* { box-sizing: border-box; margin: 0; padding: 0; font-family: "Segoe UI", Arial, sans-serif; }
body { background: #f5f5f5; display: flex; min-height: 100vh; }
.layout-wrap { display: flex; width: 100%; }
.sidebar {
  width: 240px; background: #1A1A2E; color: #fff; min-height: 100vh;
  display: flex; flex-direction: column; padding: 20px 0; flex-shrink: 0;
}
.sidebar-logo { display: flex; align-items: center; gap: 10px; padding: 0 20px 20px; border-bottom: 1px solid #ffffff15; margin-bottom: 16px; }
.logo-cuadro { width: 38px; height: 38px; background: #E53E3E; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 16px; }
.logo-titulo { font-size: 13px; font-weight: 800; line-height: 1.2; }
.logo-sub { font-size: 10px; color: #ffffff66; }
.nav-section-titulo { font-size: 10px; color: #ffffff55; padding: 0 20px; margin-bottom: 8px; letter-spacing: 1px; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 11px 20px; color: #ffffffcc;
  text-decoration: none; font-size: 13px; font-weight: 600; transition: .15s;
}
.nav-item:hover { background: #ffffff10; }
.nav-activo { background: #E53E3E22; color: #fff; border-left: 3px solid #E53E3E; }
.nav-icono { font-size: 16px; width: 20px; text-align: center; }
.sidebar-footer { margin-top: auto; padding: 16px 20px 0; border-top: 1px solid #ffffff15; }
.footer-usuario { font-size: 12px; color: #ffffffaa; margin-bottom: 8px; }
.footer-salir { background: none; border: none; color: #ffffff66; cursor: pointer; font-size: 12px; padding: 0; }
.contenido { flex: 1; min-height: 100vh; overflow-x: hidden; }