:root{--bg:#f5f7f8;--panel:#fff;--panel-soft:#f9faf8;--text:#141817;--muted:#68706d;--line:#dfe5e2;--line-strong:#cbd6d1;--accent:#0b8f7a;--accent-strong:#067362;--accent-soft:#e2f4ef;--amber:#d78a1d;--danger:#b42318;--shadow:0 18px 50px #14181714}*{box-sizing:border-box}html,body{min-height:100%}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea,select{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}.studio-shell{grid-template-columns:88px minmax(220px,286px) minmax(0,1fr) minmax(300px,372px);min-height:100vh;display:grid;overflow:hidden}.side-nav{color:#eef7f4;background:#101513;flex-direction:column;align-items:center;gap:28px;padding:20px 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(max-width:900px){.admin-shell{padding:18px}.admin-header,.usage-header{grid-template-columns:1fr}.admin-actions{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-flow:row}.admin-meta-grid,.admin-card-grid,.usage-breakdown{grid-template-columns:1fr}.admin-table{overflow-x:auto}.admin-table-row{min-width:760px}}