*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#2563eb;--primary-hover:#1d4ed8;--danger:#dc2626;--danger-hover:#b91c1c;--bg:#f8fafc;--sidebar-bg:#1e293b;--sidebar-text:#cbd5e1;--sidebar-active:#2563eb;--card-bg:#fff;--border:#e2e8f0;--text:#334155;--text-light:#64748b;--text-dark:#0f172a;--success:#16a34a;--shadow:0 1px 3px #0000001a, 0 1px 2px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--radius:8px}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}#root{min-height:100vh}.login-container{background:linear-gradient(135deg,#1e293b 0%,#334155 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:400px;padding:40px}.login-header{text-align:center;margin-bottom:32px}.login-header 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