.admin-shell{background:var(--bg);grid-template-columns:240px 1fr;min-height:100vh;display:grid}.admin-sidebar{background:var(--surface-1);border-right:1px solid var(--border);flex-direction:column;gap:1rem;padding:1.5rem 1rem;display:flex}.admin-sidebar h1{color:var(--text);margin:0;font-size:1rem}.admin-nav{flex-direction:column;gap:.35rem;display:flex}.admin-nav a{border-radius:var(--r-sm);color:var(--text-soft);padding:.55rem .75rem;text-decoration:none}.admin-nav a:hover,.admin-nav a.active{background:var(--brand-bg);color:var(--brand)}.admin-main{padding:1.5rem 2rem}.admin-card{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow-sm);padding:1.25rem}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid var(--border);padding:.65rem .75rem;font-size:.92rem}.admin-form{gap:.85rem;max-width:420px;display:grid}.admin-form label{color:var(--text-soft);gap:.35rem;font-size:.9rem;display:grid}.admin-form input,.admin-form select{border:1px solid var(--border-strong);border-radius:var(--r-sm);background:var(--surface-0);color:var(--text);padding:.55rem .65rem}.admin-btn{border-radius:var(--r-sm);border:1px solid var(--brand-border);background:var(--brand-bg);color:var(--brand);cursor:pointer;justify-content:center;align-items:center;padding:.55rem .9rem;font-size:.9rem;text-decoration:none;display:inline-flex}.admin-btn:hover{filter:brightness(.98)}.landing-page{place-items:center;min-height:100vh;padding:2rem;display:grid}.landing-card{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r);width:100%;max-width:520px;box-shadow:var(--shadow);gap:1rem;padding:2rem;display:grid}.landing-card h1{margin:0}.landing-actions{flex-wrap:wrap;gap:.75rem;display:flex}.downloads-card{max-width:720px}.downloads-header{gap:.65rem;display:grid}.downloads-back{color:var(--text-soft);font-size:.88rem;text-decoration:none}.downloads-back:hover{color:var(--brand)}.download-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;display:grid}.download-tile{border:1px solid var(--border);border-radius:var(--r);background:var(--surface-0);gap:.75rem;padding:1.1rem;display:grid}.download-tile-head{gap:.25rem;display:grid}.download-os{font-size:1.05rem;font-weight:600}.download-platform{color:var(--text-soft);font-size:.88rem}.download-hint{color:var(--text-soft);margin:0;font-size:.9rem;line-height:1.45}.download-btn{width:fit-content}.download-unavailable{color:var(--text-soft);font-size:.88rem;font-style:italic}.download-steps{border-top:1px solid var(--border);padding-top:1rem}.download-steps h2{margin:0 0 .5rem;font-size:1rem}.download-steps ol{color:var(--text-soft);gap:.35rem;margin:0;padding-left:1.2rem;font-size:.92rem;display:grid}