:root {
  --azul: #1B7FC4;
  --azul-oscuro: #145d92;
  --dorado: #ffd08a;
  --dorado-oscuro: #c9860b;
  --fondo: #fbf9f6;
  --texto: #22303f;
  --texto-tenue: #8a94a6;
  --exito: #2e9e5b;
  --alerta-bg: #fff4e0;
  --alerta-fg: #a9631a;
  --agotado-bg: #fdecea;
  --agotado-fg: #c0392b;
}

body {
  display: flex;
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

#sidebar {
  width: 180px;
  flex-shrink: 0;
  min-height: 100vh;
  box-sizing: border-box;
  background: var(--azul);
  padding: 20px 0;
  display: flex;
  flex-direction: column;
}

#sidebar .marca {
  padding: 0 20px 24px;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
}

#sidebar .marca span {
  color: var(--dorado);
}

#sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#sidebar nav a {
  padding: 10px 20px;
  border-left: 3px solid transparent;
  font-size: 13px;
  color: #e6f2fb;
  text-decoration: none;
}

#sidebar nav a.activo {
  background: rgba(255, 255, 255, .12);
  border-left-color: var(--dorado);
  color: #fff;
  font-weight: 600;
}

main {
  flex: 1;
  box-sizing: border-box;
}