none;font-weight:800}.course-page-preview strong{min-width:0;color:var(--foreground);overflow-wrap:anywhere;font-weight:700}.course-meta{color:#7c4a03;text-transform:uppercase;font-size:.85rem;font-weight:800}.text-link{width:fit-content;color:var(--accent);text-underline-offset:.18em;font-weight:800;text-decoration-thickness:.08em}.catalog-page,.course-detail-page{width:min(100%,72rem);margin:0 auto;padding:clamp(2rem,6vw,5rem) clamp(1rem,4vw,2rem)}.catalog-header{max-width:44rem;margin-bottom:2rem}.empty-state{background:var(--panel);border:1px solid var(--border);border-radius:8px;max-width:36rem;padding:1.25rem}.empty-state h2{margin-bottom:.75rem;font-size:1.2rem}.empty-state p{color:var(--muted);margin-bottom:0;line-height:1.5}.course-detail-layout{grid-template-columns:minmax(0,1fr) minmax(18rem,22rem);align-items:start;gap:clamp(1.5rem,4vw,3rem);display:grid}.course-detail-main{min-width:0}.course-description{max-width:46rem;color:var(--foreground);font-size:1.05rem;line-height:1.7}.inline-notice{color:#155f35;background:#edf8f1;border:1px solid #b9dfc6;border-radius:6px;max-width:46rem;margin:1rem 0 0;padding:.8rem .9rem;font-weight:700;line-height:1.45}.book-outline{margin-top:clamp(2rem,5vw,3.5rem)}.section-heading-row{justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:1rem;display:flex}.section-heading-row h2{margin-bottom:0;font-size:1.5rem}.section-heading-row span{color:var(--muted);white-space:nowrap;font-weight:700}.book-page-list{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.book-page-list li{background:var(--panel);border:1px solid var(--border);border-radius:8px;grid-template-columns:3.25rem minmax(0,1fr);align-items:start;gap:1rem;padding:1rem;display:grid}.book-page-position{min-height:2.5rem;color:var(--accent);background:#e6f3f1;border-radius:6px;justify-content:center;align-items:center;font-weight:800;display:inline-flex}.book-page-list h3{margin:0 0 .3rem;font-size:1rem;line-height:1.35}.book-page-list p{color:var(--muted);margin:0;line-height:1.45}.purchase-panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;gap:1rem;padding:1.25rem;display:grid;position:sticky;top:5.5rem}.purchase-panel h2{margin-bottom:0;font-size:1.2rem}.purchase-panel p{color:var(--muted);margin:0;line-height:1.5}.purchase-actions{justify-items:start;gap:.85rem;display:grid}.auth-page,.account-page,.checkout-page{width:min(100%,72rem);margin:0 auto;padding:clamp(2rem,6vw,5rem) clamp(1rem,4vw,2rem)}.auth-page,.checkout-page{place-items:center;min-height:calc(100vh - 4.5rem);display:grid}.auth-panel,.status-panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;width:min(100%,28rem);padding:clamp(1.25rem,4vw,2rem)}.status-panel p{color:var(--muted);line-height:1.55}.gated-state{background:var(--panel);border:1px solid var(--border);border-radius:8px;width:min(100%,36rem);padding:clamp(1.25rem,4vw,2rem)}.gated-state h1{margin-bottom:1rem;font-size:clamp(2rem,6vw,3.5rem);line-height:1}.gated-state p{color:var(--muted);line-height:1.55}.status-actions{flex-wrap:wrap;align-items:center;gap:.85rem;margin-top:1.25rem;display:flex}.compact-panel{text-align:center}.auth-copy{color:var(--muted);margin-bottom:1.5rem;line-height:1.55}.auth-form{gap:1rem;display:grid}.auth-form label{color:var(--foreground);gap:.45rem;font-weight:700;display:grid}.auth-form input{width:100%;min-height:2.8rem;color:var(--foreground);font:inherit;border:1px solid var(--border);background:#fff;border-radius:6px;padding:.7rem .8rem}.auth-form input:focus{outline:3px solid color-mix(in srgb, var(--accent) 28%, transparent);border-color:var(--accent)}.form-error{color:#8a1f1f;background:#fff0f0;border:1px solid #f2c4c4;border-radius:6px;margin:0;padding:.75rem;line-height:1.45}.auth-switch{color:var(--muted);text-align:center;margin:0;line-height:1.45}.auth-switch a{color:var(--accent);font-weight:700}.account-header{max-width:44rem;margin-bottom:2rem}.account-grid{grid-template-columns:repeat(auto-fit,minmax(min(20rem,100%),1fr));gap:1rem;display:grid}.detail-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:1.25rem}.detail-card h2{margin-bottom:1rem;font-size:1.2rem}.detail-card dl{gap:.9rem;margin:0;display:grid}.detail-card dl div{gap:.25rem;display:grid}.detail-card dt{color:var(--muted);text-transform:uppercase;font-size:.85rem;font-weight:700}.detail-card dd{overflow-wrap:anywhere;min-width:0;margin:0;line-height:1.45}.detail-card p{color:var(--muted);margin-bottom:0;line-height:1.5}.detail-card-link{margin-top:1rem;display:inline-flex}.dashboard-page{width:min(100%,72rem);margin:0 auto;padding:clamp(2rem,6vw,5rem) clamp(1rem,4vw,2rem)}.dashboard-header{max-width:44rem;margin-bottom:2rem}.dashboard-course-list{grid-template-columns:repeat(auto-fit,minmax(min(22rem,100%),1fr));gap:1rem;display:grid}.dashboard-course-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;align-content:space-between;gap:1.25rem;min-height:15rem;padding:1.25rem;display:grid}.dashboard-course-card h2{margin-bottom:.75rem;font-size:1.35rem}.dashboard-course-card p{color:var(--muted);margin-bottom:0;line-height:1.5}.dashboard-card-footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.dashboard-card-footer span{color:var(--muted);font-size:.9rem;font-weight:700}@media (max-width:42rem){.site-nav,.nav-actions{align-items:flex-start}.site-nav{flex-direction:column}.nav-actions{flex-wrap:wrap;justify-content:flex-start}.nav-user{flex-basis:100%;max-width:100%}.course-detail-layout{grid-template-columns:1fr}.purchase-panel{position:static}.section-heading-row{flex-direction:column;align-items:flex-start;gap:.35rem}.book-page-list li{grid-template-columns:2.75rem minmax(0,1fr)}}