:root{--admin-bg: #f5f6f8;--admin-surface: #ffffff;--admin-text: #1f2328;--admin-muted: #667085;--admin-border: #e5e7eb;--admin-primary: #111111;--admin-accent: #ffd600;--admin-radius: 16px;--admin-shadow: 0 8px 22px rgba(0,0,0,.08);--admin-sidebar-width: 260px;--admin-topbar-height: 72px}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;width:100%;height:100%}body{font-family:Arial,Helvetica,sans-serif;background:var(--admin-bg);color:var(--admin-text)}button,input,select,textarea{font:inherit}.admin-layout{width:100%;height:100vh;display:flex;overflow:hidden}.admin-layout__sidebar{width:var(--admin-sidebar-width);background:#111;color:#fff;padding:24px 16px;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto;overflow-x:hidden}.admin-layout__main{flex:1;min-width:0;display:flex;flex-direction:column;height:100vh;overflow:hidden}.admin-layout__topbar{height:var(--admin-topbar-height);background:var(--admin-surface);border-bottom:1px solid var(--admin-border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:20;flex-shrink:0}.admin-layout__content{flex:1;min-height:0;overflow:auto;padding:24px}