:root{font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:#172b28;background:#f4f6f1;line-height:1.6;--accent:#1d6353;--line:#d7dfd4}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:1240px;margin:auto;padding:24px 36px}header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:.08em;text-decoration:none;color:var(--accent)}.brand span{font-weight:400;letter-spacing:0;margin-left:20px;color:#52665d}h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.12;letter-spacing:-.04em;margin:12px 0 24px}h2{font-size:1.35rem;line-height:1.3}h3{font-size:1.1rem}.eyebrow{text-transform:uppercase;font-size:.75rem;letter-spacing:.18em;color:var(--accent);font-weight:700}.muted,footer{color:#53655e;font-size:.9rem}.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:32px 0}form,article,.job,#issuance{padding:24px;background:white;border:1px solid var(--line);border-radius:12px}label{display:block;margin:16px 0 5px;font-weight:600}input,select,textarea{font:inherit;width:100%;padding:10px 12px;border:1px solid #a5b7ab;border-radius:6px;background:white;color:inherit}input[type=radio],input[type=checkbox]{width:auto;margin-right:10px}textarea{resize:vertical}button,.download-link{font:inherit;font-weight:600;color:white;background:var(--accent);border:1px solid var(--accent);border-radius:6px;padding:9px 16px;cursor:pointer;margin:12px 8px 0 0;display:inline-block;text-decoration:none}button:hover,.download-link:hover{background:#124c3e}button:disabled{opacity:.55;cursor:wait}button.secondary{color:var(--accent);background:transparent}a{color:var(--accent)}:focus-visible{outline:3px solid #c78324;outline-offset:3px}.columns{display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px}.workspace-heading{display:flex;align-items:center;justify-content:space-between}#course-list button{display:block;text-align:left;width:100%;background:white;color:var(--accent);border-color:var(--line)}details{background:white;border:1px solid var(--line);border-radius:8px;padding:16px;margin:16px 0}summary{font-weight:600;cursor:pointer}fieldset{border:1px solid var(--line);border-radius:6px;margin:18px 0;padding:16px}legend{font-weight:600;padding:0 6px}fieldset label{font-weight:400}progress{width:100%;height:12px;accent-color:var(--accent)}.lesson-text{white-space:pre-wrap;overflow-wrap:anywhere;margin:20px 0;font-size:1.04rem}.job{margin:12px 0}#status:not(:empty),#capabilities:not(:empty){padding:12px 18px;border-radius:8px;background:#e7eddc;margin:12px 0;overflow-wrap:anywhere}#status.error{background:#fbe4de;color:#853320}.skip{position:absolute;top:-100px;left:15px;background:white;padding:10px;z-index:3}.skip:focus{top:10px}[hidden]{display:none!important}footer{border-top:1px solid var(--line);margin-top:36px}#export textarea,#issued-token{font-family:ui-monospace,monospace;overflow-wrap:anywhere}.job-output{white-space:pre-wrap;overflow-wrap:anywhere}@media(max-width:800px){header,main,footer{padding:20px}.columns,.access-grid{grid-template-columns:1fr}.brand span{display:none}article,form{padding:18px}.workspace-heading{align-items:flex-start}h1{font-size:2.2rem}}
header nav,footer nav{display:flex;gap:20px;flex-wrap:wrap}header nav a,footer nav a{font-size:.9rem;font-weight:600;text-decoration:none}footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}@media(max-width:800px){header{flex-wrap:wrap;gap:12px}}
.app-shell{display:grid;grid-template-columns:268px minmax(0,1fr);min-height:70vh;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 16px 50px #19382a0d}.app-sidebar{display:flex;flex-direction:column;background:#f0f4ee;border-right:1px solid var(--line);padding:20px 14px;gap:20px}.sidebar-brand{font-size:1.12rem;font-weight:800;text-decoration:none;padding:8px 12px}.sidebar-brand span{display:block;font-size:.75rem;font-weight:600;color:#65776d;letter-spacing:.04em}.app-nav{display:grid;gap:3px}.app-nav a{display:block;text-decoration:none;color:#30463d;font-weight:600;border-radius:9px;padding:10px 12px}.app-nav a:hover,.app-nav a.active{background:#dce9db;color:#124c3e}.sidebar-section{min-height:180px;overflow:auto}.sidebar-title{display:flex;justify-content:space-between;align-items:center;padding:0 8px}.sidebar-title h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:#667b70}.icon-button{margin:0;padding:0 8px;background:transparent;color:var(--accent);border:0;font-size:1.35rem}.icon-button:hover{background:#dce9db}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:12px}.course-item{padding:2px 4px 8px}.course-item small{display:block;padding-left:12px;color:#677970}.course-link{display:block!important;width:100%;text-align:left;margin:0!important;border:0!important;background:transparent!important;color:#29483b!important;padding:8px 12px!important;border-radius:9px!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.course-link:hover,.course-link[aria-current=page]{background:#dce9db!important}.app-main{min-width:0;padding:28px clamp(20px,4vw,52px)}.app-view{max-width:900px;margin:auto}.app-view>h2{margin-top:0}.app-view article{border:0;padding:4px 0}.app-view form{max-width:720px}.app-view details{max-width:720px}#source-choices label{display:flex;align-items:center;gap:5px;padding:5px 2px;margin:0;cursor:pointer}#source-choices input{accent-color:var(--accent);margin:0}#source-choices input:disabled+span{opacity:.5}#suggestions>div{padding:14px;border-bottom:1px solid var(--line)}#view-activity .job{max-width:760px}#course section{border-top:1px solid var(--line);padding-top:14px;margin-top:20px}#course section section{border:0}.workspace-heading h1{font-size:clamp(1.8rem,3vw,2.6rem);margin:0 0 26px}.workspace-heading .eyebrow{margin:0 0 4px}@media(max-width:800px){.app-shell{grid-template-columns:1fr}.app-sidebar{border-right:0;border-bottom:1px solid var(--line);gap:8px}.app-nav{display:flex;overflow-x:auto}.app-nav a{white-space:nowrap}.sidebar-section{max-height:180px;min-height:0}.sidebar-bottom{margin-top:0}.app-main{padding:20px}.app-view form{max-width:none}}
.course-status{max-width:900px;margin:0 auto 22px;padding:16px 20px;border:1px solid #b5cfbd;border-radius:12px;background:#edf6ec}.course-status.failed{border-color:#e4b8ab;background:#fff0eb}.course-status p{margin:6px 0 0}.course-status button{margin-top:10px}
.studio-auth header nav,.studio-auth footer{display:none}.studio-auth header{max-width:none;padding:10px 24px}.studio-auth header .brand span{display:none}.studio-auth main{max-width:none;padding:16px 20px}.studio-auth #capabilities{font-size:.8rem;max-width:1200px;margin:0 auto 12px}.studio-auth .app-shell{min-height:calc(100vh - 120px)}