:root{--bg: #0d0f12;--surface: #161a20;--surface-hover: #1c2129;--border: #2a313c;--text: #e6e9ef;--text-muted: #8b92a0;--accent: #22c55e;--accent-dim: #16a34a;--danger: #ef4444;--warning: #f59e0b;--radius: 10px;--font: "DM Sans", system-ui, sans-serif}*{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}#root{min-height:100vh}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.admin-layout{display:flex;min-height:100vh}.admin-sidebar{width:240px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column}.admin-main{flex:1;display:flex;flex-direction:column;min-width:0}.admin-header{height:56px;flex-shrink:0;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;gap:16px}.admin-page{flex:1;overflow:auto;padding:24px;background:var(--bg)}.sidebar-nav{list-style:none;margin:0;padding:12px 0}.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:12px 20px;color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:500;transition:background .15s,color .15s}.sidebar-nav a:hover{background:var(--surface-hover);color:var(--text);text-decoration:none}.sidebar-nav a.active{background:#22c55e1a;color:var(--accent);border-right:3px solid var(--accent)}.sidebar-brand{padding:20px;font-size:18px;font-weight:700;color:var(--text);border-bottom:1px solid var(--border)}.sidebar-brand span{color:var(--accent)}.user-menu{display:flex;align-items:center;gap:12px;font-size:14px}.user-menu .email{color:var(--text-muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-menu .btn{padding:6px 12px;border-radius:var(--radius);border:1px solid var(--border);background:transparent;color:var(--text-muted);font-size:13px;cursor:pointer}.user-menu .btn:hover{background:var(--surface-hover);color:var(--text)}.user-menu .btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.user-menu .btn-primary:hover{background:var(--accent-dim);color:#fff}