:root{--bg: #ffffff;--muted: #666666;--text: #111111;--border: #f2f2f2;--accent: #111111;--radius: 8px;--max-width: 1200px}*{box-sizing:border-box}html,body,#root{height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial}.app-shell{max-width:var(--max-width);margin:0 auto;padding:24px}.header{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:16px}.logo{height:112px}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px}.clients-list{min-width:260px}.btn{background:var(--accent);color:#fff;padding:8px 12px;border-radius:6px;border:none;cursor:pointer}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.admin-tabs-wrap{display:grid;gap:8px}.admin-tabs-desktop{display:flex;gap:8px;flex-wrap:wrap}.admin-tab-btn{padding:8px 12px;border-radius:999px;border:1px solid #ddd;background:#fff;color:#111}.admin-tab-btn.active{background:#111;color:#fff;border-color:#111}.admin-tabs-mobile{display:none}@media(max-width:640px){.app-shell{padding:12px}.logo{height:88px}.admin-tabs-desktop{display:none}.admin-tabs-mobile{display:block}}