:root{--teal:#19b5a5;--ink:#101827;--muted:#627184;--line:#dce7e5;--bg:#f2f8f7}*{box-sizing:border-box}body{margin:0;background:linear-gradient(145deg,#effbf8,#f8fafc 55%,#fff);font-family:Inter,Arial,sans-serif;color:var(--ink)}.admin-shell{width:min(980px,calc(100% - 32px));margin:0 auto;padding:36px 0 70px}header{display:flex;align-items:center;gap:22px;margin-bottom:26px}header img{width:170px}header p{margin:0;color:#118c80;font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:12px}h1{margin:5px 0 0;font-size:clamp(25px,4vw,38px)}header .quiet{margin-left:auto}.panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(22px,4vw,38px);box-shadow:0 18px 55px rgba(22,65,62,.09)}h2{margin:0 0 8px}.panel>p,.section-head p{color:var(--muted);margin:0 0 22px}label{display:grid;gap:8px;font-weight:700}input{width:100%;border:1px solid #cbd8d6;border-radius:11px;padding:13px 14px;font:inherit}input:focus{outline:3px solid rgba(25,181,165,.18);border-color:var(--teal)}button{border:0;border-radius:11px;padding:12px 18px;background:var(--teal);color:#fff;font:inherit;font-weight:800;cursor:pointer}button:disabled{opacity:.65}.quiet{background:#e7f5f3;color:#08786e}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:start}.course{border-top:1px solid var(--line);padding:24px 0}.course:first-child{border-top:0;padding-top:4px}.course h3{font-size:17px;line-height:1.45;margin:8px 0 16px}.badge{display:inline-block;background:#e7f5f3;color:#08786e;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}.actions{display:flex;gap:14px;align-items:center;margin-top:14px}.actions a{color:#08786e;font-weight:700}.actions span,#login-status,#editor-status{color:var(--muted);font-size:14px}#login-form{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:end;max-width:600px}#login-status{grid-column:1/-1}@media(max-width:650px){.admin-shell{width:min(100% - 20px,980px);padding-top:18px}header{align-items:flex-start;flex-wrap:wrap}header img{width:145px}header .quiet{margin-left:0}.section-head{display:block}.section-head .quiet{margin-bottom:18px}#login-form{grid-template-columns:1fr}.actions{align-items:stretch;flex-direction:column}.actions button{width:100%}}